GAS is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
02110-1301, USA. */
#include <string.h>
-#define NO_RELOC 0
+#define NO_RELOC 0
#include "as.h"
#include "safe-ctype.h"
static struct
{
- symbolS * proc_start;
- symbolS * table_entry;
- symbolS * personality_routine;
- int personality_index;
+ symbolS * proc_start;
+ symbolS * table_entry;
+ symbolS * personality_routine;
+ int personality_index;
/* The segment containing the function. */
- segT saved_seg;
- subsegT saved_subseg;
+ segT saved_seg;
+ subsegT saved_subseg;
/* Opcodes generated from this function. */
unsigned char * opcodes;
- int opcode_count;
- int opcode_alloc;
+ int opcode_count;
+ int opcode_alloc;
/* The number of bytes pushed to the stack. */
- offsetT frame_size;
+ offsetT frame_size;
/* We don't add stack adjustment opcodes immediately so that we can merge
multiple adjustments. We can also omit the final adjustment
when using a frame pointer. */
- offsetT pending_offset;
+ offsetT pending_offset;
/* These two fields are set by both unwind_movsp and unwind_setfp. They
- hold the reg+offset to use when restoring sp from a frame pointer. */
- offsetT fp_offset;
- int fp_reg;
+ hold the reg+offset to use when restoring sp from a frame pointer. */
+ offsetT fp_offset;
+ int fp_reg;
/* Nonzero if an unwind_setfp directive has been seen. */
- unsigned fp_used:1;
+ unsigned fp_used:1;
/* Nonzero if the last opcode restores sp from fp_reg. */
- unsigned sp_restored:1;
+ unsigned sp_restored:1;
} unwind;
/* Bit N indicates that an R_ARM_NONE relocation has been output for
ARM_FLOAT_ABI_SOFT
};
-/* Types of processor to assemble for. */
+/* Types of processor to assemble for. */
#define ARM_1 ARM_ARCH_V1
#define ARM_2 ARM_ARCH_V2
#define ARM_3 ARM_ARCH_V2S
#define ARM_8 ARM_ARCH_V4
#define ARM_9 ARM_ARCH_V4T
#define ARM_STRONG ARM_ARCH_V4
-#define ARM_CPU_MASK 0x0000000f /* XXX? */
+#define ARM_CPU_MASK 0x0000000f /* XXX? */
#ifndef CPU_DEFAULT
#if defined __XSCALE__
#define CPU_DEFAULT (ARM_ARCH_XSCALE)
#else
#if defined __thumb__
-#define CPU_DEFAULT (ARM_ARCH_V5T)
+#define CPU_DEFAULT (ARM_ARCH_V5T)
#else
-#define CPU_DEFAULT ARM_ANY
+#define CPU_DEFAULT ARM_ANY
#endif
#endif
#endif
# endif
#endif /* ifndef FPU_DEFAULT */
-#define streq(a, b) (strcmp (a, b) == 0)
-#define skip_whitespace(str) while (*(str) == ' ') ++(str)
+#define streq(a, b) (strcmp (a, b) == 0)
static unsigned long cpu_variant;
/* Flags stored in private area of BFD structure. */
-static int uses_apcs_26 = FALSE;
-static int atpcs = FALSE;
+static int uses_apcs_26 = FALSE;
+static int atpcs = FALSE;
static int support_interwork = FALSE;
static int uses_apcs_float = FALSE;
-static int pic_code = FALSE;
+static int pic_code = FALSE;
/* Variables that we set while parsing command-line options. Once all
options have been read we re-process these values to set the real
# endif
#endif
-/* This array holds the chars that always start a comment. If the
- pre-processor is disabled, these aren't very useful. */
-const char comment_chars[] = "@";
-
-/* This array holds the chars that only start a comment at the beginning of
- a line. If the line seems to have the form '# 123 filename'
- .line and .file directives will appear in the pre-processed output. */
-/* Note that input_file.c hand checks for '#' at the beginning of the
- first line of the input file. This is because the compiler outputs
- #NO_APP at the beginning of its output. */
-/* Also note that comments like this one will always work. */
-const char line_comment_chars[] = "#";
-
-const char line_separator_chars[] = ";";
-
-/* Chars that can be used to separate mant
- from exp in floating point numbers. */
-const char EXP_CHARS[] = "eE";
-
-/* Chars that mean this number is a floating point constant. */
-/* As in 0f12.456 */
-/* or 0d1.2345e12 */
-
-const char FLT_CHARS[] = "rRsSfFdDxXeEpP";
-
-/* Prefix characters that indicate the start of an immediate
- value. */
-#define is_immediate_prefix(C) ((C) == '#' || (C) == '$')
-
#ifdef OBJ_ELF
-/* Pre-defined "_GLOBAL_OFFSET_TABLE_" */
+/* Pre-defined "_GLOBAL_OFFSET_TABLE_" */
symbolS * GOT_symbol;
#endif
instructions. */
static int thumb_mode = 0;
-typedef struct arm_fix
-{
- int thumb_mode;
-} arm_fix_data;
+/* If unified_syntax is true, we are processing the new unified
+ ARM/Thumb syntax. Important differences from the old ARM mode:
+
+ - Immediate operands do not require a # prefix.
+ - Conditional affixes always appear at the end of the
+ instruction. (For backward compatibility, those instructions
+ that formerly had them in the middle, continue to accept them
+ there.)
+ - The IT instruction may appear, and if it does is validated
+ against subsequent conditional affixes. It does not generate
+ machine code.
+
+ Important differences from the old Thumb mode:
+
+ - Immediate operands do not require a # prefix.
+ - Most of the V6T2 instructions are only available in unified mode.
+ - The .N and .W suffixes are recognized and honored (it is an error
+ if they cannot be honored).
+ - All instructions set the flags if and only if they have an 's' affix.
+ - Conditional affixes may be used. They are validated against
+ preceding IT instructions. Unlike ARM mode, you cannot use a
+ conditional affix except in the scope of an IT instruction. */
+
+static bfd_boolean unified_syntax = FALSE;
struct arm_it
{
- const char * error;
+ const char * error;
unsigned long instruction;
- int size;
+ int size;
+ int size_req;
+ int cond;
struct
{
bfd_reloc_code_real_type type;
- expressionS exp;
- int pc_rel;
+ expressionS exp;
+ int pc_rel;
} reloc;
-};
-
-struct arm_it inst;
-enum asm_shift_index
-{
- SHIFT_LSL = 0,
- SHIFT_LSR,
- SHIFT_ASR,
- SHIFT_ROR,
- SHIFT_RRX
-};
-
-struct asm_shift_properties
-{
- enum asm_shift_index index;
- unsigned long bit_field;
- unsigned int allows_0 : 1;
- unsigned int allows_32 : 1;
-};
-
-static const struct asm_shift_properties shift_properties [] =
-{
- { SHIFT_LSL, 0, 1, 0},
- { SHIFT_LSR, 0x20, 0, 1},
- { SHIFT_ASR, 0x40, 0, 1},
- { SHIFT_ROR, 0x60, 0, 0},
- { SHIFT_RRX, 0x60, 0, 0}
-};
-
-struct asm_shift_name
-{
- const char * name;
- const struct asm_shift_properties * properties;
-};
-
-static const struct asm_shift_name shift_names [] =
-{
- { "asl", shift_properties + SHIFT_LSL },
- { "lsl", shift_properties + SHIFT_LSL },
- { "lsr", shift_properties + SHIFT_LSR },
- { "asr", shift_properties + SHIFT_ASR },
- { "ror", shift_properties + SHIFT_ROR },
- { "rrx", shift_properties + SHIFT_RRX },
- { "ASL", shift_properties + SHIFT_LSL },
- { "LSL", shift_properties + SHIFT_LSL },
- { "LSR", shift_properties + SHIFT_LSR },
- { "ASR", shift_properties + SHIFT_ASR },
- { "ROR", shift_properties + SHIFT_ROR },
- { "RRX", shift_properties + SHIFT_RRX }
+ struct
+ {
+ unsigned reg;
+ unsigned imm;
+ unsigned present : 1; /* operand present */
+ unsigned isreg : 1; /* operand was a register */
+ unsigned immisreg : 1; /* .imm field is a second register */
+ unsigned hasreloc : 1; /* operand has relocation suffix */
+ unsigned writeback : 1; /* operand has trailing ! */
+ unsigned preind : 1; /* preindexed address */
+ unsigned postind : 1; /* postindexed address */
+ unsigned negative : 1; /* index register was negated */
+ unsigned shifted : 1; /* shift applied to operation */
+ unsigned shift_kind : 3; /* shift operation (enum shift_kind) */
+ } operands[6];
};
-/* Any kind of shift is accepted. */
-#define NO_SHIFT_RESTRICT 1
-/* The shift operand must be an immediate value, not a register. */
-#define SHIFT_IMMEDIATE 0
-/* The shift must be LSL or ASR and the operand must be an immediate. */
-#define SHIFT_LSL_OR_ASR_IMMEDIATE 2
-/* The shift must be ASR and the operand must be an immediate. */
-#define SHIFT_ASR_IMMEDIATE 3
-/* The shift must be LSL and the operand must be an immediate. */
-#define SHIFT_LSL_IMMEDIATE 4
+static struct arm_it inst;
#define NUM_FLOAT_VALS 8
"0.0", "1.0", "2.0", "3.0", "4.0", "5.0", "0.5", "10.0", 0
};
-/* Number of littlenums required to hold an extended precision number. */
+/* Number of littlenums required to hold an extended precision number. */
#define MAX_LITTLENUMS 6
LITTLENUM_TYPE fp_values[NUM_FLOAT_VALS][MAX_LITTLENUMS];
#define FAIL (-1)
#define SUCCESS (0)
-/* Whether a Co-processor load/store operation accepts write-back forms. */
-#define CP_WB_OK 1
-#define CP_NO_WB 0
-
#define SUFF_S 1
#define SUFF_D 2
#define SUFF_E 3
#define SUFF_P 4
-#define CP_T_X 0x00008000
-#define CP_T_Y 0x00400000
-#define CP_T_Pre 0x01000000
-#define CP_T_UD 0x00800000
-#define CP_T_WB 0x00200000
+#define CP_T_X 0x00008000
+#define CP_T_Y 0x00400000
-#define CONDS_BIT 0x00100000
-#define LOAD_BIT 0x00100000
+#define CONDS_BIT 0x00100000
+#define LOAD_BIT 0x00100000
#define DOUBLE_LOAD_FLAG 0x00000001
struct asm_cond
{
- const char * template;
+ const char * template;
unsigned long value;
};
-#define COND_ALWAYS 0xe0000000
-#define COND_MASK 0xf0000000
-
-static const struct asm_cond conds[] =
-{
- {"eq", 0x00000000},
- {"ne", 0x10000000},
- {"cs", 0x20000000}, {"hs", 0x20000000},
- {"cc", 0x30000000}, {"ul", 0x30000000}, {"lo", 0x30000000},
- {"mi", 0x40000000},
- {"pl", 0x50000000},
- {"vs", 0x60000000},
- {"vc", 0x70000000},
- {"hi", 0x80000000},
- {"ls", 0x90000000},
- {"ge", 0xa0000000},
- {"lt", 0xb0000000},
- {"gt", 0xc0000000},
- {"le", 0xd0000000},
- {"al", 0xe0000000},
- {"nv", 0xf0000000}
-};
+#define COND_ALWAYS 0xE
struct asm_psr
{
const char *template;
- bfd_boolean cpsr;
unsigned long field;
};
/* The bit that distinguishes CPSR and SPSR. */
#define SPSR_BIT (1 << 22)
-/* How many bits to shift the PSR_xxx bits up by. */
-#define PSR_SHIFT 16
-
-#define PSR_c (1 << 0)
-#define PSR_x (1 << 1)
-#define PSR_s (1 << 2)
-#define PSR_f (1 << 3)
-
-static const struct asm_psr psrs[] =
-{
- {"CPSR", TRUE, PSR_c | PSR_f},
- {"CPSR_all", TRUE, PSR_c | PSR_f},
- {"SPSR", FALSE, PSR_c | PSR_f},
- {"SPSR_all", FALSE, PSR_c | PSR_f},
- {"CPSR_flg", TRUE, PSR_f},
- {"CPSR_f", TRUE, PSR_f},
- {"SPSR_flg", FALSE, PSR_f},
- {"SPSR_f", FALSE, PSR_f},
- {"CPSR_c", TRUE, PSR_c},
- {"CPSR_ctl", TRUE, PSR_c},
- {"SPSR_c", FALSE, PSR_c},
- {"SPSR_ctl", FALSE, PSR_c},
- {"CPSR_x", TRUE, PSR_x},
- {"CPSR_s", TRUE, PSR_s},
- {"SPSR_x", FALSE, PSR_x},
- {"SPSR_s", FALSE, PSR_s},
- /* Combinations of flags. */
- {"CPSR_fs", TRUE, PSR_f | PSR_s},
- {"CPSR_fx", TRUE, PSR_f | PSR_x},
- {"CPSR_fc", TRUE, PSR_f | PSR_c},
- {"CPSR_sf", TRUE, PSR_s | PSR_f},
- {"CPSR_sx", TRUE, PSR_s | PSR_x},
- {"CPSR_sc", TRUE, PSR_s | PSR_c},
- {"CPSR_xf", TRUE, PSR_x | PSR_f},
- {"CPSR_xs", TRUE, PSR_x | PSR_s},
- {"CPSR_xc", TRUE, PSR_x | PSR_c},
- {"CPSR_cf", TRUE, PSR_c | PSR_f},
- {"CPSR_cs", TRUE, PSR_c | PSR_s},
- {"CPSR_cx", TRUE, PSR_c | PSR_x},
- {"CPSR_fsx", TRUE, PSR_f | PSR_s | PSR_x},
- {"CPSR_fsc", TRUE, PSR_f | PSR_s | PSR_c},
- {"CPSR_fxs", TRUE, PSR_f | PSR_x | PSR_s},
- {"CPSR_fxc", TRUE, PSR_f | PSR_x | PSR_c},
- {"CPSR_fcs", TRUE, PSR_f | PSR_c | PSR_s},
- {"CPSR_fcx", TRUE, PSR_f | PSR_c | PSR_x},
- {"CPSR_sfx", TRUE, PSR_s | PSR_f | PSR_x},
- {"CPSR_sfc", TRUE, PSR_s | PSR_f | PSR_c},
- {"CPSR_sxf", TRUE, PSR_s | PSR_x | PSR_f},
- {"CPSR_sxc", TRUE, PSR_s | PSR_x | PSR_c},
- {"CPSR_scf", TRUE, PSR_s | PSR_c | PSR_f},
- {"CPSR_scx", TRUE, PSR_s | PSR_c | PSR_x},
- {"CPSR_xfs", TRUE, PSR_x | PSR_f | PSR_s},
- {"CPSR_xfc", TRUE, PSR_x | PSR_f | PSR_c},
- {"CPSR_xsf", TRUE, PSR_x | PSR_s | PSR_f},
- {"CPSR_xsc", TRUE, PSR_x | PSR_s | PSR_c},
- {"CPSR_xcf", TRUE, PSR_x | PSR_c | PSR_f},
- {"CPSR_xcs", TRUE, PSR_x | PSR_c | PSR_s},
- {"CPSR_cfs", TRUE, PSR_c | PSR_f | PSR_s},
- {"CPSR_cfx", TRUE, PSR_c | PSR_f | PSR_x},
- {"CPSR_csf", TRUE, PSR_c | PSR_s | PSR_f},
- {"CPSR_csx", TRUE, PSR_c | PSR_s | PSR_x},
- {"CPSR_cxf", TRUE, PSR_c | PSR_x | PSR_f},
- {"CPSR_cxs", TRUE, PSR_c | PSR_x | PSR_s},
- {"CPSR_fsxc", TRUE, PSR_f | PSR_s | PSR_x | PSR_c},
- {"CPSR_fscx", TRUE, PSR_f | PSR_s | PSR_c | PSR_x},
- {"CPSR_fxsc", TRUE, PSR_f | PSR_x | PSR_s | PSR_c},
- {"CPSR_fxcs", TRUE, PSR_f | PSR_x | PSR_c | PSR_s},
- {"CPSR_fcsx", TRUE, PSR_f | PSR_c | PSR_s | PSR_x},
- {"CPSR_fcxs", TRUE, PSR_f | PSR_c | PSR_x | PSR_s},
- {"CPSR_sfxc", TRUE, PSR_s | PSR_f | PSR_x | PSR_c},
- {"CPSR_sfcx", TRUE, PSR_s | PSR_f | PSR_c | PSR_x},
- {"CPSR_sxfc", TRUE, PSR_s | PSR_x | PSR_f | PSR_c},
- {"CPSR_sxcf", TRUE, PSR_s | PSR_x | PSR_c | PSR_f},
- {"CPSR_scfx", TRUE, PSR_s | PSR_c | PSR_f | PSR_x},
- {"CPSR_scxf", TRUE, PSR_s | PSR_c | PSR_x | PSR_f},
- {"CPSR_xfsc", TRUE, PSR_x | PSR_f | PSR_s | PSR_c},
- {"CPSR_xfcs", TRUE, PSR_x | PSR_f | PSR_c | PSR_s},
- {"CPSR_xsfc", TRUE, PSR_x | PSR_s | PSR_f | PSR_c},
- {"CPSR_xscf", TRUE, PSR_x | PSR_s | PSR_c | PSR_f},
- {"CPSR_xcfs", TRUE, PSR_x | PSR_c | PSR_f | PSR_s},
- {"CPSR_xcsf", TRUE, PSR_x | PSR_c | PSR_s | PSR_f},
- {"CPSR_cfsx", TRUE, PSR_c | PSR_f | PSR_s | PSR_x},
- {"CPSR_cfxs", TRUE, PSR_c | PSR_f | PSR_x | PSR_s},
- {"CPSR_csfx", TRUE, PSR_c | PSR_s | PSR_f | PSR_x},
- {"CPSR_csxf", TRUE, PSR_c | PSR_s | PSR_x | PSR_f},
- {"CPSR_cxfs", TRUE, PSR_c | PSR_x | PSR_f | PSR_s},
- {"CPSR_cxsf", TRUE, PSR_c | PSR_x | PSR_s | PSR_f},
- {"SPSR_fs", FALSE, PSR_f | PSR_s},
- {"SPSR_fx", FALSE, PSR_f | PSR_x},
- {"SPSR_fc", FALSE, PSR_f | PSR_c},
- {"SPSR_sf", FALSE, PSR_s | PSR_f},
- {"SPSR_sx", FALSE, PSR_s | PSR_x},
- {"SPSR_sc", FALSE, PSR_s | PSR_c},
- {"SPSR_xf", FALSE, PSR_x | PSR_f},
- {"SPSR_xs", FALSE, PSR_x | PSR_s},
- {"SPSR_xc", FALSE, PSR_x | PSR_c},
- {"SPSR_cf", FALSE, PSR_c | PSR_f},
- {"SPSR_cs", FALSE, PSR_c | PSR_s},
- {"SPSR_cx", FALSE, PSR_c | PSR_x},
- {"SPSR_fsx", FALSE, PSR_f | PSR_s | PSR_x},
- {"SPSR_fsc", FALSE, PSR_f | PSR_s | PSR_c},
- {"SPSR_fxs", FALSE, PSR_f | PSR_x | PSR_s},
- {"SPSR_fxc", FALSE, PSR_f | PSR_x | PSR_c},
- {"SPSR_fcs", FALSE, PSR_f | PSR_c | PSR_s},
- {"SPSR_fcx", FALSE, PSR_f | PSR_c | PSR_x},
- {"SPSR_sfx", FALSE, PSR_s | PSR_f | PSR_x},
- {"SPSR_sfc", FALSE, PSR_s | PSR_f | PSR_c},
- {"SPSR_sxf", FALSE, PSR_s | PSR_x | PSR_f},
- {"SPSR_sxc", FALSE, PSR_s | PSR_x | PSR_c},
- {"SPSR_scf", FALSE, PSR_s | PSR_c | PSR_f},
- {"SPSR_scx", FALSE, PSR_s | PSR_c | PSR_x},
- {"SPSR_xfs", FALSE, PSR_x | PSR_f | PSR_s},
- {"SPSR_xfc", FALSE, PSR_x | PSR_f | PSR_c},
- {"SPSR_xsf", FALSE, PSR_x | PSR_s | PSR_f},
- {"SPSR_xsc", FALSE, PSR_x | PSR_s | PSR_c},
- {"SPSR_xcf", FALSE, PSR_x | PSR_c | PSR_f},
- {"SPSR_xcs", FALSE, PSR_x | PSR_c | PSR_s},
- {"SPSR_cfs", FALSE, PSR_c | PSR_f | PSR_s},
- {"SPSR_cfx", FALSE, PSR_c | PSR_f | PSR_x},
- {"SPSR_csf", FALSE, PSR_c | PSR_s | PSR_f},
- {"SPSR_csx", FALSE, PSR_c | PSR_s | PSR_x},
- {"SPSR_cxf", FALSE, PSR_c | PSR_x | PSR_f},
- {"SPSR_cxs", FALSE, PSR_c | PSR_x | PSR_s},
- {"SPSR_fsxc", FALSE, PSR_f | PSR_s | PSR_x | PSR_c},
- {"SPSR_fscx", FALSE, PSR_f | PSR_s | PSR_c | PSR_x},
- {"SPSR_fxsc", FALSE, PSR_f | PSR_x | PSR_s | PSR_c},
- {"SPSR_fxcs", FALSE, PSR_f | PSR_x | PSR_c | PSR_s},
- {"SPSR_fcsx", FALSE, PSR_f | PSR_c | PSR_s | PSR_x},
- {"SPSR_fcxs", FALSE, PSR_f | PSR_c | PSR_x | PSR_s},
- {"SPSR_sfxc", FALSE, PSR_s | PSR_f | PSR_x | PSR_c},
- {"SPSR_sfcx", FALSE, PSR_s | PSR_f | PSR_c | PSR_x},
- {"SPSR_sxfc", FALSE, PSR_s | PSR_x | PSR_f | PSR_c},
- {"SPSR_sxcf", FALSE, PSR_s | PSR_x | PSR_c | PSR_f},
- {"SPSR_scfx", FALSE, PSR_s | PSR_c | PSR_f | PSR_x},
- {"SPSR_scxf", FALSE, PSR_s | PSR_c | PSR_x | PSR_f},
- {"SPSR_xfsc", FALSE, PSR_x | PSR_f | PSR_s | PSR_c},
- {"SPSR_xfcs", FALSE, PSR_x | PSR_f | PSR_c | PSR_s},
- {"SPSR_xsfc", FALSE, PSR_x | PSR_s | PSR_f | PSR_c},
- {"SPSR_xscf", FALSE, PSR_x | PSR_s | PSR_c | PSR_f},
- {"SPSR_xcfs", FALSE, PSR_x | PSR_c | PSR_f | PSR_s},
- {"SPSR_xcsf", FALSE, PSR_x | PSR_c | PSR_s | PSR_f},
- {"SPSR_cfsx", FALSE, PSR_c | PSR_f | PSR_s | PSR_x},
- {"SPSR_cfxs", FALSE, PSR_c | PSR_f | PSR_x | PSR_s},
- {"SPSR_csfx", FALSE, PSR_c | PSR_s | PSR_f | PSR_x},
- {"SPSR_csxf", FALSE, PSR_c | PSR_s | PSR_x | PSR_f},
- {"SPSR_cxfs", FALSE, PSR_c | PSR_x | PSR_f | PSR_s},
- {"SPSR_cxsf", FALSE, PSR_c | PSR_x | PSR_s | PSR_f},
-};
+/* The individual PSR flag bits. */
+#define PSR_c (1 << 16)
+#define PSR_x (1 << 17)
+#define PSR_s (1 << 18)
+#define PSR_f (1 << 19)
-enum wreg_type
- {
- IWMMXT_REG_WR = 0,
- IWMMXT_REG_WC = 1,
- IWMMXT_REG_WR_OR_WC = 2,
- IWMMXT_REG_WCG
- };
-
-enum iwmmxt_insn_type
-{
- check_rd,
- check_wr,
- check_wrwr,
- check_wrwrwr,
- check_wrwrwcg,
- check_tbcst,
- check_tmovmsk,
- check_tmia,
- check_tmcrr,
- check_tmrrc,
- check_tmcr,
- check_tmrc,
- check_tinsr,
- check_textrc,
- check_waligni,
- check_textrm,
- check_wshufh
-};
-
-enum vfp_dp_reg_pos
+struct reloc_entry
{
- VFP_REG_Dd, VFP_REG_Dm, VFP_REG_Dn
+ char *name;
+ bfd_reloc_code_real_type reloc;
};
enum vfp_sp_reg_pos
VFP_LDSTMIA, VFP_LDSTMDB, VFP_LDSTMIAX, VFP_LDSTMDBX
};
-/* VFP system registers. */
-struct vfp_reg
-{
- const char *name;
- unsigned long regno;
-};
-
-static const struct vfp_reg vfp_regs[] =
+/* ARM register categories. This includes coprocessor numbers and various
+ architecture extensions' registers. */
+enum arm_reg_type
{
- {"fpsid", 0x00000000},
- {"FPSID", 0x00000000},
- {"fpscr", 0x00010000},
- {"FPSCR", 0x00010000},
- {"fpexc", 0x00080000},
- {"FPEXC", 0x00080000}
+ REG_TYPE_RN,
+ REG_TYPE_CP,
+ REG_TYPE_CN,
+ REG_TYPE_FN,
+ REG_TYPE_VFS,
+ REG_TYPE_VFD,
+ REG_TYPE_VFC,
+ REG_TYPE_MVF,
+ REG_TYPE_MVD,
+ REG_TYPE_MVFX,
+ REG_TYPE_MVDX,
+ REG_TYPE_MVAX,
+ REG_TYPE_DSPSC,
+ REG_TYPE_MMXWR,
+ REG_TYPE_MMXWC,
+ REG_TYPE_MMXWCG,
+ REG_TYPE_XSCALE,
};
/* Structure for a hash table entry for a register. */
struct reg_entry
{
- const char * name;
- int number;
- bfd_boolean builtin;
-};
-
-/* Some well known registers that we refer to directly elsewhere. */
-#define REG_SP 13
-#define REG_LR 14
-#define REG_PC 15
-
-#define wr_register(reg) ((reg ^ WR_PREFIX) >= 0 && (reg ^ WR_PREFIX) <= 15)
-#define wc_register(reg) ((reg ^ WC_PREFIX) >= 0 && (reg ^ WC_PREFIX) <= 15)
-#define wcg_register(reg) ((reg ^ WC_PREFIX) >= 8 && (reg ^ WC_PREFIX) <= 11)
-
-/* These are the standard names. Users can add aliases with .req.
- and delete them with .unreq. */
-
-/* Integer Register Numbers. */
-static const struct reg_entry rn_table[] =
-{
- {"r0", 0, TRUE}, {"r1", 1, TRUE}, {"r2", 2, TRUE}, {"r3", 3, TRUE},
- {"r4", 4, TRUE}, {"r5", 5, TRUE}, {"r6", 6, TRUE}, {"r7", 7, TRUE},
- {"r8", 8, TRUE}, {"r9", 9, TRUE}, {"r10", 10, TRUE}, {"r11", 11, TRUE},
- {"r12", 12, TRUE}, {"r13", REG_SP, TRUE}, {"r14", REG_LR, TRUE}, {"r15", REG_PC, TRUE},
- /* ATPCS Synonyms. */
- {"a1", 0, TRUE}, {"a2", 1, TRUE}, {"a3", 2, TRUE}, {"a4", 3, TRUE},
- {"v1", 4, TRUE}, {"v2", 5, TRUE}, {"v3", 6, TRUE}, {"v4", 7, TRUE},
- {"v5", 8, TRUE}, {"v6", 9, TRUE}, {"v7", 10, TRUE}, {"v8", 11, TRUE},
- /* Well-known aliases. */
- {"wr", 7, TRUE}, {"sb", 9, TRUE}, {"sl", 10, TRUE}, {"fp", 11, TRUE},
- {"ip", 12, TRUE}, {"sp", REG_SP, TRUE}, {"lr", REG_LR, TRUE}, {"pc", REG_PC, TRUE},
- {NULL, 0, TRUE}
-};
-
-#define WR_PREFIX 0x200
-#define WC_PREFIX 0x400
-
-static const struct reg_entry iwmmxt_table[] =
-{
- /* Intel Wireless MMX technology register names. */
- { "wr0", 0x0 | WR_PREFIX, TRUE}, {"wr1", 0x1 | WR_PREFIX, TRUE},
- { "wr2", 0x2 | WR_PREFIX, TRUE}, {"wr3", 0x3 | WR_PREFIX, TRUE},
- { "wr4", 0x4 | WR_PREFIX, TRUE}, {"wr5", 0x5 | WR_PREFIX, TRUE},
- { "wr6", 0x6 | WR_PREFIX, TRUE}, {"wr7", 0x7 | WR_PREFIX, TRUE},
- { "wr8", 0x8 | WR_PREFIX, TRUE}, {"wr9", 0x9 | WR_PREFIX, TRUE},
- { "wr10", 0xa | WR_PREFIX, TRUE}, {"wr11", 0xb | WR_PREFIX, TRUE},
- { "wr12", 0xc | WR_PREFIX, TRUE}, {"wr13", 0xd | WR_PREFIX, TRUE},
- { "wr14", 0xe | WR_PREFIX, TRUE}, {"wr15", 0xf | WR_PREFIX, TRUE},
- { "wcid", 0x0 | WC_PREFIX, TRUE}, {"wcon", 0x1 | WC_PREFIX, TRUE},
- {"wcssf", 0x2 | WC_PREFIX, TRUE}, {"wcasf", 0x3 | WC_PREFIX, TRUE},
- {"wcgr0", 0x8 | WC_PREFIX, TRUE}, {"wcgr1", 0x9 | WC_PREFIX, TRUE},
- {"wcgr2", 0xa | WC_PREFIX, TRUE}, {"wcgr3", 0xb | WC_PREFIX, TRUE},
-
- { "wR0", 0x0 | WR_PREFIX, TRUE}, {"wR1", 0x1 | WR_PREFIX, TRUE},
- { "wR2", 0x2 | WR_PREFIX, TRUE}, {"wR3", 0x3 | WR_PREFIX, TRUE},
- { "wR4", 0x4 | WR_PREFIX, TRUE}, {"wR5", 0x5 | WR_PREFIX, TRUE},
- { "wR6", 0x6 | WR_PREFIX, TRUE}, {"wR7", 0x7 | WR_PREFIX, TRUE},
- { "wR8", 0x8 | WR_PREFIX, TRUE}, {"wR9", 0x9 | WR_PREFIX, TRUE},
- { "wR10", 0xa | WR_PREFIX, TRUE}, {"wR11", 0xb | WR_PREFIX, TRUE},
- { "wR12", 0xc | WR_PREFIX, TRUE}, {"wR13", 0xd | WR_PREFIX, TRUE},
- { "wR14", 0xe | WR_PREFIX, TRUE}, {"wR15", 0xf | WR_PREFIX, TRUE},
- { "wCID", 0x0 | WC_PREFIX, TRUE}, {"wCon", 0x1 | WC_PREFIX, TRUE},
- {"wCSSF", 0x2 | WC_PREFIX, TRUE}, {"wCASF", 0x3 | WC_PREFIX, TRUE},
- {"wCGR0", 0x8 | WC_PREFIX, TRUE}, {"wCGR1", 0x9 | WC_PREFIX, TRUE},
- {"wCGR2", 0xa | WC_PREFIX, TRUE}, {"wCGR3", 0xb | WC_PREFIX, TRUE},
- {NULL, 0, TRUE}
-};
-
-/* Co-processor Numbers. */
-static const struct reg_entry cp_table[] =
-{
- {"p0", 0, TRUE}, {"p1", 1, TRUE}, {"p2", 2, TRUE}, {"p3", 3, TRUE},
- {"p4", 4, TRUE}, {"p5", 5, TRUE}, {"p6", 6, TRUE}, {"p7", 7, TRUE},
- {"p8", 8, TRUE}, {"p9", 9, TRUE}, {"p10", 10, TRUE}, {"p11", 11, TRUE},
- {"p12", 12, TRUE}, {"p13", 13, TRUE}, {"p14", 14, TRUE}, {"p15", 15, TRUE},
- {NULL, 0, TRUE}
-};
-
-/* Co-processor Register Numbers. */
-static const struct reg_entry cn_table[] =
-{
- {"c0", 0, TRUE}, {"c1", 1, TRUE}, {"c2", 2, TRUE}, {"c3", 3, TRUE},
- {"c4", 4, TRUE}, {"c5", 5, TRUE}, {"c6", 6, TRUE}, {"c7", 7, TRUE},
- {"c8", 8, TRUE}, {"c9", 9, TRUE}, {"c10", 10, TRUE}, {"c11", 11, TRUE},
- {"c12", 12, TRUE}, {"c13", 13, TRUE}, {"c14", 14, TRUE}, {"c15", 15, TRUE},
- /* Not really valid, but kept for back-wards compatibility. */
- {"cr0", 0, TRUE}, {"cr1", 1, TRUE}, {"cr2", 2, TRUE}, {"cr3", 3, TRUE},
- {"cr4", 4, TRUE}, {"cr5", 5, TRUE}, {"cr6", 6, TRUE}, {"cr7", 7, TRUE},
- {"cr8", 8, TRUE}, {"cr9", 9, TRUE}, {"cr10", 10, TRUE}, {"cr11", 11, TRUE},
- {"cr12", 12, TRUE}, {"cr13", 13, TRUE}, {"cr14", 14, TRUE}, {"cr15", 15, TRUE},
- {NULL, 0, TRUE}
-};
-
-/* FPA Registers. */
-static const struct reg_entry fn_table[] =
-{
- {"f0", 0, TRUE}, {"f1", 1, TRUE}, {"f2", 2, TRUE}, {"f3", 3, TRUE},
- {"f4", 4, TRUE}, {"f5", 5, TRUE}, {"f6", 6, TRUE}, {"f7", 7, TRUE},
- {NULL, 0, TRUE}
-};
-
-/* VFP SP Registers. */
-static const struct reg_entry sn_table[] =
-{
- {"s0", 0, TRUE}, {"s1", 1, TRUE}, {"s2", 2, TRUE}, {"s3", 3, TRUE},
- {"s4", 4, TRUE}, {"s5", 5, TRUE}, {"s6", 6, TRUE}, {"s7", 7, TRUE},
- {"s8", 8, TRUE}, {"s9", 9, TRUE}, {"s10", 10, TRUE}, {"s11", 11, TRUE},
- {"s12", 12, TRUE}, {"s13", 13, TRUE}, {"s14", 14, TRUE}, {"s15", 15, TRUE},
- {"s16", 16, TRUE}, {"s17", 17, TRUE}, {"s18", 18, TRUE}, {"s19", 19, TRUE},
- {"s20", 20, TRUE}, {"s21", 21, TRUE}, {"s22", 22, TRUE}, {"s23", 23, TRUE},
- {"s24", 24, TRUE}, {"s25", 25, TRUE}, {"s26", 26, TRUE}, {"s27", 27, TRUE},
- {"s28", 28, TRUE}, {"s29", 29, TRUE}, {"s30", 30, TRUE}, {"s31", 31, TRUE},
- {NULL, 0, TRUE}
-};
-
-/* VFP DP Registers. */
-static const struct reg_entry dn_table[] =
-{
- {"d0", 0, TRUE}, {"d1", 1, TRUE}, {"d2", 2, TRUE}, {"d3", 3, TRUE},
- {"d4", 4, TRUE}, {"d5", 5, TRUE}, {"d6", 6, TRUE}, {"d7", 7, TRUE},
- {"d8", 8, TRUE}, {"d9", 9, TRUE}, {"d10", 10, TRUE}, {"d11", 11, TRUE},
- {"d12", 12, TRUE}, {"d13", 13, TRUE}, {"d14", 14, TRUE}, {"d15", 15, TRUE},
- {NULL, 0, TRUE}
-};
-
-/* Maverick DSP coprocessor registers. */
-static const struct reg_entry mav_mvf_table[] =
-{
- {"mvf0", 0, TRUE}, {"mvf1", 1, TRUE}, {"mvf2", 2, TRUE}, {"mvf3", 3, TRUE},
- {"mvf4", 4, TRUE}, {"mvf5", 5, TRUE}, {"mvf6", 6, TRUE}, {"mvf7", 7, TRUE},
- {"mvf8", 8, TRUE}, {"mvf9", 9, TRUE}, {"mvf10", 10, TRUE}, {"mvf11", 11, TRUE},
- {"mvf12", 12, TRUE}, {"mvf13", 13, TRUE}, {"mvf14", 14, TRUE}, {"mvf15", 15, TRUE},
- {NULL, 0, TRUE}
+ const char *name;
+ unsigned char number;
+ unsigned char type;
+ unsigned char builtin;
};
-static const struct reg_entry mav_mvd_table[] =
-{
- {"mvd0", 0, TRUE}, {"mvd1", 1, TRUE}, {"mvd2", 2, TRUE}, {"mvd3", 3, TRUE},
- {"mvd4", 4, TRUE}, {"mvd5", 5, TRUE}, {"mvd6", 6, TRUE}, {"mvd7", 7, TRUE},
- {"mvd8", 8, TRUE}, {"mvd9", 9, TRUE}, {"mvd10", 10, TRUE}, {"mvd11", 11, TRUE},
- {"mvd12", 12, TRUE}, {"mvd13", 13, TRUE}, {"mvd14", 14, TRUE}, {"mvd15", 15, TRUE},
- {NULL, 0, TRUE}
-};
-
-static const struct reg_entry mav_mvfx_table[] =
-{
- {"mvfx0", 0, TRUE}, {"mvfx1", 1, TRUE}, {"mvfx2", 2, TRUE}, {"mvfx3", 3, TRUE},
- {"mvfx4", 4, TRUE}, {"mvfx5", 5, TRUE}, {"mvfx6", 6, TRUE}, {"mvfx7", 7, TRUE},
- {"mvfx8", 8, TRUE}, {"mvfx9", 9, TRUE}, {"mvfx10", 10, TRUE}, {"mvfx11", 11, TRUE},
- {"mvfx12", 12, TRUE}, {"mvfx13", 13, TRUE}, {"mvfx14", 14, TRUE}, {"mvfx15", 15, TRUE},
- {NULL, 0, TRUE}
-};
-
-static const struct reg_entry mav_mvdx_table[] =
-{
- {"mvdx0", 0, TRUE}, {"mvdx1", 1, TRUE}, {"mvdx2", 2, TRUE}, {"mvdx3", 3, TRUE},
- {"mvdx4", 4, TRUE}, {"mvdx5", 5, TRUE}, {"mvdx6", 6, TRUE}, {"mvdx7", 7, TRUE},
- {"mvdx8", 8, TRUE}, {"mvdx9", 9, TRUE}, {"mvdx10", 10, TRUE}, {"mvdx11", 11, TRUE},
- {"mvdx12", 12, TRUE}, {"mvdx13", 13, TRUE}, {"mvdx14", 14, TRUE}, {"mvdx15", 15, TRUE},
- {NULL, 0, TRUE}
-};
-
-static const struct reg_entry mav_mvax_table[] =
-{
- {"mvax0", 0, TRUE}, {"mvax1", 1, TRUE}, {"mvax2", 2, TRUE}, {"mvax3", 3, TRUE},
- {NULL, 0, TRUE}
-};
-
-static const struct reg_entry mav_dspsc_table[] =
-{
- {"dspsc", 0, TRUE},
- {NULL, 0, TRUE}
-};
-
-struct reg_map
-{
- const struct reg_entry * names;
- int max_regno;
- struct hash_control * htab;
- const char * expected;
+/* Diagnostics used when we don't get a register of the expected type. */
+const char *const reg_expected_msgs[] =
+{
+ N_("ARM register expected"),
+ N_("bad or missing co-processor number"),
+ N_("co-processor register expected"),
+ N_("FPA register expected"),
+ N_("VFP single precision register expected"),
+ N_("VFP double precision register expected"),
+ N_("VFP system register expected"),
+ N_("Maverick MVF register expected"),
+ N_("Maverick MVD register expected"),
+ N_("Maverick MVFX register expected"),
+ N_("Maverick MVDX register expected"),
+ N_("Maverick MVAX register expected"),
+ N_("Maverick DSPSC register expected"),
+ N_("iWMMXt data register expected"),
+ N_("iWMMXt control register expected"),
+ N_("iWMMXt scalar register expected"),
+ N_("XScale accumulator register expected"),
};
-struct reg_map all_reg_maps[] =
-{
- {rn_table, 15, NULL, N_("ARM register expected")},
- {cp_table, 15, NULL, N_("bad or missing co-processor number")},
- {cn_table, 15, NULL, N_("co-processor register expected")},
- {fn_table, 7, NULL, N_("FPA register expected")},
- {sn_table, 31, NULL, N_("VFP single precision register expected")},
- {dn_table, 15, NULL, N_("VFP double precision register expected")},
- {mav_mvf_table, 15, NULL, N_("Maverick MVF register expected")},
- {mav_mvd_table, 15, NULL, N_("Maverick MVD register expected")},
- {mav_mvfx_table, 15, NULL, N_("Maverick MVFX register expected")},
- {mav_mvdx_table, 15, NULL, N_("Maverick MVDX register expected")},
- {mav_mvax_table, 3, NULL, N_("Maverick MVAX register expected")},
- {mav_dspsc_table, 0, NULL, N_("Maverick DSPSC register expected")},
- {iwmmxt_table, 23, NULL, N_("Intel Wireless MMX technology register expected")},
-};
-
-/* Enumeration matching entries in table above. */
-enum arm_reg_type
-{
- REG_TYPE_RN = 0,
-#define REG_TYPE_FIRST REG_TYPE_RN
- REG_TYPE_CP = 1,
- REG_TYPE_CN = 2,
- REG_TYPE_FN = 3,
- REG_TYPE_SN = 4,
- REG_TYPE_DN = 5,
- REG_TYPE_MVF = 6,
- REG_TYPE_MVD = 7,
- REG_TYPE_MVFX = 8,
- REG_TYPE_MVDX = 9,
- REG_TYPE_MVAX = 10,
- REG_TYPE_DSPSC = 11,
- REG_TYPE_IWMMXT = 12,
-
- REG_TYPE_MAX = 13
-};
+/* Some well known registers that we refer to directly elsewhere. */
+#define REG_SP 13
+#define REG_LR 14
+#define REG_PC 15
/* ARM instructions take 4bytes in the object file, Thumb instructions
take 2: */
-#define INSN_SIZE 4
-
-/* "INSN<cond> X,Y" where X:bit12, Y:bit16. */
-#define MAV_MODE1 0x100c
-
-/* "INSN<cond> X,Y" where X:bit16, Y:bit12. */
-#define MAV_MODE2 0x0c10
-
-/* "INSN<cond> X,Y" where X:bit12, Y:bit16. */
-#define MAV_MODE3 0x100c
-
-/* "INSN<cond> X,Y,Z" where X:16, Y:0, Z:12. */
-#define MAV_MODE4 0x0c0010
-
-/* "INSN<cond> X,Y,Z" where X:12, Y:16, Z:0. */
-#define MAV_MODE5 0x00100c
-
-/* "INSN<cond> W,X,Y,Z" where W:5, X:12, Y:16, Z:0. */
-#define MAV_MODE6 0x00100c05
+#define INSN_SIZE 4
struct asm_opcode
{
/* Basic string to match. */
- const char * template;
+ const char *template;
+
+ /* Parameters to instruction. */
+ unsigned char operands[8];
+
+ /* Conditional tag - see opcode_lookup. */
+ unsigned int tag : 4;
/* Basic instruction code. */
- unsigned long value;
+ unsigned int avalue : 28;
- /* Offset into the template where the condition code (if any) will be.
- If zero, then the instruction is never conditional. */
- unsigned cond_offset;
+ /* Thumb-format instruction code. */
+ unsigned int tvalue;
/* Which architecture variant provides this instruction. */
- unsigned long variant;
+ unsigned long avariant;
+ unsigned long tvariant;
+
+ /* Function to call to encode instruction in ARM format. */
+ void (* aencode) (void);
- /* Function to call to parse args. */
- void (* parms) (char *);
+ /* Function to call to encode instruction in Thumb format. */
+ void (* tencode) (void);
};
/* Defines for various bits that we will want to toggle. */
#define INST_IMMEDIATE 0x02000000
#define OFFSET_REG 0x02000000
-#define HWOFFSET_IMM 0x00400000
+#define HWOFFSET_IMM 0x00400000
#define SHIFT_BY_REG 0x00000010
#define PRE_INDEX 0x01000000
#define INDEX_UP 0x00800000
#define T_OPCODE_ASR_R 0x4100
#define T_OPCODE_LSL_R 0x4080
-#define T_OPCODE_LSR_R 0x40c0
+#define T_OPCODE_LSR_R 0x40c0
+#define T_OPCODE_ROR_R 0x41c0
#define T_OPCODE_ASR_I 0x1000
#define T_OPCODE_LSL_I 0x0000
#define T_OPCODE_LSR_I 0x0800
#define T_OPCODE_BRANCH 0xe7fe
#define THUMB_SIZE 2 /* Size of thumb instruction. */
-#define THUMB_REG_LO 0x1
-#define THUMB_REG_HI 0x2
-#define THUMB_REG_ANY 0x3
-
-#define THUMB_H1 0x0080
-#define THUMB_H2 0x0040
-
-#define THUMB_ASR 0
-#define THUMB_LSL 1
-#define THUMB_LSR 2
-
-#define THUMB_MOVE 0
-#define THUMB_COMPARE 1
-#define THUMB_CPY 2
-
-#define THUMB_LOAD 0
-#define THUMB_STORE 1
-
#define THUMB_PP_PC_LR 0x0100
-
-/* These three are used for immediate shifts, do not alter. */
-#define THUMB_WORD 2
-#define THUMB_HALFWORD 1
-#define THUMB_BYTE 0
-
-struct thumb_opcode
-{
- /* Basic string to match. */
- const char * template;
-
- /* Basic instruction code. */
- unsigned long value;
-
- int size;
-
- /* Which CPU variants this exists for. */
- unsigned long variant;
-
- /* Function to call to parse args. */
- void (* parms) (char *);
-};
-
-#define BAD_ARGS _("bad arguments to instruction")
-#define BAD_PC _("r15 not allowed here")
-#define BAD_COND _("instruction is not conditional")
-#define ERR_NO_ACCUM _("acc0 expected")
-
-static struct hash_control * arm_ops_hsh = NULL;
-static struct hash_control * arm_tops_hsh = NULL;
-static struct hash_control * arm_cond_hsh = NULL;
-static struct hash_control * arm_shift_hsh = NULL;
-static struct hash_control * arm_psr_hsh = NULL;
+#define THUMB_LOAD_BIT 0x0800
+
+#define BAD_ARGS _("bad arguments to instruction")
+#define BAD_PC _("r15 not allowed here")
+#define BAD_COND _("instruction cannot be conditional")
+#define BAD_OVERLAP _("registers may not be the same")
+#define BAD_HIREG _("lo register required")
+#define BAD_THUMB32 _("instruction not supported in Thumb16 mode")
+
+static struct hash_control *arm_ops_hsh;
+static struct hash_control *arm_cond_hsh;
+static struct hash_control *arm_shift_hsh;
+static struct hash_control *arm_psr_hsh;
+static struct hash_control *arm_reg_hsh;
+static struct hash_control *arm_reloc_hsh;
/* Stuff needed to resolve the label ambiguity
As:
may differ from:
...
label:
- <insn>
+ <insn>
*/
symbolS * last_label_seen;
static int label_is_thumb_function_name = FALSE;
\f
-/* Literal Pool stuff. */
-
-#define MAX_LITERAL_POOL_SIZE 1024
-
/* Literal pool structure. Held on a per-section
and per-sub-section basis. */
+#define MAX_LITERAL_POOL_SIZE 1024
typedef struct literal_pool
{
- expressionS literals [MAX_LITERAL_POOL_SIZE];
- unsigned int next_free_entry;
- unsigned int id;
- symbolS * symbol;
- segT section;
- subsegT sub_section;
+ expressionS literals [MAX_LITERAL_POOL_SIZE];
+ unsigned int next_free_entry;
+ unsigned int id;
+ symbolS * symbol;
+ segT section;
+ subsegT sub_section;
struct literal_pool * next;
} literal_pool;
/* Pointer to a linked list of literal pools. */
literal_pool * list_of_pools = NULL;
+\f
+/* Pure syntax. */
-static literal_pool *
-find_literal_pool (void)
-{
- literal_pool * pool;
+/* This array holds the chars that always start a comment. If the
+ pre-processor is disabled, these aren't very useful. */
+const char comment_chars[] = "@";
- for (pool = list_of_pools; pool != NULL; pool = pool->next)
- {
- if (pool->section == now_seg
- && pool->sub_section == now_subseg)
- break;
- }
+/* This array holds the chars that only start a comment at the beginning of
+ a line. If the line seems to have the form '# 123 filename'
+ .line and .file directives will appear in the pre-processed output. */
+/* Note that input_file.c hand checks for '#' at the beginning of the
+ first line of the input file. This is because the compiler outputs
+ #NO_APP at the beginning of its output. */
+/* Also note that comments like this one will always work. */
+const char line_comment_chars[] = "#";
- return pool;
-}
+const char line_separator_chars[] = ";";
-static literal_pool *
-find_or_make_literal_pool (void)
-{
- /* Next literal pool ID number. */
- static unsigned int latest_pool_num = 1;
- literal_pool * pool;
+/* Chars that can be used to separate mant
+ from exp in floating point numbers. */
+const char EXP_CHARS[] = "eE";
- pool = find_literal_pool ();
+/* Chars that mean this number is a floating point constant. */
+/* As in 0f12.456 */
+/* or 0d1.2345e12 */
- if (pool == NULL)
- {
- /* Create a new pool. */
- pool = xmalloc (sizeof (* pool));
- if (! pool)
- return NULL;
+const char FLT_CHARS[] = "rRsSfFdDxXeEpP";
- pool->next_free_entry = 0;
- pool->section = now_seg;
- pool->sub_section = now_subseg;
- pool->next = list_of_pools;
- pool->symbol = NULL;
+/* Prefix characters that indicate the start of an immediate
+ value. */
+#define is_immediate_prefix(C) ((C) == '#' || (C) == '$')
- /* Add it to the list. */
- list_of_pools = pool;
+/* Separator character handling. */
+
+#define skip_whitespace(str) do { if (*(str) == ' ') ++(str); } while (0)
+
+static inline int
+skip_past_char (char ** str, char c)
+{
+ if (**str == c)
+ {
+ (*str)++;
+ return SUCCESS;
}
+ else
+ return FAIL;
+}
+#define skip_past_comma(str) skip_past_char (str, ',')
- /* New pools, and emptied pools, will have a NULL symbol. */
- if (pool->symbol == NULL)
+/* Arithmetic expressions (possibly involving symbols). */
+
+/* Return TRUE if anything in the expression is a bignum. */
+
+static int
+walk_no_bignums (symbolS * sp)
+{
+ if (symbol_get_value_expression (sp)->X_op == O_big)
+ return 1;
+
+ if (symbol_get_value_expression (sp)->X_add_symbol)
{
- pool->symbol = symbol_create (FAKE_LABEL_NAME, undefined_section,
- (valueT) 0, &zero_address_frag);
- pool->id = latest_pool_num ++;
+ return (walk_no_bignums (symbol_get_value_expression (sp)->X_add_symbol)
+ || (symbol_get_value_expression (sp)->X_op_symbol
+ && walk_no_bignums (symbol_get_value_expression (sp)->X_op_symbol)));
}
- /* Done. */
- return pool;
+ return 0;
}
-/* Add the literal in the global 'inst'
- structure to the relevent literal pool. */
+static int in_my_get_expression = 0;
+
+/* Third argument to my_get_expression. */
+#define GE_NO_PREFIX 0
+#define GE_IMM_PREFIX 1
+#define GE_OPT_PREFIX 2
static int
-add_to_lit_pool (void)
+my_get_expression (expressionS * ep, char ** str, int prefix_mode)
{
- literal_pool * pool;
- unsigned int entry;
+ char * save_in;
+ segT seg;
- pool = find_or_make_literal_pool ();
+ /* In unified syntax, all prefixes are optional. */
+ if (unified_syntax)
+ prefix_mode = GE_OPT_PREFIX;
- /* Check if this literal value is already in the pool. */
- for (entry = 0; entry < pool->next_free_entry; entry ++)
+ switch (prefix_mode)
{
- if ((pool->literals[entry].X_op == inst.reloc.exp.X_op)
- && (inst.reloc.exp.X_op == O_constant)
- && (pool->literals[entry].X_add_number
- == inst.reloc.exp.X_add_number)
- && (pool->literals[entry].X_unsigned
- == inst.reloc.exp.X_unsigned))
- break;
+ case GE_NO_PREFIX: break;
+ case GE_IMM_PREFIX:
+ if (!is_immediate_prefix (**str))
+ {
+ inst.error = _("immediate expression requires a # prefix");
+ return FAIL;
+ }
+ (*str)++;
+ break;
+ case GE_OPT_PREFIX:
+ if (is_immediate_prefix (**str))
+ (*str)++;
+ break;
+ default: abort ();
+ }
- if ((pool->literals[entry].X_op == inst.reloc.exp.X_op)
- && (inst.reloc.exp.X_op == O_symbol)
- && (pool->literals[entry].X_add_number
- == inst.reloc.exp.X_add_number)
- && (pool->literals[entry].X_add_symbol
- == inst.reloc.exp.X_add_symbol)
- && (pool->literals[entry].X_op_symbol
- == inst.reloc.exp.X_op_symbol))
- break;
- }
+ memset (ep, 0, sizeof (expressionS));
- /* Do we need to create a new entry? */
- if (entry == pool->next_free_entry)
+ save_in = input_line_pointer;
+ input_line_pointer = *str;
+ in_my_get_expression = 1;
+ seg = expression (ep);
+ in_my_get_expression = 0;
+
+ if (ep->X_op == O_illegal)
{
- if (entry >= MAX_LITERAL_POOL_SIZE)
- {
- inst.error = _("literal pool overflow");
- return FAIL;
- }
+ /* We found a bad expression in md_operand(). */
+ *str = input_line_pointer;
+ input_line_pointer = save_in;
+ if (inst.error == NULL)
+ inst.error = _("bad expression");
+ return 1;
+ }
- pool->literals[entry] = inst.reloc.exp;
- pool->next_free_entry += 1;
+#ifdef OBJ_AOUT
+ if (seg != absolute_section
+ && seg != text_section
+ && seg != data_section
+ && seg != bss_section
+ && seg != undefined_section)
+ {
+ inst.error = _("bad segment");
+ *str = input_line_pointer;
+ input_line_pointer = save_in;
+ return 1;
}
+#endif
- inst.reloc.exp.X_op = O_symbol;
- inst.reloc.exp.X_add_number = ((int) entry) * 4 - 8;
- inst.reloc.exp.X_add_symbol = pool->symbol;
+ /* Get rid of any bignums now, so that we don't generate an error for which
+ we can't establish a line number later on. Big numbers are never valid
+ in instructions, which is where this routine is always called. */
+ if (ep->X_op == O_big
+ || (ep->X_add_symbol
+ && (walk_no_bignums (ep->X_add_symbol)
+ || (ep->X_op_symbol
+ && walk_no_bignums (ep->X_op_symbol)))))
+ {
+ inst.error = _("invalid constant");
+ *str = input_line_pointer;
+ input_line_pointer = save_in;
+ return 1;
+ }
- return SUCCESS;
+ *str = input_line_pointer;
+ input_line_pointer = save_in;
+ return 0;
}
-/* Can't use symbol_new here, so have to create a symbol and then at
- a later date assign it a value. Thats what these functions do. */
+/* Turn a string in input_line_pointer into a floating point constant
+ of type TYPE, and store the appropriate bytes in *LITP. The number
+ of LITTLENUMS emitted is stored in *SIZEP. An error message is
+ returned, or NULL on OK.
-static void
-symbol_locate (symbolS * symbolP,
- const char * name, /* It is copied, the caller can modify. */
- segT segment, /* Segment identifier (SEG_<something>). */
- valueT valu, /* Symbol value. */
- fragS * frag) /* Associated fragment. */
-{
- unsigned int name_length;
- char * preserved_copy_of_name;
+ Note that fp constants aren't represent in the normal way on the ARM.
+ In big endian mode, things are as expected. However, in little endian
+ mode fp constants are big-endian word-wise, and little-endian byte-wise
+ within the words. For example, (double) 1.1 in big endian mode is
+ the byte sequence 3f f1 99 99 99 99 99 9a, and in little endian mode is
+ the byte sequence 99 99 f1 3f 9a 99 99 99.
- name_length = strlen (name) + 1; /* +1 for \0. */
- obstack_grow (¬es, name, name_length);
- preserved_copy_of_name = obstack_finish (¬es);
+ ??? The format of 12 byte floats is uncertain according to gcc's arm.h. */
-#ifdef tc_canonicalize_symbol_name
- preserved_copy_of_name =
- tc_canonicalize_symbol_name (preserved_copy_of_name);
-#endif
+char *
+md_atof (int type, char * litP, int * sizeP)
+{
+ int prec;
+ LITTLENUM_TYPE words[MAX_LITTLENUMS];
+ char *t;
+ int i;
- S_SET_NAME (symbolP, preserved_copy_of_name);
+ switch (type)
+ {
+ case 'f':
+ case 'F':
+ case 's':
+ case 'S':
+ prec = 2;
+ break;
- S_SET_SEGMENT (symbolP, segment);
- S_SET_VALUE (symbolP, valu);
- symbol_clear_list_pointers (symbolP);
+ case 'd':
+ case 'D':
+ case 'r':
+ case 'R':
+ prec = 4;
+ break;
- symbol_set_frag (symbolP, frag);
+ case 'x':
+ case 'X':
+ prec = 6;
+ break;
- /* Link to end of symbol chain. */
- {
- extern int symbol_table_frozen;
+ case 'p':
+ case 'P':
+ prec = 6;
+ break;
- if (symbol_table_frozen)
- abort ();
- }
+ default:
+ *sizeP = 0;
+ return _("bad call to MD_ATOF()");
+ }
- symbol_append (symbolP, symbol_lastP, & symbol_rootP, & symbol_lastP);
+ t = atof_ieee (input_line_pointer, type, words);
+ if (t)
+ input_line_pointer = t;
+ *sizeP = prec * 2;
- obj_symbol_new_hook (symbolP);
+ if (target_big_endian)
+ {
+ for (i = 0; i < prec; i++)
+ {
+ md_number_to_chars (litP, (valueT) words[i], 2);
+ litP += 2;
+ }
+ }
+ else
+ {
+ if (cpu_variant & FPU_ARCH_VFP)
+ for (i = prec - 1; i >= 0; i--)
+ {
+ md_number_to_chars (litP, (valueT) words[i], 2);
+ litP += 2;
+ }
+ else
+ /* For a 4 byte float the order of elements in `words' is 1 0.
+ For an 8 byte float the order is 1 0 3 2. */
+ for (i = 0; i < prec; i += 2)
+ {
+ md_number_to_chars (litP, (valueT) words[i + 1], 2);
+ md_number_to_chars (litP + 2, (valueT) words[i], 2);
+ litP += 4;
+ }
+ }
-#ifdef tc_symbol_new_hook
- tc_symbol_new_hook (symbolP);
-#endif
+ return 0;
+}
-#ifdef DEBUG_SYMS
- verify_symbol_chain (symbol_rootP, symbol_lastP);
-#endif /* DEBUG_SYMS */
+/* We handle all bad expressions here, so that we can report the faulty
+ instruction in the error message. */
+void
+md_operand (expressionS * expr)
+{
+ if (in_my_get_expression)
+ expr->X_op = O_illegal;
}
-/* Check that an immediate is valid.
- If so, convert it to the right format. */
+/* Immediate values. */
-static unsigned int
-validate_immediate (unsigned int val)
+/* Generic immediate-value read function for use in directives.
+ Accepts anything that 'expression' can fold to a constant.
+ *val receives the number. */
+#ifdef OBJ_ELF
+static int
+immediate_for_directive (int *val)
{
- unsigned int a;
- unsigned int i;
-
-#define rotate_left(v, n) (v << n | v >> (32 - n))
+ expressionS exp;
+ exp.X_op = O_illegal;
- for (i = 0; i < 32; i += 2)
- if ((a = rotate_left (val, i)) <= 0xff)
- return a | (i << 7); /* 12-bit pack: [shift-cnt,const]. */
+ if (is_immediate_prefix (*input_line_pointer))
+ {
+ input_line_pointer++;
+ expression (&exp);
+ }
- return FAIL;
+ if (exp.X_op != O_constant)
+ {
+ as_bad (_("expected #constant"));
+ ignore_rest_of_line ();
+ return FAIL;
+ }
+ *val = exp.X_add_number;
+ return SUCCESS;
}
+#endif
-/* Check to see if an immediate can be computed as two separate immediate
- values, added together. We already know that this value cannot be
- computed by just one ARM instruction. */
+/* Register parsing. */
-static unsigned int
-validate_immediate_twopart (unsigned int val,
- unsigned int * highpart)
+/* Generic register parser. CCP points to what should be the
+ beginning of a register name. If it is indeed a valid register
+ name, advance CCP over it and return the reg_entry structure;
+ otherwise return NULL. Does not issue diagnostics. */
+
+static struct reg_entry *
+arm_reg_parse_multi (char **ccp)
{
- unsigned int a;
- unsigned int i;
+ char *start = *ccp;
+ char *p;
+ struct reg_entry *reg;
- for (i = 0; i < 32; i += 2)
- if (((a = rotate_left (val, i)) & 0xff) != 0)
- {
- if (a & 0xff00)
- {
- if (a & ~ 0xffff)
- continue;
- * highpart = (a >> 8) | ((i + 24) << 7);
- }
- else if (a & 0xff0000)
- {
- if (a & 0xff000000)
- continue;
- * highpart = (a >> 16) | ((i + 16) << 7);
- }
- else
- {
- assert (a & 0xff000000);
- * highpart = (a >> 24) | ((i + 8) << 7);
- }
+#ifdef REGISTER_PREFIX
+ if (*start != REGISTER_PREFIX)
+ return FAIL;
+ start++;
+#endif
+#ifdef OPTIONAL_REGISTER_PREFIX
+ if (*start == OPTIONAL_REGISTER_PREFIX)
+ start++;
+#endif
- return (a & 0xff) | (i << 7);
- }
+ p = start;
+ if (!ISALPHA (*p) || !is_name_beginner (*p))
+ return NULL;
- return FAIL;
+ do
+ p++;
+ while (ISALPHA (*p) || ISDIGIT (*p) || *p == '_');
+
+ reg = (struct reg_entry *) hash_find_n (arm_reg_hsh, start, p - start);
+
+ if (!reg)
+ return NULL;
+
+ *ccp = p;
+ return reg;
}
+/* As above, but the register must be of type TYPE, and the return
+ value is the register number or NULL. */
+
static int
-validate_offset_imm (unsigned int val, int hwse)
+arm_reg_parse (char **ccp, enum arm_reg_type type)
{
- if ((hwse && val > 255) || val > 4095)
- return FAIL;
- return val;
-}
+ char *start = *ccp;
+ struct reg_entry *reg = arm_reg_parse_multi (ccp);
-\f
-#ifdef OBJ_ELF
-/* This code is to handle mapping symbols as defined in the ARM ELF spec.
- (See "Mapping symbols", section 4.5.5, ARM AAELF version 1.0).
- Note that previously, $a and $t has type STT_FUNC (BSF_OBJECT flag),
- and $d has type STT_OBJECT (BSF_OBJECT flag). Now all three are untyped. */
+ if (reg && reg->type == type)
+ return reg->number;
-static enum mstate mapstate = MAP_UNDEFINED;
+ /* Alternative syntaxes are accepted for a few register classes. */
+ switch (type)
+ {
+ case REG_TYPE_MVF:
+ case REG_TYPE_MVD:
+ case REG_TYPE_MVFX:
+ case REG_TYPE_MVDX:
+ /* Generic coprocessor register names are allowed for these. */
+ if (reg->type == REG_TYPE_CN)
+ return reg->number;
+ break;
-static void
-mapping_state (enum mstate state)
-{
- symbolS * symbolP;
- const char * symname;
- int type;
-
- if (mapstate == state)
- /* The mapping symbol has already been emitted.
- There is nothing else to do. */
- return;
-
- mapstate = state;
+ case REG_TYPE_CP:
+ /* For backward compatibility, a bare number is valid here. */
+ {
+ unsigned long processor = strtoul (start, ccp, 10);
+ if (*ccp != start && processor <= 15)
+ return processor;
+ }
- switch (state)
- {
- case MAP_DATA:
- symname = "$d";
- type = BSF_NO_FLAGS;
- break;
- case MAP_ARM:
- symname = "$a";
- type = BSF_NO_FLAGS;
- break;
- case MAP_THUMB:
- symname = "$t";
- type = BSF_NO_FLAGS;
+ case REG_TYPE_MMXWC:
+ /* WC includes WCG. ??? I'm not sure this is true for all
+ instructions that take WC registers. */
+ if (reg->type == REG_TYPE_MMXWCG)
+ return reg->number;
break;
- case MAP_UNDEFINED:
- return;
+
default:
- abort ();
+ break;
}
- seg_info (now_seg)->tc_segment_info_data.mapstate = state;
+ *ccp = start;
+ return FAIL;
+}
- symbolP = symbol_new (symname, now_seg, (valueT) frag_now_fix (), frag_now);
- symbol_table_insert (symbolP);
- symbol_get_bfdsym (symbolP)->flags |= type | BSF_LOCAL;
+/* Parse an ARM register list. Returns the bitmask, or FAIL. */
+static long
+parse_reg_list (char ** strp)
+{
+ char * str = * strp;
+ long range = 0;
+ int another_range;
- switch (state)
+ /* We come back here if we get ranges concatenated by '+' or '|'. */
+ do
{
- case MAP_ARM:
- THUMB_SET_FUNC (symbolP, 0);
- ARM_SET_THUMB (symbolP, 0);
- ARM_SET_INTERWORK (symbolP, support_interwork);
- break;
+ another_range = 0;
- case MAP_THUMB:
- THUMB_SET_FUNC (symbolP, 1);
- ARM_SET_THUMB (symbolP, 1);
- ARM_SET_INTERWORK (symbolP, support_interwork);
- break;
+ if (*str == '{')
+ {
+ int in_range = 0;
+ int cur_reg = -1;
- case MAP_DATA:
- default:
- return;
- }
-}
+ str++;
+ do
+ {
+ int reg;
-/* When we change sections we need to issue a new mapping symbol. */
+ if ((reg = arm_reg_parse (&str, REG_TYPE_RN)) == FAIL)
+ {
+ inst.error = _(reg_expected_msgs[REG_TYPE_RN]);
+ return FAIL;
+ }
-void
-arm_elf_change_section (void)
-{
- flagword flags;
- segment_info_type *seginfo;
+ if (in_range)
+ {
+ int i;
- /* Link an unlinked unwind index table section to the .text section. */
- if (elf_section_type (now_seg) == SHT_ARM_EXIDX
- && elf_linked_to_section (now_seg) == NULL)
- elf_linked_to_section (now_seg) = text_section;
+ if (reg <= cur_reg)
+ {
+ inst.error = _("bad range in register list");
+ return FAIL;
+ }
- if (!SEG_NORMAL (now_seg))
- return;
+ for (i = cur_reg + 1; i < reg; i++)
+ {
+ if (range & (1 << i))
+ as_tsktsk
+ (_("Warning: duplicated register (r%d) in register list"),
+ i);
+ else
+ range |= 1 << i;
+ }
+ in_range = 0;
+ }
- flags = bfd_get_section_flags (stdoutput, now_seg);
+ if (range & (1 << reg))
+ as_tsktsk (_("Warning: duplicated register (r%d) in register list"),
+ reg);
+ else if (reg <= cur_reg)
+ as_tsktsk (_("Warning: register range not in ascending order"));
- /* We can ignore sections that only contain debug info. */
- if ((flags & SEC_ALLOC) == 0)
- return;
+ range |= 1 << reg;
+ cur_reg = reg;
+ }
+ while (skip_past_comma (&str) != FAIL
+ || (in_range = 1, *str++ == '-'));
+ str--;
- seginfo = seg_info (now_seg);
- mapstate = seginfo->tc_segment_info_data.mapstate;
- marked_pr_dependency = seginfo->tc_segment_info_data.marked_pr_dependency;
-}
+ if (*str++ != '}')
+ {
+ inst.error = _("missing `}'");
+ return FAIL;
+ }
+ }
+ else
+ {
+ expressionS expr;
-int
-arm_elf_section_type (const char * str, size_t len)
-{
- if (len == 5 && strncmp (str, "exidx", 5) == 0)
- return SHT_ARM_EXIDX;
+ if (my_get_expression (&expr, &str, GE_NO_PREFIX))
+ return FAIL;
- return -1;
-}
-#else
-#define mapping_state(a)
-#endif /* OBJ_ELF */
-\f
-/* arm_reg_parse () := if it looks like a register, return its token and
- advance the pointer. */
+ if (expr.X_op == O_constant)
+ {
+ if (expr.X_add_number
+ != (expr.X_add_number & 0x0000ffff))
+ {
+ inst.error = _("invalid register mask");
+ return FAIL;
+ }
-static int
-arm_reg_parse (char ** ccp, struct hash_control * htab)
-{
- char * start = * ccp;
- char c;
- char * p;
- struct reg_entry * reg;
+ if ((range & expr.X_add_number) != 0)
+ {
+ int regno = range & expr.X_add_number;
-#ifdef REGISTER_PREFIX
- if (*start != REGISTER_PREFIX)
- return FAIL;
- p = start + 1;
-#else
- p = start;
-#ifdef OPTIONAL_REGISTER_PREFIX
- if (*p == OPTIONAL_REGISTER_PREFIX)
- p++, start++;
-#endif
-#endif
- if (!ISALPHA (*p) || !is_name_beginner (*p))
- return FAIL;
+ regno &= -regno;
+ regno = (1 << regno) - 1;
+ as_tsktsk
+ (_("Warning: duplicated register (r%d) in register list"),
+ regno);
+ }
- c = *p++;
- while (ISALPHA (c) || ISDIGIT (c) || c == '_')
- c = *p++;
+ range |= expr.X_add_number;
+ }
+ else
+ {
+ if (inst.reloc.type != 0)
+ {
+ inst.error = _("expression too complex");
+ return FAIL;
+ }
- *--p = 0;
- reg = (struct reg_entry *) hash_find (htab, start);
- *p = c;
+ memcpy (&inst.reloc.exp, &expr, sizeof (expressionS));
+ inst.reloc.type = BFD_RELOC_ARM_MULTI;
+ inst.reloc.pc_rel = 0;
+ }
+ }
- if (reg)
- {
- *ccp = p;
- return reg->number;
+ if (*str == '|' || *str == '+')
+ {
+ str++;
+ another_range = 1;
+ }
}
+ while (another_range);
- return FAIL;
+ *strp = str;
+ return range;
}
-/* Search for the following register name in each of the possible reg name
- tables. Return the classification if found, or REG_TYPE_MAX if not
- present. */
+/* Parse a VFP register list. If the string is invalid return FAIL.
+ Otherwise return the number of registers, and set PBASE to the first
+ register. Double precision registers are matched if DP is nonzero. */
-static enum arm_reg_type
-arm_reg_parse_any (char *cp)
+static int
+parse_vfp_reg_list (char **str, int *pbase, int dp)
{
+ int base_reg;
+ int new_base;
+ int regtype;
+ int max_regs;
+ int count = 0;
+ int warned = 0;
+ unsigned long mask = 0;
int i;
- for (i = (int) REG_TYPE_FIRST; i < (int) REG_TYPE_MAX; i++)
- if (arm_reg_parse (&cp, all_reg_maps[i].htab) != FAIL)
- return (enum arm_reg_type) i;
+ if (**str != '{')
+ return FAIL;
- return REG_TYPE_MAX;
-}
+ (*str)++;
-static void
-opcode_select (int width)
-{
- switch (width)
+ if (dp)
{
- case 16:
- if (! thumb_mode)
- {
- if (! (cpu_variant & ARM_EXT_V4T))
- as_bad (_("selected processor does not support THUMB opcodes"));
+ regtype = REG_TYPE_VFD;
+ max_regs = 16;
+ }
+ else
+ {
+ regtype = REG_TYPE_VFS;
+ max_regs = 32;
+ }
- thumb_mode = 1;
- /* No need to force the alignment, since we will have been
- coming from ARM mode, which is word-aligned. */
- record_alignment (now_seg, 1);
- }
- mapping_state (MAP_THUMB);
- break;
+ base_reg = max_regs;
- case 32:
- if (thumb_mode)
+ do
+ {
+ new_base = arm_reg_parse (str, regtype);
+ if (new_base == FAIL)
{
- if ((cpu_variant & ARM_ALL) == ARM_EXT_V4T)
- as_bad (_("selected processor does not support ARM opcodes"));
-
- thumb_mode = 0;
+ inst.error = gettext (reg_expected_msgs[regtype]);
+ return FAIL;
+ }
- if (!need_pass_2)
- frag_align (2, 0, 0);
+ if (new_base < base_reg)
+ base_reg = new_base;
- record_alignment (now_seg, 1);
+ if (mask & (1 << new_base))
+ {
+ inst.error = _("invalid register list");
+ return FAIL;
}
- mapping_state (MAP_ARM);
- break;
- default:
- as_bad (_("invalid instruction size selected (%d)"), width);
- }
-}
-
-static void
-s_req (int a ATTRIBUTE_UNUSED)
-{
- as_bad (_("invalid syntax for .req directive"));
-}
-
-/* The .unreq directive deletes an alias which was previously defined
- by .req. For example:
-
- my_alias .req r11
- .unreq my_alias */
-
-static void
-s_unreq (int a ATTRIBUTE_UNUSED)
-{
- char * name;
- char saved_char;
+ if ((mask >> new_base) != 0 && ! warned)
+ {
+ as_tsktsk (_("register list not in ascending order"));
+ warned = 1;
+ }
- skip_whitespace (input_line_pointer);
- name = input_line_pointer;
+ mask |= 1 << new_base;
+ count++;
- while (*input_line_pointer != 0
- && *input_line_pointer != ' '
- && *input_line_pointer != '\n')
- ++input_line_pointer;
+ if (**str == '-') /* We have the start of a range expression */
+ {
+ int high_range;
- saved_char = *input_line_pointer;
- *input_line_pointer = 0;
+ (*str)++;
- if (*name)
- {
- enum arm_reg_type req_type = arm_reg_parse_any (name);
+ if ((high_range = arm_reg_parse (str, regtype)) == FAIL)
+ {
+ inst.error = gettext (reg_expected_msgs[regtype]);
+ return FAIL;
+ }
- if (req_type != REG_TYPE_MAX)
- {
- char *temp_name = name;
- int req_no = arm_reg_parse (&temp_name, all_reg_maps[req_type].htab);
+ if (high_range <= new_base)
+ {
+ inst.error = _("register range not in ascending order");
+ return FAIL;
+ }
- if (req_no != FAIL)
+ for (new_base++; new_base <= high_range; new_base++)
{
- struct reg_entry *req_entry;
-
- /* Check to see if this alias is a builtin one. */
- req_entry = hash_delete (all_reg_maps[req_type].htab, name);
-
- if (!req_entry)
- as_bad (_("unreq: missing hash entry for \"%s\""), name);
- else if (req_entry->builtin)
- /* FIXME: We are deleting a built in register alias which
- points to a const data structure, so we only need to
- free up the memory used by the key in the hash table.
- Unfortunately we have not recorded this value, so this
- is a memory leak. */
- /* FIXME: Should we issue a warning message ? */
- ;
- else
+ if (mask & (1 << new_base))
{
- /* Deleting a user defined alias. We need to free the
- key and the value, but fortunately the key is the same
- as the value->name field. */
- free ((char *) req_entry->name);
- free (req_entry);
+ inst.error = _("invalid register list");
+ return FAIL;
}
+
+ mask |= 1 << new_base;
+ count++;
}
- else
- as_bad (_(".unreq: unrecognized symbol \"%s\""), name);
}
- else
- as_bad (_(".unreq: unrecognized symbol \"%s\""), name);
}
- else
- as_bad (_("invalid syntax for .unreq directive"));
+ while (skip_past_comma (str) != FAIL);
- *input_line_pointer = saved_char;
- demand_empty_rest_of_line ();
-}
+ (*str)++;
-static void
-s_bss (int ignore ATTRIBUTE_UNUSED)
-{
- /* We don't support putting frags in the BSS segment, we fake it by
- marking in_bss, then looking at s_skip for clues. */
- subseg_set (bss_section, 0);
- demand_empty_rest_of_line ();
- mapping_state (MAP_DATA);
+ /* Sanity check -- should have raised a parse error above. */
+ if (count == 0 || count > max_regs)
+ abort ();
+
+ *pbase = base_reg;
+
+ /* Final test -- the registers must be consecutive. */
+ mask >>= base_reg;
+ for (i = 0; i < count; i++)
+ {
+ if ((mask & (1u << i)) == 0)
+ {
+ inst.error = _("non-contiguous register range");
+ return FAIL;
+ }
+ }
+
+ return count;
}
-static void
-s_even (int ignore ATTRIBUTE_UNUSED)
+/* Parse an explicit relocation suffix on an expression. This is
+ either nothing, or a word in parentheses. Note that if !OBJ_ELF,
+ arm_reloc_hsh contains no entries, so this function can only
+ succeed if there is no () after the word. Returns -1 on error,
+ BFD_RELOC_UNUSED if there wasn't any suffix. */
+static int
+parse_reloc (char **str)
{
- /* Never make frag if expect extra pass. */
- if (!need_pass_2)
- frag_align (1, 0, 0);
+ struct reloc_entry *r;
+ char *p, *q;
- record_alignment (now_seg, 1);
+ if (**str != '(')
+ return BFD_RELOC_UNUSED;
- demand_empty_rest_of_line ();
+ p = *str + 1;
+ q = p;
+
+ while (*q && *q != ')' && *q != ',')
+ q++;
+ if (*q != ')')
+ return -1;
+
+ if ((r = hash_find_n (arm_reloc_hsh, p, q - p)) == NULL)
+ return -1;
+
+ *str = q + 1;
+ return r->reloc;
}
+/* Directives: register aliases. */
+
static void
-s_ltorg (int ignored ATTRIBUTE_UNUSED)
+insert_reg_alias (char *str, int number, int type)
{
- unsigned int entry;
- literal_pool * pool;
- char sym_name[20];
+ struct reg_entry *new;
+ const char *name;
- pool = find_literal_pool ();
- if (pool == NULL
- || pool->symbol == NULL
- || pool->next_free_entry == 0)
- return;
+ if ((new = hash_find (arm_reg_hsh, str)) != 0)
+ {
+ if (new->builtin)
+ as_warn (_("ignoring attempt to redefine built-in register '%s'"), str);
- mapping_state (MAP_DATA);
+ /* Only warn about a redefinition if it's not defined as the
+ same register. */
+ else if (new->number != number || new->type != type)
+ as_warn (_("ignoring redefinition of register alias '%s'"), str);
- /* Align pool as you have word accesses.
- Only make a frag if we have to. */
- if (!need_pass_2)
- frag_align (2, 0, 0);
+ return;
+ }
- record_alignment (now_seg, 2);
+ name = xstrdup (str);
+ new = xmalloc (sizeof (struct reg_entry));
- sprintf (sym_name, "$$lit_\002%x", pool->id);
+ new->name = name;
+ new->number = number;
+ new->type = type;
+ new->builtin = FALSE;
- symbol_locate (pool->symbol, sym_name, now_seg,
- (valueT) frag_now_fix (), frag_now);
- symbol_table_insert (pool->symbol);
+ if (hash_insert (arm_reg_hsh, name, (PTR) new))
+ abort ();
+}
- ARM_SET_THUMB (pool->symbol, thumb_mode);
+/* Look for the .req directive. This is of the form:
-#if defined OBJ_COFF || defined OBJ_ELF
- ARM_SET_INTERWORK (pool->symbol, support_interwork);
-#endif
+ new_register_name .req existing_register_name
- for (entry = 0; entry < pool->next_free_entry; entry ++)
- /* First output the expression in the instruction to the pool. */
- emit_expr (&(pool->literals[entry]), 4); /* .word */
+ If we find one, or if it looks sufficiently like one that we want to
+ handle any error here, return non-zero. Otherwise return zero. */
- /* Mark the pool as empty. */
- pool->next_free_entry = 0;
- pool->symbol = NULL;
-}
+static int
+create_register_alias (char * newname, char *p)
+{
+ struct reg_entry *old;
+ char *oldname, *nbuf;
+ size_t nlen;
-/* Same as s_align_ptwo but align 0 => align 2. */
+ /* The input scrubber ensures that whitespace after the mnemonic is
+ collapsed to single spaces. */
+ oldname = p;
+ if (strncmp (oldname, " .req ", 6) != 0)
+ return 0;
-static void
-s_align (int unused ATTRIBUTE_UNUSED)
-{
- int temp;
- long temp_fill;
- long max_alignment = 15;
+ oldname += 6;
+ if (*oldname == '\0')
+ return 0;
- temp = get_absolute_expression ();
- if (temp > max_alignment)
- as_bad (_("alignment too large: %d assumed"), temp = max_alignment);
- else if (temp < 0)
+ old = hash_find (arm_reg_hsh, oldname);
+ if (!old)
{
- as_bad (_("alignment negative. 0 assumed."));
- temp = 0;
+ as_warn (_("unknown register '%s' -- .req ignored"), oldname);
+ return 1;
}
- if (*input_line_pointer == ',')
- {
- input_line_pointer++;
- temp_fill = get_absolute_expression ();
- }
- else
- temp_fill = 0;
+ /* If TC_CASE_SENSITIVE is defined, then newname already points to
+ the desired alias name, and p points to its end. If not, then
+ the desired alias name is in the global original_case_string. */
+#ifdef TC_CASE_SENSITIVE
+ nlen = p - newname;
+#else
+ newname = original_case_string;
+ nlen = strlen (newname);
+#endif
- if (!temp)
- temp = 2;
+ nbuf = alloca (nlen + 1);
+ memcpy (nbuf, newname, nlen);
+ nbuf[nlen] = '\0';
- /* Only make a frag if we HAVE to. */
- if (temp && !need_pass_2)
- frag_align (temp, (int) temp_fill, 0);
- demand_empty_rest_of_line ();
+ /* Create aliases under the new name as stated; an all-lowercase
+ version of the new name; and an all-uppercase version of the new
+ name. */
+ insert_reg_alias (nbuf, old->number, old->type);
- record_alignment (now_seg, temp);
+ for (p = nbuf; *p; p++)
+ *p = TOUPPER (*p);
+
+ if (strncmp (nbuf, newname, nlen))
+ insert_reg_alias (nbuf, old->number, old->type);
+
+ for (p = nbuf; *p; p++)
+ *p = TOLOWER (*p);
+
+ if (strncmp (nbuf, newname, nlen))
+ insert_reg_alias (nbuf, old->number, old->type);
+
+ return 1;
}
+/* Should never be called, as .req goes between the alias and the
+ register name, not at the beginning of the line. */
static void
-s_force_thumb (int ignore ATTRIBUTE_UNUSED)
+s_req (int a ATTRIBUTE_UNUSED)
{
- /* If we are not already in thumb mode go into it, EVEN if
- the target processor does not support thumb instructions.
- This is used by gcc/config/arm/lib1funcs.asm for example
- to compile interworking support functions even if the
- target processor should not support interworking. */
- if (! thumb_mode)
- {
- thumb_mode = 2;
+ as_bad (_("invalid syntax for .req directive"));
+}
- record_alignment (now_seg, 1);
- }
+/* The .unreq directive deletes an alias which was previously defined
+ by .req. For example:
- demand_empty_rest_of_line ();
-}
+ my_alias .req r11
+ .unreq my_alias */
static void
-s_thumb_func (int ignore ATTRIBUTE_UNUSED)
+s_unreq (int a ATTRIBUTE_UNUSED)
{
- if (! thumb_mode)
- opcode_select (16);
+ char * name;
+ char saved_char;
- /* The following label is the name/address of the start of a Thumb function.
- We need to know this for the interworking support. */
- label_is_thumb_function_name = TRUE;
+ name = input_line_pointer;
+
+ while (*input_line_pointer != 0
+ && *input_line_pointer != ' '
+ && *input_line_pointer != '\n')
+ ++input_line_pointer;
+
+ saved_char = *input_line_pointer;
+ *input_line_pointer = 0;
+
+ if (!*name)
+ as_bad (_("invalid syntax for .unreq directive"));
+ else
+ {
+ struct reg_entry *reg = hash_find (arm_reg_hsh, name);
+
+ if (!reg)
+ as_bad (_("unknown register alias '%s'"), name);
+ else if (reg->builtin)
+ as_warn (_("ignoring attempt to undefine built-in register '%s'"),
+ name);
+ else
+ {
+ hash_delete (arm_reg_hsh, name);
+ free ((char *) reg->name);
+ free (reg);
+ }
+ }
+ *input_line_pointer = saved_char;
demand_empty_rest_of_line ();
}
-/* Perform a .set directive, but also mark the alias as
- being a thumb function. */
+/* Directives: Instruction set selection. */
+
+#ifdef OBJ_ELF
+/* This code is to handle mapping symbols as defined in the ARM ELF spec.
+ (See "Mapping symbols", section 4.5.5, ARM AAELF version 1.0).
+ Note that previously, $a and $t has type STT_FUNC (BSF_OBJECT flag),
+ and $d has type STT_OBJECT (BSF_OBJECT flag). Now all three are untyped. */
+
+static enum mstate mapstate = MAP_UNDEFINED;
static void
-s_thumb_set (int equiv)
+mapping_state (enum mstate state)
{
- /* XXX the following is a duplicate of the code for s_set() in read.c
- We cannot just call that code as we need to get at the symbol that
- is created. */
- char * name;
- char delim;
- char * end_name;
symbolS * symbolP;
+ const char * symname;
+ int type;
- /* Especial apologies for the random logic:
- This just grew, and could be parsed much more simply!
- Dean - in haste. */
- name = input_line_pointer;
- delim = get_symbol_end ();
- end_name = input_line_pointer;
- *end_name = delim;
+ if (mapstate == state)
+ /* The mapping symbol has already been emitted.
+ There is nothing else to do. */
+ return;
- SKIP_WHITESPACE ();
+ mapstate = state;
- if (*input_line_pointer != ',')
+ switch (state)
{
- *end_name = 0;
- as_bad (_("expected comma after name \"%s\""), name);
+ case MAP_DATA:
+ symname = "$d";
+ type = BSF_NO_FLAGS;
+ break;
+ case MAP_ARM:
+ symname = "$a";
+ type = BSF_NO_FLAGS;
+ break;
+ case MAP_THUMB:
+ symname = "$t";
+ type = BSF_NO_FLAGS;
+ break;
+ case MAP_UNDEFINED:
+ return;
+ default:
+ abort ();
+ }
+
+ seg_info (now_seg)->tc_segment_info_data.mapstate = state;
+
+ symbolP = symbol_new (symname, now_seg, (valueT) frag_now_fix (), frag_now);
+ symbol_table_insert (symbolP);
+ symbol_get_bfdsym (symbolP)->flags |= type | BSF_LOCAL;
+
+ switch (state)
+ {
+ case MAP_ARM:
+ THUMB_SET_FUNC (symbolP, 0);
+ ARM_SET_THUMB (symbolP, 0);
+ ARM_SET_INTERWORK (symbolP, support_interwork);
+ break;
+
+ case MAP_THUMB:
+ THUMB_SET_FUNC (symbolP, 1);
+ ARM_SET_THUMB (symbolP, 1);
+ ARM_SET_INTERWORK (symbolP, support_interwork);
+ break;
+
+ case MAP_DATA:
+ default:
+ return;
+ }
+}
+#else
+#define mapping_state(x) /* nothing */
+#endif
+
+/* Find the real, Thumb encoded start of a Thumb function. */
+
+static symbolS *
+find_real_start (symbolS * symbolP)
+{
+ char * real_start;
+ const char * name = S_GET_NAME (symbolP);
+ symbolS * new_target;
+
+ /* This definition must agree with the one in gcc/config/arm/thumb.c. */
+#define STUB_NAME ".real_start_of"
+
+ if (name == NULL)
+ abort ();
+
+ /* Names that start with '.' are local labels, not function entry points.
+ The compiler may generate BL instructions to these labels because it
+ needs to perform a branch to a far away location. */
+ if (name[0] == '.')
+ return symbolP;
+
+ real_start = malloc (strlen (name) + strlen (STUB_NAME) + 1);
+ sprintf (real_start, "%s%s", STUB_NAME, name);
+
+ new_target = symbol_find (real_start);
+
+ if (new_target == NULL)
+ {
+ as_warn ("Failed to find real start of function: %s\n", name);
+ new_target = symbolP;
+ }
+
+ free (real_start);
+
+ return new_target;
+}
+
+static void
+opcode_select (int width)
+{
+ switch (width)
+ {
+ case 16:
+ if (! thumb_mode)
+ {
+ if (! (cpu_variant & ARM_EXT_V4T))
+ as_bad (_("selected processor does not support THUMB opcodes"));
+
+ thumb_mode = 1;
+ /* No need to force the alignment, since we will have been
+ coming from ARM mode, which is word-aligned. */
+ record_alignment (now_seg, 1);
+ }
+ mapping_state (MAP_THUMB);
+ break;
+
+ case 32:
+ if (thumb_mode)
+ {
+ if ((cpu_variant & ARM_ALL) == ARM_EXT_V4T)
+ as_bad (_("selected processor does not support ARM opcodes"));
+
+ thumb_mode = 0;
+
+ if (!need_pass_2)
+ frag_align (2, 0, 0);
+
+ record_alignment (now_seg, 1);
+ }
+ mapping_state (MAP_ARM);
+ break;
+
+ default:
+ as_bad (_("invalid instruction size selected (%d)"), width);
+ }
+}
+
+static void
+s_arm (int ignore ATTRIBUTE_UNUSED)
+{
+ opcode_select (32);
+ demand_empty_rest_of_line ();
+}
+
+static void
+s_thumb (int ignore ATTRIBUTE_UNUSED)
+{
+ opcode_select (16);
+ demand_empty_rest_of_line ();
+}
+
+static void
+s_code (int unused ATTRIBUTE_UNUSED)
+{
+ int temp;
+
+ temp = get_absolute_expression ();
+ switch (temp)
+ {
+ case 16:
+ case 32:
+ opcode_select (temp);
+ break;
+
+ default:
+ as_bad (_("invalid operand to .code directive (%d) (expecting 16 or 32)"), temp);
+ }
+}
+
+static void
+s_force_thumb (int ignore ATTRIBUTE_UNUSED)
+{
+ /* If we are not already in thumb mode go into it, EVEN if
+ the target processor does not support thumb instructions.
+ This is used by gcc/config/arm/lib1funcs.asm for example
+ to compile interworking support functions even if the
+ target processor should not support interworking. */
+ if (! thumb_mode)
+ {
+ thumb_mode = 2;
+ record_alignment (now_seg, 1);
+ }
+
+ demand_empty_rest_of_line ();
+}
+
+static void
+s_thumb_func (int ignore ATTRIBUTE_UNUSED)
+{
+ s_thumb (0);
+
+ /* The following label is the name/address of the start of a Thumb function.
+ We need to know this for the interworking support. */
+ label_is_thumb_function_name = TRUE;
+}
+
+/* Perform a .set directive, but also mark the alias as
+ being a thumb function. */
+
+static void
+s_thumb_set (int equiv)
+{
+ /* XXX the following is a duplicate of the code for s_set() in read.c
+ We cannot just call that code as we need to get at the symbol that
+ is created. */
+ char * name;
+ char delim;
+ char * end_name;
+ symbolS * symbolP;
+
+ /* Especial apologies for the random logic:
+ This just grew, and could be parsed much more simply!
+ Dean - in haste. */
+ name = input_line_pointer;
+ delim = get_symbol_end ();
+ end_name = input_line_pointer;
+ *end_name = delim;
+
+ if (*input_line_pointer != ',')
+ {
+ *end_name = 0;
+ as_bad (_("expected comma after name \"%s\""), name);
*end_name = delim;
ignore_rest_of_line ();
return;
#ifndef NO_LISTING
/* When doing symbol listings, play games with dummy fragments living
outside the normal fragment chain to record the file and line info
- for this symbol. */
+ for this symbol. */
if (listing & LISTING_SYMBOLS)
{
extern struct list_info_struct * listing_tail;
demand_empty_rest_of_line ();
- /* XXX Now we come to the Thumb specific bit of code. */
+ /* XXX Now we come to the Thumb specific bit of code. */
THUMB_SET_FUNC (symbolP, 1);
ARM_SET_THUMB (symbolP, 1);
#endif
}
-static void
-s_arm (int ignore ATTRIBUTE_UNUSED)
-{
- opcode_select (32);
- demand_empty_rest_of_line ();
-}
+/* Directives: Mode selection. */
+/* .syntax [unified|divided] - choose the new unified syntax
+ (same for Arm and Thumb encoding, modulo slight differences in what
+ can be represented) or the old divergent syntax for each mode. */
static void
-s_thumb (int ignore ATTRIBUTE_UNUSED)
+s_syntax (int unused ATTRIBUTE_UNUSED)
{
- opcode_select (16);
+ char *name, delim;
+
+ name = input_line_pointer;
+ delim = get_symbol_end ();
+
+ if (!strcasecmp (name, "unified"))
+ unified_syntax = TRUE;
+ else if (!strcasecmp (name, "divided"))
+ unified_syntax = FALSE;
+ else
+ {
+ as_bad (_("unrecognized syntax mode \"%s\""), name);
+ return;
+ }
+ *input_line_pointer = delim;
demand_empty_rest_of_line ();
}
+/* Directives: sectioning and alignment. */
+
+/* Same as s_align_ptwo but align 0 => align 2. */
+
static void
-s_code (int unused ATTRIBUTE_UNUSED)
+s_align (int unused ATTRIBUTE_UNUSED)
{
int temp;
+ long temp_fill;
+ long max_alignment = 15;
temp = get_absolute_expression ();
- switch (temp)
+ if (temp > max_alignment)
+ as_bad (_("alignment too large: %d assumed"), temp = max_alignment);
+ else if (temp < 0)
{
- case 16:
- case 32:
- opcode_select (temp);
- break;
+ as_bad (_("alignment negative. 0 assumed."));
+ temp = 0;
+ }
- default:
- as_bad (_("invalid operand to .code directive (%d) (expecting 16 or 32)"), temp);
+ if (*input_line_pointer == ',')
+ {
+ input_line_pointer++;
+ temp_fill = get_absolute_expression ();
}
-}
+ else
+ temp_fill = 0;
-static void
-end_of_line (char * str)
-{
- skip_whitespace (str);
+ if (!temp)
+ temp = 2;
- if (*str != '\0' && !inst.error)
- inst.error = _("garbage following instruction");
+ /* Only make a frag if we HAVE to. */
+ if (temp && !need_pass_2)
+ frag_align (temp, (int) temp_fill, 0);
+ demand_empty_rest_of_line ();
+
+ record_alignment (now_seg, temp);
}
-static int
-skip_past_comma (char ** str)
+static void
+s_bss (int ignore ATTRIBUTE_UNUSED)
{
- char * p = * str, c;
- int comma = 0;
+ /* We don't support putting frags in the BSS segment, we fake it by
+ marking in_bss, then looking at s_skip for clues. */
+ subseg_set (bss_section, 0);
+ demand_empty_rest_of_line ();
+ mapping_state (MAP_DATA);
+}
- while ((c = *p) == ' ' || c == ',')
- {
- p++;
- if (c == ',' && comma++)
- return FAIL;
- }
+static void
+s_even (int ignore ATTRIBUTE_UNUSED)
+{
+ /* Never make frag if expect extra pass. */
+ if (!need_pass_2)
+ frag_align (1, 0, 0);
- if (c == '\0')
- return FAIL;
+ record_alignment (now_seg, 1);
- *str = p;
- return comma ? SUCCESS : FAIL;
+ demand_empty_rest_of_line ();
}
-/* Return TRUE if anything in the expression is a bignum. */
+/* Directives: Literal pools. */
-static int
-walk_no_bignums (symbolS * sp)
+static literal_pool *
+find_literal_pool (void)
{
- if (symbol_get_value_expression (sp)->X_op == O_big)
- return 1;
+ literal_pool * pool;
- if (symbol_get_value_expression (sp)->X_add_symbol)
+ for (pool = list_of_pools; pool != NULL; pool = pool->next)
{
- return (walk_no_bignums (symbol_get_value_expression (sp)->X_add_symbol)
- || (symbol_get_value_expression (sp)->X_op_symbol
- && walk_no_bignums (symbol_get_value_expression (sp)->X_op_symbol)));
+ if (pool->section == now_seg
+ && pool->sub_section == now_subseg)
+ break;
}
- return 0;
+ return pool;
}
-static int in_my_get_expression = 0;
-
-static int
-my_get_expression (expressionS * ep, char ** str)
+static literal_pool *
+find_or_make_literal_pool (void)
{
- char * save_in;
- segT seg;
+ /* Next literal pool ID number. */
+ static unsigned int latest_pool_num = 1;
+ literal_pool * pool;
- save_in = input_line_pointer;
- input_line_pointer = *str;
- in_my_get_expression = 1;
- seg = expression (ep);
- in_my_get_expression = 0;
+ pool = find_literal_pool ();
- if (ep->X_op == O_illegal)
+ if (pool == NULL)
{
- /* We found a bad expression in md_operand(). */
- *str = input_line_pointer;
- input_line_pointer = save_in;
- return 1;
- }
+ /* Create a new pool. */
+ pool = xmalloc (sizeof (* pool));
+ if (! pool)
+ return NULL;
-#ifdef OBJ_AOUT
- if (seg != absolute_section
- && seg != text_section
- && seg != data_section
- && seg != bss_section
- && seg != undefined_section)
- {
- inst.error = _("bad_segment");
- *str = input_line_pointer;
- input_line_pointer = save_in;
- return 1;
+ pool->next_free_entry = 0;
+ pool->section = now_seg;
+ pool->sub_section = now_subseg;
+ pool->next = list_of_pools;
+ pool->symbol = NULL;
+
+ /* Add it to the list. */
+ list_of_pools = pool;
}
-#endif
- /* Get rid of any bignums now, so that we don't generate an error for which
- we can't establish a line number later on. Big numbers are never valid
- in instructions, which is where this routine is always called. */
- if (ep->X_op == O_big
- || (ep->X_add_symbol
- && (walk_no_bignums (ep->X_add_symbol)
- || (ep->X_op_symbol
- && walk_no_bignums (ep->X_op_symbol)))))
+ /* New pools, and emptied pools, will have a NULL symbol. */
+ if (pool->symbol == NULL)
{
- inst.error = _("invalid constant");
- *str = input_line_pointer;
- input_line_pointer = save_in;
- return 1;
+ pool->symbol = symbol_create (FAKE_LABEL_NAME, undefined_section,
+ (valueT) 0, &zero_address_frag);
+ pool->id = latest_pool_num ++;
}
- *str = input_line_pointer;
- input_line_pointer = save_in;
- return 0;
+ /* Done. */
+ return pool;
}
-/* A standard register must be given at this point.
- SHIFT is the place to put it in inst.instruction.
- Restores input start point on error.
- Returns the reg#, or FAIL. */
+/* Add the literal in the global 'inst'
+ structure to the relevent literal pool. */
static int
-reg_required_here (char ** str, int shift)
+add_to_lit_pool (void)
{
- static char buff [128]; /* XXX */
- int reg;
- char * start = * str;
+ literal_pool * pool;
+ unsigned int entry;
- if ((reg = arm_reg_parse (str, all_reg_maps[REG_TYPE_RN].htab)) != FAIL)
+ pool = find_or_make_literal_pool ();
+
+ /* Check if this literal value is already in the pool. */
+ for (entry = 0; entry < pool->next_free_entry; entry ++)
{
- if (shift >= 0)
- inst.instruction |= reg << shift;
- return reg;
+ if ((pool->literals[entry].X_op == inst.reloc.exp.X_op)
+ && (inst.reloc.exp.X_op == O_constant)
+ && (pool->literals[entry].X_add_number
+ == inst.reloc.exp.X_add_number)
+ && (pool->literals[entry].X_unsigned
+ == inst.reloc.exp.X_unsigned))
+ break;
+
+ if ((pool->literals[entry].X_op == inst.reloc.exp.X_op)
+ && (inst.reloc.exp.X_op == O_symbol)
+ && (pool->literals[entry].X_add_number
+ == inst.reloc.exp.X_add_number)
+ && (pool->literals[entry].X_add_symbol
+ == inst.reloc.exp.X_add_symbol)
+ && (pool->literals[entry].X_op_symbol
+ == inst.reloc.exp.X_op_symbol))
+ break;
}
- /* Restore the start point, we may have got a reg of the wrong class. */
- *str = start;
+ /* Do we need to create a new entry? */
+ if (entry == pool->next_free_entry)
+ {
+ if (entry >= MAX_LITERAL_POOL_SIZE)
+ {
+ inst.error = _("literal pool overflow");
+ return FAIL;
+ }
+
+ pool->literals[entry] = inst.reloc.exp;
+ pool->next_free_entry += 1;
+ }
- /* In the few cases where we might be able to accept something else
- this error can be overridden. */
- sprintf (buff, _("register expected, not '%.100s'"), start);
- inst.error = buff;
+ inst.reloc.exp.X_op = O_symbol;
+ inst.reloc.exp.X_add_number = ((int) entry) * 4;
+ inst.reloc.exp.X_add_symbol = pool->symbol;
- return FAIL;
+ return SUCCESS;
}
-/* A Intel Wireless MMX technology register
- must be given at this point.
- Shift is the place to put it in inst.instruction.
- Restores input start point on err.
- Returns the reg#, or FAIL. */
+/* Can't use symbol_new here, so have to create a symbol and then at
+ a later date assign it a value. Thats what these functions do. */
-static int
-wreg_required_here (char ** str,
- int shift,
- enum wreg_type reg_type)
-{
- static char buff [128];
- int reg;
- char * start = *str;
-
- if ((reg = arm_reg_parse (str, all_reg_maps[REG_TYPE_IWMMXT].htab)) != FAIL)
- {
- if (wr_register (reg)
- && (reg_type == IWMMXT_REG_WR || reg_type == IWMMXT_REG_WR_OR_WC))
- {
- if (shift >= 0)
- inst.instruction |= (reg ^ WR_PREFIX) << shift;
- return reg;
- }
- else if (wc_register (reg)
- && (reg_type == IWMMXT_REG_WC || reg_type == IWMMXT_REG_WR_OR_WC))
- {
- if (shift >= 0)
- inst.instruction |= (reg ^ WC_PREFIX) << shift;
- return reg;
- }
- else if ((wcg_register (reg) && reg_type == IWMMXT_REG_WCG))
- {
- if (shift >= 0)
- inst.instruction |= ((reg ^ WC_PREFIX) - 8) << shift;
- return reg;
- }
- }
-
- /* Restore the start point, we may have got a reg of the wrong class. */
- *str = start;
-
- /* In the few cases where we might be able to accept
- something else this error can be overridden. */
- sprintf (buff, _("Intel Wireless MMX technology register expected, not '%.100s'"), start);
- inst.error = buff;
+static void
+symbol_locate (symbolS * symbolP,
+ const char * name, /* It is copied, the caller can modify. */
+ segT segment, /* Segment identifier (SEG_<something>). */
+ valueT valu, /* Symbol value. */
+ fragS * frag) /* Associated fragment. */
+{
+ unsigned int name_length;
+ char * preserved_copy_of_name;
- return FAIL;
-}
+ name_length = strlen (name) + 1; /* +1 for \0. */
+ obstack_grow (¬es, name, name_length);
+ preserved_copy_of_name = obstack_finish (¬es);
-static const struct asm_psr *
-arm_psr_parse (char ** ccp)
-{
- char * start = * ccp;
- char c;
- char * p;
- const struct asm_psr * psr;
+#ifdef tc_canonicalize_symbol_name
+ preserved_copy_of_name =
+ tc_canonicalize_symbol_name (preserved_copy_of_name);
+#endif
- p = start;
+ S_SET_NAME (symbolP, preserved_copy_of_name);
- /* Skip to the end of the next word in the input stream. */
- do
- {
- c = *p++;
- }
- while (ISALPHA (c) || c == '_');
+ S_SET_SEGMENT (symbolP, segment);
+ S_SET_VALUE (symbolP, valu);
+ symbol_clear_list_pointers (symbolP);
- /* Terminate the word. */
- *--p = 0;
+ symbol_set_frag (symbolP, frag);
- /* CPSR's and SPSR's can now be lowercase. This is just a convenience
- feature for ease of use and backwards compatibility. */
- if (!strncmp (start, "cpsr", 4))
- strncpy (start, "CPSR", 4);
- else if (!strncmp (start, "spsr", 4))
- strncpy (start, "SPSR", 4);
+ /* Link to end of symbol chain. */
+ {
+ extern int symbol_table_frozen;
- /* Now locate the word in the psr hash table. */
- psr = (const struct asm_psr *) hash_find (arm_psr_hsh, start);
+ if (symbol_table_frozen)
+ abort ();
+ }
- /* Restore the input stream. */
- *p = c;
+ symbol_append (symbolP, symbol_lastP, & symbol_rootP, & symbol_lastP);
- /* If we found a valid match, advance the
- stream pointer past the end of the word. */
- *ccp = p;
+ obj_symbol_new_hook (symbolP);
- return psr;
+#ifdef tc_symbol_new_hook
+ tc_symbol_new_hook (symbolP);
+#endif
+
+#ifdef DEBUG_SYMS
+ verify_symbol_chain (symbol_rootP, symbol_lastP);
+#endif /* DEBUG_SYMS */
}
-/* Parse the input looking for a PSR flag. */
-static int
-psr_required_here (char ** str)
+static void
+s_ltorg (int ignored ATTRIBUTE_UNUSED)
{
- char * start = * str;
- const struct asm_psr * psr;
-
- psr = arm_psr_parse (str);
+ unsigned int entry;
+ literal_pool * pool;
+ char sym_name[20];
- if (psr)
- {
- /* If this is the SPSR that is being modified, set the R bit. */
- if (! psr->cpsr)
- inst.instruction |= SPSR_BIT;
+ pool = find_literal_pool ();
+ if (pool == NULL
+ || pool->symbol == NULL
+ || pool->next_free_entry == 0)
+ return;
- /* Set the psr flags in the MSR instruction. */
- inst.instruction |= psr->field << PSR_SHIFT;
+ mapping_state (MAP_DATA);
- return SUCCESS;
- }
+ /* Align pool as you have word accesses.
+ Only make a frag if we have to. */
+ if (!need_pass_2)
+ frag_align (2, 0, 0);
- /* In the few cases where we might be able to accept
- something else this error can be overridden. */
- inst.error = _("flag for {c}psr instruction expected");
+ record_alignment (now_seg, 2);
- /* Restore the start point. */
- *str = start;
- return FAIL;
-}
+ sprintf (sym_name, "$$lit_\002%x", pool->id);
-static int
-co_proc_number (char ** str)
-{
- int processor, pchar;
- char *start;
+ symbol_locate (pool->symbol, sym_name, now_seg,
+ (valueT) frag_now_fix (), frag_now);
+ symbol_table_insert (pool->symbol);
- skip_whitespace (*str);
- start = *str;
+ ARM_SET_THUMB (pool->symbol, thumb_mode);
- /* The data sheet seems to imply that just a number on its own is valid
- here, but the RISC iX assembler seems to accept a prefix 'p'. We will
- accept either. */
- if ((processor = arm_reg_parse (str, all_reg_maps[REG_TYPE_CP].htab))
- == FAIL)
- {
- *str = start;
+#if defined OBJ_COFF || defined OBJ_ELF
+ ARM_SET_INTERWORK (pool->symbol, support_interwork);
+#endif
- pchar = *(*str)++;
- if (pchar >= '0' && pchar <= '9')
- {
- processor = pchar - '0';
- if (**str >= '0' && **str <= '9')
- {
- processor = processor * 10 + *(*str)++ - '0';
- if (processor > 15)
- {
- inst.error = _("illegal co-processor number");
- return FAIL;
- }
- }
- }
- else
- {
- inst.error = all_reg_maps[REG_TYPE_CP].expected;
- return FAIL;
- }
- }
+ for (entry = 0; entry < pool->next_free_entry; entry ++)
+ /* First output the expression in the instruction to the pool. */
+ emit_expr (&(pool->literals[entry]), 4); /* .word */
- inst.instruction |= processor << 8;
- return SUCCESS;
+ /* Mark the pool as empty. */
+ pool->next_free_entry = 0;
+ pool->symbol = NULL;
}
-static int
-cp_opc_expr (char ** str, int where, int length)
-{
- expressionS expr;
+#ifdef OBJ_ELF
+/* Forward declarations for functions below, in the MD interface
+ section. */
+static void fix_new_arm (fragS *, int, short, expressionS *, int, int);
+static valueT create_unwind_entry (int);
+static void start_unwind_section (const segT, int);
+static void add_unwind_opcode (valueT, int);
+static void flush_pending_unwind (void);
- skip_whitespace (* str);
+/* Directives: Data. */
- memset (&expr, '\0', sizeof (expr));
+static void
+s_arm_elf_cons (int nbytes)
+{
+ expressionS exp;
- if (my_get_expression (&expr, str))
- return FAIL;
- if (expr.X_op != O_constant)
- {
- inst.error = _("bad or missing expression");
- return FAIL;
- }
+#ifdef md_flush_pending_output
+ md_flush_pending_output ();
+#endif
- if ((expr.X_add_number & ((1 << length) - 1)) != expr.X_add_number)
+ if (is_it_end_of_statement ())
{
- inst.error = _("immediate co-processor expression too large");
- return FAIL;
+ demand_empty_rest_of_line ();
+ return;
}
- inst.instruction |= expr.X_add_number << where;
- return SUCCESS;
-}
-
-static int
-cp_reg_required_here (char ** str, int where)
-{
- int reg;
- char * start = *str;
+#ifdef md_cons_align
+ md_cons_align (nbytes);
+#endif
- if ((reg = arm_reg_parse (str, all_reg_maps[REG_TYPE_CN].htab)) != FAIL)
+ mapping_state (MAP_DATA);
+ do
{
- inst.instruction |= reg << where;
- return reg;
- }
-
- /* In the few cases where we might be able to accept something else
- this error can be overridden. */
- inst.error = all_reg_maps[REG_TYPE_CN].expected;
+ int reloc;
+ char *base = input_line_pointer;
- /* Restore the start point. */
- *str = start;
- return FAIL;
-}
+ expression (& exp);
-static int
-fp_reg_required_here (char ** str, int where)
-{
- int reg;
- char * start = * str;
+ if (exp.X_op != O_symbol)
+ emit_expr (&exp, (unsigned int) nbytes);
+ else
+ {
+ char *before_reloc = input_line_pointer;
+ reloc = parse_reloc (&input_line_pointer);
+ if (reloc == -1)
+ {
+ as_bad (_("unrecognized relocation suffix"));
+ ignore_rest_of_line ();
+ return;
+ }
+ else if (reloc == BFD_RELOC_UNUSED)
+ emit_expr (&exp, (unsigned int) nbytes);
+ else
+ {
+ reloc_howto_type *howto = bfd_reloc_type_lookup (stdoutput, reloc);
+ int size = bfd_get_reloc_size (howto);
- if ((reg = arm_reg_parse (str, all_reg_maps[REG_TYPE_FN].htab)) != FAIL)
- {
- inst.instruction |= reg << where;
- return reg;
+ if (size > nbytes)
+ as_bad ("%s relocations do not fit in %d bytes",
+ howto->name, nbytes);
+ else
+ {
+ /* We've parsed an expression stopping at O_symbol.
+ But there may be more expression left now that we
+ have parsed the relocation marker. Parse it again.
+ XXX Surely there is a cleaner way to do this. */
+ char *p = input_line_pointer;
+ int offset;
+ char *save_buf = alloca (input_line_pointer - base);
+ memcpy (save_buf, base, input_line_pointer - base);
+ memmove (base + (input_line_pointer - before_reloc),
+ base, before_reloc - base);
+
+ input_line_pointer = base + (input_line_pointer-before_reloc);
+ expression (&exp);
+ memcpy (base, save_buf, p - base);
+
+ offset = nbytes - size;
+ p = frag_more ((int) nbytes);
+ fix_new_exp (frag_now, p - frag_now->fr_literal + offset,
+ size, &exp, 0, reloc);
+ }
+ }
+ }
}
+ while (*input_line_pointer++ == ',');
- /* In the few cases where we might be able to accept something else
- this error can be overridden. */
- inst.error = all_reg_maps[REG_TYPE_FN].expected;
-
- /* Restore the start point. */
- *str = start;
- return FAIL;
+ /* Put terminator back into stream. */
+ input_line_pointer --;
+ demand_empty_rest_of_line ();
}
-static int
-cp_address_offset (char ** str)
-{
- int offset;
- skip_whitespace (* str);
+/* Parse a .rel31 directive. */
- if (! is_immediate_prefix (**str))
- {
- inst.error = _("immediate expression expected");
- return FAIL;
- }
+static void
+s_arm_rel31 (int ignored ATTRIBUTE_UNUSED)
+{
+ expressionS exp;
+ char *p;
+ valueT highbit;
- (*str)++;
+ highbit = 0;
+ if (*input_line_pointer == '1')
+ highbit = 0x80000000;
+ else if (*input_line_pointer != '0')
+ as_bad (_("expected 0 or 1"));
- if (my_get_expression (& inst.reloc.exp, str))
- return FAIL;
+ input_line_pointer++;
+ if (*input_line_pointer != ',')
+ as_bad (_("missing comma"));
+ input_line_pointer++;
- if (inst.reloc.exp.X_op == O_constant)
- {
- offset = inst.reloc.exp.X_add_number;
+#ifdef md_flush_pending_output
+ md_flush_pending_output ();
+#endif
- if (offset & 3)
- {
- inst.error = _("co-processor address must be word aligned");
- return FAIL;
- }
+#ifdef md_cons_align
+ md_cons_align (4);
+#endif
- if (offset > 1023 || offset < -1023)
- {
- inst.error = _("offset too large");
- return FAIL;
- }
+ mapping_state (MAP_DATA);
- if (offset >= 0)
- inst.instruction |= INDEX_UP;
- else
- offset = -offset;
+ expression (&exp);
- inst.instruction |= offset >> 2;
- }
- else
- inst.reloc.type = BFD_RELOC_ARM_CP_OFF_IMM;
+ p = frag_more (4);
+ md_number_to_chars (p, highbit, 4);
+ fix_new_arm (frag_now, p - frag_now->fr_literal, 4, &exp, 1,
+ BFD_RELOC_ARM_PREL31);
- return SUCCESS;
+ demand_empty_rest_of_line ();
}
-static int
-cp_address_required_here (char ** str, int wb_ok)
-{
- char * p = * str;
- int pre_inc = 0;
- int write_back = 0;
+/* Directives: AEABI stack-unwind tables. */
- if (*p == '[')
- {
- int reg;
+/* Parse an unwind_fnstart directive. Simply records the current location. */
- p++;
- skip_whitespace (p);
+static void
+s_arm_unwind_fnstart (int ignored ATTRIBUTE_UNUSED)
+{
+ demand_empty_rest_of_line ();
+ /* Mark the start of the function. */
+ unwind.proc_start = expr_build_dot ();
- if ((reg = reg_required_here (& p, 16)) == FAIL)
- return FAIL;
+ /* Reset the rest of the unwind info. */
+ unwind.opcode_count = 0;
+ unwind.table_entry = NULL;
+ unwind.personality_routine = NULL;
+ unwind.personality_index = -1;
+ unwind.frame_size = 0;
+ unwind.fp_offset = 0;
+ unwind.fp_reg = 13;
+ unwind.fp_used = 0;
+ unwind.sp_restored = 0;
+}
- skip_whitespace (p);
- if (*p == ']')
- {
- p++;
+/* Parse a handlerdata directive. Creates the exception handling table entry
+ for the function. */
- skip_whitespace (p);
+static void
+s_arm_unwind_handlerdata (int ignored ATTRIBUTE_UNUSED)
+{
+ demand_empty_rest_of_line ();
+ if (unwind.table_entry)
+ as_bad (_("dupicate .handlerdata directive"));
- if (*p == '\0')
- {
- /* As an extension to the official ARM syntax we allow:
- [Rn]
- as a short hand for:
- [Rn,#0] */
- inst.instruction |= PRE_INDEX | INDEX_UP;
- *str = p;
- return SUCCESS;
- }
+ create_unwind_entry (1);
+}
- if (skip_past_comma (& p) == FAIL)
- {
- inst.error = _("comma expected after closing square bracket");
- return FAIL;
- }
+/* Parse an unwind_fnend directive. Generates the index table entry. */
- skip_whitespace (p);
+static void
+s_arm_unwind_fnend (int ignored ATTRIBUTE_UNUSED)
+{
+ long where;
+ char *ptr;
+ valueT val;
- if (*p == '#')
- {
- if (wb_ok)
- {
- /* [Rn], #expr */
- write_back = WRITE_BACK;
+ demand_empty_rest_of_line ();
- if (reg == REG_PC)
- {
- inst.error = _("pc may not be used in post-increment");
- return FAIL;
- }
+ /* Add eh table entry. */
+ if (unwind.table_entry == NULL)
+ val = create_unwind_entry (0);
+ else
+ val = 0;
- if (cp_address_offset (& p) == FAIL)
- return FAIL;
- }
- else
- pre_inc = PRE_INDEX | INDEX_UP;
- }
- else if (*p == '{')
- {
- int option;
+ /* Add index table entry. This is two words. */
+ start_unwind_section (unwind.saved_seg, 1);
+ frag_align (2, 0, 0);
+ record_alignment (now_seg, 2);
- /* [Rn], {<expr>} */
- p++;
+ ptr = frag_more (8);
+ where = frag_now_fix () - 8;
- skip_whitespace (p);
+ /* Self relative offset of the function start. */
+ fix_new (frag_now, where, 4, unwind.proc_start, 0, 1,
+ BFD_RELOC_ARM_PREL31);
- if (my_get_expression (& inst.reloc.exp, & p))
- return FAIL;
+ /* Indicate dependency on EHABI-defined personality routines to the
+ linker, if it hasn't been done already. */
+ if (unwind.personality_index >= 0 && unwind.personality_index < 3
+ && !(marked_pr_dependency & (1 << unwind.personality_index)))
+ {
+ static const char *const name[] = {
+ "__aeabi_unwind_cpp_pr0",
+ "__aeabi_unwind_cpp_pr1",
+ "__aeabi_unwind_cpp_pr2"
+ };
+ symbolS *pr = symbol_find_or_make (name[unwind.personality_index]);
+ fix_new (frag_now, where, 0, pr, 0, 1, BFD_RELOC_NONE);
+ marked_pr_dependency |= 1 << unwind.personality_index;
+ seg_info (now_seg)->tc_segment_info_data.marked_pr_dependency
+ = marked_pr_dependency;
+ }
- if (inst.reloc.exp.X_op == O_constant)
- {
- option = inst.reloc.exp.X_add_number;
+ if (val)
+ /* Inline exception table entry. */
+ md_number_to_chars (ptr + 4, val, 4);
+ else
+ /* Self relative offset of the table entry. */
+ fix_new (frag_now, where + 4, 4, unwind.table_entry, 0, 1,
+ BFD_RELOC_ARM_PREL31);
- if (option > 255 || option < 0)
- {
- inst.error = _("'option' field too large");
- return FAIL;
- }
+ /* Restore the original section. */
+ subseg_set (unwind.saved_seg, unwind.saved_subseg);
+}
- skip_whitespace (p);
- if (*p != '}')
- {
- inst.error = _("'}' expected at end of 'option' field");
- return FAIL;
- }
- else
- {
- p++;
- inst.instruction |= option;
- inst.instruction |= INDEX_UP;
- }
- }
- else
- {
- inst.error = _("non-constant expressions for 'option' field not supported");
- return FAIL;
- }
- }
- else
- {
- inst.error = _("# or { expected after comma");
- return FAIL;
- }
- }
- else
- {
- /* '['Rn, #expr']'[!] */
+/* Parse an unwind_cantunwind directive. */
- if (skip_past_comma (& p) == FAIL)
- {
- inst.error = _("pre-indexed expression expected");
- return FAIL;
- }
+static void
+s_arm_unwind_cantunwind (int ignored ATTRIBUTE_UNUSED)
+{
+ demand_empty_rest_of_line ();
+ if (unwind.personality_routine || unwind.personality_index != -1)
+ as_bad (_("personality routine specified for cantunwind frame"));
- pre_inc = PRE_INDEX;
+ unwind.personality_index = -2;
+}
- if (cp_address_offset (& p) == FAIL)
- return FAIL;
- skip_whitespace (p);
+/* Parse a personalityindex directive. */
- if (*p++ != ']')
- {
- inst.error = _("missing ]");
- return FAIL;
- }
+static void
+s_arm_unwind_personalityindex (int ignored ATTRIBUTE_UNUSED)
+{
+ expressionS exp;
- skip_whitespace (p);
+ if (unwind.personality_routine || unwind.personality_index != -1)
+ as_bad (_("duplicate .personalityindex directive"));
- if (wb_ok && *p == '!')
- {
- if (reg == REG_PC)
- {
- inst.error = _("pc may not be used with write-back");
- return FAIL;
- }
+ expression (&exp);
- p++;
- write_back = WRITE_BACK;
- }
- }
- }
- else
+ if (exp.X_op != O_constant
+ || exp.X_add_number < 0 || exp.X_add_number > 15)
{
- if (my_get_expression (&inst.reloc.exp, &p))
- return FAIL;
-
- inst.reloc.type = BFD_RELOC_ARM_CP_OFF_IMM;
- inst.reloc.exp.X_add_number -= 8; /* PC rel adjust. */
- inst.reloc.pc_rel = 1;
- inst.instruction |= (REG_PC << 16);
- pre_inc = PRE_INDEX;
+ as_bad (_("bad personality routine number"));
+ ignore_rest_of_line ();
+ return;
}
- inst.instruction |= write_back | pre_inc;
- *str = p;
- return SUCCESS;
-}
+ unwind.personality_index = exp.X_add_number;
-static int
-cp_byte_address_offset (char ** str)
-{
- int offset;
+ demand_empty_rest_of_line ();
+}
- skip_whitespace (* str);
- if (! is_immediate_prefix (**str))
- {
- inst.error = _("immediate expression expected");
- return FAIL;
- }
+/* Parse a personality directive. */
- (*str)++;
+static void
+s_arm_unwind_personality (int ignored ATTRIBUTE_UNUSED)
+{
+ char *name, *p, c;
- if (my_get_expression (& inst.reloc.exp, str))
- return FAIL;
+ if (unwind.personality_routine || unwind.personality_index != -1)
+ as_bad (_("duplicate .personality directive"));
- if (inst.reloc.exp.X_op == O_constant)
- {
- offset = inst.reloc.exp.X_add_number;
-
- if (offset > 255 || offset < -255)
- {
- inst.error = _("offset too large");
- return FAIL;
- }
-
- if (offset >= 0)
- inst.instruction |= INDEX_UP;
- else
- offset = -offset;
+ name = input_line_pointer;
+ c = get_symbol_end ();
+ p = input_line_pointer;
+ unwind.personality_routine = symbol_find_or_make (name);
+ *p = c;
+ demand_empty_rest_of_line ();
+}
- inst.instruction |= offset;
- }
- else
- inst.reloc.type = BFD_RELOC_ARM_CP_OFF_IMM_S2;
- return SUCCESS;
-}
+/* Parse a directive saving core registers. */
-static int
-cp_byte_address_required_here (char ** str)
+static void
+s_arm_unwind_save_core (void)
{
- char * p = * str;
- int pre_inc = 0;
- int write_back = 0;
+ valueT op;
+ long range;
+ int n;
- if (*p == '[')
+ range = parse_reg_list (&input_line_pointer);
+ if (range == FAIL)
{
- int reg;
-
- p++;
- skip_whitespace (p);
-
- if ((reg = reg_required_here (& p, 16)) == FAIL)
- return FAIL;
-
- skip_whitespace (p);
-
- if (*p == ']')
- {
- p++;
-
- if (skip_past_comma (& p) == SUCCESS)
- {
- /* [Rn], #expr */
- write_back = WRITE_BACK;
-
- if (reg == REG_PC)
- {
- inst.error = _("pc may not be used in post-increment");
- return FAIL;
- }
-
- if (cp_byte_address_offset (& p) == FAIL)
- return FAIL;
- }
- else
- pre_inc = PRE_INDEX | INDEX_UP;
- }
- else
- {
- /* '['Rn, #expr']'[!] */
-
- if (skip_past_comma (& p) == FAIL)
- {
- inst.error = _("pre-indexed expression expected");
- return FAIL;
- }
-
- pre_inc = PRE_INDEX;
-
- if (cp_byte_address_offset (& p) == FAIL)
- return FAIL;
-
- skip_whitespace (p);
-
- if (*p++ != ']')
- {
- inst.error = _("missing ]");
- return FAIL;
- }
+ as_bad (_("expected register list"));
+ ignore_rest_of_line ();
+ return;
+ }
- skip_whitespace (p);
+ demand_empty_rest_of_line ();
- if (*p == '!')
- {
- if (reg == REG_PC)
- {
- inst.error = _("pc may not be used with write-back");
- return FAIL;
- }
+ /* Turn .unwind_movsp ip followed by .unwind_save {..., ip, ...}
+ into .unwind_save {..., sp...}. We aren't bothered about the value of
+ ip because it is clobbered by calls. */
+ if (unwind.sp_restored && unwind.fp_reg == 12
+ && (range & 0x3000) == 0x1000)
+ {
+ unwind.opcode_count--;
+ unwind.sp_restored = 0;
+ range = (range | 0x2000) & ~0x1000;
+ unwind.pending_offset = 0;
+ }
- p++;
- write_back = WRITE_BACK;
- }
- }
+ /* See if we can use the short opcodes. These pop a block of upto 8
+ registers starting with r4, plus maybe r14. */
+ for (n = 0; n < 8; n++)
+ {
+ /* Break at the first non-saved register. */
+ if ((range & (1 << (n + 4))) == 0)
+ break;
}
- else
+ /* See if there are any other bits set. */
+ if (n == 0 || (range & (0xfff0 << n) & 0xbff0) != 0)
{
- if (my_get_expression (&inst.reloc.exp, &p))
- return FAIL;
-
- inst.reloc.type = BFD_RELOC_ARM_CP_OFF_IMM_S2;
- inst.reloc.exp.X_add_number -= 8; /* PC rel adjust. */
- inst.reloc.pc_rel = 1;
- inst.instruction |= (REG_PC << 16);
- pre_inc = PRE_INDEX;
+ /* Use the long form. */
+ op = 0x8000 | ((range >> 4) & 0xfff);
+ add_unwind_opcode (op, 2);
}
-
- inst.instruction |= write_back | pre_inc;
- *str = p;
- return SUCCESS;
-}
-
-static void
-do_nop (char * str)
-{
- skip_whitespace (str);
- if (*str == '{')
+ else
{
- str++;
-
- if (my_get_expression (&inst.reloc.exp, &str))
- inst.reloc.exp.X_op = O_illegal;
+ /* Use the short form. */
+ if (range & 0x4000)
+ op = 0xa8; /* Pop r14. */
else
- {
- skip_whitespace (str);
- if (*str == '}')
- str++;
- else
- inst.reloc.exp.X_op = O_illegal;
- }
-
- if (inst.reloc.exp.X_op != O_constant
- || inst.reloc.exp.X_add_number > 255
- || inst.reloc.exp.X_add_number < 0)
- {
- inst.error = _("Invalid NOP hint");
- return;
- }
+ op = 0xa0; /* Do not pop r14. */
+ op |= (n - 1);
+ add_unwind_opcode (op, 1);
+ }
- /* Arcitectural NOP hints are CPSR sets with no bits selected. */
- inst.instruction &= 0xf0000000;
- inst.instruction |= 0x0320f000 + inst.reloc.exp.X_add_number;
+ /* Pop r0-r3. */
+ if (range & 0xf)
+ {
+ op = 0xb100 | (range & 0xf);
+ add_unwind_opcode (op, 2);
}
- end_of_line (str);
+ /* Record the number of bytes pushed. */
+ for (n = 0; n < 16; n++)
+ {
+ if (range & (1 << n))
+ unwind.frame_size += 4;
+ }
}
-static void
-do_empty (char * str)
-{
- /* Do nothing really. */
- end_of_line (str);
-}
+
+/* Parse a directive saving FPA registers. */
static void
-do_mrs (char * str)
+s_arm_unwind_save_fpa (int reg)
{
- int skip = 0;
+ expressionS exp;
+ int num_regs;
+ valueT op;
- /* Only one syntax. */
- skip_whitespace (str);
+ /* Get Number of registers to transfer. */
+ if (skip_past_comma (&input_line_pointer) != FAIL)
+ expression (&exp);
+ else
+ exp.X_op = O_illegal;
- if (reg_required_here (&str, 12) == FAIL)
+ if (exp.X_op != O_constant)
{
- inst.error = BAD_ARGS;
+ as_bad (_("expected , <constant>"));
+ ignore_rest_of_line ();
return;
}
- if (skip_past_comma (&str) == FAIL)
+ num_regs = exp.X_add_number;
+
+ if (num_regs < 1 || num_regs > 4)
{
- inst.error = _("comma expected after register name");
+ as_bad (_("number of registers must be in the range [1:4]"));
+ ignore_rest_of_line ();
return;
}
- skip_whitespace (str);
+ demand_empty_rest_of_line ();
- if ( streq (str, "CPSR")
- || streq (str, "SPSR")
- /* Lower case versions for backwards compatibility. */
- || streq (str, "cpsr")
- || streq (str, "spsr"))
- skip = 4;
-
- /* This is for backwards compatibility with older toolchains. */
- else if ( streq (str, "cpsr_all")
- || streq (str, "spsr_all"))
- skip = 8;
+ if (reg == 4)
+ {
+ /* Short form. */
+ op = 0xb4 | (num_regs - 1);
+ add_unwind_opcode (op, 1);
+ }
else
{
- inst.error = _("CPSR or SPSR expected");
- return;
+ /* Long form. */
+ op = 0xc800 | (reg << 4) | (num_regs - 1);
+ add_unwind_opcode (op, 2);
}
-
- if (* str == 's' || * str == 'S')
- inst.instruction |= SPSR_BIT;
- str += skip;
-
- end_of_line (str);
+ unwind.frame_size += num_regs * 12;
}
-/* Two possible forms:
- "{C|S}PSR_<field>, Rm",
- "{C|S}PSR_f, #expression". */
+
+/* Parse a directive saving VFP registers. */
static void
-do_msr (char * str)
+s_arm_unwind_save_vfp (void)
{
- skip_whitespace (str);
-
- if (psr_required_here (& str) == FAIL)
- return;
+ int count;
+ int reg;
+ valueT op;
- if (skip_past_comma (& str) == FAIL)
+ count = parse_vfp_reg_list (&input_line_pointer, ®, 1);
+ if (count == FAIL)
{
- inst.error = _("comma missing after psr flags");
+ as_bad (_("expected register list"));
+ ignore_rest_of_line ();
return;
}
- skip_whitespace (str);
+ demand_empty_rest_of_line ();
- if (reg_required_here (& str, 0) != FAIL)
+ if (reg == 8)
{
- inst.error = NULL;
- end_of_line (str);
- return;
+ /* Short form. */
+ op = 0xb8 | (count - 1);
+ add_unwind_opcode (op, 1);
}
-
- if (! is_immediate_prefix (* str))
+ else
{
- inst.error =
- _("only a register or immediate value can follow a psr flag");
- return;
+ /* Long form. */
+ op = 0xb300 | (reg << 4) | (count - 1);
+ add_unwind_opcode (op, 2);
}
+ unwind.frame_size += count * 8 + 4;
+}
- str ++;
- inst.error = NULL;
- if (my_get_expression (& inst.reloc.exp, & str))
- {
- inst.error =
- _("only a register or immediate value can follow a psr flag");
- return;
- }
+/* Parse a directive saving iWMMXt data registers. */
+
+static void
+s_arm_unwind_save_mmxwr (void)
+{
+ int reg;
+ int hi_reg;
+ int i;
+ unsigned mask = 0;
+ valueT op;
- inst.instruction |= INST_IMMEDIATE;
+ if (*input_line_pointer == '{')
+ input_line_pointer++;
- if (inst.reloc.exp.X_add_symbol)
- {
- inst.reloc.type = BFD_RELOC_ARM_IMMEDIATE;
- inst.reloc.pc_rel = 0;
- }
- else
+ do
{
- unsigned value = validate_immediate (inst.reloc.exp.X_add_number);
+ reg = arm_reg_parse (&input_line_pointer, REG_TYPE_MMXWR);
- if (value == (unsigned) FAIL)
+ if (reg == FAIL)
{
- inst.error = _("invalid constant");
- return;
+ as_bad (_(reg_expected_msgs[REG_TYPE_MMXWR]));
+ goto error;
}
- inst.instruction |= value;
- }
-
- inst.error = NULL;
- end_of_line (str);
-}
+ if (mask >> reg)
+ as_tsktsk (_("register list not in ascending order"));
+ mask |= 1 << reg;
-/* Long Multiply Parser
- UMULL RdLo, RdHi, Rm, Rs
- SMULL RdLo, RdHi, Rm, Rs
- UMLAL RdLo, RdHi, Rm, Rs
- SMLAL RdLo, RdHi, Rm, Rs. */
+ if (*input_line_pointer == '-')
+ {
+ input_line_pointer++;
+ hi_reg = arm_reg_parse (&input_line_pointer, REG_TYPE_MMXWR);
+ if (hi_reg == FAIL)
+ {
+ as_bad (_(reg_expected_msgs[REG_TYPE_MMXWR]));
+ goto error;
+ }
+ else if (reg >= hi_reg)
+ {
+ as_bad (_("bad register range"));
+ goto error;
+ }
+ for (; reg < hi_reg; reg++)
+ mask |= 1 << reg;
+ }
+ }
+ while (skip_past_comma (&input_line_pointer) != FAIL);
-static void
-do_mull (char * str)
-{
- int rdlo, rdhi, rm, rs;
+ if (*input_line_pointer == '}')
+ input_line_pointer++;
- /* Only one format "rdlo, rdhi, rm, rs". */
- skip_whitespace (str);
+ demand_empty_rest_of_line ();
- if ((rdlo = reg_required_here (&str, 12)) == FAIL)
- {
- inst.error = BAD_ARGS;
- return;
- }
+ /* Generate any deferred opcodes becuuse we're going to be looking at
+ the list. */
+ flush_pending_unwind ();
- if (skip_past_comma (&str) == FAIL
- || (rdhi = reg_required_here (&str, 16)) == FAIL)
+ for (i = 0; i < 16; i++)
{
- inst.error = BAD_ARGS;
- return;
+ if (mask & (1 << i))
+ unwind.frame_size += 8;
}
- if (skip_past_comma (&str) == FAIL
- || (rm = reg_required_here (&str, 0)) == FAIL)
+ /* Attempt to combine with a previous opcode. We do this because gcc
+ likes to output separate unwind directives for a single block of
+ registers. */
+ if (unwind.opcode_count > 0)
{
- inst.error = BAD_ARGS;
- return;
- }
-
- /* rdhi, rdlo and rm must all be different. */
- if (rdlo == rdhi || rdlo == rm || rdhi == rm)
- as_tsktsk (_("rdhi, rdlo and rm must all be different"));
+ i = unwind.opcodes[unwind.opcode_count - 1];
+ if ((i & 0xf8) == 0xc0)
+ {
+ i &= 7;
+ /* Only merge if the blocks are contiguous. */
+ if (i < 6)
+ {
+ if ((mask & 0xfe00) == (1 << 9))
+ {
+ mask |= ((1 << (i + 11)) - 1) & 0xfc00;
+ unwind.opcode_count--;
+ }
+ }
+ else if (i == 6 && unwind.opcode_count >= 2)
+ {
+ i = unwind.opcodes[unwind.opcode_count - 2];
+ reg = i >> 4;
+ i &= 0xf;
- if (skip_past_comma (&str) == FAIL
- || (rs = reg_required_here (&str, 8)) == FAIL)
- {
- inst.error = BAD_ARGS;
- return;
+ op = 0xffff << (reg - 1);
+ if (reg > 0
+ || ((mask & op) == (1u << (reg - 1))))
+ {
+ op = (1 << (reg + i + 1)) - 1;
+ op &= ~((1 << reg) - 1);
+ mask |= op;
+ unwind.opcode_count -= 2;
+ }
+ }
+ }
}
- if (rdhi == REG_PC || rdhi == REG_PC || rdhi == REG_PC || rdhi == REG_PC)
+ hi_reg = 15;
+ /* We want to generate opcodes in the order the registers have been
+ saved, ie. descending order. */
+ for (reg = 15; reg >= -1; reg--)
{
- inst.error = BAD_PC;
- return;
+ /* Save registers in blocks. */
+ if (reg < 0
+ || !(mask & (1 << reg)))
+ {
+ /* We found an unsaved reg. Generate opcodes to save the
+ preceeding block. */
+ if (reg != hi_reg)
+ {
+ if (reg == 9)
+ {
+ /* Short form. */
+ op = 0xc0 | (hi_reg - 10);
+ add_unwind_opcode (op, 1);
+ }
+ else
+ {
+ /* Long form. */
+ op = 0xc600 | ((reg + 1) << 4) | ((hi_reg - reg) - 1);
+ add_unwind_opcode (op, 2);
+ }
+ }
+ hi_reg = reg - 1;
+ }
}
- end_of_line (str);
+ return;
+error:
+ ignore_rest_of_line ();
}
static void
-do_mul (char * str)
+s_arm_unwind_save_mmxwcg (void)
{
- int rd, rm;
+ int reg;
+ int hi_reg;
+ unsigned mask = 0;
+ valueT op;
- /* Only one format "rd, rm, rs". */
- skip_whitespace (str);
+ if (*input_line_pointer == '{')
+ input_line_pointer++;
- if ((rd = reg_required_here (&str, 16)) == FAIL)
+ do
{
- inst.error = BAD_ARGS;
- return;
- }
+ reg = arm_reg_parse (&input_line_pointer, REG_TYPE_MMXWCG);
- if (rd == REG_PC)
- {
- inst.error = BAD_PC;
- return;
- }
+ if (reg == FAIL)
+ {
+ as_bad (_(reg_expected_msgs[REG_TYPE_MMXWCG]));
+ goto error;
+ }
- if (skip_past_comma (&str) == FAIL
- || (rm = reg_required_here (&str, 0)) == FAIL)
- {
- inst.error = BAD_ARGS;
- return;
- }
+ reg -= 8;
+ if (mask >> reg)
+ as_tsktsk (_("register list not in ascending order"));
+ mask |= 1 << reg;
- if (rm == REG_PC)
- {
- inst.error = BAD_PC;
- return;
+ if (*input_line_pointer == '-')
+ {
+ input_line_pointer++;
+ hi_reg = arm_reg_parse (&input_line_pointer, REG_TYPE_MMXWCG);
+ if (hi_reg == FAIL)
+ {
+ as_bad (_(reg_expected_msgs[REG_TYPE_MMXWCG]));
+ goto error;
+ }
+ else if (reg >= hi_reg)
+ {
+ as_bad (_("bad register range"));
+ goto error;
+ }
+ for (; reg < hi_reg; reg++)
+ mask |= 1 << reg;
+ }
}
+ while (skip_past_comma (&input_line_pointer) != FAIL);
- if (rm == rd)
- as_tsktsk (_("rd and rm should be different in mul"));
+ if (*input_line_pointer == '}')
+ input_line_pointer++;
- if (skip_past_comma (&str) == FAIL
- || (rm = reg_required_here (&str, 8)) == FAIL)
- {
- inst.error = BAD_ARGS;
- return;
- }
+ demand_empty_rest_of_line ();
+
+ /* Generate any deferred opcodes becuuse we're going to be looking at
+ the list. */
+ flush_pending_unwind ();
- if (rm == REG_PC)
+ for (reg = 0; reg < 16; reg++)
{
- inst.error = BAD_PC;
- return;
+ if (mask & (1 << reg))
+ unwind.frame_size += 4;
}
-
- end_of_line (str);
+ op = 0xc700 | mask;
+ add_unwind_opcode (op, 2);
+ return;
+error:
+ ignore_rest_of_line ();
}
+
+/* Parse an unwind_save directive. */
+
static void
-do_mlas (char * str, bfd_boolean is_mls)
+s_arm_unwind_save (int ignored ATTRIBUTE_UNUSED)
{
- int rd, rm;
+ char *peek;
+ struct reg_entry *reg;
+ bfd_boolean had_brace = FALSE;
- /* Only one format "rd, rm, rs, rn". */
- skip_whitespace (str);
+ /* Figure out what sort of save we have. */
+ peek = input_line_pointer;
- if ((rd = reg_required_here (&str, 16)) == FAIL)
+ if (*peek == '{')
{
- inst.error = BAD_ARGS;
- return;
+ had_brace = TRUE;
+ peek++;
}
- if (rd == REG_PC)
- {
- inst.error = BAD_PC;
- return;
- }
+ reg = arm_reg_parse_multi (&peek);
- if (skip_past_comma (&str) == FAIL
- || (rm = reg_required_here (&str, 0)) == FAIL)
+ if (!reg)
{
- inst.error = BAD_ARGS;
+ as_bad (_("register expected"));
+ ignore_rest_of_line ();
return;
}
- if (rm == REG_PC)
+ switch (reg->type)
{
- inst.error = BAD_PC;
+ case REG_TYPE_FN:
+ if (had_brace)
+ {
+ as_bad (_("FPA .unwind_save does not take a register list"));
+ ignore_rest_of_line ();
+ return;
+ }
+ s_arm_unwind_save_fpa (reg->number);
return;
+
+ case REG_TYPE_RN: s_arm_unwind_save_core (); return;
+ case REG_TYPE_VFD: s_arm_unwind_save_vfp (); return;
+ case REG_TYPE_MMXWR: s_arm_unwind_save_mmxwr (); return;
+ case REG_TYPE_MMXWCG: s_arm_unwind_save_mmxwcg (); return;
+
+ default:
+ as_bad (_(".unwind_save does not support this kind of register"));
+ ignore_rest_of_line ();
}
+}
- /* This restriction does not apply to mls (nor to mla in v6, but
- that's hard to detect at present). */
- if (rm == rd && !is_mls)
- as_tsktsk (_("rd and rm should be different in mla"));
- if (skip_past_comma (&str) == FAIL
- || (rd = reg_required_here (&str, 8)) == FAIL
- || skip_past_comma (&str) == FAIL
- || (rm = reg_required_here (&str, 12)) == FAIL)
+/* Parse an unwind_movsp directive. */
+
+static void
+s_arm_unwind_movsp (int ignored ATTRIBUTE_UNUSED)
+{
+ int reg;
+ valueT op;
+
+ reg = arm_reg_parse (&input_line_pointer, REG_TYPE_RN);
+ if (reg == FAIL)
{
- inst.error = BAD_ARGS;
+ as_bad (_(reg_expected_msgs[REG_TYPE_RN]));
+ ignore_rest_of_line ();
return;
}
+ demand_empty_rest_of_line ();
- if (rd == REG_PC || rm == REG_PC)
+ if (reg == REG_SP || reg == REG_PC)
{
- inst.error = BAD_PC;
+ as_bad (_("SP and PC not permitted in .unwind_movsp directive"));
return;
}
- end_of_line (str);
-}
+ if (unwind.fp_reg != REG_SP)
+ as_bad (_("unexpected .unwind_movsp directive"));
-static void
-do_mla (char *str)
-{
- do_mlas (str, FALSE);
+ /* Generate opcode to restore the value. */
+ op = 0x90 | reg;
+ add_unwind_opcode (op, 1);
+
+ /* Record the information for later. */
+ unwind.fp_reg = reg;
+ unwind.fp_offset = unwind.frame_size;
+ unwind.sp_restored = 1;
}
+/* Parse an unwind_pad directive. */
+
static void
-do_mls (char *str)
+s_arm_unwind_pad (int ignored ATTRIBUTE_UNUSED)
{
- do_mlas (str, TRUE);
-}
+ int offset;
-/* Expects *str -> the characters "acc0", possibly with leading blanks.
- Advances *str to the next non-alphanumeric.
- Returns 0, or else FAIL (in which case sets inst.error).
+ if (immediate_for_directive (&offset) == FAIL)
+ return;
- (In a future XScale, there may be accumulators other than zero.
- At that time this routine and its callers can be upgraded to suit.) */
+ if (offset & 3)
+ {
+ as_bad (_("stack increment must be multiple of 4"));
+ ignore_rest_of_line ();
+ return;
+ }
-static int
-accum0_required_here (char ** str)
+ /* Don't generate any opcodes, just record the details for later. */
+ unwind.frame_size += offset;
+ unwind.pending_offset += offset;
+
+ demand_empty_rest_of_line ();
+}
+
+/* Parse an unwind_setfp directive. */
+
+static void
+s_arm_unwind_setfp (int ignored ATTRIBUTE_UNUSED)
{
- static char buff [128]; /* Note the address is taken. Hence, static. */
- char * p = * str;
- char c;
- int result = 0; /* The accum number. */
+ int sp_reg;
+ int fp_reg;
+ int offset;
+
+ fp_reg = arm_reg_parse (&input_line_pointer, REG_TYPE_RN);
+ if (skip_past_comma (&input_line_pointer) == FAIL)
+ sp_reg = FAIL;
+ else
+ sp_reg = arm_reg_parse (&input_line_pointer, REG_TYPE_RN);
- skip_whitespace (p);
+ if (fp_reg == FAIL || sp_reg == FAIL)
+ {
+ as_bad (_("expected <reg>, <reg>"));
+ ignore_rest_of_line ();
+ return;
+ }
- *str = p; /* Advance caller's string pointer too. */
- c = *p++;
- while (ISALNUM (c))
- c = *p++;
+ /* Optional constant. */
+ if (skip_past_comma (&input_line_pointer) != FAIL)
+ {
+ if (immediate_for_directive (&offset) == FAIL)
+ return;
+ }
+ else
+ offset = 0;
- *--p = 0; /* Aap nul into input buffer at non-alnum. */
+ demand_empty_rest_of_line ();
- if (! ( streq (*str, "acc0") || streq (*str, "ACC0")))
+ if (sp_reg != 13 && sp_reg != unwind.fp_reg)
{
- sprintf (buff, _("acc0 expected, not '%.100s'"), *str);
- inst.error = buff;
- result = FAIL;
+ as_bad (_("register must be either sp or set by a previous"
+ "unwind_movsp directive"));
+ return;
}
- *p = c; /* Unzap. */
- *str = p; /* Caller's string pointer to after match. */
- return result;
+ /* Don't generate any opcodes, just record the information for later. */
+ unwind.fp_reg = fp_reg;
+ unwind.fp_used = 1;
+ if (sp_reg == 13)
+ unwind.fp_offset = unwind.frame_size - offset;
+ else
+ unwind.fp_offset -= offset;
}
-static int
-ldst_extend_v4 (char ** str)
+/* Parse an unwind_raw directive. */
+
+static void
+s_arm_unwind_raw (int ignored ATTRIBUTE_UNUSED)
{
- int add = INDEX_UP;
+ expressionS exp;
+ /* This is an arbitary limit. */
+ unsigned char op[16];
+ int count;
- switch (**str)
+ expression (&exp);
+ if (exp.X_op == O_constant
+ && skip_past_comma (&input_line_pointer) != FAIL)
{
- case '#':
- case '$':
- (*str)++;
- if (my_get_expression (& inst.reloc.exp, str))
- return FAIL;
-
- if (inst.reloc.exp.X_op == O_constant)
- {
- int value = inst.reloc.exp.X_add_number;
+ unwind.frame_size += exp.X_add_number;
+ expression (&exp);
+ }
+ else
+ exp.X_op = O_illegal;
- if (value < -255 || value > 255)
- {
- inst.error = _("address offset too large");
- return FAIL;
- }
+ if (exp.X_op != O_constant)
+ {
+ as_bad (_("expected <offset>, <opcode>"));
+ ignore_rest_of_line ();
+ return;
+ }
- if (value < 0)
- {
- value = -value;
- add = 0;
- }
+ count = 0;
- /* Halfword and signextension instructions have the
- immediate value split across bits 11..8 and bits 3..0. */
- inst.instruction |= (add | HWOFFSET_IMM
- | ((value >> 4) << 8) | (value & 0xF));
+ /* Parse the opcode. */
+ for (;;)
+ {
+ if (count >= 16)
+ {
+ as_bad (_("unwind opcode too long"));
+ ignore_rest_of_line ();
}
- else
+ if (exp.X_op != O_constant || exp.X_add_number & ~0xff)
{
- inst.instruction |= HWOFFSET_IMM;
- inst.reloc.type = BFD_RELOC_ARM_OFFSET_IMM8;
- inst.reloc.pc_rel = 0;
+ as_bad (_("invalid unwind opcode"));
+ ignore_rest_of_line ();
+ return;
}
- return SUCCESS;
+ op[count++] = exp.X_add_number;
- case '-':
- add = 0;
- /* Fall through. */
+ /* Parse the next byte. */
+ if (skip_past_comma (&input_line_pointer) == FAIL)
+ break;
- case '+':
- (*str)++;
- /* Fall through. */
+ expression (&exp);
+ }
- default:
- if (reg_required_here (str, 0) == FAIL)
- return FAIL;
+ /* Add the opcode bytes in reverse order. */
+ while (count--)
+ add_unwind_opcode (op[count], 1);
- inst.instruction |= add;
- return SUCCESS;
- }
+ demand_empty_rest_of_line ();
}
+#endif /* OBJ_ELF */
-/* Expects **str -> after a comma. May be leading blanks.
- Advances *str, recognizing a load mode, and setting inst.instruction.
- Returns rn, or else FAIL (in which case may set inst.error
- and not advance str)
-
- Note: doesn't know Rd, so no err checks that require such knowledge. */
+/* This table describes all the machine specific pseudo-ops the assembler
+ has to support. The fields are:
+ pseudo-op name without dot
+ function to call to execute this pseudo-op
+ Integer arg to pass to the function. */
-static int
-ld_mode_required_here (char ** string)
+const pseudo_typeS md_pseudo_table[] =
{
- char * str = * string;
- int rn;
- int pre_inc = 0;
+ /* Never called because '.req' does not start a line. */
+ { "req", s_req, 0 },
+ { "unreq", s_unreq, 0 },
+ { "bss", s_bss, 0 },
+ { "align", s_align, 0 },
+ { "arm", s_arm, 0 },
+ { "thumb", s_thumb, 0 },
+ { "code", s_code, 0 },
+ { "force_thumb", s_force_thumb, 0 },
+ { "thumb_func", s_thumb_func, 0 },
+ { "thumb_set", s_thumb_set, 0 },
+ { "even", s_even, 0 },
+ { "ltorg", s_ltorg, 0 },
+ { "pool", s_ltorg, 0 },
+ { "syntax", s_syntax, 0 },
+#ifdef OBJ_ELF
+ { "word", s_arm_elf_cons, 4 },
+ { "long", s_arm_elf_cons, 4 },
+ { "rel31", s_arm_rel31, 0 },
+ { "fnstart", s_arm_unwind_fnstart, 0 },
+ { "fnend", s_arm_unwind_fnend, 0 },
+ { "cantunwind", s_arm_unwind_cantunwind, 0 },
+ { "personality", s_arm_unwind_personality, 0 },
+ { "personalityindex", s_arm_unwind_personalityindex, 0 },
+ { "handlerdata", s_arm_unwind_handlerdata, 0 },
+ { "save", s_arm_unwind_save, 0 },
+ { "movsp", s_arm_unwind_movsp, 0 },
+ { "pad", s_arm_unwind_pad, 0 },
+ { "setfp", s_arm_unwind_setfp, 0 },
+ { "unwind_raw", s_arm_unwind_raw, 0 },
+#else
+ { "word", cons, 4},
+#endif
+ { "extend", float_cons, 'x' },
+ { "ldouble", float_cons, 'x' },
+ { "packed", float_cons, 'p' },
+ { 0, 0, 0 }
+};
+\f
+/* Parser functions used exclusively in instruction operands. */
- skip_whitespace (str);
+/* Generic immediate-value read function for use in insn parsing.
+ STR points to the beginning of the immediate (the leading #);
+ VAL receives the value; if the value is outside [MIN, MAX]
+ issue an error. PREFIX_OPT is true if the immediate prefix is
+ optional. */
- if (* str == '[')
+static int
+parse_immediate (char **str, int *val, int min, int max,
+ bfd_boolean prefix_opt)
+{
+ expressionS exp;
+ my_get_expression (&exp, str, prefix_opt ? GE_OPT_PREFIX : GE_IMM_PREFIX);
+ if (exp.X_op != O_constant)
{
- str++;
+ inst.error = _("constant expression required");
+ return FAIL;
+ }
- skip_whitespace (str);
+ if (exp.X_add_number < min || exp.X_add_number > max)
+ {
+ inst.error = _("immediate value out of range");
+ return FAIL;
+ }
- if ((rn = reg_required_here (& str, 16)) == FAIL)
- return FAIL;
+ *val = exp.X_add_number;
+ return SUCCESS;
+}
- skip_whitespace (str);
+/* Returns the pseudo-register number of an FPA immediate constant,
+ or FAIL if there isn't a valid constant here. */
- if (* str == ']')
- {
- str ++;
-
- if (skip_past_comma (& str) == SUCCESS)
- {
- /* [Rn],... (post inc) */
- if (ldst_extend_v4 (&str) == FAIL)
- return FAIL;
- }
- else /* [Rn] */
- {
- skip_whitespace (str);
+static int
+parse_fpa_immediate (char ** str)
+{
+ LITTLENUM_TYPE words[MAX_LITTLENUMS];
+ char * save_in;
+ expressionS exp;
+ int i;
+ int j;
- if (* str == '!')
- {
- str ++;
- inst.instruction |= WRITE_BACK;
- }
+ /* First try and match exact strings, this is to guarantee
+ that some formats will work even for cross assembly. */
- inst.instruction |= INDEX_UP | HWOFFSET_IMM;
- pre_inc = 1;
- }
- }
- else /* [Rn,...] */
+ for (i = 0; fp_const[i]; i++)
+ {
+ if (strncmp (*str, fp_const[i], strlen (fp_const[i])) == 0)
{
- if (skip_past_comma (& str) == FAIL)
- {
- inst.error = _("pre-indexed expression expected");
- return FAIL;
- }
+ char *start = *str;
- pre_inc = 1;
+ *str += strlen (fp_const[i]);
+ if (is_end_of_line[(unsigned char) **str])
+ return i + 8;
+ *str = start;
+ }
+ }
- if (ldst_extend_v4 (&str) == FAIL)
- return FAIL;
+ /* Just because we didn't get a match doesn't mean that the constant
+ isn't valid, just that it is in a format that we don't
+ automatically recognize. Try parsing it with the standard
+ expression routines. */
- skip_whitespace (str);
+ memset (words, 0, MAX_LITTLENUMS * sizeof (LITTLENUM_TYPE));
- if (* str ++ != ']')
+ /* Look for a raw floating point number. */
+ if ((save_in = atof_ieee (*str, 'x', words)) != NULL
+ && is_end_of_line[(unsigned char) *save_in])
+ {
+ for (i = 0; i < NUM_FLOAT_VALS; i++)
+ {
+ for (j = 0; j < MAX_LITTLENUMS; j++)
{
- inst.error = _("missing ]");
- return FAIL;
+ if (words[j] != fp_values[i][j])
+ break;
}
- skip_whitespace (str);
-
- if (* str == '!')
+ if (j == MAX_LITTLENUMS)
{
- str ++;
- inst.instruction |= WRITE_BACK;
+ *str = save_in;
+ return i + 8;
}
}
}
- else if (* str == '=') /* ldr's "r,=label" syntax */
- /* We should never reach here, because <text> = <expression> is
- caught gas/read.c read_a_source_file() as a .set operation. */
- return FAIL;
- else /* PC +- 8 bit immediate offset. */
- {
- if (my_get_expression (& inst.reloc.exp, & str))
- return FAIL;
- inst.instruction |= HWOFFSET_IMM; /* The I bit. */
- inst.reloc.type = BFD_RELOC_ARM_OFFSET_IMM8;
- inst.reloc.exp.X_add_number -= 8; /* PC rel adjust. */
- inst.reloc.pc_rel = 1;
- inst.instruction |= (REG_PC << 16);
+ /* Try and parse a more complex expression, this will probably fail
+ unless the code uses a floating point prefix (eg "0f"). */
+ save_in = input_line_pointer;
+ input_line_pointer = *str;
+ if (expression (&exp) == absolute_section
+ && exp.X_op == O_big
+ && exp.X_add_number < 0)
+ {
+ /* FIXME: 5 = X_PRECISION, should be #define'd where we can use it.
+ Ditto for 15. */
+ if (gen_to_words (words, 5, (long) 15) == 0)
+ {
+ for (i = 0; i < NUM_FLOAT_VALS; i++)
+ {
+ for (j = 0; j < MAX_LITTLENUMS; j++)
+ {
+ if (words[j] != fp_values[i][j])
+ break;
+ }
- rn = REG_PC;
- pre_inc = 1;
+ if (j == MAX_LITTLENUMS)
+ {
+ *str = input_line_pointer;
+ input_line_pointer = save_in;
+ return i + 8;
+ }
+ }
+ }
}
- inst.instruction |= (pre_inc ? PRE_INDEX : 0);
- * string = str;
-
- return rn;
+ *str = input_line_pointer;
+ input_line_pointer = save_in;
+ inst.error = _("invalid FPA immediate expression");
+ return FAIL;
}
-/* ARM V5E (El Segundo) signed-multiply-accumulate (argument parse)
- SMLAxy{cond} Rd,Rm,Rs,Rn
- SMLAWy{cond} Rd,Rm,Rs,Rn
- Error if any register is R15. */
-
-static void
-do_smla (char * str)
+/* Shift operands. */
+enum shift_kind
{
- int rd, rm, rs, rn;
+ SHIFT_LSL, SHIFT_LSR, SHIFT_ASR, SHIFT_ROR, SHIFT_RRX
+};
- skip_whitespace (str);
+struct asm_shift_name
+{
+ const char *name;
+ enum shift_kind kind;
+};
- if ((rd = reg_required_here (& str, 16)) == FAIL
- || skip_past_comma (& str) == FAIL
- || (rm = reg_required_here (& str, 0)) == FAIL
- || skip_past_comma (& str) == FAIL
- || (rs = reg_required_here (& str, 8)) == FAIL
- || skip_past_comma (& str) == FAIL
- || (rn = reg_required_here (& str, 12)) == FAIL)
- inst.error = BAD_ARGS;
+/* Third argument to parse_shift. */
+enum parse_shift_mode
+{
+ NO_SHIFT_RESTRICT, /* Any kind of shift is accepted. */
+ SHIFT_IMMEDIATE, /* Shift operand must be an immediate. */
+ SHIFT_LSL_OR_ASR_IMMEDIATE, /* Shift must be LSL or ASR immediate. */
+ SHIFT_ASR_IMMEDIATE, /* Shift must be ASR immediate. */
+ SHIFT_LSL_IMMEDIATE, /* Shift must be LSL immediate. */
+};
- else if (rd == REG_PC || rm == REG_PC || rs == REG_PC || rn == REG_PC)
- inst.error = BAD_PC;
+/* Parse a <shift> specifier on an ARM data processing instruction.
+ This has three forms:
- else
- end_of_line (str);
-}
+ (LSL|LSR|ASL|ASR|ROR) Rs
+ (LSL|LSR|ASL|ASR|ROR) #imm
+ RRX
-/* ARM V5E (El Segundo) signed-multiply-accumulate-long (argument parse)
- SMLALxy{cond} Rdlo,Rdhi,Rm,Rs
- Error if any register is R15.
- Warning if Rdlo == Rdhi. */
+ Note that ASL is assimilated to LSL in the instruction encoding, and
+ RRX to ROR #0 (which cannot be written as such). */
-static void
-do_smlal (char * str)
+static int
+parse_shift (char **str, int i, enum parse_shift_mode mode)
{
- int rdlo, rdhi, rm, rs;
+ const struct asm_shift_name *shift_name;
+ enum shift_kind shift;
+ char *s = *str;
+ char *p = s;
+ int reg;
- skip_whitespace (str);
+ for (p = *str; ISALPHA (*p); p++)
+ ;
- if ((rdlo = reg_required_here (& str, 12)) == FAIL
- || skip_past_comma (& str) == FAIL
- || (rdhi = reg_required_here (& str, 16)) == FAIL
- || skip_past_comma (& str) == FAIL
- || (rm = reg_required_here (& str, 0)) == FAIL
- || skip_past_comma (& str) == FAIL
- || (rs = reg_required_here (& str, 8)) == FAIL)
+ if (p == *str)
{
- inst.error = BAD_ARGS;
- return;
+ inst.error = _("shift expression expected");
+ return FAIL;
}
- if (rdlo == REG_PC || rdhi == REG_PC || rm == REG_PC || rs == REG_PC)
+ shift_name = hash_find_n (arm_shift_hsh, *str, p - *str);
+
+ if (shift_name == NULL)
{
- inst.error = BAD_PC;
- return;
+ inst.error = _("shift expression expected");
+ return FAIL;
}
- if (rdlo == rdhi)
- as_tsktsk (_("rdhi and rdlo must be different"));
+ shift = shift_name->kind;
- end_of_line (str);
-}
+ switch (mode)
+ {
+ case NO_SHIFT_RESTRICT:
+ case SHIFT_IMMEDIATE: break;
-/* ARM V5E (El Segundo) signed-multiply (argument parse)
- SMULxy{cond} Rd,Rm,Rs
- Error if any register is R15. */
+ case SHIFT_LSL_OR_ASR_IMMEDIATE:
+ if (shift != SHIFT_LSL && shift != SHIFT_ASR)
+ {
+ inst.error = _("'LSL' or 'ASR' required");
+ return FAIL;
+ }
+ break;
-static void
-do_smul (char * str)
-{
- int rd, rm, rs;
+ case SHIFT_LSL_IMMEDIATE:
+ if (shift != SHIFT_LSL)
+ {
+ inst.error = _("'LSL' required");
+ return FAIL;
+ }
+ break;
- skip_whitespace (str);
+ case SHIFT_ASR_IMMEDIATE:
+ if (shift != SHIFT_ASR)
+ {
+ inst.error = _("'ASR' required");
+ return FAIL;
+ }
+ break;
- if ((rd = reg_required_here (& str, 16)) == FAIL
- || skip_past_comma (& str) == FAIL
- || (rm = reg_required_here (& str, 0)) == FAIL
- || skip_past_comma (& str) == FAIL
- || (rs = reg_required_here (& str, 8)) == FAIL)
- inst.error = BAD_ARGS;
+ default: abort ();
+ }
- else if (rd == REG_PC || rm == REG_PC || rs == REG_PC)
- inst.error = BAD_PC;
+ if (shift != SHIFT_RRX)
+ {
+ /* Whitespace can appear here if the next thing is a bare digit. */
+ skip_whitespace (p);
- else
- end_of_line (str);
+ if (mode == NO_SHIFT_RESTRICT
+ && (reg = arm_reg_parse (&p, REG_TYPE_RN)) != FAIL)
+ {
+ inst.operands[i].imm = reg;
+ inst.operands[i].immisreg = 1;
+ }
+ else if (my_get_expression (&inst.reloc.exp, &p, GE_IMM_PREFIX))
+ return FAIL;
+ }
+ inst.operands[i].shift_kind = shift;
+ inst.operands[i].shifted = 1;
+ *str = p;
+ return SUCCESS;
}
-/* ARM V5E (El Segundo) saturating-add/subtract (argument parse)
- Q[D]{ADD,SUB}{cond} Rd,Rm,Rn
- Error if any register is R15. */
-
-static void
-do_qadd (char * str)
-{
- int rd, rm, rn;
-
- skip_whitespace (str);
-
- if ((rd = reg_required_here (& str, 12)) == FAIL
- || skip_past_comma (& str) == FAIL
- || (rm = reg_required_here (& str, 0)) == FAIL
- || skip_past_comma (& str) == FAIL
- || (rn = reg_required_here (& str, 16)) == FAIL)
- inst.error = BAD_ARGS;
+/* Parse a <shifter_operand> for an ARM data processing instruction:
- else if (rd == REG_PC || rm == REG_PC || rn == REG_PC)
- inst.error = BAD_PC;
+ #<immediate>
+ #<immediate>, <rotate>
+ <Rm>
+ <Rm>, <shift>
- else
- end_of_line (str);
-}
+ where <shift> is defined by parse_shift above, and <rotate> is a
+ multiple of 2 between 0 and 30. Validation of immediate operands
+ is deferred to md_apply_fix3. */
-/* ARM V5E (el Segundo)
- MCRRcc <coproc>, <opcode>, <Rd>, <Rn>, <CRm>.
- MRRCcc <coproc>, <opcode>, <Rd>, <Rn>, <CRm>.
-
- These are equivalent to the XScale instructions MAR and MRA,
- respectively, when coproc == 0, opcode == 0, and CRm == 0.
+static int
+parse_shifter_operand (char **str, int i)
+{
+ int value;
+ expressionS expr;
- Result unpredicatable if Rd or Rn is R15. */
+ if ((value = arm_reg_parse (str, REG_TYPE_RN)) != FAIL)
+ {
+ inst.operands[i].reg = value;
+ inst.operands[i].isreg = 1;
-static void
-do_co_reg2c (char * str)
-{
- int rd, rn;
+ /* parse_shift will override this if appropriate */
+ inst.reloc.exp.X_op = O_constant;
+ inst.reloc.exp.X_add_number = 0;
- skip_whitespace (str);
+ if (skip_past_comma (str) == FAIL)
+ return SUCCESS;
- if (co_proc_number (& str) == FAIL)
- {
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
+ /* Shift operation on register. */
+ return parse_shift (str, i, NO_SHIFT_RESTRICT);
}
- if (skip_past_comma (& str) == FAIL
- || cp_opc_expr (& str, 4, 4) == FAIL)
- {
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
- }
+ if (my_get_expression (&inst.reloc.exp, str, GE_IMM_PREFIX))
+ return FAIL;
- if (skip_past_comma (& str) == FAIL
- || (rd = reg_required_here (& str, 12)) == FAIL)
+ if (skip_past_comma (str) == SUCCESS)
{
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
- }
+ /* #x, y -- ie explicit rotation by Y. */
+ if (my_get_expression (&expr, str, GE_NO_PREFIX))
+ return FAIL;
- if (skip_past_comma (& str) == FAIL
- || (rn = reg_required_here (& str, 16)) == FAIL)
- {
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
- }
+ if (expr.X_op != O_constant || inst.reloc.exp.X_op != O_constant)
+ {
+ inst.error = _("constant expression expected");
+ return FAIL;
+ }
- /* Unpredictable result if rd or rn is R15. */
- if (rd == REG_PC || rn == REG_PC)
- as_tsktsk
- (_("Warning: instruction unpredictable when using r15"));
+ value = expr.X_add_number;
+ if (value < 0 || value > 30 || value % 2 != 0)
+ {
+ inst.error = _("invalid rotation");
+ return FAIL;
+ }
+ if (inst.reloc.exp.X_add_number < 0 || inst.reloc.exp.X_add_number > 255)
+ {
+ inst.error = _("invalid constant");
+ return FAIL;
+ }
- if (skip_past_comma (& str) == FAIL
- || cp_reg_required_here (& str, 0) == FAIL)
- {
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
+ /* Convert to decoded value. md_apply_fix3 will put it back. */
+ inst.reloc.exp.X_add_number
+ = (((inst.reloc.exp.X_add_number << (32 - value))
+ | (inst.reloc.exp.X_add_number >> value)) & 0xffffffff);
}
- end_of_line (str);
+ inst.reloc.type = BFD_RELOC_ARM_IMMEDIATE;
+ inst.reloc.pc_rel = 0;
+ return SUCCESS;
}
-/* ARM V5 count-leading-zeroes instruction (argument parse)
- CLZ{<cond>} <Rd>, <Rm>
- Condition defaults to COND_ALWAYS.
- Error if Rd or Rm are R15. */
+/* Parse all forms of an ARM address expression. Information is written
+ to inst.operands[i] and/or inst.reloc.
-static void
-do_clz (char * str)
-{
- int rd, rm;
+ Preindexed addressing (.preind=1):
- skip_whitespace (str);
+ [Rn, #offset] .reg=Rn .reloc.exp=offset
+ [Rn, +/-Rm] .reg=Rn .imm=Rm .immisreg=1 .negative=0/1
+ [Rn, +/-Rm, shift] .reg=Rn .imm=Rm .immisreg=1 .negative=0/1
+ .shift_kind=shift .reloc.exp=shift_imm
- if (((rd = reg_required_here (& str, 12)) == FAIL)
- || (skip_past_comma (& str) == FAIL)
- || ((rm = reg_required_here (& str, 0)) == FAIL))
- inst.error = BAD_ARGS;
+ These three may have a trailing ! which causes .writeback to be set also.
- else if (rd == REG_PC || rm == REG_PC )
- inst.error = BAD_PC;
+ Postindexed addressing (.postind=1, .writeback=1):
- else
- end_of_line (str);
-}
+ [Rn], #offset .reg=Rn .reloc.exp=offset
+ [Rn], +/-Rm .reg=Rn .imm=Rm .immisreg=1 .negative=0/1
+ [Rn], +/-Rm, shift .reg=Rn .imm=Rm .immisreg=1 .negative=0/1
+ .shift_kind=shift .reloc.exp=shift_imm
-/* ARM V5 (argument parse)
- LDC2{L} <coproc>, <CRd>, <addressing mode>
- STC2{L} <coproc>, <CRd>, <addressing mode>
- Instruction is not conditional, and has 0xf in the condition field.
- Otherwise, it's the same as LDC/STC. */
+ Unindexed addressing (.preind=0, .postind=0):
-static void
-do_lstc2 (char * str)
-{
- skip_whitespace (str);
+ [Rn], {option} .reg=Rn .imm=option .immisreg=0
- if (co_proc_number (& str) == FAIL)
- {
- if (!inst.error)
- inst.error = BAD_ARGS;
- }
- else if (skip_past_comma (& str) == FAIL
- || cp_reg_required_here (& str, 12) == FAIL)
- {
- if (!inst.error)
- inst.error = BAD_ARGS;
- }
- else if (skip_past_comma (& str) == FAIL
- || cp_address_required_here (&str, CP_WB_OK) == FAIL)
- {
- if (! inst.error)
- inst.error = BAD_ARGS;
- }
- else
- end_of_line (str);
-}
+ Other:
-/* ARM V5 (argument parse)
- CDP2 <coproc>, <opcode_1>, <CRd>, <CRn>, <CRm>, <opcode_2>
- Instruction is not conditional, and has 0xf in the condition field.
- Otherwise, it's the same as CDP. */
+ [Rn]{!} shorthand for [Rn,#0]{!}
+ =immediate .isreg=0 .reloc.exp=immediate
+ label .reg=PC .reloc.pc_rel=1 .reloc.exp=label
-static void
-do_cdp2 (char * str)
+ It is the caller's responsibility to check for addressing modes not
+ supported by the instruction, and to set inst.reloc.type. */
+
+static int
+parse_address (char **str, int i)
{
- skip_whitespace (str);
+ char *p = *str;
+ int reg;
- if (co_proc_number (& str) == FAIL)
+ if (skip_past_char (&p, '[') == FAIL)
{
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
- }
+ if (skip_past_char (&p, '=') == FAIL)
+ {
+ /* bare address - translate to PC-relative offset */
+ inst.reloc.pc_rel = 1;
+ inst.operands[i].reg = REG_PC;
+ inst.operands[i].isreg = 1;
+ inst.operands[i].preind = 1;
+ }
+ /* else a load-constant pseudo op, no special treatment needed here */
- if (skip_past_comma (& str) == FAIL
- || cp_opc_expr (& str, 20,4) == FAIL)
- {
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
- }
+ if (my_get_expression (&inst.reloc.exp, &p, GE_NO_PREFIX))
+ return FAIL;
- if (skip_past_comma (& str) == FAIL
- || cp_reg_required_here (& str, 12) == FAIL)
- {
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
+ *str = p;
+ return SUCCESS;
}
- if (skip_past_comma (& str) == FAIL
- || cp_reg_required_here (& str, 16) == FAIL)
+ if ((reg = arm_reg_parse (&p, REG_TYPE_RN)) == FAIL)
{
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
+ inst.error = _(reg_expected_msgs[REG_TYPE_RN]);
+ return FAIL;
}
+ inst.operands[i].reg = reg;
+ inst.operands[i].isreg = 1;
- if (skip_past_comma (& str) == FAIL
- || cp_reg_required_here (& str, 0) == FAIL)
+ if (skip_past_comma (&p) == SUCCESS)
{
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
- }
+ inst.operands[i].preind = 1;
- if (skip_past_comma (& str) == SUCCESS)
- {
- if (cp_opc_expr (& str, 5, 3) == FAIL)
+ if (*p == '+') p++;
+ else if (*p == '-') p++, inst.operands[i].negative = 1;
+
+ if ((reg = arm_reg_parse (&p, REG_TYPE_RN)) != FAIL)
{
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
+ inst.operands[i].imm = reg;
+ inst.operands[i].immisreg = 1;
+
+ if (skip_past_comma (&p) == SUCCESS)
+ if (parse_shift (&p, i, SHIFT_IMMEDIATE) == FAIL)
+ return FAIL;
+ }
+ else
+ {
+ if (inst.operands[i].negative)
+ {
+ inst.operands[i].negative = 0;
+ p--;
+ }
+ if (my_get_expression (&inst.reloc.exp, &p, GE_IMM_PREFIX))
+ return FAIL;
}
}
- end_of_line (str);
-}
-
-/* ARM V5 (argument parse)
- MCR2 <coproc>, <opcode_1>, <Rd>, <CRn>, <CRm>, <opcode_2>
- MRC2 <coproc>, <opcode_1>, <Rd>, <CRn>, <CRm>, <opcode_2>
- Instruction is not conditional, and has 0xf in the condition field.
- Otherwise, it's the same as MCR/MRC. */
-
-static void
-do_co_reg2 (char * str)
-{
- skip_whitespace (str);
-
- if (co_proc_number (& str) == FAIL)
+ if (skip_past_char (&p, ']') == FAIL)
{
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
+ inst.error = _("']' expected");
+ return FAIL;
}
- if (skip_past_comma (& str) == FAIL
- || cp_opc_expr (& str, 21, 3) == FAIL)
- {
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
- }
+ if (skip_past_char (&p, '!') == SUCCESS)
+ inst.operands[i].writeback = 1;
- if (skip_past_comma (& str) == FAIL
- || reg_required_here (& str, 12) == FAIL)
+ else if (skip_past_comma (&p) == SUCCESS)
{
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
- }
+ if (skip_past_char (&p, '{') == SUCCESS)
+ {
+ /* [Rn], {expr} - unindexed, with option */
+ if (parse_immediate (&p, &inst.operands[i].imm,
+ 0, 255, TRUE) == FAIL)
+ return FAIL;
- if (skip_past_comma (& str) == FAIL
- || cp_reg_required_here (& str, 16) == FAIL)
- {
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
- }
-
- if (skip_past_comma (& str) == FAIL
- || cp_reg_required_here (& str, 0) == FAIL)
- {
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
- }
-
- if (skip_past_comma (& str) == SUCCESS)
- {
- if (cp_opc_expr (& str, 5, 3) == FAIL)
- {
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
+ if (skip_past_char (&p, '}') == FAIL)
+ {
+ inst.error = _("'}' expected at end of 'option' field");
+ return FAIL;
+ }
+ if (inst.operands[i].preind)
+ {
+ inst.error = _("cannot combine index with option");
+ return FAIL;
+ }
+ *str = p;
+ return SUCCESS;
}
- }
+ else
+ {
+ inst.operands[i].postind = 1;
+ inst.operands[i].writeback = 1;
- end_of_line (str);
-}
+ if (inst.operands[i].preind)
+ {
+ inst.error = _("cannot combine pre- and post-indexing");
+ return FAIL;
+ }
-static void
-do_bx (char * str)
-{
- int reg;
+ if (*p == '+') p++;
+ else if (*p == '-') p++, inst.operands[i].negative = 1;
- skip_whitespace (str);
+ if ((reg = arm_reg_parse (&p, REG_TYPE_RN)) != FAIL)
+ {
+ inst.operands[i].imm = reg;
+ inst.operands[i].immisreg = 1;
- if ((reg = reg_required_here (&str, 0)) == FAIL)
- {
- inst.error = BAD_ARGS;
- return;
+ if (skip_past_comma (&p) == SUCCESS)
+ if (parse_shift (&p, i, SHIFT_IMMEDIATE) == FAIL)
+ return FAIL;
+ }
+ else
+ {
+ if (inst.operands[i].negative)
+ {
+ inst.operands[i].negative = 0;
+ p--;
+ }
+ if (my_get_expression (&inst.reloc.exp, &p, GE_IMM_PREFIX))
+ return FAIL;
+ }
+ }
}
- /* Note - it is not illegal to do a "bx pc". Useless, but not illegal. */
- if (reg == REG_PC)
- as_tsktsk (_("use of r15 in bx in ARM mode is not really useful"));
-
- end_of_line (str);
+ /* If at this point neither .preind nor .postind is set, we have a
+ bare [Rn]{!}, which is shorthand for [Rn,#0]{!}. */
+ if (inst.operands[i].preind == 0 && inst.operands[i].postind == 0)
+ {
+ inst.operands[i].preind = 1;
+ inst.reloc.exp.X_op = O_constant;
+ inst.reloc.exp.X_add_number = 0;
+ }
+ *str = p;
+ return SUCCESS;
}
-/* ARM v5TEJ. Jump to Jazelle code. */
+/* Miscellaneous. */
-static void
-do_bxj (char * str)
+/* Parse a PSR flag operand. The value returned is FAIL on syntax error,
+ or a bitmask suitable to be or-ed into the ARM msr instruction. */
+static int
+parse_psr (char **str)
{
- int reg;
+ char *p;
+ unsigned long psr_field;
- skip_whitespace (str);
+ /* CPSR's and SPSR's can now be lowercase. This is just a convenience
+ feature for ease of use and backwards compatibility. */
+ p = *str;
+ if (*p == 's' || *p == 'S')
+ psr_field = SPSR_BIT;
+ else if (*p == 'c' || *p == 'C')
+ psr_field = 0;
+ else
+ goto error;
- if ((reg = reg_required_here (&str, 0)) == FAIL)
- {
- inst.error = BAD_ARGS;
- return;
- }
+ p++;
+ if (strncasecmp (p, "PSR", 3) != 0)
+ goto error;
+ p += 3;
- /* Note - it is not illegal to do a "bxj pc". Useless, but not illegal. */
- if (reg == REG_PC)
- as_tsktsk (_("use of r15 in bxj is not really useful"));
+ if (*p == '_')
+ {
+ /* A suffix follows. */
+ const struct asm_psr *psr;
+ char *start;
- end_of_line (str);
-}
+ p++;
+ start = p;
-/* ARM V6 umaal (argument parse). */
+ do
+ p++;
+ while (ISALNUM (*p) || *p == '_');
-static void
-do_umaal (char * str)
-{
- int rdlo, rdhi, rm, rs;
+ psr = hash_find_n (arm_psr_hsh, start, p - start);
+ if (!psr)
+ goto error;
- skip_whitespace (str);
- if ((rdlo = reg_required_here (& str, 12)) == FAIL
- || skip_past_comma (& str) == FAIL
- || (rdhi = reg_required_here (& str, 16)) == FAIL
- || skip_past_comma (& str) == FAIL
- || (rm = reg_required_here (& str, 0)) == FAIL
- || skip_past_comma (& str) == FAIL
- || (rs = reg_required_here (& str, 8)) == FAIL)
- {
- inst.error = BAD_ARGS;
- return;
+ psr_field |= psr->field;
}
-
- if (rdlo == REG_PC || rdhi == REG_PC || rm == REG_PC || rs == REG_PC)
+ else
{
- inst.error = BAD_PC;
- return;
+ if (ISALNUM (*p))
+ goto error; /* Garbage after "[CS]PSR". */
+
+ psr_field |= (PSR_c | PSR_f);
}
+ *str = p;
+ return psr_field;
- end_of_line (str);
+ error:
+ inst.error = _("flag for {c}psr instruction expected");
+ return FAIL;
}
-/* ARM V6 strex (argument parse). */
+/* Parse the flags argument to CPSI[ED]. Returns FAIL on error, or a
+ value suitable for splatting into the AIF field of the instruction. */
-static void
-do_strex (char * str)
+static int
+parse_cps_flags (char **str)
{
- int rd, rm, rn;
+ int val = 0;
+ int saw_a_flag = 0;
+ char *s = *str;
- /* Parse Rd, Rm,. */
- skip_whitespace (str);
- if ((rd = reg_required_here (& str, 12)) == FAIL
- || skip_past_comma (& str) == FAIL
- || (rm = reg_required_here (& str, 0)) == FAIL
- || skip_past_comma (& str) == FAIL)
- {
- inst.error = BAD_ARGS;
- return;
- }
- if (rd == REG_PC || rm == REG_PC)
- {
- inst.error = BAD_PC;
- return;
- }
- if (rd == rm)
- {
- inst.error = _("Rd equal to Rm or Rn yields unpredictable results");
- return;
- }
+ for (;;)
+ switch (*s++)
+ {
+ case '\0': case ',':
+ goto done;
- /* Skip past '['. */
- if ((strlen (str) >= 1)
- && strncmp (str, "[", 1) == 0)
- str += 1;
+ case 'a': case 'A': saw_a_flag = 1; val |= 0x4; break;
+ case 'i': case 'I': saw_a_flag = 1; val |= 0x2; break;
+ case 'f': case 'F': saw_a_flag = 1; val |= 0x1; break;
- skip_whitespace (str);
+ default:
+ inst.error = _("unrecognized CPS flag");
+ return FAIL;
+ }
- /* Parse Rn. */
- if ((rn = reg_required_here (& str, 16)) == FAIL)
- {
- inst.error = BAD_ARGS;
- return;
- }
- else if (rn == REG_PC)
- {
- inst.error = BAD_PC;
- return;
- }
- if (rd == rn)
+ done:
+ if (saw_a_flag == 0)
{
- inst.error = _("Rd equal to Rm or Rn yields unpredictable results");
- return;
+ inst.error = _("missing CPS flags");
+ return FAIL;
}
- skip_whitespace (str);
-
- /* Skip past ']'. */
- if ((strlen (str) >= 1)
- && strncmp (str, "]", 1) == 0)
- str += 1;
- end_of_line (str);
+ *str = s - 1;
+ return val;
}
-/* KIND indicates what kind of shifts are accepted. */
+/* Parse an endian specifier ("BE" or "LE", case insensitive);
+ returns 0 for big-endian, 1 for little-endian, FAIL for an error. */
static int
-decode_shift (char ** str, int kind)
+parse_endian_specifier (char **str)
{
- const struct asm_shift_name * shift;
- char * p;
- char c;
-
- skip_whitespace (* str);
-
- for (p = * str; ISALPHA (* p); p ++)
- ;
+ int little_endian;
+ char *s = *str;
- if (p == * str)
+ if (strncasecmp (s, "BE", 2))
+ little_endian = 0;
+ else if (strncasecmp (s, "LE", 2))
+ little_endian = 1;
+ else
{
- inst.error = _("shift expression expected");
+ inst.error = _("valid endian specifiers are be or le");
return FAIL;
}
- c = * p;
- * p = '\0';
- shift = (const struct asm_shift_name *) hash_find (arm_shift_hsh, * str);
- * p = c;
-
- if (shift == NULL)
+ if (ISALNUM (s[2]) || s[2] == '_')
{
- inst.error = _("shift expression expected");
+ inst.error = _("valid endian specifiers are be or le");
return FAIL;
}
- assert (shift->properties->index == shift_properties[shift->properties->index].index);
+ *str = s + 2;
+ return little_endian;
+}
- if (kind == SHIFT_LSL_OR_ASR_IMMEDIATE
- && shift->properties->index != SHIFT_LSL
- && shift->properties->index != SHIFT_ASR)
- {
- inst.error = _("'LSL' or 'ASR' required");
- return FAIL;
- }
- else if (kind == SHIFT_LSL_IMMEDIATE
- && shift->properties->index != SHIFT_LSL)
+/* Parse a rotation specifier: ROR #0, #8, #16, #24. *val receives a
+ value suitable for poking into the rotate field of an sxt or sxta
+ instruction, or FAIL on error. */
+
+static int
+parse_ror (char **str)
+{
+ int rot;
+ char *s = *str;
+
+ if (strncasecmp (s, "ROR", 3) == 0)
+ s += 3;
+ else
{
- inst.error = _("'LSL' required");
+ inst.error = _("missing rotation field after comma");
return FAIL;
}
- else if (kind == SHIFT_ASR_IMMEDIATE
- && shift->properties->index != SHIFT_ASR)
+
+ if (parse_immediate (&s, &rot, 0, 24, FALSE) == FAIL)
+ return FAIL;
+
+ switch (rot)
{
- inst.error = _("'ASR' required");
+ case 0: *str = s; return 0x0;
+ case 8: *str = s; return 0x1;
+ case 16: *str = s; return 0x2;
+ case 24: *str = s; return 0x3;
+
+ default:
+ inst.error = _("rotation can only be 0, 8, 16, or 24");
return FAIL;
}
+}
- if (shift->properties->index == SHIFT_RRX)
- {
- * str = p;
- inst.instruction |= shift->properties->bit_field;
- return SUCCESS;
- }
+/* Parse a conditional code (from conds[] below). The value returned is in the
+ range 0 .. 14, or FAIL. */
+static int
+parse_cond (char **str)
+{
+ char *p, *q;
+ const struct asm_cond *c;
- skip_whitespace (p);
+ p = q = *str;
+ while (ISALPHA (*q))
+ q++;
- if (kind == NO_SHIFT_RESTRICT && reg_required_here (& p, 8) != FAIL)
- {
- inst.instruction |= shift->properties->bit_field | SHIFT_BY_REG;
- * str = p;
- return SUCCESS;
- }
- else if (! is_immediate_prefix (* p))
+ c = hash_find_n (arm_cond_hsh, p, q - p);
+ if (!c)
{
- inst.error = (NO_SHIFT_RESTRICT
- ? _("shift requires register or #expression")
- : _("shift requires #expression"));
- * str = p;
+ inst.error = _("condition required");
return FAIL;
}
- inst.error = NULL;
- p ++;
+ *str = q;
+ return c->value;
+}
+
+/* Matcher codes for parse_operands. */
+enum operand_parse_code
+{
+ OP_stop, /* end of line */
+
+ OP_RR, /* ARM register */
+ OP_RRnpc, /* ARM register, not r15 */
+ OP_RRnpcb, /* ARM register, not r15, in square brackets */
+ OP_RRw, /* ARM register, not r15, optional trailing ! */
+ OP_RCP, /* Coprocessor number */
+ OP_RCN, /* Coprocessor register */
+ OP_RF, /* FPA register */
+ OP_RVS, /* VFP single precision register */
+ OP_RVD, /* VFP double precision register */
+ OP_RVC, /* VFP control register */
+ OP_RMF, /* Maverick F register */
+ OP_RMD, /* Maverick D register */
+ OP_RMFX, /* Maverick FX register */
+ OP_RMDX, /* Maverick DX register */
+ OP_RMAX, /* Maverick AX register */
+ OP_RMDS, /* Maverick DSPSC register */
+ OP_RIWR, /* iWMMXt wR register */
+ OP_RIWC, /* iWMMXt wC register */
+ OP_RIWG, /* iWMMXt wCG register */
+ OP_RXA, /* XScale accumulator register */
+
+ OP_REGLST, /* ARM register list */
+ OP_VRSLST, /* VFP single-precision register list */
+ OP_VRDLST, /* VFP double-precision register list */
+
+ OP_I7, /* immediate value 0 .. 7 */
+ OP_I15, /* 0 .. 15 */
+ OP_I16, /* 1 .. 16 */
+ OP_I31, /* 0 .. 31 */
+ OP_I31w, /* 0 .. 31, optional trailing ! */
+ OP_I32, /* 1 .. 32 */
+ OP_I63s, /* -64 .. 63 */
+ OP_I255, /* 0 .. 255 */
+ OP_Iffff, /* 0 .. 65535 */
+
+ OP_I4b, /* immediate, prefix optional, 1 .. 4 */
+ OP_I7b, /* 0 .. 7 */
+ OP_I15b, /* 0 .. 15 */
+ OP_I31b, /* 0 .. 31 */
+
+ OP_SH, /* shifter operand */
+ OP_ADDR, /* Memory address expression (any mode) */
+ OP_EXP, /* arbitrary expression */
+ OP_EXPi, /* same, with optional immediate prefix */
+ OP_EXPr, /* same, with optional relocation suffix */
+
+ OP_CPSF, /* CPS flags */
+ OP_ENDI, /* Endianness specifier */
+ OP_PSR, /* CPSR/SPSR mask for msr */
+ OP_COND, /* conditional code */
+
+ OP_RRnpc_I0, /* ARM register or literal 0 */
+ OP_RR_EXr, /* ARM register or expression with opt. reloc suff. */
+ OP_RR_EXi, /* ARM register or expression with imm prefix */
+ OP_RF_IF, /* FPA register or immediate */
+ OP_RIWR_RIWC, /* iWMMXt R or C reg */
+
+ /* Optional operands. */
+ OP_oI7b, /* immediate, prefix optional, 0 .. 7 */
+ OP_oI31b, /* 0 .. 31 */
+ OP_oIffffb, /* 0 .. 65535 */
+ OP_oI255c, /* curly-brace enclosed, 0 .. 255 */
+
+ OP_oRR, /* ARM register */
+ OP_oRRnpc, /* ARM register, not the PC */
+ OP_oSHll, /* LSL immediate */
+ OP_oSHar, /* ASR immediate */
+ OP_oSHllar, /* LSL or ASR immediate */
+ OP_oROR, /* ROR 0/8/16/24 */
+
+ OP_FIRST_OPTIONAL = OP_oI7b
+};
- if (my_get_expression (& inst.reloc.exp, & p))
- return FAIL;
+/* Generic instruction operand parser. This does no encoding and no
+ semantic validation; it merely squirrels values away in the inst
+ structure. Returns SUCCESS or FAIL depending on whether the
+ specified grammar matched. */
+static int
+parse_operands (char *str, const char *pattern)
+{
+ unsigned const char *upat = pattern;
+ char *backtrack_pos = 0;
+ const char *backtrack_error = 0;
+ int i, val, backtrack_index = 0;
+
+#define po_char_or_fail(chr) do { \
+ if (skip_past_char (&str, chr) == FAIL) \
+ goto bad_args; \
+} while (0)
+
+#define po_reg_or_fail(regtype) do { \
+ val = arm_reg_parse (&str, regtype); \
+ if (val == FAIL) \
+ { \
+ inst.error = _(reg_expected_msgs[regtype]); \
+ goto failure; \
+ } \
+ inst.operands[i].reg = val; \
+ inst.operands[i].isreg = 1; \
+} while (0)
+
+#define po_reg_or_goto(regtype, label) do { \
+ val = arm_reg_parse (&str, regtype); \
+ if (val == FAIL) \
+ goto label; \
+ \
+ inst.operands[i].reg = val; \
+ inst.operands[i].isreg = 1; \
+} while (0)
+
+#define po_imm_or_fail(min, max, popt) do { \
+ if (parse_immediate (&str, &val, min, max, popt) == FAIL) \
+ goto failure; \
+ inst.operands[i].imm = val; \
+} while (0)
+
+#define po_misc_or_fail(expr) do { \
+ if (expr) \
+ goto failure; \
+} while (0)
+
+ skip_whitespace (str);
+
+ for (i = 0; upat[i] != OP_stop; i++)
+ {
+ if (upat[i] >= OP_FIRST_OPTIONAL)
+ {
+ /* Remember where we are in case we need to backtrack. */
+ assert (!backtrack_pos);
+ backtrack_pos = str;
+ backtrack_error = inst.error;
+ backtrack_index = i;
+ }
+
+ if (i > 0)
+ po_char_or_fail (',');
+
+ switch (upat[i])
+ {
+ /* Registers */
+ case OP_oRRnpc:
+ case OP_RRnpc:
+ case OP_oRR:
+ case OP_RR: po_reg_or_fail (REG_TYPE_RN); break;
+ case OP_RCP: po_reg_or_fail (REG_TYPE_CP); break;
+ case OP_RCN: po_reg_or_fail (REG_TYPE_CN); break;
+ case OP_RF: po_reg_or_fail (REG_TYPE_FN); break;
+ case OP_RVS: po_reg_or_fail (REG_TYPE_VFS); break;
+ case OP_RVD: po_reg_or_fail (REG_TYPE_VFD); break;
+ case OP_RVC: po_reg_or_fail (REG_TYPE_VFC); break;
+ case OP_RMF: po_reg_or_fail (REG_TYPE_MVF); break;
+ case OP_RMD: po_reg_or_fail (REG_TYPE_MVD); break;
+ case OP_RMFX: po_reg_or_fail (REG_TYPE_MVFX); break;
+ case OP_RMDX: po_reg_or_fail (REG_TYPE_MVDX); break;
+ case OP_RMAX: po_reg_or_fail (REG_TYPE_MVAX); break;
+ case OP_RMDS: po_reg_or_fail (REG_TYPE_DSPSC); break;
+ case OP_RIWR: po_reg_or_fail (REG_TYPE_MMXWR); break;
+ case OP_RIWC: po_reg_or_fail (REG_TYPE_MMXWC); break;
+ case OP_RIWG: po_reg_or_fail (REG_TYPE_MMXWCG); break;
+ case OP_RXA: po_reg_or_fail (REG_TYPE_XSCALE); break;
+
+ case OP_RRnpcb:
+ po_char_or_fail ('[');
+ po_reg_or_fail (REG_TYPE_RN);
+ po_char_or_fail (']');
+ break;
- /* Validate some simple #expressions. */
- if (inst.reloc.exp.X_op == O_constant)
- {
- unsigned num = inst.reloc.exp.X_add_number;
-
- /* Reject operations greater than 32. */
- if (num > 32
- /* Reject a shift of 0 unless the mode allows it. */
- || (num == 0 && shift->properties->allows_0 == 0)
- /* Reject a shift of 32 unless the mode allows it. */
- || (num == 32 && shift->properties->allows_32 == 0)
- )
- {
- /* As a special case we allow a shift of zero for
- modes that do not support it to be recoded as an
- logical shift left of zero (ie nothing). We warn
- about this though. */
- if (num == 0)
- {
- as_warn (_("shift of 0 ignored."));
- shift = & shift_names[0];
- assert (shift->properties->index == SHIFT_LSL);
- }
- else
+ case OP_RRw:
+ po_reg_or_fail (REG_TYPE_RN);
+ if (skip_past_char (&str, '!') == SUCCESS)
+ inst.operands[i].writeback = 1;
+ break;
+
+ /* Immediates */
+ case OP_I7: po_imm_or_fail ( 0, 7, FALSE); break;
+ case OP_I15: po_imm_or_fail ( 0, 15, FALSE); break;
+ case OP_I16: po_imm_or_fail ( 1, 16, FALSE); break;
+ case OP_I31: po_imm_or_fail ( 0, 31, FALSE); break;
+ case OP_I32: po_imm_or_fail ( 1, 32, FALSE); break;
+ case OP_I63s: po_imm_or_fail (-64, 63, FALSE); break;
+ case OP_I255: po_imm_or_fail ( 0, 255, FALSE); break;
+ case OP_Iffff: po_imm_or_fail ( 0, 0xffff, FALSE); break;
+
+ case OP_I4b: po_imm_or_fail ( 1, 4, TRUE); break;
+ case OP_oI7b:
+ case OP_I7b: po_imm_or_fail ( 0, 7, TRUE); break;
+ case OP_I15b: po_imm_or_fail ( 0, 15, TRUE); break;
+ case OP_oI31b:
+ case OP_I31b: po_imm_or_fail ( 0, 31, TRUE); break;
+ case OP_oIffffb: po_imm_or_fail ( 0, 0xffff, TRUE); break;
+
+ /* Immediate variants */
+ case OP_oI255c:
+ po_char_or_fail ('{');
+ po_imm_or_fail (0, 255, TRUE);
+ po_char_or_fail ('}');
+ break;
+
+ case OP_I31w:
+ /* The expression parser chokes on a trailing !, so we have
+ to find it first and zap it. */
+ {
+ char *s = str;
+ while (*s && *s != ',')
+ s++;
+ if (s[-1] == '!')
+ {
+ s[-1] = '\0';
+ inst.operands[i].writeback = 1;
+ }
+ po_imm_or_fail (0, 31, TRUE);
+ if (str == s - 1)
+ str = s;
+ }
+ break;
+
+ /* Expressions */
+ case OP_EXPi: EXPi:
+ po_misc_or_fail (my_get_expression (&inst.reloc.exp, &str,
+ GE_OPT_PREFIX));
+ break;
+
+ case OP_EXP:
+ po_misc_or_fail (my_get_expression (&inst.reloc.exp, &str,
+ GE_NO_PREFIX));
+ break;
+
+ case OP_EXPr: EXPr:
+ po_misc_or_fail (my_get_expression (&inst.reloc.exp, &str,
+ GE_NO_PREFIX));
+ if (inst.reloc.exp.X_op == O_symbol)
{
- inst.error = _("invalid immediate shift");
- return FAIL;
+ val = parse_reloc (&str);
+ if (val == -1)
+ {
+ inst.error = _("unrecognized relocation suffix");
+ goto failure;
+ }
+ else if (val != BFD_RELOC_UNUSED)
+ {
+ inst.operands[i].imm = val;
+ inst.operands[i].hasreloc = 1;
+ }
}
- }
+ break;
- /* Shifts of 32 are encoded as 0, for those shifts that
- support it. */
- if (num == 32)
- num = 0;
+ /* Register or expression */
+ case OP_RR_EXr: po_reg_or_goto (REG_TYPE_RN, EXPr); break;
+ case OP_RR_EXi: po_reg_or_goto (REG_TYPE_RN, EXPi); break;
- inst.instruction |= (num << 7) | shift->properties->bit_field;
- }
- else
- {
- inst.reloc.type = BFD_RELOC_ARM_SHIFT_IMM;
- inst.reloc.pc_rel = 0;
- inst.instruction |= shift->properties->bit_field;
- }
+ /* Register or immediate */
+ case OP_RRnpc_I0: po_reg_or_goto (REG_TYPE_RN, I0); break;
+ I0: po_imm_or_fail (0, 0, FALSE); break;
- * str = p;
- return SUCCESS;
-}
+ case OP_RF_IF: po_reg_or_goto (REG_TYPE_FN, IF); break;
+ IF:
+ if (!is_immediate_prefix (*str))
+ goto bad_args;
+ str++;
+ val = parse_fpa_immediate (&str);
+ if (val == FAIL)
+ goto failure;
+ /* FPA immediates are encoded as registers 8-15.
+ parse_fpa_immediate has already applied the offset. */
+ inst.operands[i].reg = val;
+ inst.operands[i].isreg = 1;
+ break;
-static void
-do_sat (char ** str, int bias)
-{
- int rd, rm;
- expressionS expr;
+ /* Two kinds of register */
+ case OP_RIWR_RIWC:
+ {
+ struct reg_entry *rege = arm_reg_parse_multi (&str);
+ if (rege->type != REG_TYPE_MMXWR
+ && rege->type != REG_TYPE_MMXWC
+ && rege->type != REG_TYPE_MMXWCG)
+ {
+ inst.error = _("iWMMXt data or control register expected");
+ goto failure;
+ }
+ inst.operands[i].reg = rege->number;
+ inst.operands[i].isreg = (rege->type == REG_TYPE_MMXWR);
+ }
+ break;
- skip_whitespace (*str);
+ /* Misc */
+ case OP_CPSF: val = parse_cps_flags (&str); break;
+ case OP_ENDI: val = parse_endian_specifier (&str); break;
+ case OP_oROR: val = parse_ror (&str); break;
+ case OP_PSR: val = parse_psr (&str); break;
+ case OP_COND: val = parse_cond (&str); break;
+
+ /* Register lists */
+ case OP_REGLST:
+ val = parse_reg_list (&str);
+ if (*str == '^')
+ {
+ inst.operands[1].writeback = 1;
+ str++;
+ }
+ break;
- /* Parse <Rd>, field. */
- if ((rd = reg_required_here (str, 12)) == FAIL
- || skip_past_comma (str) == FAIL)
- {
- inst.error = BAD_ARGS;
- return;
- }
- if (rd == REG_PC)
- {
- inst.error = BAD_PC;
- return;
- }
+ case OP_VRSLST:
+ val = parse_vfp_reg_list (&str, &inst.operands[i].reg, 0);
+ break;
- /* Parse #<immed>, field. */
- if (is_immediate_prefix (**str))
- (*str)++;
- else
- {
- inst.error = _("immediate expression expected");
- return;
- }
- if (my_get_expression (&expr, str))
- {
- inst.error = _("bad expression");
- return;
- }
- if (expr.X_op != O_constant)
- {
- inst.error = _("constant expression expected");
- return;
- }
- if (expr.X_add_number + bias < 0
- || expr.X_add_number + bias > 31)
- {
- inst.error = _("immediate value out of range");
- return;
- }
- inst.instruction |= (expr.X_add_number + bias) << 16;
- if (skip_past_comma (str) == FAIL)
- {
- inst.error = BAD_ARGS;
- return;
- }
+ case OP_VRDLST:
+ val = parse_vfp_reg_list (&str, &inst.operands[i].reg, 1);
+ break;
- /* Parse <Rm> field. */
- if ((rm = reg_required_here (str, 0)) == FAIL)
- {
- inst.error = BAD_ARGS;
- return;
- }
- if (rm == REG_PC)
- {
- inst.error = BAD_PC;
- return;
- }
+ /* Addressing modes */
+ case OP_ADDR:
+ po_misc_or_fail (parse_address (&str, i));
+ break;
- if (skip_past_comma (str) == SUCCESS)
- decode_shift (str, SHIFT_LSL_OR_ASR_IMMEDIATE);
-}
+ case OP_SH:
+ po_misc_or_fail (parse_shifter_operand (&str, i));
+ break;
-/* ARM V6 ssat (argument parse). */
+ case OP_oSHll:
+ po_misc_or_fail (parse_shift (&str, i, SHIFT_LSL_IMMEDIATE));
+ break;
-static void
-do_ssat (char * str)
-{
- do_sat (&str, /*bias=*/-1);
- end_of_line (str);
-}
+ case OP_oSHar:
+ po_misc_or_fail (parse_shift (&str, i, SHIFT_ASR_IMMEDIATE));
+ break;
-/* ARM V6 usat (argument parse). */
+ case OP_oSHllar:
+ po_misc_or_fail (parse_shift (&str, i, SHIFT_LSL_OR_ASR_IMMEDIATE));
+ break;
-static void
-do_usat (char * str)
-{
- do_sat (&str, /*bias=*/0);
- end_of_line (str);
-}
+ default:
+ as_fatal ("unhandled operand code %d", upat[i]);
+ }
-static void
-do_sat16 (char ** str, int bias)
-{
- int rd, rm;
- expressionS expr;
+ /* Various value-based sanity checks and shared operations. We
+ do not signal immediate failures for the register constraints;
+ this allows a syntax error to take precedence. */
+ switch (upat[i])
+ {
+ case OP_oRRnpc:
+ case OP_RRnpc:
+ case OP_RRnpcb:
+ case OP_RRw:
+ case OP_RRnpc_I0:
+ if (inst.operands[i].isreg && inst.operands[i].reg == REG_PC)
+ inst.error = BAD_PC;
+ break;
- skip_whitespace (*str);
+ case OP_CPSF:
+ case OP_ENDI:
+ case OP_oROR:
+ case OP_PSR:
+ case OP_COND:
+ case OP_REGLST:
+ case OP_VRSLST:
+ case OP_VRDLST:
+ if (val == FAIL)
+ goto failure;
+ inst.operands[i].imm = val;
+ break;
- /* Parse the <Rd> field. */
- if ((rd = reg_required_here (str, 12)) == FAIL
- || skip_past_comma (str) == FAIL)
- {
- inst.error = BAD_ARGS;
- return;
- }
- if (rd == REG_PC)
- {
- inst.error = BAD_PC;
- return;
- }
+ default:
+ break;
+ }
- /* Parse #<immed>, field. */
- if (is_immediate_prefix (**str))
- (*str)++;
- else
- {
- inst.error = _("immediate expression expected");
- return;
- }
- if (my_get_expression (&expr, str))
- {
- inst.error = _("bad expression");
- return;
- }
- if (expr.X_op != O_constant)
- {
- inst.error = _("constant expression expected");
- return;
- }
- if (expr.X_add_number + bias < 0
- || expr.X_add_number + bias > 15)
- {
- inst.error = _("immediate value out of range");
- return;
- }
- inst.instruction |= (expr.X_add_number + bias) << 16;
- if (skip_past_comma (str) == FAIL)
- {
- inst.error = BAD_ARGS;
- return;
- }
+ /* If we get here, this operand was successfully parsed. */
+ inst.operands[i].present = 1;
+ continue;
- /* Parse <Rm> field. */
- if ((rm = reg_required_here (str, 0)) == FAIL)
- {
+ bad_args:
inst.error = BAD_ARGS;
- return;
- }
- if (rm == REG_PC)
- {
- inst.error = BAD_PC;
- return;
+
+ failure:
+ if (!backtrack_pos)
+ return FAIL;
+
+ /* Do not backtrack over a trailing optional argument that
+ absorbed some text. We will only fail again, with the
+ 'garbage following instruction' error message, which is
+ probably less helpful than the current one. */
+ if (backtrack_index == i && backtrack_pos != str
+ && upat[i+1] == OP_stop)
+ return FAIL;
+
+ /* Try again, skipping the optional argument at backtrack_pos. */
+ str = backtrack_pos;
+ inst.error = backtrack_error;
+ inst.operands[backtrack_index].present = 0;
+ i = backtrack_index;
+ backtrack_pos = 0;
}
-}
-/* ARM V6 ssat16 (argument parse). */
+ /* Check that we have parsed all the arguments. */
+ if (*str != '\0' && !inst.error)
+ inst.error = _("garbage following instruction");
-static void
-do_ssat16 (char * str)
-{
- do_sat16 (&str, /*bias=*/-1);
- end_of_line (str);
+ return inst.error ? FAIL : SUCCESS;
}
-static void
-do_usat16 (char * str)
+#undef po_char_or_fail
+#undef po_reg_or_fail
+#undef po_reg_or_goto
+#undef po_imm_or_fail
+\f
+/* Shorthand macro for instruction encoding functions issuing errors. */
+#define constraint(expr, err) do { \
+ if (expr) \
+ { \
+ inst.error = err; \
+ return; \
+ } \
+} while (0)
+
+/* Functions for operand encoding. ARM, then Thumb. */
+
+#define rotate_left(v, n) (v << n | v >> (32 - n))
+
+/* If VAL can be encoded in the immediate field of an ARM instruction,
+ return the encoded form. Otherwise, return FAIL. */
+
+static unsigned int
+encode_arm_immediate (unsigned int val)
{
- do_sat16 (&str, /*bias=*/0);
- end_of_line (str);
+ unsigned int a, i;
+
+ for (i = 0; i < 32; i += 2)
+ if ((a = rotate_left (val, i)) <= 0xff)
+ return a | (i << 7); /* 12-bit pack: [shift-cnt,const]. */
+
+ return FAIL;
}
-static void
-do_cps_mode (char ** str)
+/* If VAL can be encoded in the immediate field of a Thumb32 instruction,
+ return the encoded form. Otherwise, return FAIL. */
+static unsigned int
+encode_thumb32_immediate (unsigned int val)
{
- expressionS expr;
+ unsigned int a, i;
- skip_whitespace (*str);
-
- if (! is_immediate_prefix (**str))
- {
- inst.error = _("immediate expression expected");
- return;
- }
+ if (val <= 255)
+ return val;
- (*str)++; /* Strip off the immediate signifier. */
- if (my_get_expression (&expr, str))
+ for (i = 0; i < 32; i++)
{
- inst.error = _("bad expression");
- return;
+ a = rotate_left (val, i);
+ if (a >= 128 && a <= 255)
+ return (a & 0x7f) | (i << 7);
}
- if (expr.X_op != O_constant)
- {
- inst.error = _("constant expression expected");
- return;
- }
+ a = val & 0xff;
+ if (val == ((a << 16) | a))
+ return 0x100 | a;
+ if (val == ((a << 24) | (a << 16) | (a << 8) | a))
+ return 0x300 | a;
- /* The mode is a 5 bit field. Valid values are 0-31. */
- if (((unsigned) expr.X_add_number) > 31
- || (inst.reloc.exp.X_add_number) < 0)
- {
- inst.error = _("invalid constant");
- return;
- }
+ a = val & 0xff00;
+ if (val == ((a << 16) | a))
+ return 0x200 | (a >> 8);
- inst.instruction |= expr.X_add_number;
+ return FAIL;
}
-
-/* ARM V6 srs (argument parse). */
+/* Encode a VFP SP register number into inst.instruction. */
static void
-do_srs (char * str)
+encode_arm_vfp_sp_reg (int reg, enum vfp_sp_reg_pos pos)
{
- char *exclam;
- skip_whitespace (str);
- exclam = strchr (str, '!');
- if (exclam)
- *exclam = '\0';
- do_cps_mode (&str);
- if (exclam)
- *exclam = '!';
- if (*str == '!')
+ switch (pos)
{
- inst.instruction |= WRITE_BACK;
- str++;
+ case VFP_REG_Sd:
+ inst.instruction |= ((reg >> 1) << 12) | ((reg & 1) << 22);
+ break;
+
+ case VFP_REG_Sn:
+ inst.instruction |= ((reg >> 1) << 16) | ((reg & 1) << 7);
+ break;
+
+ case VFP_REG_Sm:
+ inst.instruction |= ((reg >> 1) << 0) | ((reg & 1) << 5);
+ break;
+
+ default:
+ abort ();
}
- end_of_line (str);
}
-/* ARM V6 SMMUL (argument parse). */
-
+/* Encode a <shift> in an ARM-format instruction. The immediate,
+ if any, is handled by md_apply_fix3. */
static void
-do_smmul (char * str)
+encode_arm_shift (int i)
{
- int rd, rm, rs;
-
- skip_whitespace (str);
- if ((rd = reg_required_here (&str, 16)) == FAIL
- || skip_past_comma (&str) == FAIL
- || (rm = reg_required_here (&str, 0)) == FAIL
- || skip_past_comma (&str) == FAIL
- || (rs = reg_required_here (&str, 8)) == FAIL)
+ if (inst.operands[i].shift_kind == SHIFT_RRX)
+ inst.instruction |= SHIFT_ROR << 5;
+ else
{
- inst.error = BAD_ARGS;
- return;
+ inst.instruction |= inst.operands[i].shift_kind << 5;
+ if (inst.operands[i].immisreg)
+ {
+ inst.instruction |= SHIFT_BY_REG;
+ inst.instruction |= inst.operands[i].imm << 8;
+ }
+ else
+ inst.reloc.type = BFD_RELOC_ARM_SHIFT_IMM;
}
+}
- if ( rd == REG_PC
- || rm == REG_PC
- || rs == REG_PC)
+static void
+encode_arm_shifter_operand (int i)
+{
+ if (inst.operands[i].isreg)
{
- inst.error = BAD_PC;
- return;
+ inst.instruction |= inst.operands[i].reg;
+ encode_arm_shift (i);
}
-
- end_of_line (str);
+ else
+ inst.instruction |= INST_IMMEDIATE;
}
-/* ARM V6 SMLALD (argument parse). */
-
+/* Subroutine of encode_arm_addr_mode_2 and encode_arm_addr_mode_3. */
static void
-do_smlald (char * str)
+encode_arm_addr_mode_common (int i, bfd_boolean is_t)
{
- int rdlo, rdhi, rm, rs;
+ assert (inst.operands[i].isreg);
+ inst.instruction |= inst.operands[i].reg << 16;
- skip_whitespace (str);
- if ((rdlo = reg_required_here (&str, 12)) == FAIL
- || skip_past_comma (&str) == FAIL
- || (rdhi = reg_required_here (&str, 16)) == FAIL
- || skip_past_comma (&str) == FAIL
- || (rm = reg_required_here (&str, 0)) == FAIL
- || skip_past_comma (&str) == FAIL
- || (rs = reg_required_here (&str, 8)) == FAIL)
+ if (inst.operands[i].preind)
{
- inst.error = BAD_ARGS;
- return;
- }
+ if (is_t)
+ {
+ inst.error = _("instruction does not accept preindexed addressing");
+ return;
+ }
+ inst.instruction |= PRE_INDEX;
+ if (inst.operands[i].writeback)
+ inst.instruction |= WRITE_BACK;
- if ( rdlo == REG_PC
- || rdhi == REG_PC
- || rm == REG_PC
- || rs == REG_PC)
+ }
+ else if (inst.operands[i].postind)
+ {
+ assert (inst.operands[i].writeback);
+ if (is_t)
+ inst.instruction |= WRITE_BACK;
+ }
+ else /* unindexed - only for coprocessor */
{
- inst.error = BAD_PC;
+ inst.error = _("instruction does not accept unindexed addressing");
return;
}
- end_of_line (str);
+ if (((inst.instruction & WRITE_BACK) || !(inst.instruction & PRE_INDEX))
+ && (((inst.instruction & 0x000f0000) >> 16)
+ == ((inst.instruction & 0x0000f000) >> 12)))
+ as_warn ((inst.instruction & LOAD_BIT)
+ ? _("destination register same as write-back base")
+ : _("source register same as write-back base"));
}
-/* ARM V6 SMLAD (argument parse). Signed multiply accumulate dual.
- smlad{x}{<cond>} Rd, Rm, Rs, Rn */
-
+/* inst.operands[i] was set up by parse_address. Encode it into an
+ ARM-format mode 2 load or store instruction. If is_t is true,
+ reject forms that cannot be used with a T instruction (i.e. not
+ post-indexed). */
static void
-do_smlad (char * str)
+encode_arm_addr_mode_2 (int i, bfd_boolean is_t)
{
- int rd, rm, rs, rn;
+ encode_arm_addr_mode_common (i, is_t);
- skip_whitespace (str);
- if ((rd = reg_required_here (&str, 16)) == FAIL
- || skip_past_comma (&str) == FAIL
- || (rm = reg_required_here (&str, 0)) == FAIL
- || skip_past_comma (&str) == FAIL
- || (rs = reg_required_here (&str, 8)) == FAIL
- || skip_past_comma (&str) == FAIL
- || (rn = reg_required_here (&str, 12)) == FAIL)
+ if (inst.operands[i].immisreg)
{
- inst.error = BAD_ARGS;
- return;
+ inst.instruction |= INST_IMMEDIATE; /* yes, this is backwards */
+ inst.instruction |= inst.operands[i].imm;
+ if (!inst.operands[i].negative)
+ inst.instruction |= INDEX_UP;
+ if (inst.operands[i].shifted)
+ {
+ if (inst.operands[i].shift_kind == SHIFT_RRX)
+ inst.instruction |= SHIFT_ROR << 5;
+ else
+ {
+ inst.instruction |= inst.operands[i].shift_kind << 5;
+ inst.reloc.type = BFD_RELOC_ARM_SHIFT_IMM;
+ }
+ }
}
-
- if ( rd == REG_PC
- || rn == REG_PC
- || rs == REG_PC
- || rm == REG_PC)
+ else /* immediate offset in inst.reloc */
{
- inst.error = BAD_PC;
- return;
+ if (inst.reloc.type == BFD_RELOC_UNUSED)
+ inst.reloc.type = BFD_RELOC_ARM_OFFSET_IMM;
+ if (inst.reloc.pc_rel)
+ inst.reloc.exp.X_add_number -= 8; /* pipeline offset */
}
-
- end_of_line (str);
}
-/* Returns true if the endian-specifier indicates big-endianness. */
-
-static int
-do_endian_specifier (char * str)
+/* inst.operands[i] was set up by parse_address. Encode it into an
+ ARM-format mode 3 load or store instruction. Reject forms that
+ cannot be used with such instructions. If is_t is true, reject
+ forms that cannot be used with a T instruction (i.e. not
+ post-indexed). */
+static void
+encode_arm_addr_mode_3 (int i, bfd_boolean is_t)
{
- int big_endian = 0;
-
- skip_whitespace (str);
- if (strlen (str) < 2)
- inst.error = _("missing endian specifier");
- else if (strncasecmp (str, "BE", 2) == 0)
+ if (inst.operands[i].immisreg && inst.operands[i].shifted)
{
- str += 2;
- big_endian = 1;
+ inst.error = _("instruction does not accept scaled register index");
+ return;
}
- else if (strncasecmp (str, "LE", 2) == 0)
- str += 2;
- else
- inst.error = _("valid endian specifiers are be or le");
-
- end_of_line (str);
-
- return big_endian;
-}
-
-/* ARM V6 SETEND (argument parse). Sets the E bit in the CPSR while
- preserving the other bits.
- setend <endian_specifier>, where <endian_specifier> is either
- BE or LE. */
+ encode_arm_addr_mode_common (i, is_t);
-static void
-do_setend (char * str)
-{
- if (do_endian_specifier (str))
- inst.instruction |= 0x200;
+ if (inst.operands[i].immisreg)
+ {
+ inst.instruction |= inst.operands[i].imm;
+ if (!inst.operands[i].negative)
+ inst.instruction |= INDEX_UP;
+ }
+ else /* immediate offset in inst.reloc */
+ {
+ inst.instruction |= HWOFFSET_IMM;
+ if (inst.reloc.type == BFD_RELOC_UNUSED)
+ inst.reloc.type = BFD_RELOC_ARM_OFFSET_IMM8;
+ if (inst.reloc.pc_rel)
+ inst.reloc.exp.X_add_number -= 8; /* pipeline offset */
+ }
}
-/* ARM V6 SXTH.
-
- SXTH {<cond>} <Rd>, <Rm>{, <rotation>}
- Condition defaults to COND_ALWAYS.
- Error if any register uses R15. */
+/* inst.operands[i] was set up by parse_address. Encode it into an
+ ARM-format instruction. Reject all forms which cannot be encoded
+ into a coprocessor load/store instruction. If wb_ok is false,
+ reject use of writeback; if unind_ok is false, reject use of
+ unindexed addressing. If reloc_override is not 0, use it instead
+ of BFD_ARM_CP_OFF_IMM. */
-static void
-do_sxth (char * str)
+static int
+encode_arm_cp_address (int i, int wb_ok, int unind_ok, int reloc_override)
{
- int rd, rm;
- expressionS expr;
- int rotation_clear_mask = 0xfffff3ff;
- int rotation_eight_mask = 0x00000400;
- int rotation_sixteen_mask = 0x00000800;
- int rotation_twenty_four_mask = 0x00000c00;
+ inst.instruction |= inst.operands[i].reg << 16;
- skip_whitespace (str);
- if ((rd = reg_required_here (&str, 12)) == FAIL
- || skip_past_comma (&str) == FAIL
- || (rm = reg_required_here (&str, 0)) == FAIL)
- {
- inst.error = BAD_ARGS;
- return;
- }
+ assert (!(inst.operands[i].preind && inst.operands[i].postind));
- else if (rd == REG_PC || rm == REG_PC)
+ if (!inst.operands[i].preind && !inst.operands[i].postind) /* unindexed */
{
- inst.error = BAD_PC;
- return;
+ assert (!inst.operands[i].writeback);
+ if (!unind_ok)
+ {
+ inst.error = _("instruction does not support unindexed addressing");
+ return FAIL;
+ }
+ inst.instruction |= inst.operands[i].imm;
+ inst.instruction |= INDEX_UP;
+ return SUCCESS;
}
- /* Zero out the rotation field. */
- inst.instruction &= rotation_clear_mask;
+ if (inst.operands[i].preind)
+ inst.instruction |= PRE_INDEX;
- /* Check for lack of optional rotation field. */
- if (skip_past_comma (&str) == FAIL)
+ if (inst.operands[i].writeback)
{
- end_of_line (str);
- return;
+ if (inst.operands[i].reg == REG_PC)
+ {
+ inst.error = _("pc may not be used with write-back");
+ return FAIL;
+ }
+ if (!wb_ok)
+ {
+ inst.error = _("instruction does not support writeback");
+ return FAIL;
+ }
+ inst.instruction |= WRITE_BACK;
}
- /* Move past 'ROR'. */
- skip_whitespace (str);
- if (strncasecmp (str, "ROR", 3) == 0)
- str += 3;
+ if (reloc_override)
+ inst.reloc.type = reloc_override;
else
- {
- inst.error = _("missing rotation field after comma");
- return;
- }
+ inst.reloc.type = BFD_RELOC_ARM_CP_OFF_IMM;
+ if (inst.reloc.pc_rel)
+ inst.reloc.exp.X_add_number -= 8;
+ return SUCCESS;
+}
- /* Get the immediate constant. */
- skip_whitespace (str);
- if (is_immediate_prefix (* str))
- str++;
- else
- {
- inst.error = _("immediate expression expected");
- return;
- }
+/* inst.reloc.exp describes an "=expr" load pseudo-operation.
+ Determine whether it can be performed with a move instruction; if
+ it can, convert inst.instruction to that move instruction and
+ return 1; if it can't, convert inst.instruction to a literal-pool
+ load and return 0. If this is not a valid thing to do in the
+ current context, set inst.error and return 1.
- if (my_get_expression (&expr, &str))
+ inst.operands[i] describes the destination register. */
+
+static int
+move_or_literal_pool (int i, bfd_boolean thumb_p, bfd_boolean mode_3)
+{
+ if ((inst.instruction & (thumb_p ? THUMB_LOAD_BIT : LOAD_BIT)) == 0)
{
- inst.error = _("bad expression");
- return;
+ inst.error = _("invalid pseudo operation");
+ return 1;
}
-
- if (expr.X_op != O_constant)
+ if (inst.reloc.exp.X_op != O_constant && inst.reloc.exp.X_op != O_symbol)
{
inst.error = _("constant expression expected");
- return;
+ return 1;
}
-
- switch (expr.X_add_number)
+ if (inst.reloc.exp.X_op == O_constant)
{
- case 0:
- /* Rotation field has already been zeroed. */
- break;
- case 8:
- inst.instruction |= rotation_eight_mask;
- break;
-
- case 16:
- inst.instruction |= rotation_sixteen_mask;
- break;
-
- case 24:
- inst.instruction |= rotation_twenty_four_mask;
- break;
+ if (thumb_p)
+ {
+ if ((inst.reloc.exp.X_add_number & ~0xFF) == 0)
+ {
+ /* This can be done with a mov(1) instruction. */
+ inst.instruction = T_OPCODE_MOV_I8 | (inst.operands[i].reg << 8);
+ inst.instruction |= inst.reloc.exp.X_add_number;
+ return 1;
+ }
+ }
+ else
+ {
+ int value = encode_arm_immediate (inst.reloc.exp.X_add_number);
+ if (value != FAIL)
+ {
+ /* This can be done with a mov instruction. */
+ inst.instruction &= LITERAL_MASK;
+ inst.instruction |= INST_IMMEDIATE | (OPCODE_MOV << DATA_OP_SHIFT);
+ inst.instruction |= value & 0xfff;
+ return 1;
+ }
- default:
- inst.error = _("rotation can be 8, 16, 24 or 0 when field is ommited");
- break;
+ value = encode_arm_immediate (~inst.reloc.exp.X_add_number);
+ if (value != FAIL)
+ {
+ /* This can be done with a mvn instruction. */
+ inst.instruction &= LITERAL_MASK;
+ inst.instruction |= INST_IMMEDIATE | (OPCODE_MVN << DATA_OP_SHIFT);
+ inst.instruction |= value & 0xfff;
+ return 1;
+ }
+ }
}
- end_of_line (str);
+ if (add_to_lit_pool () == FAIL)
+ {
+ inst.error = _("literal pool insertion failed");
+ return 1;
+ }
+ inst.operands[1].reg = REG_PC;
+ inst.operands[1].isreg = 1;
+ inst.operands[1].preind = 1;
+ inst.reloc.pc_rel = 1;
+ inst.reloc.type = (thumb_p
+ ? BFD_RELOC_ARM_THUMB_OFFSET
+ : (mode_3
+ ? BFD_RELOC_ARM_HWLITERAL
+ : BFD_RELOC_ARM_LITERAL));
+ return 0;
}
-/* ARM V6 SXTAH extracts a 16-bit value from a register, sign
- extends it to 32-bits, and adds the result to a value in another
- register. You can specify a rotation by 0, 8, 16, or 24 bits
- before extracting the 16-bit value.
- SXTAH{<cond>} <Rd>, <Rn>, <Rm>{, <rotation>}
- Condition defaults to COND_ALWAYS.
- Error if any register uses R15. */
+/* Functions for instruction encoding, sorted by subarchitecture.
+ First some generics; their names are taken from the conventional
+ bit positions for register arguments in ARM format instructions. */
static void
-do_sxtah (char * str)
+do_noargs (void)
{
- int rd, rn, rm;
- expressionS expr;
- int rotation_clear_mask = 0xfffff3ff;
- int rotation_eight_mask = 0x00000400;
- int rotation_sixteen_mask = 0x00000800;
- int rotation_twenty_four_mask = 0x00000c00;
+}
- skip_whitespace (str);
- if ((rd = reg_required_here (&str, 12)) == FAIL
- || skip_past_comma (&str) == FAIL
- || (rn = reg_required_here (&str, 16)) == FAIL
- || skip_past_comma (&str) == FAIL
- || (rm = reg_required_here (&str, 0)) == FAIL)
- {
- inst.error = BAD_ARGS;
- return;
- }
-
- else if (rd == REG_PC || rn == REG_PC || rm == REG_PC)
- {
- inst.error = BAD_PC;
- return;
- }
-
- /* Zero out the rotation field. */
- inst.instruction &= rotation_clear_mask;
-
- /* Check for lack of optional rotation field. */
- if (skip_past_comma (&str) == FAIL)
- {
- end_of_line (str);
- return;
- }
-
- /* Move past 'ROR'. */
- skip_whitespace (str);
- if (strncasecmp (str, "ROR", 3) == 0)
- str += 3;
- else
- {
- inst.error = _("missing rotation field after comma");
- return;
- }
-
- /* Get the immediate constant. */
- skip_whitespace (str);
- if (is_immediate_prefix (* str))
- str++;
- else
- {
- inst.error = _("immediate expression expected");
- return;
- }
+static void
+do_rd (void)
+{
+ inst.instruction |= inst.operands[0].reg << 12;
+}
- if (my_get_expression (&expr, &str))
- {
- inst.error = _("bad expression");
- return;
- }
+static void
+do_rd_rm (void)
+{
+ inst.instruction |= inst.operands[0].reg << 12;
+ inst.instruction |= inst.operands[1].reg;
+}
- if (expr.X_op != O_constant)
- {
- inst.error = _("constant expression expected");
- return;
- }
+static void
+do_rd_rn (void)
+{
+ inst.instruction |= inst.operands[0].reg << 12;
+ inst.instruction |= inst.operands[1].reg << 16;
+}
- switch (expr.X_add_number)
- {
- case 0:
- /* Rotation field has already been zeroed. */
- break;
+static void
+do_rn_rd (void)
+{
+ inst.instruction |= inst.operands[0].reg << 16;
+ inst.instruction |= inst.operands[1].reg << 12;
+}
- case 8:
- inst.instruction |= rotation_eight_mask;
- break;
+static void
+do_rd_rm_rn (void)
+{
+ inst.instruction |= inst.operands[0].reg << 12;
+ inst.instruction |= inst.operands[1].reg;
+ inst.instruction |= inst.operands[2].reg << 16;
+}
- case 16:
- inst.instruction |= rotation_sixteen_mask;
- break;
+static void
+do_rd_rn_rm (void)
+{
+ inst.instruction |= inst.operands[0].reg << 12;
+ inst.instruction |= inst.operands[1].reg << 16;
+ inst.instruction |= inst.operands[2].reg;
+}
- case 24:
- inst.instruction |= rotation_twenty_four_mask;
- break;
+static void
+do_rm_rd_rn (void)
+{
+ inst.instruction |= inst.operands[0].reg;
+ inst.instruction |= inst.operands[1].reg << 12;
+ inst.instruction |= inst.operands[2].reg << 16;
+}
- default:
- inst.error = _("rotation can be 8, 16, 24 or 0 when field is ommited");
- break;
- }
+static void
+do_imm0 (void)
+{
+ inst.instruction |= inst.operands[0].imm;
+}
- end_of_line (str);
+static void
+do_rd_cpaddr (void)
+{
+ inst.instruction |= inst.operands[0].reg << 12;
+ encode_arm_cp_address (1, TRUE, TRUE, 0);
}
+/* ARM instructions, in alphabetical order by function name (except
+ that wrapper functions appear immediately after the function they
+ wrap). */
-/* ARM V6 RFE (Return from Exception) loads the PC and CPSR from the
- word at the specified address and the following word
- respectively.
- Unconditionally executed.
- Error if Rn is R15. */
+/* This is a pseudo-op of the form "adr rd, label" to be converted
+ into a relative address of the form "add rd, pc, #label-.-8". */
static void
-do_rfe (char * str)
+do_adr (void)
{
- int rn;
-
- skip_whitespace (str);
+ inst.instruction |= (inst.operands[0].reg << 12); /* Rd */
- if ((rn = reg_required_here (&str, 16)) == FAIL)
- return;
+ /* Frag hacking will turn this into a sub instruction if the offset turns
+ out to be negative. */
+ inst.reloc.type = BFD_RELOC_ARM_IMMEDIATE;
+#ifndef TE_WINCE
+ inst.reloc.exp.X_add_number -= 8; /* PC relative adjust. */
+#endif
+ inst.reloc.pc_rel = 1;
+}
- if (rn == REG_PC)
- {
- inst.error = BAD_PC;
- return;
- }
+/* This is a pseudo-op of the form "adrl rd, label" to be converted
+ into a relative address of the form:
+ add rd, pc, #low(label-.-8)"
+ add rd, rd, #high(label-.-8)" */
- skip_whitespace (str);
+static void
+do_adrl (void)
+{
+ inst.instruction |= (inst.operands[0].reg << 12); /* Rd */
- if (*str == '!')
- {
- inst.instruction |= WRITE_BACK;
- str++;
- }
- end_of_line (str);
+ /* Frag hacking will turn this into a sub instruction if the offset turns
+ out to be negative. */
+ inst.reloc.type = BFD_RELOC_ARM_ADRL_IMMEDIATE;
+#ifndef TE_WINCE
+ inst.reloc.exp.X_add_number -= 8; /* PC relative adjust */
+#endif
+ inst.reloc.pc_rel = 1;
+ inst.size = INSN_SIZE * 2;
}
-/* ARM V6 REV (Byte Reverse Word) reverses the byte order in a 32-bit
- register (argument parse).
- REV{<cond>} Rd, Rm.
- Condition defaults to COND_ALWAYS.
- Error if Rd or Rm are R15. */
-
static void
-do_rev (char * str)
+do_arit (void)
{
- int rd, rm;
+ if (!inst.operands[1].present)
+ inst.operands[1].reg = inst.operands[0].reg;
+ inst.instruction |= inst.operands[0].reg << 12;
+ inst.instruction |= inst.operands[1].reg << 16;
+ encode_arm_shifter_operand (2);
+}
- skip_whitespace (str);
+static void
+do_bfc (void)
+{
+ unsigned int msb = inst.operands[1].imm + inst.operands[2].imm;
+ constraint (msb > 32, _("bit-field extends past end of register"));
+ /* The instruction encoding stores the LSB and MSB,
+ not the LSB and width. */
+ inst.instruction |= inst.operands[0].reg << 12;
+ inst.instruction |= inst.operands[1].imm << 7;
+ inst.instruction |= (msb - 1) << 16;
+}
- if ((rd = reg_required_here (&str, 12)) == FAIL
- || skip_past_comma (&str) == FAIL
- || (rm = reg_required_here (&str, 0)) == FAIL)
- inst.error = BAD_ARGS;
+static void
+do_bfi (void)
+{
+ unsigned int msb;
- else if (rd == REG_PC || rm == REG_PC)
- inst.error = BAD_PC;
+ /* #0 in second position is alternative syntax for bfc, which is
+ the same instruction but with REG_PC in the Rm field. */
+ if (!inst.operands[1].isreg)
+ inst.operands[1].reg = REG_PC;
- else
- end_of_line (str);
+ msb = inst.operands[2].imm + inst.operands[3].imm;
+ constraint (msb > 32, _("bit-field extends past end of register"));
+ /* The instruction encoding stores the LSB and MSB,
+ not the LSB and width. */
+ inst.instruction |= inst.operands[0].reg << 12;
+ inst.instruction |= inst.operands[1].reg;
+ inst.instruction |= inst.operands[2].imm << 7;
+ inst.instruction |= (msb - 1) << 16;
}
-/* ARM V6 Perform Two Sixteen Bit Integer Additions. (argument parse).
- QADD16{<cond>} <Rd>, <Rn>, <Rm>
- Condition defaults to COND_ALWAYS.
- Error if Rd, Rn or Rm are R15. */
-
static void
-do_qadd16 (char * str)
+do_bfx (void)
{
- int rd, rm, rn;
+ constraint (inst.operands[2].imm + inst.operands[3].imm > 32,
+ _("bit-field extends past end of register"));
+ inst.instruction |= inst.operands[0].reg << 12;
+ inst.instruction |= inst.operands[1].reg;
+ inst.instruction |= inst.operands[2].imm << 7;
+ inst.instruction |= (inst.operands[3].imm - 1) << 16;
+}
- skip_whitespace (str);
+/* ARM V5 breakpoint instruction (argument parse)
+ BKPT <16 bit unsigned immediate>
+ Instruction is not conditional.
+ The bit pattern given in insns[] has the COND_ALWAYS condition,
+ and it is an error if the caller tried to override that. */
- if ((rd = reg_required_here (&str, 12)) == FAIL
- || skip_past_comma (&str) == FAIL
- || (rn = reg_required_here (&str, 16)) == FAIL
- || skip_past_comma (&str) == FAIL
- || (rm = reg_required_here (&str, 0)) == FAIL)
- inst.error = BAD_ARGS;
+static void
+do_bkpt (void)
+{
+ /* Top 12 of 16 bits to bits 19:8. */
+ inst.instruction |= (inst.operands[0].imm & 0xfff0) << 4;
- else if (rd == REG_PC || rm == REG_PC || rn == REG_PC)
- inst.error = BAD_PC;
+ /* Bottom 4 of 16 bits to bits 3:0. */
+ inst.instruction |= inst.operands[0].imm & 0xf;
+}
+static void
+encode_branch (int default_reloc)
+{
+ if (inst.operands[0].hasreloc)
+ {
+ constraint (inst.operands[0].imm != BFD_RELOC_ARM_PLT32,
+ _("the only suffix valid here is '(plt)'"));
+ inst.reloc.type = BFD_RELOC_ARM_PLT32;
+ inst.reloc.pc_rel = 0;
+ }
else
- end_of_line (str);
+ {
+ inst.reloc.type = default_reloc;
+ inst.reloc.pc_rel = 1;
+ }
}
static void
-do_pkh_core (char * str, int shift)
+do_branch (void)
{
- int rd, rn, rm;
+ encode_branch (BFD_RELOC_ARM_PCREL_BRANCH);
+}
- skip_whitespace (str);
- if (((rd = reg_required_here (&str, 12)) == FAIL)
- || (skip_past_comma (&str) == FAIL)
- || ((rn = reg_required_here (&str, 16)) == FAIL)
- || (skip_past_comma (&str) == FAIL)
- || ((rm = reg_required_here (&str, 0)) == FAIL))
- {
- inst.error = BAD_ARGS;
- return;
- }
+/* ARM V5 branch-link-exchange instruction (argument parse)
+ BLX <target_addr> ie BLX(1)
+ BLX{<condition>} <Rm> ie BLX(2)
+ Unfortunately, there are two different opcodes for this mnemonic.
+ So, the insns[].value is not used, and the code here zaps values
+ into inst.instruction.
+ Also, the <target_addr> can be 25 bits, hence has its own reloc. */
- else if (rd == REG_PC || rn == REG_PC || rm == REG_PC)
+static void
+do_blx (void)
+{
+ if (inst.operands[0].isreg)
{
- inst.error = BAD_PC;
- return;
- }
+ /* Arg is a register; the opcode provided by insns[] is correct.
+ It is not illegal to do "blx pc", just useless. */
+ if (inst.operands[0].reg == REG_PC)
+ as_tsktsk (_("use of r15 in blx in ARM mode is not really useful"));
- /* Check for optional shift immediate constant. */
- if (skip_past_comma (&str) == FAIL)
+ inst.instruction |= inst.operands[0].reg;
+ }
+ else
{
- if (shift == SHIFT_ASR_IMMEDIATE)
- {
- /* If the shift specifier is ommited, turn the instruction
- into pkhbt rd, rm, rn. First, switch the instruction
- code, and clear the rn and rm fields. */
- inst.instruction &= 0xfff0f010;
- /* Now, re-encode the registers. */
- inst.instruction |= (rm << 16) | rn;
- }
- return;
+ /* Arg is an address; this instruction cannot be executed
+ conditionally, and the opcode must be adjusted. */
+ constraint (inst.cond != COND_ALWAYS, BAD_COND);
+ inst.instruction = 0xfafffffe;
+ encode_branch (BFD_RELOC_ARM_PCREL_BLX);
}
+}
+
+static void
+do_bx (void)
+{
+ if (inst.operands[0].reg == REG_PC)
+ as_tsktsk (_("use of r15 in bx in ARM mode is not really useful"));
- decode_shift (&str, shift);
+ inst.instruction |= inst.operands[0].reg;
}
-/* ARM V6 Pack Halfword Bottom Top instruction (argument parse).
- PKHBT {<cond>} <Rd>, <Rn>, <Rm> {, LSL #<shift_imm>}
- Condition defaults to COND_ALWAYS.
- Error if Rd, Rn or Rm are R15. */
+
+/* ARM v5TEJ. Jump to Jazelle code. */
static void
-do_pkhbt (char * str)
+do_bxj (void)
{
- do_pkh_core (str, SHIFT_LSL_IMMEDIATE);
+ if (inst.operands[0].reg == REG_PC)
+ as_tsktsk (_("use of r15 in bxj is not really useful"));
+
+ inst.instruction |= inst.operands[0].reg;
}
-/* ARM V6 PKHTB (Argument Parse). */
+/* Co-processor data operation:
+ CDP{cond} <coproc>, <opcode_1>, <CRd>, <CRn>, <CRm>{, <opcode_2>}
+ CDP2 <coproc>, <opcode_1>, <CRd>, <CRn>, <CRm>{, <opcode_2>} */
+static void
+do_cdp (void)
+{
+ inst.instruction |= inst.operands[0].reg << 8;
+ inst.instruction |= inst.operands[1].imm << 20;
+ inst.instruction |= inst.operands[2].reg << 12;
+ inst.instruction |= inst.operands[3].reg << 16;
+ inst.instruction |= inst.operands[4].reg;
+ inst.instruction |= inst.operands[5].imm << 5;
+}
static void
-do_pkhtb (char * str)
+do_cmp (void)
{
- do_pkh_core (str, SHIFT_ASR_IMMEDIATE);
+ inst.instruction |= inst.operands[0].reg << 16;
+ encode_arm_shifter_operand (1);
}
-/* ARM V6 Load Register Exclusive instruction (argument parse).
- LDREX{,B,D,H}{<cond>} <Rd, [<Rn>]
- Condition defaults to COND_ALWAYS.
- Error if Rd or Rn are R15.
- See ARMARMv6 A4.1.27: LDREX. */
+/* Transfer between coprocessor and ARM registers.
+ MRC{cond} <coproc>, <opcode_1>, <Rd>, <CRn>, <CRm>{, <opcode_2>}
+ MRC2
+ MCR{cond}
+ MCR2
+
+ No special properties. */
static void
-do_ldrex (char * str)
+do_co_reg (void)
{
- int rd, rn;
-
- skip_whitespace (str);
+ inst.instruction |= inst.operands[0].reg << 8;
+ inst.instruction |= inst.operands[1].imm << 21;
+ inst.instruction |= inst.operands[2].reg << 12;
+ inst.instruction |= inst.operands[3].reg << 16;
+ inst.instruction |= inst.operands[4].reg;
+ inst.instruction |= inst.operands[5].imm << 5;
+}
- /* Parse Rd. */
- if (((rd = reg_required_here (&str, 12)) == FAIL)
- || (skip_past_comma (&str) == FAIL))
- {
- inst.error = BAD_ARGS;
- return;
- }
- else if (rd == REG_PC)
- {
- inst.error = BAD_PC;
- return;
- }
- skip_whitespace (str);
+/* Transfer between coprocessor register and pair of ARM registers.
+ MCRR{cond} <coproc>, <opcode>, <Rd>, <Rn>, <CRm>.
+ MCRR2
+ MRRC{cond}
+ MRRC2
- /* Skip past '['. */
- if ((strlen (str) >= 1)
- &&strncmp (str, "[", 1) == 0)
- str += 1;
- skip_whitespace (str);
+ Two XScale instructions are special cases of these:
- /* Parse Rn. */
- if ((rn = reg_required_here (&str, 16)) == FAIL)
- {
- inst.error = BAD_ARGS;
- return;
- }
- else if (rn == REG_PC)
- {
- inst.error = BAD_PC;
- return;
- }
- skip_whitespace (str);
+ MAR{cond} acc0, <RdLo>, <RdHi> == MCRR{cond} p0, #0, <RdLo>, <RdHi>, c0
+ MRA{cond} acc0, <RdLo>, <RdHi> == MRRC{cond} p0, #0, <RdLo>, <RdHi>, c0
- /* Skip past ']'. */
- if ((strlen (str) >= 1)
- && strncmp (str, "]", 1) == 0)
- str += 1;
+ Result unpredicatable if Rd or Rn is R15. */
- end_of_line (str);
+static void
+do_co_reg2c (void)
+{
+ inst.instruction |= inst.operands[0].reg << 8;
+ inst.instruction |= inst.operands[1].imm << 4;
+ inst.instruction |= inst.operands[2].reg << 12;
+ inst.instruction |= inst.operands[3].reg << 16;
+ inst.instruction |= inst.operands[4].reg;
}
-/* ARM V6 change processor state instruction (argument parse)
- CPS, CPSIE, CSPID . */
+static void
+do_cpsi (void)
+{
+ inst.instruction |= inst.operands[0].imm << 6;
+ inst.instruction |= inst.operands[1].imm;
+}
static void
-do_cps (char * str)
+do_it (void)
{
- do_cps_mode (&str);
- end_of_line (str);
+ /* There is no IT instruction in ARM mode. We
+ process it but do not generate code for it. */
+ inst.size = 0;
}
static void
-do_cps_flags (char ** str, int thumb_p)
+do_ldmstm (void)
{
- struct cps_flag
- {
- char character;
- unsigned long arm_value;
- unsigned long thumb_value;
- };
- static struct cps_flag flag_table[] =
- {
- {'a', 0x100, 0x4 },
- {'i', 0x080, 0x2 },
- {'f', 0x040, 0x1 }
- };
+ int base_reg = inst.operands[0].reg;
+ int range = inst.operands[1].imm;
- int saw_a_flag = 0;
+ inst.instruction |= base_reg << 16;
+ inst.instruction |= range;
- skip_whitespace (*str);
+ if (inst.operands[1].writeback)
+ inst.instruction |= LDM_TYPE_2_OR_3;
- /* Get the a, f and i flags. */
- while (**str && **str != ',')
+ if (inst.operands[0].writeback)
{
- struct cps_flag *p;
- struct cps_flag *q = flag_table + sizeof (flag_table)/sizeof (*p);
-
- for (p = flag_table; p < q; ++p)
- if (strncasecmp (*str, &p->character, 1) == 0)
- {
- inst.instruction |= (thumb_p ? p->thumb_value : p->arm_value);
- saw_a_flag = 1;
- break;
- }
- if (p == q)
+ inst.instruction |= WRITE_BACK;
+ /* Check for unpredictable uses of writeback. */
+ if (inst.instruction & LOAD_BIT)
{
- inst.error = _("unrecognized flag");
- return;
+ /* Not allowed in LDM type 2. */
+ if ((inst.instruction & LDM_TYPE_2_OR_3)
+ && ((range & (1 << REG_PC)) == 0))
+ as_warn (_("writeback of base register is UNPREDICTABLE"));
+ /* Only allowed if base reg not in list for other types. */
+ else if (range & (1 << base_reg))
+ as_warn (_("writeback of base register when in register list is UNPREDICTABLE"));
+ }
+ else /* STM. */
+ {
+ /* Not allowed for type 2. */
+ if (inst.instruction & LDM_TYPE_2_OR_3)
+ as_warn (_("writeback of base register is UNPREDICTABLE"));
+ /* Only allowed if base reg not in list, or first in list. */
+ else if ((range & (1 << base_reg))
+ && (range & ((1 << base_reg) - 1)))
+ as_warn (_("if writeback register is in list, it must be the lowest reg in the list"));
}
- (*str)++;
}
-
- if (!saw_a_flag)
- inst.error = _("no 'a', 'i', or 'f' flags for 'cps'");
}
+/* ARMv5TE load-consecutive (argument parse)
+ Mode is like LDRH.
+
+ LDRccD R, mode
+ STRccD R, mode. */
+
static void
-do_cpsi (char * str)
+do_ldrd (void)
{
- do_cps_flags (&str, /*thumb_p=*/0);
+ constraint (inst.operands[0].reg % 2 != 0,
+ _("first destination register must be even"));
+ constraint (inst.operands[1].present
+ && inst.operands[1].reg != inst.operands[0].reg + 1,
+ _("can only load two consecutive registers"));
+ constraint (inst.operands[0].reg == REG_LR, _("r14 not allowed here"));
+ constraint (!inst.operands[2].isreg, _("'[' expected"));
- if (skip_past_comma (&str) == SUCCESS)
+ if (!inst.operands[1].present)
+ inst.operands[1].reg = inst.operands[0].reg + 1;
+
+ if (inst.instruction & LOAD_BIT)
{
- skip_whitespace (str);
- do_cps_mode (&str);
- }
- end_of_line (str);
-}
+ /* encode_arm_addr_mode_3 will diagnose overlap between the base
+ register and the first register written; we have to diagnose
+ overlap between the base and the second register written here. */
-/* ARM V6T2 bitfield manipulation instructions. */
+ if (inst.operands[2].reg == inst.operands[1].reg
+ && (inst.operands[2].writeback || inst.operands[2].postind))
+ as_warn (_("base register written back, and overlaps "
+ "second destination register"));
-static int
-five_bit_unsigned_immediate (char **str)
-{
- expressionS expr;
-
- skip_whitespace (*str);
- if (!is_immediate_prefix (**str))
- {
- inst.error = _("immediate expression expected");
- return -1;
- }
- (*str)++;
- if (my_get_expression (&expr, str))
- {
- inst.error = _("bad expression");
- return -1;
+ /* For an index-register load, the index register must not overlap the
+ destination (even if not write-back). */
+ else if (inst.operands[2].immisreg
+ && (inst.operands[2].imm == inst.operands[0].reg
+ || inst.operands[2].imm == inst.operands[1].reg))
+ as_warn (_("index register overlaps destination register"));
}
- if (expr.X_op != O_constant)
- {
- inst.error = _("constant expression expected");
- return -1;
- }
- if (expr.X_add_number < 0 || expr.X_add_number > 32)
- {
- inst.error = _("immediate value out of range");
- return -1;
- }
-
- return expr.X_add_number;
+
+ inst.instruction |= inst.operands[0].reg << 12;
+ encode_arm_addr_mode_3 (2, /*is_t=*/FALSE);
}
static void
-bfci_lsb_and_width (char *str)
+do_ldrex (void)
{
- int lsb, width;
+ constraint (!inst.operands[1].isreg || !inst.operands[1].preind
+ || inst.operands[1].postind || inst.operands[1].writeback
+ || inst.operands[1].immisreg || inst.operands[1].shifted
+ || inst.operands[1].negative,
+ _("instruction does not accept this addressing mode"));
- if ((lsb = five_bit_unsigned_immediate (&str)) == -1)
- return;
-
- if (skip_past_comma (&str) == FAIL)
- {
- inst.error = BAD_ARGS;
- return;
- }
- if ((width = five_bit_unsigned_immediate (&str)) == -1)
- return;
-
- end_of_line (str);
+ constraint (inst.operands[1].reg == REG_PC, BAD_PC);
- if (width == 0 || lsb == 32)
- {
- inst.error = _("immediate value out of range");
- return;
- }
- else if (width + lsb > 32)
- {
- inst.error = _("bit-field extends past end of register");
- return;
- }
+ constraint (inst.reloc.exp.X_op != O_constant
+ || inst.reloc.exp.X_add_number != 0,
+ _("offset must be zero in ARM encoding"));
- /* Convert to LSB/MSB and write to register. */
- inst.instruction |= lsb << 7;
- inst.instruction |= (width + lsb - 1) << 16;
+ inst.instruction |= inst.operands[0].reg << 12;
+ inst.instruction |= inst.operands[1].reg << 16;
+ inst.reloc.type = BFD_RELOC_UNUSED;
}
static void
-do_bfc (char *str)
+do_ldrexd (void)
{
- int rd;
+ constraint (inst.operands[0].reg % 2 != 0,
+ _("even register required"));
+ constraint (inst.operands[1].present
+ && inst.operands[1].reg != inst.operands[0].reg + 1,
+ _("can only load two consecutive registers"));
+ /* If op 1 were present and equal to PC, this function wouldn't
+ have been called in the first place. */
+ constraint (inst.operands[0].reg == REG_LR, _("r14 not allowed here"));
- /* Rd. */
- skip_whitespace (str);
- if (((rd = reg_required_here (&str, 12)) == FAIL)
- || (skip_past_comma (&str) == FAIL))
- {
- inst.error = BAD_ARGS;
- return;
- }
- else if (rd == REG_PC)
- {
- inst.error = BAD_PC;
- return;
- }
-
- bfci_lsb_and_width (str);
+ inst.instruction |= inst.operands[0].reg << 12;
+ inst.instruction |= inst.operands[2].reg << 16;
}
static void
-do_bfi (char *str)
+do_ldst (void)
{
- int rd, rm;
-
- /* Rd. */
- skip_whitespace (str);
- if (((rd = reg_required_here (&str, 12)) == FAIL)
- || (skip_past_comma (&str) == FAIL))
- {
- inst.error = BAD_ARGS;
- return;
- }
- else if (rd == REG_PC)
- {
- inst.error = BAD_PC;
+ inst.instruction |= inst.operands[0].reg << 12;
+ if (!inst.operands[1].isreg)
+ if (move_or_literal_pool (0, /*thumb_p=*/FALSE, /*mode_3=*/FALSE))
return;
- }
-
- /* Rm. Accept #0 in this position as an alternative syntax for bfc. */
- skip_whitespace (str);
- if (is_immediate_prefix (*str))
- {
- expressionS expr;
- str++;
- if (my_get_expression (&expr, &str))
- {
- inst.error = _("bad expression");
- return;
- }
- if (expr.X_op != O_constant)
- {
- inst.error = _("constant expression expected");
- return;
- }
- if (expr.X_add_number != 0)
- {
- inst.error = _("immediate value out of range");
- return;
- }
- inst.instruction |= 0x0000000f; /* Rm = PC -> bfc, not bfi. */
- }
- else
- {
- if ((rm = reg_required_here (&str, 0)) == FAIL)
- {
- inst.error = BAD_ARGS;
- return;
- }
- else if (rm == REG_PC)
- {
- inst.error = BAD_PC;
- return;
- }
- }
- if (skip_past_comma (&str) == FAIL)
- {
- inst.error = BAD_ARGS;
- return;
- }
-
- bfci_lsb_and_width (str);
+ encode_arm_addr_mode_2 (1, /*is_t=*/FALSE);
}
static void
-do_bfx (char *str)
+do_ldstt (void)
{
- int lsb, width;
-
- /* Rd. */
- skip_whitespace (str);
- if (reg_required_here (&str, 12) == FAIL
- || skip_past_comma (&str) == FAIL)
+ /* ldrt/strt always use post-indexed addressing. Turn [Rn] into [Rn]! and
+ reject [Rn,...]. */
+ if (inst.operands[1].preind)
{
- inst.error = BAD_ARGS;
- return;
- }
-
- /* Rm. */
- skip_whitespace (str);
- if (reg_required_here (&str, 0) == FAIL
- || skip_past_comma (&str) == FAIL)
- {
- inst.error = BAD_ARGS;
- return;
- }
-
- if ((lsb = five_bit_unsigned_immediate (&str)) == -1)
- return;
+ constraint (inst.reloc.exp.X_op != O_constant ||
+ inst.reloc.exp.X_add_number != 0,
+ _("this instruction requires a post-indexed address"));
- if (skip_past_comma (&str) == FAIL)
- {
- inst.error = BAD_ARGS;
- return;
+ inst.operands[1].preind = 0;
+ inst.operands[1].postind = 1;
+ inst.operands[1].writeback = 1;
}
- if ((width = five_bit_unsigned_immediate (&str)) == -1)
- return;
+ inst.instruction |= inst.operands[0].reg << 12;
+ encode_arm_addr_mode_2 (1, /*is_t=*/TRUE);
+}
- end_of_line (str);
+/* Halfword and signed-byte load/store operations. */
- if (width == 0 || lsb == 32)
- {
- inst.error = _("immediate value out of range");
- return;
- }
- else if (width + lsb > 32)
- {
- inst.error = _("bit-field extends past end of register");
+static void
+do_ldstv4 (void)
+{
+ inst.instruction |= inst.operands[0].reg << 12;
+ if (!inst.operands[1].isreg)
+ if (move_or_literal_pool (0, /*thumb_p=*/FALSE, /*mode_3=*/TRUE))
return;
- }
-
- inst.instruction |= lsb << 7;
- inst.instruction |= (width - 1) << 16;
+ encode_arm_addr_mode_3 (1, /*is_t=*/FALSE);
}
static void
-do_rbit (char *str)
+do_ldsttv4 (void)
{
- /* Rd. */
- skip_whitespace (str);
- if (reg_required_here (&str, 12) == FAIL
- || skip_past_comma (&str) == FAIL)
+ /* ldrt/strt always use post-indexed addressing. Turn [Rn] into [Rn]! and
+ reject [Rn,...]. */
+ if (inst.operands[1].preind)
{
- inst.error = BAD_ARGS;
- return;
- }
+ constraint (inst.reloc.exp.X_op != O_constant ||
+ inst.reloc.exp.X_add_number != 0,
+ _("this instruction requires a post-indexed address"));
- /* Rm. */
- skip_whitespace (str);
- if (reg_required_here (&str, 0) == FAIL)
- {
- inst.error = BAD_ARGS;
- return;
+ inst.operands[1].preind = 0;
+ inst.operands[1].postind = 1;
+ inst.operands[1].writeback = 1;
}
+ inst.instruction |= inst.operands[0].reg << 12;
+ encode_arm_addr_mode_3 (1, /*is_t=*/TRUE);
+}
- end_of_line (str);
+/* Co-processor register load/store.
+ Format: <LDC|STC>{cond}[L] CP#,CRd,<address> */
+static void
+do_lstc (void)
+{
+ inst.instruction |= inst.operands[0].reg << 8;
+ inst.instruction |= inst.operands[1].reg << 12;
+ encode_arm_cp_address (2, TRUE, TRUE, 0);
}
-/* ARM V6T2 16-bit immediate register load: MOV[WT]{cond} Rd, #<imm16>. */
static void
-do_mov16 (char *str)
+do_mlas (void)
{
- int rd;
- expressionS expr;
+ /* This restriction does not apply to mls (nor to mla in v6, but
+ that's hard to detect at present). */
+ if (inst.operands[0].reg == inst.operands[1].reg
+ && !(inst.instruction & 0x00400000))
+ as_tsktsk (_("rd and rm should be different in mla"));
- /* Rd. */
- skip_whitespace (str);
- if (((rd = reg_required_here (&str, 12)) == FAIL)
- || (skip_past_comma (&str) == FAIL))
- {
- inst.error = BAD_ARGS;
- return;
- }
- else if (rd == REG_PC)
- {
- inst.error = BAD_PC;
- return;
- }
+ inst.instruction |= inst.operands[0].reg << 16;
+ inst.instruction |= inst.operands[1].reg;
+ inst.instruction |= inst.operands[2].reg << 8;
+ inst.instruction |= inst.operands[3].reg << 12;
- /* Imm16. */
- skip_whitespace (str);
- if (!is_immediate_prefix (*str))
- {
- inst.error = _("immediate expression expected");
- return;
- }
- str++;
- if (my_get_expression (&expr, &str))
- {
- inst.error = _("bad expression");
- return;
- }
- if (expr.X_op != O_constant)
- {
- inst.error = _("constant expression expected");
- return;
- }
- if (expr.X_add_number < 0 || expr.X_add_number > 65535)
- {
- inst.error = _("immediate value out of range");
- return;
- }
+}
- end_of_line (str);
+static void
+do_mov (void)
+{
+ inst.instruction |= inst.operands[0].reg << 12;
+ encode_arm_shifter_operand (1);
+}
+/* ARM V6T2 16-bit immediate register load: MOV[WT]{cond} Rd, #<imm16>. */
+static void
+do_mov16 (void)
+{
+ inst.instruction |= inst.operands[0].reg << 12;
/* The value is in two pieces: 0:11, 16:19. */
- inst.instruction |= (expr.X_add_number & 0x00000fff);
- inst.instruction |= (expr.X_add_number & 0x0000f000) << 4;
+ inst.instruction |= (inst.operands[1].imm & 0x00000fff);
+ inst.instruction |= (inst.operands[1].imm & 0x0000f000) << 4;
}
-
-
-/* THUMB V5 breakpoint instruction (argument parse)
- BKPT <immed_8>. */
static void
-do_t_bkpt (char * str)
+do_mrs (void)
{
- expressionS expr;
- unsigned long number;
-
- skip_whitespace (str);
-
- /* Allow optional leading '#'. */
- if (is_immediate_prefix (*str))
- str ++;
-
- memset (& expr, '\0', sizeof (expr));
- if (my_get_expression (& expr, & str)
- || (expr.X_op != O_constant
- /* As a convenience we allow 'bkpt' without an operand. */
- && expr.X_op != O_absent))
- {
- inst.error = _("bad expression");
- return;
- }
+ /* mrs only accepts CPSR/SPSR/CPSR_all/SPSR_all. */
+ constraint ((inst.operands[1].imm & (PSR_c|PSR_x|PSR_s|PSR_f))
+ != (PSR_c|PSR_f),
+ _("'CPSR' or 'SPSR' expected"));
+ inst.instruction |= inst.operands[0].reg << 12;
+ inst.instruction |= (inst.operands[1].imm & SPSR_BIT);
+}
- number = expr.X_add_number;
+/* Two possible forms:
+ "{C|S}PSR_<field>, Rm",
+ "{C|S}PSR_f, #expression". */
- /* Check it fits an 8 bit unsigned. */
- if (number != (number & 0xff))
+static void
+do_msr (void)
+{
+ inst.instruction |= inst.operands[0].imm;
+ if (inst.operands[1].isreg)
+ inst.instruction |= inst.operands[1].reg;
+ else
{
- inst.error = _("immediate value out of range");
- return;
+ inst.instruction |= INST_IMMEDIATE;
+ inst.reloc.type = BFD_RELOC_ARM_IMMEDIATE;
+ inst.reloc.pc_rel = 0;
}
-
- inst.instruction |= number;
-
- end_of_line (str);
}
-#ifdef OBJ_ELF
-static bfd_reloc_code_real_type
-arm_parse_reloc (void)
+static void
+do_mul (void)
{
- char id [16];
- char * ip;
- unsigned int i;
- static struct
- {
- char * str;
- int len;
- bfd_reloc_code_real_type reloc;
- }
- reloc_map[] =
- {
-#define MAP(str,reloc) { str, sizeof (str) - 1, reloc }
- MAP ("(got)", BFD_RELOC_ARM_GOT32),
- MAP ("(gotoff)", BFD_RELOC_ARM_GOTOFF),
- /* ScottB: Jan 30, 1998 - Added support for parsing "var(PLT)"
- branch instructions generated by GCC for PLT relocs. */
- MAP ("(plt)", BFD_RELOC_ARM_PLT32),
- MAP ("(target1)", BFD_RELOC_ARM_TARGET1),
- MAP ("(sbrel)", BFD_RELOC_ARM_SBREL32),
- MAP ("(target2)", BFD_RELOC_ARM_TARGET2),
- MAP ("(tlsgd)", BFD_RELOC_ARM_TLS_GD32),
- MAP ("(tlsldm)", BFD_RELOC_ARM_TLS_LDM32),
- MAP ("(tlsldo)", BFD_RELOC_ARM_TLS_LDO32),
- MAP ("(gottpoff)", BFD_RELOC_ARM_TLS_IE32),
- MAP ("(tpoff)", BFD_RELOC_ARM_TLS_LE32),
- { NULL, 0, BFD_RELOC_UNUSED }
-#undef MAP
- };
-
- for (i = 0, ip = input_line_pointer;
- i < sizeof (id) && (ISALNUM (*ip) || ISPUNCT (*ip));
- i++, ip++)
- id[i] = TOLOWER (*ip);
-
- for (i = 0; reloc_map[i].str; i++)
- if (strncmp (id, reloc_map[i].str, reloc_map[i].len) == 0)
- break;
-
- input_line_pointer += reloc_map[i].len;
+ if (!inst.operands[2].present)
+ inst.operands[2].reg = inst.operands[0].reg;
+ inst.instruction |= inst.operands[0].reg << 16;
+ inst.instruction |= inst.operands[1].reg;
+ inst.instruction |= inst.operands[2].reg << 8;
- return reloc_map[i].reloc;
+ if (inst.operands[0].reg == inst.operands[1].reg)
+ as_tsktsk (_("rd and rm should be different in mul"));
}
-#endif
-/* ARM V5 branch-link-exchange (argument parse) for BLX(1) only.
- Expects inst.instruction is set for BLX(1).
- Note: this is cloned from do_branch, and the reloc changed to be a
- new one that can cope with setting one extra bit (the H bit). */
+/* Long Multiply Parser
+ UMULL RdLo, RdHi, Rm, Rs
+ SMULL RdLo, RdHi, Rm, Rs
+ UMLAL RdLo, RdHi, Rm, Rs
+ SMLAL RdLo, RdHi, Rm, Rs. */
static void
-do_branch25 (char * str)
+do_mull (void)
{
- if (my_get_expression (& inst.reloc.exp, & str))
- return;
-
-#ifdef OBJ_ELF
- {
- char * save_in;
-
- /* ScottB: February 5, 1998 */
- /* Check to see of PLT32 reloc required for the instruction. */
+ inst.instruction |= inst.operands[0].reg << 12;
+ inst.instruction |= inst.operands[1].reg << 16;
+ inst.instruction |= inst.operands[2].reg;
+ inst.instruction |= inst.operands[3].reg << 8;
- /* arm_parse_reloc() works on input_line_pointer.
- We actually want to parse the operands to the branch instruction
- passed in 'str'. Save the input pointer and restore it later. */
- save_in = input_line_pointer;
- input_line_pointer = str;
-
- if (inst.reloc.exp.X_op == O_symbol
- && *str == '('
- && arm_parse_reloc () == BFD_RELOC_ARM_PLT32)
- {
- inst.reloc.type = BFD_RELOC_ARM_PLT32;
- inst.reloc.pc_rel = 0;
- /* Modify str to point to after parsed operands, otherwise
- end_of_line() will complain about the (PLT) left in str. */
- str = input_line_pointer;
- }
- else
- {
- inst.reloc.type = BFD_RELOC_ARM_PCREL_BLX;
- inst.reloc.pc_rel = 1;
- }
-
- input_line_pointer = save_in;
- }
-#else
- inst.reloc.type = BFD_RELOC_ARM_PCREL_BLX;
- inst.reloc.pc_rel = 1;
-#endif /* OBJ_ELF */
+ /* rdhi, rdlo and rm must all be different. */
+ if (inst.operands[0].reg == inst.operands[1].reg
+ || inst.operands[0].reg == inst.operands[2].reg
+ || inst.operands[1].reg == inst.operands[2].reg)
+ as_tsktsk (_("rdhi, rdlo and rm must all be different"));
+}
- end_of_line (str);
+static void
+do_nop (void)
+{
+ if (inst.operands[0].present)
+ {
+ /* Architectural NOP hints are CPSR sets with no bits selected. */
+ inst.instruction &= 0xf0000000;
+ inst.instruction |= 0x0320f000 + inst.operands[0].imm;
+ }
}
-/* ARM V5 branch-link-exchange instruction (argument parse)
- BLX <target_addr> ie BLX(1)
- BLX{<condition>} <Rm> ie BLX(2)
- Unfortunately, there are two different opcodes for this mnemonic.
- So, the insns[].value is not used, and the code here zaps values
- into inst.instruction.
- Also, the <target_addr> can be 25 bits, hence has its own reloc. */
+/* ARM V6 Pack Halfword Bottom Top instruction (argument parse).
+ PKHBT {<cond>} <Rd>, <Rn>, <Rm> {, LSL #<shift_imm>}
+ Condition defaults to COND_ALWAYS.
+ Error if Rd, Rn or Rm are R15. */
static void
-do_blx (char * str)
+do_pkhbt (void)
{
- char * mystr = str;
- int rm;
-
- skip_whitespace (mystr);
- rm = reg_required_here (& mystr, 0);
+ inst.instruction |= inst.operands[0].reg << 12;
+ inst.instruction |= inst.operands[1].reg << 16;
+ inst.instruction |= inst.operands[2].reg;
+ if (inst.operands[3].present)
+ encode_arm_shift (3);
+}
- /* The above may set inst.error. Ignore his opinion. */
- inst.error = 0;
+/* ARM V6 PKHTB (Argument Parse). */
- if (rm != FAIL)
+static void
+do_pkhtb (void)
+{
+ if (!inst.operands[3].present)
{
- /* Arg is a register.
- Use the condition code our caller put in inst.instruction.
- Pass ourselves off as a BX with a funny opcode. */
- inst.instruction |= 0x012fff30;
- do_bx (str);
+ /* If the shift specifier is omitted, turn the instruction
+ into pkhbt rd, rm, rn. */
+ inst.instruction &= 0xfff00010;
+ inst.instruction |= inst.operands[0].reg << 12;
+ inst.instruction |= inst.operands[1].reg;
+ inst.instruction |= inst.operands[2].reg << 16;
}
else
{
- /* This must be is BLX <target address>, no condition allowed. */
- if (inst.instruction != COND_ALWAYS)
- {
- inst.error = BAD_COND;
- return;
- }
-
- inst.instruction = 0xfafffffe;
-
- /* Process like a B/BL, but with a different reloc.
- Note that B/BL expecte fffffe, not 0, offset in the opcode table. */
- do_branch25 (str);
+ inst.instruction |= inst.operands[0].reg << 12;
+ inst.instruction |= inst.operands[1].reg << 16;
+ inst.instruction |= inst.operands[2].reg;
+ encode_arm_shift (3);
}
}
-/* ARM V5 Thumb BLX (argument parse)
- BLX <target_addr> which is BLX(1)
- BLX <Rm> which is BLX(2)
- Unfortunately, there are two different opcodes for this mnemonic.
- So, the tinsns[].value is not used, and the code here zaps values
- into inst.instruction. */
+/* ARMv5TE: Preload-Cache
+
+ PLD <addr_mode>
+
+ Syntactically, like LDR with B=1, W=0, L=1. */
static void
-do_t_blx (char * str)
+do_pld (void)
{
- char * mystr = str;
- int rm;
+ constraint (!inst.operands[0].isreg,
+ _("'[' expected after PLD mnemonic"));
+ constraint (inst.operands[0].postind,
+ _("post-indexed expression used in preload instruction"));
+ constraint (inst.operands[0].writeback,
+ _("writeback used in preload instruction"));
+ constraint (!inst.operands[0].preind,
+ _("unindexed addressing used in preload instruction"));
+ inst.instruction |= inst.operands[0].reg;
+ encode_arm_addr_mode_2 (0, /*is_t=*/FALSE);
+}
- skip_whitespace (mystr);
- inst.instruction = 0x4780;
+static void
+do_push_pop (void)
+{
+ inst.operands[1] = inst.operands[0];
+ memset (&inst.operands[0], 0, sizeof inst.operands[0]);
+ inst.operands[0].isreg = 1;
+ inst.operands[0].writeback = 1;
+ inst.operands[0].reg = REG_SP;
+ do_ldmstm ();
+}
- /* Note that this call is to the ARM register recognizer. BLX(2)
- uses the ARM register space, not the Thumb one, so a call to
- thumb_reg() would be wrong. */
- rm = reg_required_here (& mystr, 3);
- inst.error = 0;
+/* ARM V6 RFE (Return from Exception) loads the PC and CPSR from the
+ word at the specified address and the following word
+ respectively.
+ Unconditionally executed.
+ Error if Rn is R15. */
- if (rm != FAIL)
- {
- /* It's BLX(2). The .instruction was zapped with rm & is final. */
- inst.size = 2;
- }
- else
- {
- /* No ARM register. This must be BLX(1). Change the .instruction. */
- inst.instruction = 0xf7ffeffe;
- inst.size = 4;
+static void
+do_rfe (void)
+{
+ inst.instruction |= inst.operands[0].reg << 16;
+ if (inst.operands[0].writeback)
+ inst.instruction |= WRITE_BACK;
+}
- if (my_get_expression (& inst.reloc.exp, & mystr))
- return;
+/* ARM V6 ssat (argument parse). */
- inst.reloc.type = BFD_RELOC_THUMB_PCREL_BLX;
- inst.reloc.pc_rel = 1;
- }
+static void
+do_ssat (void)
+{
+ inst.instruction |= inst.operands[0].reg << 12;
+ inst.instruction |= (inst.operands[1].imm - 1) << 16;
+ inst.instruction |= inst.operands[2].reg;
- end_of_line (mystr);
+ if (inst.operands[3].present)
+ encode_arm_shift (3);
}
-/* ARM V5 breakpoint instruction (argument parse)
- BKPT <16 bit unsigned immediate>
- Instruction is not conditional.
- The bit pattern given in insns[] has the COND_ALWAYS condition,
- and it is an error if the caller tried to override that. */
+/* ARM V6 usat (argument parse). */
static void
-do_bkpt (char * str)
+do_usat (void)
{
- expressionS expr;
- unsigned long number;
+ inst.instruction |= inst.operands[0].reg << 12;
+ inst.instruction |= inst.operands[1].imm << 16;
+ inst.instruction |= inst.operands[2].reg;
- skip_whitespace (str);
-
- /* Allow optional leading '#'. */
- if (is_immediate_prefix (* str))
- str++;
-
- memset (& expr, '\0', sizeof (expr));
-
- if (my_get_expression (& expr, & str)
- || (expr.X_op != O_constant
- /* As a convenience we allow 'bkpt' without an operand. */
- && expr.X_op != O_absent))
- {
- inst.error = _("bad expression");
- return;
- }
-
- number = expr.X_add_number;
-
- /* Check it fits a 16 bit unsigned. */
- if (number != (number & 0xffff))
- {
- inst.error = _("immediate value out of range");
- return;
- }
-
- /* Top 12 of 16 bits to bits 19:8. */
- inst.instruction |= (number & 0xfff0) << 4;
-
- /* Bottom 4 of 16 bits to bits 3:0. */
- inst.instruction |= number & 0xf;
-
- end_of_line (str);
+ if (inst.operands[3].present)
+ encode_arm_shift (3);
}
-/* THUMB CPS instruction (argument parse). */
+/* ARM V6 ssat16 (argument parse). */
static void
-do_t_cps (char * str)
+do_ssat16 (void)
{
- do_cps_flags (&str, /*thumb_p=*/1);
- end_of_line (str);
+ inst.instruction |= inst.operands[0].reg << 12;
+ inst.instruction |= ((inst.operands[1].imm - 1) << 16);
+ inst.instruction |= inst.operands[2].reg;
}
-/* Parse and validate that a register is of the right form, this saves
- repeated checking of this information in many similar cases.
- Unlike the 32-bit case we do not insert the register into the opcode
- here, since the position is often unknown until the full instruction
- has been parsed. */
-
-static int
-thumb_reg (char ** strp, int hi_lo)
+static void
+do_usat16 (void)
{
- int reg;
-
- if ((reg = reg_required_here (strp, -1)) == FAIL)
- return FAIL;
-
- switch (hi_lo)
- {
- case THUMB_REG_LO:
- if (reg > 7)
- {
- inst.error = _("lo register required");
- return FAIL;
- }
- break;
+ inst.instruction |= inst.operands[0].reg << 12;
+ inst.instruction |= inst.operands[1].imm << 16;
+ inst.instruction |= inst.operands[2].reg;
+}
- case THUMB_REG_HI:
- if (reg < 8)
- {
- inst.error = _("hi register required");
- return FAIL;
- }
- break;
+/* ARM V6 SETEND (argument parse). Sets the E bit in the CPSR while
+ preserving the other bits.
- default:
- break;
- }
+ setend <endian_specifier>, where <endian_specifier> is either
+ BE or LE. */
- return reg;
+static void
+do_setend (void)
+{
+ if (inst.operands[0].imm)
+ inst.instruction |= 0x200;
}
static void
-thumb_mov_compare (char * str, int move)
+do_shift (void)
{
- int Rd, Rs = FAIL;
-
- skip_whitespace (str);
+ unsigned int Rm = (inst.operands[1].present
+ ? inst.operands[1].reg
+ : inst.operands[0].reg);
- if ((Rd = thumb_reg (&str, THUMB_REG_ANY)) == FAIL
- || skip_past_comma (&str) == FAIL)
+ inst.instruction |= inst.operands[0].reg << 12;
+ inst.instruction |= Rm;
+ if (inst.operands[2].isreg) /* Rd, {Rm,} Rs */
{
- if (! inst.error)
- inst.error = BAD_ARGS;
- return;
- }
-
- if (move != THUMB_CPY && is_immediate_prefix (*str))
- {
- str++;
- if (my_get_expression (&inst.reloc.exp, &str))
- return;
- }
- else if ((Rs = thumb_reg (&str, THUMB_REG_ANY)) == FAIL)
- return;
-
- if (Rs != FAIL)
- {
- if (move != THUMB_CPY && Rs < 8 && Rd < 8)
- {
- if (move == THUMB_MOVE)
- /* A move of two lowregs is encoded as ADD Rd, Rs, #0
- since a MOV instruction produces unpredictable results. */
- inst.instruction = T_OPCODE_ADD_I3;
- else
- inst.instruction = T_OPCODE_CMP_LR;
- inst.instruction |= Rd | (Rs << 3);
- }
- else
- {
- if (move == THUMB_MOVE)
- inst.instruction = T_OPCODE_MOV_HR;
- else if (move != THUMB_CPY)
- inst.instruction = T_OPCODE_CMP_HR;
-
- if (Rd > 7)
- inst.instruction |= THUMB_H1;
-
- if (Rs > 7)
- inst.instruction |= THUMB_H2;
-
- inst.instruction |= (Rd & 7) | ((Rs & 7) << 3);
- }
+ constraint (inst.operands[0].reg != Rm,
+ _("source1 and dest must be same register"));
+ inst.instruction |= inst.operands[2].reg << 8;
+ inst.instruction |= SHIFT_BY_REG;
}
else
- {
- if (Rd > 7)
- {
- inst.error = _("only lo regs allowed with immediate");
- return;
- }
-
- if (move == THUMB_MOVE)
- inst.instruction = T_OPCODE_MOV_I8;
- else
- inst.instruction = T_OPCODE_CMP_I8;
-
- inst.instruction |= Rd << 8;
-
- if (inst.reloc.exp.X_op != O_constant)
- inst.reloc.type = BFD_RELOC_ARM_THUMB_IMM;
- else
- {
- unsigned value = inst.reloc.exp.X_add_number;
-
- if (value > 255)
- {
- inst.error = _("invalid immediate");
- return;
- }
-
- inst.instruction |= value;
- }
- }
-
- end_of_line (str);
+ inst.reloc.type = BFD_RELOC_ARM_SHIFT_IMM;
}
-/* THUMB CPY instruction (argument parse). */
-
static void
-do_t_cpy (char * str)
+do_smi (void)
{
- thumb_mov_compare (str, THUMB_CPY);
+ inst.reloc.type = BFD_RELOC_ARM_SMI;
+ inst.reloc.pc_rel = 0;
}
-/* THUMB SETEND instruction (argument parse). */
-
static void
-do_t_setend (char * str)
+do_swi (void)
{
- if (do_endian_specifier (str))
- inst.instruction |= 0x8;
+ inst.reloc.type = BFD_RELOC_ARM_SWI;
+ inst.reloc.pc_rel = 0;
}
-/* Parse INSN_TYPE insn STR having a possible IMMEDIATE_SIZE immediate. */
+/* ARM V5E (El Segundo) signed-multiply-accumulate (argument parse)
+ SMLAxy{cond} Rd,Rm,Rs,Rn
+ SMLAWy{cond} Rd,Rm,Rs,Rn
+ Error if any register is R15. */
-static unsigned long
-check_iwmmxt_insn (char * str,
- enum iwmmxt_insn_type insn_type,
- int immediate_size)
+static void
+do_smla (void)
{
- int reg = 0;
- const char * inst_error;
- expressionS expr;
- unsigned long number;
-
- inst_error = inst.error;
- if (!inst.error)
- inst.error = BAD_ARGS;
- skip_whitespace (str);
-
- switch (insn_type)
- {
- case check_rd:
- if ((reg = reg_required_here (&str, 12)) == FAIL)
- return FAIL;
- break;
-
- case check_wr:
- if ((wreg_required_here (&str, 0, IWMMXT_REG_WR)) == FAIL)
- return FAIL;
- break;
-
- case check_wrwr:
- if ((wreg_required_here (&str, 12, IWMMXT_REG_WR) == FAIL
- || skip_past_comma (&str) == FAIL
- || wreg_required_here (&str, 16, IWMMXT_REG_WR) == FAIL))
- return FAIL;
- break;
-
- case check_wrwrwr:
- if ((wreg_required_here (&str, 12, IWMMXT_REG_WR) == FAIL
- || skip_past_comma (&str) == FAIL
- || wreg_required_here (&str, 16, IWMMXT_REG_WR) == FAIL
- || skip_past_comma (&str) == FAIL
- || wreg_required_here (&str, 0, IWMMXT_REG_WR) == FAIL))
- return FAIL;
- break;
-
- case check_wrwrwcg:
- if ((wreg_required_here (&str, 12, IWMMXT_REG_WR) == FAIL
- || skip_past_comma (&str) == FAIL
- || wreg_required_here (&str, 16, IWMMXT_REG_WR) == FAIL
- || skip_past_comma (&str) == FAIL
- || wreg_required_here (&str, 0, IWMMXT_REG_WCG) == FAIL))
- return FAIL;
- break;
-
- case check_tbcst:
- if ((wreg_required_here (&str, 16, IWMMXT_REG_WR) == FAIL
- || skip_past_comma (&str) == FAIL
- || reg_required_here (&str, 12) == FAIL))
- return FAIL;
- break;
-
- case check_tmovmsk:
- if ((reg_required_here (&str, 12) == FAIL
- || skip_past_comma (&str) == FAIL
- || wreg_required_here (&str, 16, IWMMXT_REG_WR) == FAIL))
- return FAIL;
- break;
-
- case check_tmia:
- if ((wreg_required_here (&str, 5, IWMMXT_REG_WR) == FAIL
- || skip_past_comma (&str) == FAIL
- || reg_required_here (&str, 0) == FAIL
- || skip_past_comma (&str) == FAIL
- || reg_required_here (&str, 12) == FAIL))
- return FAIL;
- break;
-
- case check_tmcrr:
- if ((wreg_required_here (&str, 0, IWMMXT_REG_WR) == FAIL
- || skip_past_comma (&str) == FAIL
- || reg_required_here (&str, 12) == FAIL
- || skip_past_comma (&str) == FAIL
- || reg_required_here (&str, 16) == FAIL))
- return FAIL;
- break;
-
- case check_tmrrc:
- if ((reg_required_here (&str, 12) == FAIL
- || skip_past_comma (&str) == FAIL
- || reg_required_here (&str, 16) == FAIL
- || skip_past_comma (&str) == FAIL
- || wreg_required_here (&str, 0, IWMMXT_REG_WR) == FAIL))
- return FAIL;
- break;
+ inst.instruction |= inst.operands[0].reg << 16;
+ inst.instruction |= inst.operands[1].reg;
+ inst.instruction |= inst.operands[2].reg << 8;
+ inst.instruction |= inst.operands[3].reg << 12;
+}
- case check_tmcr:
- if ((wreg_required_here (&str, 16, IWMMXT_REG_WC) == FAIL
- || skip_past_comma (&str) == FAIL
- || reg_required_here (&str, 12) == FAIL))
- return FAIL;
- break;
+/* ARM V5E (El Segundo) signed-multiply-accumulate-long (argument parse)
+ SMLALxy{cond} Rdlo,Rdhi,Rm,Rs
+ Error if any register is R15.
+ Warning if Rdlo == Rdhi. */
- case check_tmrc:
- if ((reg_required_here (&str, 12) == FAIL
- || skip_past_comma (&str) == FAIL
- || wreg_required_here (&str, 16, IWMMXT_REG_WC) == FAIL))
- return FAIL;
- break;
+static void
+do_smlal (void)
+{
+ inst.instruction |= inst.operands[0].reg << 12;
+ inst.instruction |= inst.operands[1].reg << 16;
+ inst.instruction |= inst.operands[2].reg;
+ inst.instruction |= inst.operands[3].reg << 8;
- case check_tinsr:
- if ((wreg_required_here (&str, 16, IWMMXT_REG_WR) == FAIL
- || skip_past_comma (&str) == FAIL
- || reg_required_here (&str, 12) == FAIL
- || skip_past_comma (&str) == FAIL))
- return FAIL;
- break;
+ if (inst.operands[0].reg == inst.operands[1].reg)
+ as_tsktsk (_("rdhi and rdlo must be different"));
+}
- case check_textrc:
- if ((reg_required_here (&str, 12) == FAIL
- || skip_past_comma (&str) == FAIL))
- return FAIL;
- break;
+/* ARM V5E (El Segundo) signed-multiply (argument parse)
+ SMULxy{cond} Rd,Rm,Rs
+ Error if any register is R15. */
- case check_waligni:
- if ((wreg_required_here (&str, 12, IWMMXT_REG_WR) == FAIL
- || skip_past_comma (&str) == FAIL
- || wreg_required_here (&str, 16, IWMMXT_REG_WR) == FAIL
- || skip_past_comma (&str) == FAIL
- || wreg_required_here (&str, 0, IWMMXT_REG_WR) == FAIL
- || skip_past_comma (&str) == FAIL))
- return FAIL;
- break;
+static void
+do_smul (void)
+{
+ inst.instruction |= inst.operands[0].reg << 16;
+ inst.instruction |= inst.operands[1].reg;
+ inst.instruction |= inst.operands[2].reg << 8;
+}
- case check_textrm:
- if ((reg_required_here (&str, 12) == FAIL
- || skip_past_comma (&str) == FAIL
- || wreg_required_here (&str, 16, IWMMXT_REG_WR) == FAIL
- || skip_past_comma (&str) == FAIL))
- return FAIL;
- break;
+/* ARM V6 srs (argument parse). */
- case check_wshufh:
- if ((wreg_required_here (&str, 12, IWMMXT_REG_WR) == FAIL
- || skip_past_comma (&str) == FAIL
- || wreg_required_here (&str, 16, IWMMXT_REG_WR) == FAIL
- || skip_past_comma (&str) == FAIL))
- return FAIL;
- break;
- }
+static void
+do_srs (void)
+{
+ inst.instruction |= inst.operands[0].imm;
+ if (inst.operands[0].writeback)
+ inst.instruction |= WRITE_BACK;
+}
- if (immediate_size == 0)
- {
- end_of_line (str);
- inst.error = inst_error;
- return reg;
- }
- else
- {
- skip_whitespace (str);
+/* ARM V6 strex (argument parse). */
- /* Allow optional leading '#'. */
- if (is_immediate_prefix (* str))
- str++;
+static void
+do_strex (void)
+{
+ constraint (!inst.operands[2].isreg || !inst.operands[2].preind
+ || inst.operands[2].postind || inst.operands[2].writeback
+ || inst.operands[2].immisreg || inst.operands[2].shifted
+ || inst.operands[2].negative,
+ _("instruction does not accept this addressing mode"));
- memset (& expr, '\0', sizeof (expr));
+ constraint (inst.operands[2].reg == REG_PC, BAD_PC);
- if (my_get_expression (& expr, & str) || (expr.X_op != O_constant))
- {
- inst.error = _("bad or missing expression");
- return FAIL;
- }
+ constraint (inst.operands[0].reg == inst.operands[1].reg
+ || inst.operands[0].reg == inst.operands[2].reg, BAD_OVERLAP);
- number = expr.X_add_number;
+ constraint (inst.reloc.exp.X_op != O_constant
+ || inst.reloc.exp.X_add_number != 0,
+ _("offset must be zero in ARM encoding"));
- if (number != (number & immediate_size))
- {
- inst.error = _("immediate value out of range");
- return FAIL;
- }
- end_of_line (str);
- inst.error = inst_error;
- return number;
- }
+ inst.instruction |= inst.operands[0].reg << 12;
+ inst.instruction |= inst.operands[1].reg;
+ inst.instruction |= inst.operands[2].reg << 16;
+ inst.reloc.type = BFD_RELOC_UNUSED;
}
static void
-do_iwmmxt_byte_addr (char * str)
+do_strexd (void)
{
- int op = (inst.instruction & 0x300) >> 8;
- int reg;
-
- inst.instruction &= ~0x300;
- inst.instruction |= (op & 1) << 22 | (op & 2) << 7;
-
- skip_whitespace (str);
+ constraint (inst.operands[1].reg % 2 != 0,
+ _("even register required"));
+ constraint (inst.operands[2].present
+ && inst.operands[2].reg != inst.operands[1].reg + 1,
+ _("can only store two consecutive registers"));
+ /* If op 2 were present and equal to PC, this function wouldn't
+ have been called in the first place. */
+ constraint (inst.operands[1].reg == REG_LR, _("r14 not allowed here"));
- if ((reg = wreg_required_here (&str, 12, IWMMXT_REG_WR_OR_WC)) == FAIL
- || skip_past_comma (& str) == FAIL
- || cp_byte_address_required_here (&str) == FAIL)
- {
- if (! inst.error)
- inst.error = BAD_ARGS;
- }
- else
- end_of_line (str);
+ constraint (inst.operands[0].reg == inst.operands[1].reg
+ || inst.operands[0].reg == inst.operands[1].reg + 1
+ || inst.operands[0].reg == inst.operands[3].reg,
+ BAD_OVERLAP);
- if (wc_register (reg))
- {
- as_bad (_("non-word size not supported with control register"));
- inst.instruction |= 0xf0000100;
- inst.instruction &= ~0x00400000;
- }
+ inst.instruction |= inst.operands[0].reg << 12;
+ inst.instruction |= inst.operands[1].reg;
+ inst.instruction |= inst.operands[3].reg << 16;
}
+/* ARM V6 SXTAH extracts a 16-bit value from a register, sign
+ extends it to 32-bits, and adds the result to a value in another
+ register. You can specify a rotation by 0, 8, 16, or 24 bits
+ before extracting the 16-bit value.
+ SXTAH{<cond>} <Rd>, <Rn>, <Rm>{, <rotation>}
+ Condition defaults to COND_ALWAYS.
+ Error if any register uses R15. */
+
static void
-do_iwmmxt_tandc (char * str)
+do_sxtah (void)
{
- int reg;
+ inst.instruction |= inst.operands[0].reg << 12;
+ inst.instruction |= inst.operands[1].reg << 16;
+ inst.instruction |= inst.operands[2].reg;
+ inst.instruction |= inst.operands[3].imm << 10;
+}
- reg = check_iwmmxt_insn (str, check_rd, 0);
+/* ARM V6 SXTH.
- if (reg != REG_PC && !inst.error)
- inst.error = _("only r15 allowed here");
-}
+ SXTH {<cond>} <Rd>, <Rm>{, <rotation>}
+ Condition defaults to COND_ALWAYS.
+ Error if any register uses R15. */
static void
-do_iwmmxt_tbcst (char * str)
+do_sxth (void)
{
- check_iwmmxt_insn (str, check_tbcst, 0);
+ inst.instruction |= inst.operands[0].reg << 12;
+ inst.instruction |= inst.operands[1].reg;
+ inst.instruction |= inst.operands[2].imm << 10;
}
+\f
+/* VFP instructions. In a logical order: SP variant first, monad
+ before dyad, arithmetic then move then load/store. */
static void
-do_iwmmxt_textrc (char * str)
+do_vfp_sp_monadic (void)
{
- unsigned long number;
-
- if ((number = check_iwmmxt_insn (str, check_textrc, 7)) == (unsigned long) FAIL)
- return;
-
- inst.instruction |= number & 0x7;
+ encode_arm_vfp_sp_reg (inst.operands[0].reg, VFP_REG_Sd);
+ encode_arm_vfp_sp_reg (inst.operands[1].reg, VFP_REG_Sm);
}
static void
-do_iwmmxt_textrm (char * str)
+do_vfp_sp_dyadic (void)
{
- unsigned long number;
-
- if ((number = check_iwmmxt_insn (str, check_textrm, 7)) == (unsigned long) FAIL)
- return;
-
- inst.instruction |= number & 0x7;
+ encode_arm_vfp_sp_reg (inst.operands[0].reg, VFP_REG_Sd);
+ encode_arm_vfp_sp_reg (inst.operands[1].reg, VFP_REG_Sn);
+ encode_arm_vfp_sp_reg (inst.operands[2].reg, VFP_REG_Sm);
}
static void
-do_iwmmxt_tinsr (char * str)
+do_vfp_sp_compare_z (void)
{
- unsigned long number;
-
- if ((number = check_iwmmxt_insn (str, check_tinsr, 7)) == (unsigned long) FAIL)
- return;
-
- inst.instruction |= number & 0x7;
+ encode_arm_vfp_sp_reg (inst.operands[0].reg, VFP_REG_Sd);
}
static void
-do_iwmmxt_tmcr (char * str)
+do_vfp_dp_sp_cvt (void)
{
- check_iwmmxt_insn (str, check_tmcr, 0);
+ inst.instruction |= inst.operands[0].reg << 12;
+ encode_arm_vfp_sp_reg (inst.operands[1].reg, VFP_REG_Sm);
}
static void
-do_iwmmxt_tmcrr (char * str)
+do_vfp_sp_dp_cvt (void)
{
- check_iwmmxt_insn (str, check_tmcrr, 0);
+ encode_arm_vfp_sp_reg (inst.operands[0].reg, VFP_REG_Sd);
+ inst.instruction |= inst.operands[1].reg;
}
static void
-do_iwmmxt_tmia (char * str)
+do_vfp_reg_from_sp (void)
{
- check_iwmmxt_insn (str, check_tmia, 0);
+ inst.instruction |= inst.operands[0].reg << 12;
+ encode_arm_vfp_sp_reg (inst.operands[1].reg, VFP_REG_Sn);
}
static void
-do_iwmmxt_tmovmsk (char * str)
+do_vfp_reg2_from_sp2 (void)
{
- check_iwmmxt_insn (str, check_tmovmsk, 0);
+ constraint (inst.operands[2].imm != 2,
+ _("only two consecutive VFP SP registers allowed here"));
+ inst.instruction |= inst.operands[0].reg << 12;
+ inst.instruction |= inst.operands[1].reg << 16;
+ encode_arm_vfp_sp_reg (inst.operands[2].reg, VFP_REG_Sm);
}
static void
-do_iwmmxt_tmrc (char * str)
+do_vfp_sp_from_reg (void)
{
- check_iwmmxt_insn (str, check_tmrc, 0);
+ encode_arm_vfp_sp_reg (inst.operands[0].reg, VFP_REG_Sn);
+ inst.instruction |= inst.operands[1].reg << 12;
}
static void
-do_iwmmxt_tmrrc (char * str)
+do_vfp_sp2_from_reg2 (void)
{
- check_iwmmxt_insn (str, check_tmrrc, 0);
+ constraint (inst.operands[0].imm != 2,
+ _("only two consecutive VFP SP registers allowed here"));
+ encode_arm_vfp_sp_reg (inst.operands[0].reg, VFP_REG_Sm);
+ inst.instruction |= inst.operands[1].reg << 12;
+ inst.instruction |= inst.operands[2].reg << 16;
}
static void
-do_iwmmxt_torc (char * str)
+do_vfp_sp_ldst (void)
{
- check_iwmmxt_insn (str, check_rd, 0);
+ encode_arm_vfp_sp_reg (inst.operands[0].reg, VFP_REG_Sd);
+ encode_arm_cp_address (1, FALSE, TRUE, 0);
}
static void
-do_iwmmxt_waligni (char * str)
+do_vfp_dp_ldst (void)
{
- unsigned long number;
-
- if ((number = check_iwmmxt_insn (str, check_waligni, 7)) == (unsigned long) FAIL)
- return;
-
- inst.instruction |= ((number & 0x7) << 20);
+ inst.instruction |= inst.operands[0].reg << 12;
+ encode_arm_cp_address (1, FALSE, TRUE, 0);
}
+
static void
-do_iwmmxt_wmov (char * str)
+vfp_sp_ldstm (enum vfp_ldstm_type ldstm_type)
{
- if (check_iwmmxt_insn (str, check_wrwr, 0) == (unsigned long) FAIL)
- return;
-
- inst.instruction |= ((inst.instruction >> 16) & 0xf);
+ if (inst.operands[0].writeback)
+ inst.instruction |= WRITE_BACK;
+ else
+ constraint (ldstm_type != VFP_LDSTMIA,
+ _("this addressing mode requires base-register writeback"));
+ inst.instruction |= inst.operands[0].reg << 16;
+ encode_arm_vfp_sp_reg (inst.operands[1].reg, VFP_REG_Sd);
+ inst.instruction |= inst.operands[1].imm;
}
static void
-do_iwmmxt_word_addr (char * str)
+vfp_dp_ldstm (enum vfp_ldstm_type ldstm_type)
{
- int op = (inst.instruction & 0x300) >> 8;
- int reg;
+ int count;
- inst.instruction &= ~0x300;
- inst.instruction |= (op & 1) << 22 | (op & 2) << 7;
+ if (inst.operands[0].writeback)
+ inst.instruction |= WRITE_BACK;
+ else
+ constraint (ldstm_type != VFP_LDSTMIA && ldstm_type != VFP_LDSTMIAX,
+ _("this addressing mode requires base-register writeback"));
- skip_whitespace (str);
+ inst.instruction |= inst.operands[0].reg << 16;
+ inst.instruction |= inst.operands[1].reg << 12;
- if ((reg = wreg_required_here (&str, 12, IWMMXT_REG_WR_OR_WC)) == FAIL
- || skip_past_comma (& str) == FAIL
- || cp_address_required_here (& str, CP_WB_OK) == FAIL)
- {
- if (! inst.error)
- inst.error = BAD_ARGS;
- }
- else
- end_of_line (str);
+ count = inst.operands[1].imm << 1;
+ if (ldstm_type == VFP_LDSTMIAX || ldstm_type == VFP_LDSTMDBX)
+ count += 1;
- if (wc_register (reg))
- {
- if ((inst.instruction & COND_MASK) != COND_ALWAYS)
- as_bad (_("conditional execution not supported with control register"));
- if (op != 2)
- as_bad (_("non-word size not supported with control register"));
- inst.instruction |= 0xf0000100;
- inst.instruction &= ~0x00400000;
- }
+ inst.instruction |= count;
}
static void
-do_iwmmxt_wrwr (char * str)
+do_vfp_sp_ldstmia (void)
{
- check_iwmmxt_insn (str, check_wrwr, 0);
+ vfp_sp_ldstm (VFP_LDSTMIA);
}
static void
-do_iwmmxt_wrwrwcg (char * str)
+do_vfp_sp_ldstmdb (void)
{
- check_iwmmxt_insn (str, check_wrwrwcg, 0);
+ vfp_sp_ldstm (VFP_LDSTMDB);
}
static void
-do_iwmmxt_wrwrwr (char * str)
+do_vfp_dp_ldstmia (void)
{
- check_iwmmxt_insn (str, check_wrwrwr, 0);
+ vfp_dp_ldstm (VFP_LDSTMIA);
}
static void
-do_iwmmxt_wshufh (char * str)
+do_vfp_dp_ldstmdb (void)
{
- unsigned long number;
-
- if ((number = check_iwmmxt_insn (str, check_wshufh, 0xff)) == (unsigned long) FAIL)
- return;
-
- inst.instruction |= ((number & 0xf0) << 16) | (number & 0xf);
+ vfp_dp_ldstm (VFP_LDSTMDB);
}
static void
-do_iwmmxt_wzero (char * str)
+do_vfp_xp_ldstmia (void)
{
- if (check_iwmmxt_insn (str, check_wr, 0) == (unsigned long) FAIL)
- return;
+ vfp_dp_ldstm (VFP_LDSTMIAX);
+}
- inst.instruction |= ((inst.instruction & 0xf) << 12) | ((inst.instruction & 0xf) << 16);
+static void
+do_vfp_xp_ldstmdb (void)
+{
+ vfp_dp_ldstm (VFP_LDSTMDBX);
}
+\f
+/* FPA instructions. Also in a logical order. */
-/* Xscale multiply-accumulate (argument parse)
- MIAcc acc0,Rm,Rs
- MIAPHcc acc0,Rm,Rs
- MIAxycc acc0,Rm,Rs. */
+static void
+do_fpa_cmp (void)
+{
+ inst.instruction |= inst.operands[0].reg << 16;
+ inst.instruction |= inst.operands[1].reg;
+}
static void
-do_xsc_mia (char * str)
+do_fpa_ldmstm (void)
{
- int rs;
- int rm;
+ inst.instruction |= inst.operands[0].reg << 12;
+ switch (inst.operands[1].imm)
+ {
+ case 1: inst.instruction |= CP_T_X; break;
+ case 2: inst.instruction |= CP_T_Y; break;
+ case 3: inst.instruction |= CP_T_Y | CP_T_X; break;
+ case 4: break;
+ default: abort ();
+ }
- if (accum0_required_here (& str) == FAIL)
- inst.error = ERR_NO_ACCUM;
+ if (inst.instruction & (PRE_INDEX | INDEX_UP))
+ {
+ /* The instruction specified "ea" or "fd", so we can only accept
+ [Rn]{!}. The instruction does not really support stacking or
+ unstacking, so we have to emulate these by setting appropriate
+ bits and offsets. */
+ constraint (inst.reloc.exp.X_op != O_constant
+ || inst.reloc.exp.X_add_number != 0,
+ _("this instruction does not support indexing"));
- else if (skip_past_comma (& str) == FAIL
- || (rm = reg_required_here (& str, 0)) == FAIL)
- inst.error = BAD_ARGS;
+ if ((inst.instruction & PRE_INDEX) || inst.operands[2].writeback)
+ inst.reloc.exp.X_add_number = 12 * inst.operands[1].imm;
- else if (skip_past_comma (& str) == FAIL
- || (rs = reg_required_here (& str, 12)) == FAIL)
- inst.error = BAD_ARGS;
+ if (!(inst.instruction & INDEX_UP))
+ inst.reloc.exp.X_add_number = -inst.reloc.exp.X_add_number;
- /* inst.instruction has now been zapped with both rm and rs. */
- else if (rm == REG_PC || rs == REG_PC)
- inst.error = BAD_PC; /* Undefined result if rm or rs is R15. */
+ if (!(inst.instruction & PRE_INDEX) && inst.operands[2].writeback)
+ {
+ inst.operands[2].preind = 0;
+ inst.operands[2].postind = 1;
+ }
+ }
- else
- end_of_line (str);
+ encode_arm_cp_address (2, TRUE, TRUE, 0);
}
+\f
+/* iWMMXt instructions: strictly in alphabetical order. */
-/* Xscale move-accumulator-register (argument parse)
+static void
+do_iwmmxt_tandorc (void)
+{
+ constraint (inst.operands[0].reg != REG_PC, _("only r15 allowed here"));
+}
- MARcc acc0,RdLo,RdHi. */
+static void
+do_iwmmxt_textrc (void)
+{
+ inst.instruction |= inst.operands[0].reg << 12;
+ inst.instruction |= inst.operands[1].imm;
+}
static void
-do_xsc_mar (char * str)
+do_iwmmxt_textrm (void)
{
- int rdlo, rdhi;
+ inst.instruction |= inst.operands[0].reg << 12;
+ inst.instruction |= inst.operands[1].reg << 16;
+ inst.instruction |= inst.operands[2].imm;
+}
- if (accum0_required_here (& str) == FAIL)
- inst.error = ERR_NO_ACCUM;
+static void
+do_iwmmxt_tinsr (void)
+{
+ inst.instruction |= inst.operands[0].reg << 16;
+ inst.instruction |= inst.operands[1].reg << 12;
+ inst.instruction |= inst.operands[2].imm;
+}
- else if (skip_past_comma (& str) == FAIL
- || (rdlo = reg_required_here (& str, 12)) == FAIL)
- inst.error = BAD_ARGS;
+static void
+do_iwmmxt_tmia (void)
+{
+ inst.instruction |= inst.operands[0].reg << 5;
+ inst.instruction |= inst.operands[1].reg;
+ inst.instruction |= inst.operands[2].reg << 12;
+}
- else if (skip_past_comma (& str) == FAIL
- || (rdhi = reg_required_here (& str, 16)) == FAIL)
- inst.error = BAD_ARGS;
+static void
+do_iwmmxt_waligni (void)
+{
+ inst.instruction |= inst.operands[0].reg << 12;
+ inst.instruction |= inst.operands[1].reg << 16;
+ inst.instruction |= inst.operands[2].reg;
+ inst.instruction |= inst.operands[3].imm << 20;
+}
- /* inst.instruction has now been zapped with both rdlo and rdhi. */
- else if (rdlo == REG_PC || rdhi == REG_PC)
- inst.error = BAD_PC; /* Undefined result if rdlo or rdhi is R15. */
+static void
+do_iwmmxt_wmov (void)
+{
+ /* WMOV rD, rN is an alias for WOR rD, rN, rN. */
+ inst.instruction |= inst.operands[0].reg << 12;
+ inst.instruction |= inst.operands[1].reg << 16;
+ inst.instruction |= inst.operands[1].reg;
+}
- else
- end_of_line (str);
+static void
+do_iwmmxt_wldstbh (void)
+{
+ inst.instruction |= inst.operands[0].reg << 12;
+ inst.reloc.exp.X_add_number *= 4;
+ encode_arm_cp_address (1, TRUE, FALSE, BFD_RELOC_ARM_CP_OFF_IMM_S2);
}
-/* Xscale move-register-accumulator (argument parse)
+static void
+do_iwmmxt_wldstw (void)
+{
+ /* RIWR_RIWC clears .isreg for a control register. */
+ if (!inst.operands[0].isreg)
+ {
+ constraint (inst.cond != COND_ALWAYS, BAD_COND);
+ inst.instruction |= 0xf0000000;
+ }
- MRAcc RdLo,RdHi,acc0. */
+ inst.instruction |= inst.operands[0].reg << 12;
+ encode_arm_cp_address (1, TRUE, TRUE, 0);
+}
static void
-do_xsc_mra (char * str)
+do_iwmmxt_wldstd (void)
{
- int rdlo;
- int rdhi;
+ inst.instruction |= inst.operands[0].reg << 12;
+ encode_arm_cp_address (1, TRUE, FALSE, BFD_RELOC_ARM_CP_OFF_IMM_S2);
+}
- skip_whitespace (str);
+static void
+do_iwmmxt_wshufh (void)
+{
+ inst.instruction |= inst.operands[0].reg << 12;
+ inst.instruction |= inst.operands[1].reg << 16;
+ inst.instruction |= ((inst.operands[2].imm & 0xf0) << 16);
+ inst.instruction |= (inst.operands[2].imm & 0x0f);
+}
- if ((rdlo = reg_required_here (& str, 12)) == FAIL)
- inst.error = BAD_ARGS;
+static void
+do_iwmmxt_wzero (void)
+{
+ /* WZERO reg is an alias for WANDN reg, reg, reg. */
+ inst.instruction |= inst.operands[0].reg;
+ inst.instruction |= inst.operands[0].reg << 12;
+ inst.instruction |= inst.operands[0].reg << 16;
+}
+\f
+/* Cirrus Maverick instructions. Simple 2-, 3-, and 4-register
+ operations first, then control, shift, and load/store. */
- else if (skip_past_comma (& str) == FAIL
- || (rdhi = reg_required_here (& str, 16)) == FAIL)
- inst.error = BAD_ARGS;
+/* Insns like "foo X,Y,Z". */
- else if (skip_past_comma (& str) == FAIL
- || accum0_required_here (& str) == FAIL)
- inst.error = ERR_NO_ACCUM;
+static void
+do_mav_triple (void)
+{
+ inst.instruction |= inst.operands[0].reg << 16;
+ inst.instruction |= inst.operands[1].reg;
+ inst.instruction |= inst.operands[2].reg << 12;
+}
- /* inst.instruction has now been zapped with both rdlo and rdhi. */
- else if (rdlo == rdhi)
- inst.error = BAD_ARGS; /* Undefined result if 2 writes to same reg. */
+/* Insns like "foo W,X,Y,Z".
+ where W=MVAX[0:3] and X,Y,Z=MVFX[0:15]. */
- else if (rdlo == REG_PC || rdhi == REG_PC)
- inst.error = BAD_PC; /* Undefined result if rdlo or rdhi is R15. */
- else
- end_of_line (str);
+static void
+do_mav_quad (void)
+{
+ inst.instruction |= inst.operands[0].reg << 5;
+ inst.instruction |= inst.operands[1].reg << 12;
+ inst.instruction |= inst.operands[2].reg << 16;
+ inst.instruction |= inst.operands[3].reg;
}
-static int
-ldst_extend (char ** str)
+/* cfmvsc32<cond> DSPSC,MVDX[15:0]. */
+static void
+do_mav_dspsc (void)
{
- int add = INDEX_UP;
+ inst.instruction |= inst.operands[1].reg << 12;
+}
- switch (**str)
- {
- case '#':
- case '$':
- (*str)++;
- if (my_get_expression (& inst.reloc.exp, str))
- return FAIL;
+/* Maverick shift immediate instructions.
+ cfsh32<cond> MVFX[15:0],MVFX[15:0],Shift[6:0].
+ cfsh64<cond> MVDX[15:0],MVDX[15:0],Shift[6:0]. */
- if (inst.reloc.exp.X_op == O_constant)
- {
- int value = inst.reloc.exp.X_add_number;
+static void
+do_mav_shift (void)
+{
+ int imm = inst.operands[2].imm;
- if (value < -4095 || value > 4095)
- {
- inst.error = _("address offset too large");
- return FAIL;
- }
+ inst.instruction |= inst.operands[0].reg << 12;
+ inst.instruction |= inst.operands[1].reg << 16;
- if (value < 0)
- {
- value = -value;
- add = 0;
- }
+ /* Bits 0-3 of the insn should have bits 0-3 of the immediate.
+ Bits 5-7 of the insn should have bits 4-6 of the immediate.
+ Bit 4 should be 0. */
+ imm = (imm & 0xf) | ((imm & 0x70) << 1);
- inst.instruction |= add | value;
- }
- else
- {
- inst.reloc.type = BFD_RELOC_ARM_OFFSET_IMM;
- inst.reloc.pc_rel = 0;
- }
- return SUCCESS;
+ inst.instruction |= imm;
+}
+\f
+/* XScale instructions. Also sorted arithmetic before move. */
- case '-':
- add = 0;
- /* Fall through. */
+/* Xscale multiply-accumulate (argument parse)
+ MIAcc acc0,Rm,Rs
+ MIAPHcc acc0,Rm,Rs
+ MIAxycc acc0,Rm,Rs. */
- case '+':
- (*str)++;
- /* Fall through. */
+static void
+do_xsc_mia (void)
+{
+ inst.instruction |= inst.operands[1].reg;
+ inst.instruction |= inst.operands[2].reg << 12;
+}
- default:
- if (reg_required_here (str, 0) == FAIL)
- return FAIL;
+/* Xscale move-accumulator-register (argument parse)
- inst.instruction |= add | OFFSET_REG;
- if (skip_past_comma (str) == SUCCESS)
- return decode_shift (str, SHIFT_IMMEDIATE);
+ MARcc acc0,RdLo,RdHi. */
- return SUCCESS;
- }
+static void
+do_xsc_mar (void)
+{
+ inst.instruction |= inst.operands[1].reg << 12;
+ inst.instruction |= inst.operands[2].reg << 16;
}
-/* ARMv5TE: Preload-Cache
-
- PLD <addr_mode>
+/* Xscale move-register-accumulator (argument parse)
- Syntactically, like LDR with B=1, W=0, L=1. */
+ MRAcc RdLo,RdHi,acc0. */
static void
-do_pld (char * str)
+do_xsc_mra (void)
{
- int rd;
+ constraint (inst.operands[0].reg == inst.operands[1].reg, BAD_OVERLAP);
+ inst.instruction |= inst.operands[0].reg << 12;
+ inst.instruction |= inst.operands[1].reg << 16;
+}
+\f
+/* Encoding functions relevant only to Thumb. */
- skip_whitespace (str);
+/* inst.operands[i] is a shifted-register operand; encode
+ it into inst.instruction in the format used by Thumb32. */
+
+static void
+encode_thumb32_shifted_operand (int i)
+{
+ unsigned int value = inst.reloc.exp.X_add_number;
+ unsigned int shift = inst.operands[i].shift_kind;
- if (* str != '[')
+ inst.instruction |= inst.operands[i].reg;
+ if (shift == SHIFT_RRX)
+ inst.instruction |= SHIFT_ROR << 4;
+ else
{
- inst.error = _("'[' expected after PLD mnemonic");
- return;
+ constraint (inst.reloc.exp.X_op != O_constant,
+ _("expression too complex"));
+
+ constraint (value > 32
+ || (value == 32 && (shift == SHIFT_LSL
+ || shift == SHIFT_ROR)),
+ _("shift expression is too large"));
+
+ if (value == 0)
+ shift = SHIFT_LSL;
+ else if (value == 32)
+ value = 0;
+
+ inst.instruction |= shift << 4;
+ inst.instruction |= (value & 0x1c) << 10;
+ inst.instruction |= (value & 0x03) << 6;
}
+}
- ++str;
- skip_whitespace (str);
- if ((rd = reg_required_here (& str, 16)) == FAIL)
- return;
+/* inst.operands[i] was set up by parse_address. Encode it into a
+ Thumb32 format load or store instruction. Reject forms that cannot
+ be used with such instructions. If is_t is true, reject forms that
+ cannot be used with a T instruction; if is_d is true, reject forms
+ that cannot be used with a D instruction. */
- skip_whitespace (str);
+static void
+encode_thumb32_addr_mode (int i, bfd_boolean is_t, bfd_boolean is_d)
+{
+ bfd_boolean is_pc = (inst.operands[i].reg == REG_PC);
+
+ constraint (!inst.operands[i].isreg,
+ _("Thumb does not support the ldr =N pseudo-operation"));
- if (*str == ']')
+ inst.instruction |= inst.operands[i].reg << 16;
+ if (inst.operands[i].immisreg)
{
- /* [Rn], ... ? */
- ++str;
- skip_whitespace (str);
+ constraint (is_pc, _("cannot use register index with PC-relative addressing"));
+ constraint (is_t || is_d, _("cannot use register index with this instruction"));
+ constraint (inst.operands[i].negative,
+ _("Thumb does not support negative register indexing"));
+ constraint (inst.operands[i].postind,
+ _("Thumb does not support register post-indexing"));
+ constraint (inst.operands[i].writeback,
+ _("Thumb does not support register indexing with writeback"));
+ constraint (inst.operands[i].shifted && inst.operands[i].shift_kind != SHIFT_LSL,
+ _("Thumb supports only LSL in shifted register indexing"));
- /* Post-indexed addressing is not allowed with PLD. */
- if (skip_past_comma (&str) == SUCCESS)
+ inst.instruction |= inst.operands[1].imm;
+ if (inst.operands[i].shifted)
{
- inst.error
- = _("post-indexed expression used in preload instruction");
- return;
+ constraint (inst.reloc.exp.X_op != O_constant,
+ _("expression too complex"));
+ constraint (inst.reloc.exp.X_add_number < 0 || inst.reloc.exp.X_add_number > 3,
+ _("shift out of range"));
+ inst.instruction |= inst.reloc.exp.X_op << 4;
+ }
+ inst.reloc.type = BFD_RELOC_UNUSED;
+ }
+ else if (inst.operands[i].preind)
+ {
+ constraint (is_pc && inst.operands[i].writeback,
+ _("cannot use writeback with PC-relative addressing"));
+ constraint (is_t && inst.operands[1].writeback,
+ _("cannot use writeback with this instruction"));
+
+ if (is_d)
+ {
+ inst.instruction |= 0x01000000;
+ if (inst.operands[i].writeback)
+ inst.instruction |= 0x00200000;
}
- else if (*str == '!') /* [Rn]! */
+ else
{
- inst.error = _("writeback used in preload instruction");
- ++str;
+ inst.instruction |= 0x00000c00;
+ if (inst.operands[i].writeback)
+ inst.instruction |= 0x00000100;
}
- else /* [Rn] */
- inst.instruction |= INDEX_UP | PRE_INDEX;
+ inst.reloc.type = BFD_RELOC_ARM_T32_OFFSET_IMM;
+ inst.reloc.pc_rel = is_pc;
}
- else /* [Rn, ...] */
+ else if (inst.operands[i].postind)
{
- if (skip_past_comma (& str) == FAIL)
+ assert (inst.operands[i].writeback);
+ constraint (is_pc, _("cannot use post-indexing with PC-relative addressing"));
+ constraint (is_t, _("cannot use post-indexing with this instruction"));
+
+ if (is_d)
+ inst.instruction |= 0x00200000;
+ else
+ inst.instruction |= 0x00000900;
+ inst.reloc.type = BFD_RELOC_ARM_T32_OFFSET_IMM;
+ }
+ else /* unindexed - only for coprocessor */
+ inst.error = _("instruction does not accept unindexed addressing");
+}
+
+/* Table of Thumb instructions which exist in both 16- and 32-bit
+ encodings (the latter only in post-V6T2 cores). The index is the
+ value used in the insns table below. When there is more than one
+ possible 16-bit encoding for the instruction, this table always
+ holds variant (1). */
+#define T16_32_TAB \
+ X(adc, 4140, eb400000), \
+ X(adcs, 4140, eb500000), \
+ X(add, 1c00, eb000000), \
+ X(adds, 1c00, eb100000), \
+ X(and, 4000, ea000000), \
+ X(ands, 4000, ea100000), \
+ X(asr, 1000, fa40f000), \
+ X(asrs, 1000, fa50f000), \
+ X(bic, 4380, ea200000), \
+ X(bics, 4380, ea300000), \
+ X(cmn, 42c0, eb100f00), \
+ X(cmp, 2800, ebb00f00), \
+ X(cpsie, b660, f3af8400), \
+ X(cpsid, b670, f3af8600), \
+ X(cpy, 4600, ea4f0000), \
+ X(eor, 4040, ea800000), \
+ X(eors, 4040, ea900000), \
+ X(ldmia, c800, e8900000), \
+ X(ldr, 6800, f8500000), \
+ X(ldrb, 7800, f8100000), \
+ X(ldrh, 8800, f8300000), \
+ X(ldrsb, 5600, f9100000), \
+ X(ldrsh, 5e00, f9300000), \
+ X(lsl, 0000, fa00f000), \
+ X(lsls, 0000, fa10f000), \
+ X(lsr, 0800, fa20f000), \
+ X(lsrs, 0800, fa30f000), \
+ X(mov, 2000, ea4f0000), \
+ X(movs, 2000, ea5f0000), \
+ X(mul, 4340, fb00f000), \
+ X(muls, 4340, ffffffff), /* no 32b muls */ \
+ X(mvn, 43c0, ea6f0000), \
+ X(mvns, 43c0, ea7f0000), \
+ X(neg, 4240, f1c00000), /* rsb #0 */ \
+ X(negs, 4240, f1d00000), /* rsbs #0 */ \
+ X(orr, 4300, ea400000), \
+ X(orrs, 4300, ea500000), \
+ X(pop, bc00, e8ad0000), /* ldmia sp!,... */ \
+ X(push, b400, e8bd0000), /* stmia sp!,... */ \
+ X(rev, ba00, fa90f080), \
+ X(rev16, ba40, fa90f090), \
+ X(revsh, bac0, fa90f0b0), \
+ X(ror, 41c0, fa60f000), \
+ X(rors, 41c0, fa70f000), \
+ X(sbc, 4180, eb600000), \
+ X(sbcs, 4180, eb700000), \
+ X(stmia, c000, e8800000), \
+ X(str, 6000, f8400000), \
+ X(strb, 7000, f8000000), \
+ X(strh, 8000, f8200000), \
+ X(sub, 1e00, eba00000), \
+ X(subs, 1e00, ebb00000), \
+ X(sxtb, b240, fa4ff080), \
+ X(sxth, b200, fa0ff080), \
+ X(tst, 4200, ea100f00), \
+ X(uxtb, b2c0, fa5ff080), \
+ X(uxth, b280, fa1ff080), \
+ X(nop, bf00, f3af8000), \
+ X(yield, bf10, f3af8001), \
+ X(wfe, bf20, f3af8002), \
+ X(wfi, bf30, f3af8003), \
+ X(sev, bf40, f3af9004), /* typo, 8004? */
+
+/* To catch errors in encoding functions, the codes are all offset by
+ 0xF800, putting them in one of the 32-bit prefix ranges, ergo undefined
+ as 16-bit instructions. */
+#define X(a,b,c) T_MNEM_##a
+enum t16_32_codes { T16_32_OFFSET = 0xF7FF, T16_32_TAB };
+#undef X
+
+#define X(a,b,c) 0x##b
+static const unsigned short thumb_op16[] = { T16_32_TAB };
+#define THUMB_OP16(n) (thumb_op16[(n) - (T16_32_OFFSET + 1)])
+#undef X
+
+#define X(a,b,c) 0x##c
+static const unsigned int thumb_op32[] = { T16_32_TAB };
+#define THUMB_OP32(n) (thumb_op32[(n) - (T16_32_OFFSET + 1)])
+#define THUMB_SETS_FLAGS(n) (THUMB_OP32 (n) & 0x00100000)
+#undef X
+#undef T16_32_TAB
+
+/* Thumb instruction encoders, in alphabetical order. */
+
+/* Parse an add or subtract instruction. We get here with inst.instruction
+ equalling any of THUMB_OPCODE_add, adds, sub, or subs. */
+
+static void
+do_t_add_sub (void)
+{
+ int Rd, Rs, Rn;
+
+ Rd = inst.operands[0].reg;
+ Rs = (inst.operands[1].present
+ ? inst.operands[1].reg /* Rd, Rs, foo */
+ : inst.operands[0].reg); /* Rd, foo -> Rd, Rd, foo */
+
+ if (unified_syntax)
+ {
+ if (!inst.operands[2].isreg)
{
- inst.error = _("pre-indexed expression expected");
- return;
+ /* For an immediate, we always generate a 32-bit opcode;
+ section relaxation will shrink it later if possible. */
+ inst.instruction = THUMB_OP32 (inst.instruction);
+ inst.instruction = (inst.instruction & 0xe1ffffff) | 0x10000000;
+ inst.instruction |= inst.operands[0].reg << 8;
+ inst.instruction |= inst.operands[1].reg << 16;
+ inst.reloc.type = BFD_RELOC_ARM_T32_IMMEDIATE;
}
+ else
+ {
+ Rn = inst.operands[2].reg;
+ /* See if we can do this with a 16-bit instruction. */
+ if (!inst.operands[2].shifted && inst.size_req != 4)
+ {
+ if (Rd <= 7 && Rn <= 7 && Rn <= 7
+ && (inst.instruction == T_MNEM_adds
+ || inst.instruction == T_MNEM_subs))
+ {
+ inst.instruction = (inst.instruction == T_MNEM_adds
+ ? T_OPCODE_ADD_R3
+ : T_OPCODE_SUB_R3);
+ inst.instruction |= Rd | (Rs << 3) | (Rn << 6);
+ return;
+ }
- if (ldst_extend (&str) == FAIL)
- return;
-
- skip_whitespace (str);
+ if (inst.instruction == T_MNEM_add)
+ {
+ if (Rd == Rs)
+ {
+ inst.instruction = T_OPCODE_ADD_HI;
+ inst.instruction |= (Rd & 8) << 4;
+ inst.instruction |= (Rd & 7);
+ inst.instruction |= Rn << 3;
+ return;
+ }
+ /* ... because addition is commutative! */
+ else if (Rd == Rn)
+ {
+ inst.instruction = T_OPCODE_ADD_HI;
+ inst.instruction |= (Rd & 8) << 4;
+ inst.instruction |= (Rd & 7);
+ inst.instruction |= Rs << 3;
+ return;
+ }
+ }
+ }
+ /* If we get here, it can't be done in 16 bits. */
+ constraint (inst.operands[2].shifted && inst.operands[2].immisreg,
+ _("shift must be constant"));
+ inst.instruction = THUMB_OP32 (inst.instruction);
+ inst.instruction |= Rd << 8;
+ inst.instruction |= Rs << 16;
+ encode_thumb32_shifted_operand (2);
+ }
+ }
+ else
+ {
+ constraint (inst.instruction == T_MNEM_adds
+ || inst.instruction == T_MNEM_subs,
+ BAD_THUMB32);
- if (* str != ']')
+ if (!inst.operands[2].isreg) /* Rd, Rs, #imm */
{
- inst.error = _("missing ]");
+ constraint ((Rd > 7 && (Rd != REG_SP || Rs != REG_SP))
+ || (Rs > 7 && Rs != REG_SP && Rs != REG_PC),
+ BAD_HIREG);
+
+ inst.instruction = (inst.instruction == T_MNEM_add
+ ? 0x0000 : 0x8000);
+ inst.instruction |= (Rd << 4) | Rs;
+ inst.reloc.type = BFD_RELOC_ARM_THUMB_ADD;
return;
}
- ++ str;
- skip_whitespace (str);
+ Rn = inst.operands[2].reg;
+ constraint (inst.operands[2].shifted, _("unshifted register required"));
- if (* str == '!') /* [Rn]! */
+ /* We now have Rd, Rs, and Rn set to registers. */
+ if (Rd > 7 || Rs > 7 || Rn > 7)
{
- inst.error = _("writeback used in preload instruction");
- ++ str;
+ /* Can't do this for SUB. */
+ constraint (inst.instruction == T_MNEM_sub, BAD_HIREG);
+ inst.instruction = T_OPCODE_ADD_HI;
+ inst.instruction |= (Rd & 8) << 4;
+ inst.instruction |= (Rd & 7);
+ if (Rs == Rd)
+ inst.instruction |= Rn << 3;
+ else if (Rn == Rd)
+ inst.instruction |= Rs << 3;
+ else
+ constraint (1, _("dest must overlap one source register"));
+ }
+ else
+ {
+ inst.instruction = (inst.instruction == T_MNEM_add
+ ? T_OPCODE_ADD_R3 : T_OPCODE_SUB_R3);
+ inst.instruction |= Rd | (Rs << 3) | (Rn << 6);
}
-
- inst.instruction |= PRE_INDEX;
}
-
- end_of_line (str);
}
-/* ARMv5TE load-consecutive (argument parse)
- Mode is like LDRH.
+static void
+do_t_adr (void)
+{
+ inst.reloc.type = BFD_RELOC_ARM_THUMB_ADD;
+ inst.reloc.exp.X_add_number -= 4; /* PC relative adjust. */
+ inst.reloc.pc_rel = 1;
- LDRccD R, mode
- STRccD R, mode. */
+ inst.instruction |= inst.operands[0].reg << 4;
+}
+/* Arithmetic instructions for which there is just one 16-bit
+ instruction encoding, and it allows only two low registers.
+ For maximal compatibility with ARM syntax, we allow three register
+ operands even when Thumb-32 instructions are not available, as long
+ as the first two are identical. For instance, both "sbc r0,r1" and
+ "sbc r0,r0,r1" are allowed. */
static void
-do_ldrd (char * str)
+do_t_arit3 (void)
{
- int rd;
- int rn;
-
- skip_whitespace (str);
+ int Rd, Rs, Rn;
- if ((rd = reg_required_here (& str, 12)) == FAIL)
- {
- inst.error = BAD_ARGS;
- return;
- }
+ Rd = inst.operands[0].reg;
+ Rs = (inst.operands[1].present
+ ? inst.operands[1].reg /* Rd, Rs, foo */
+ : inst.operands[0].reg); /* Rd, foo -> Rd, Rd, foo */
+ Rn = inst.operands[2].reg;
- if (skip_past_comma (& str) == FAIL
- || (rn = ld_mode_required_here (& str)) == FAIL)
+ if (unified_syntax)
{
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
- }
+ if (!inst.operands[2].isreg)
+ {
+ /* For an immediate, we always generate a 32-bit opcode;
+ section relaxation will shrink it later if possible. */
+ inst.instruction = THUMB_OP32 (inst.instruction);
+ inst.instruction = (inst.instruction & 0xe1ffffff) | 0x10000000;
+ inst.instruction |= Rd << 8;
+ inst.instruction |= Rs << 16;
+ inst.reloc.type = BFD_RELOC_ARM_T32_IMMEDIATE;
+ }
+ else
+ {
+ /* See if we can do this with a 16-bit instruction. */
+ if (THUMB_SETS_FLAGS (inst.instruction)
+ && !inst.operands[2].shifted
+ && inst.size_req != 4
+ && Rd == Rs)
+ {
+ inst.instruction = THUMB_OP16 (inst.instruction);
+ inst.instruction |= Rd;
+ inst.instruction |= Rn << 3;
+ return;
+ }
- /* inst.instruction has now been zapped with Rd and the addressing mode. */
- if (rd & 1) /* Unpredictable result if Rd is odd. */
- {
- inst.error = _("destination register must be even");
- return;
+ /* If we get here, it can't be done in 16 bits. */
+ constraint (inst.operands[2].shifted
+ && inst.operands[2].immisreg,
+ _("shift must be constant"));
+ inst.instruction = THUMB_OP32 (inst.instruction);
+ inst.instruction |= Rd << 8;
+ inst.instruction |= Rs << 16;
+ encode_thumb32_shifted_operand (2);
+ }
}
-
- if (rd == REG_LR)
+ else
{
- inst.error = _("r14 not allowed here");
- return;
- }
+ /* On its face this is a lie - the instruction does set the
+ flags. However, the only supported mnemonic in this mode
+ says it doesn't. */
+ constraint (THUMB_SETS_FLAGS (inst.instruction), BAD_THUMB32);
- if (((rd == rn) || (rd + 1 == rn))
- && ((inst.instruction & WRITE_BACK)
- || (!(inst.instruction & PRE_INDEX))))
- as_warn (_("pre/post-indexing used when modified address register is destination"));
+ constraint (!inst.operands[2].isreg || inst.operands[2].shifted,
+ _("unshifted register required"));
+ constraint (Rd > 7 || Rs > 7 || Rn > 7, BAD_HIREG);
+ constraint (Rd != Rs,
+ _("dest and source1 must be the same register"));
- /* For an index-register load, the index register must not overlap the
- destination (even if not write-back). */
- if ((inst.instruction & V4_STR_BIT) == 0
- && (inst.instruction & HWOFFSET_IMM) == 0)
- {
- int rm = inst.instruction & 0x0000000f;
-
- if (rm == rd || (rm == rd + 1))
- as_warn (_("ldrd destination registers must not overlap index register"));
+ inst.instruction = THUMB_OP16 (inst.instruction);
+ inst.instruction |= Rd;
+ inst.instruction |= Rn << 3;
}
-
- end_of_line (str);
}
-/* Returns the index into fp_values of a floating point number,
- or -1 if not in the table. */
-
-static int
-my_get_float_expression (char ** str)
+/* Similarly, but for instructions where the arithmetic operation is
+ commutative, so we can allow either of them to be different from
+ the destination operand in a 16-bit instruction. For instance, all
+ three of "adc r0,r1", "adc r0,r0,r1", and "adc r0,r1,r0" are
+ accepted. */
+static void
+do_t_arit3c (void)
{
- LITTLENUM_TYPE words[MAX_LITTLENUMS];
- char * save_in;
- expressionS exp;
- int i;
- int j;
+ int Rd, Rs, Rn;
- memset (words, 0, MAX_LITTLENUMS * sizeof (LITTLENUM_TYPE));
+ Rd = inst.operands[0].reg;
+ Rs = (inst.operands[1].present
+ ? inst.operands[1].reg /* Rd, Rs, foo */
+ : inst.operands[0].reg); /* Rd, foo -> Rd, Rd, foo */
+ Rn = inst.operands[2].reg;
- /* Look for a raw floating point number. */
- if ((save_in = atof_ieee (*str, 'x', words)) != NULL
- && is_end_of_line[(unsigned char) *save_in])
+ if (unified_syntax)
{
- for (i = 0; i < NUM_FLOAT_VALS; i++)
+ if (!inst.operands[2].isreg)
{
- for (j = 0; j < MAX_LITTLENUMS; j++)
- {
- if (words[j] != fp_values[i][j])
- break;
- }
-
- if (j == MAX_LITTLENUMS)
- {
- *str = save_in;
- return i;
- }
+ /* For an immediate, we always generate a 32-bit opcode;
+ section relaxation will shrink it later if possible. */
+ inst.instruction = THUMB_OP32 (inst.instruction);
+ inst.instruction = (inst.instruction & 0xe1ffffff) | 0x10000000;
+ inst.instruction |= Rd << 8;
+ inst.instruction |= Rs << 16;
+ inst.reloc.type = BFD_RELOC_ARM_T32_IMMEDIATE;
}
- }
-
- /* Try and parse a more complex expression, this will probably fail
- unless the code uses a floating point prefix (eg "0f"). */
- save_in = input_line_pointer;
- input_line_pointer = *str;
- if (expression (&exp) == absolute_section
- && exp.X_op == O_big
- && exp.X_add_number < 0)
- {
- /* FIXME: 5 = X_PRECISION, should be #define'd where we can use it.
- Ditto for 15. */
- if (gen_to_words (words, 5, (long) 15) == 0)
+ else
{
- for (i = 0; i < NUM_FLOAT_VALS; i++)
+ /* See if we can do this with a 16-bit instruction. */
+ if (THUMB_SETS_FLAGS (inst.instruction)
+ && !inst.operands[2].shifted
+ && inst.size_req != 4)
{
- for (j = 0; j < MAX_LITTLENUMS; j++)
+ if (Rd == Rs)
{
- if (words[j] != fp_values[i][j])
- break;
+ inst.instruction = THUMB_OP16 (inst.instruction);
+ inst.instruction |= Rd;
+ inst.instruction |= Rn << 3;
+ return;
}
-
- if (j == MAX_LITTLENUMS)
+ if (Rd == Rn)
{
- *str = input_line_pointer;
- input_line_pointer = save_in;
- return i;
+ inst.instruction = THUMB_OP16 (inst.instruction);
+ inst.instruction |= Rd;
+ inst.instruction |= Rs << 3;
+ return;
}
}
+
+ /* If we get here, it can't be done in 16 bits. */
+ constraint (inst.operands[2].shifted
+ && inst.operands[2].immisreg,
+ _("shift must be constant"));
+ inst.instruction = THUMB_OP32 (inst.instruction);
+ inst.instruction |= Rd << 8;
+ inst.instruction |= Rs << 16;
+ encode_thumb32_shifted_operand (2);
}
}
+ else
+ {
+ /* On its face this is a lie - the instruction does set the
+ flags. However, the only supported mnemonic in this mode
+ says it doesn't. */
+ constraint (THUMB_SETS_FLAGS (inst.instruction), BAD_THUMB32);
- *str = input_line_pointer;
- input_line_pointer = save_in;
- return -1;
+ constraint (!inst.operands[2].isreg || inst.operands[2].shifted,
+ _("unshifted register required"));
+ constraint (Rd > 7 || Rs > 7 || Rn > 7, BAD_HIREG);
+
+ inst.instruction = THUMB_OP16 (inst.instruction);
+ inst.instruction |= Rd;
+
+ if (Rd == Rs)
+ inst.instruction |= Rn << 3;
+ else if (Rd == Rn)
+ inst.instruction |= Rs << 3;
+ else
+ constraint (1, _("dest must overlap one source register"));
+ }
}
-/* We handle all bad expressions here, so that we can report the faulty
- instruction in the error message. */
-void
-md_operand (expressionS * expr)
+static void
+do_t_bfc (void)
{
- if (in_my_get_expression)
- {
- expr->X_op = O_illegal;
- if (inst.error == NULL)
- inst.error = _("bad expression");
- }
+ unsigned int msb = inst.operands[1].imm + inst.operands[2].imm;
+ constraint (msb > 32, _("bit-field extends past end of register"));
+ /* The instruction encoding stores the LSB and MSB,
+ not the LSB and width. */
+ inst.instruction |= inst.operands[0].reg << 8;
+ inst.instruction |= (inst.operands[1].imm & 0x1c) << 10;
+ inst.instruction |= (inst.operands[1].imm & 0x03) << 6;
+ inst.instruction |= msb - 1;
}
-/* Do those data_ops which can take a negative immediate constant
- by altering the instruction. A bit of a hack really.
- MOV <-> MVN
- AND <-> BIC
- ADC <-> SBC
- by inverting the second operand, and
- ADD <-> SUB
- CMP <-> CMN
- by negating the second operand. */
-
-static int
-negate_data_op (unsigned long * instruction,
- unsigned long value)
+static void
+do_t_bfi (void)
{
- int op, new_inst;
- unsigned long negated, inverted;
-
- negated = validate_immediate (-value);
- inverted = validate_immediate (~value);
-
- op = (*instruction >> DATA_OP_SHIFT) & 0xf;
- switch (op)
- {
- /* First negates. */
- case OPCODE_SUB: /* ADD <-> SUB */
- new_inst = OPCODE_ADD;
- value = negated;
- break;
-
- case OPCODE_ADD:
- new_inst = OPCODE_SUB;
- value = negated;
- break;
-
- case OPCODE_CMP: /* CMP <-> CMN */
- new_inst = OPCODE_CMN;
- value = negated;
- break;
-
- case OPCODE_CMN:
- new_inst = OPCODE_CMP;
- value = negated;
- break;
-
- /* Now Inverted ops. */
- case OPCODE_MOV: /* MOV <-> MVN */
- new_inst = OPCODE_MVN;
- value = inverted;
- break;
-
- case OPCODE_MVN:
- new_inst = OPCODE_MOV;
- value = inverted;
- break;
-
- case OPCODE_AND: /* AND <-> BIC */
- new_inst = OPCODE_BIC;
- value = inverted;
- break;
-
- case OPCODE_BIC:
- new_inst = OPCODE_AND;
- value = inverted;
- break;
-
- case OPCODE_ADC: /* ADC <-> SBC */
- new_inst = OPCODE_SBC;
- value = inverted;
- break;
-
- case OPCODE_SBC:
- new_inst = OPCODE_ADC;
- value = inverted;
- break;
-
- /* We cannot do anything. */
- default:
- return FAIL;
- }
+ unsigned int msb;
- if (value == (unsigned) FAIL)
- return FAIL;
+ /* #0 in second position is alternative syntax for bfc, which is
+ the same instruction but with REG_PC in the Rm field. */
+ if (!inst.operands[1].isreg)
+ inst.operands[1].reg = REG_PC;
- *instruction &= OPCODE_MASK;
- *instruction |= new_inst << DATA_OP_SHIFT;
- return value;
+ msb = inst.operands[2].imm + inst.operands[3].imm;
+ constraint (msb > 32, _("bit-field extends past end of register"));
+ /* The instruction encoding stores the LSB and MSB,
+ not the LSB and width. */
+ inst.instruction |= inst.operands[0].reg << 8;
+ inst.instruction |= inst.operands[1].reg << 16;
+ inst.instruction |= (inst.operands[2].imm & 0x1c) << 10;
+ inst.instruction |= (inst.operands[2].imm & 0x03) << 6;
+ inst.instruction |= msb - 1;
}
-static int
-data_op2 (char ** str)
+static void
+do_t_bfx (void)
{
- int value;
- expressionS expr;
+ constraint (inst.operands[2].imm + inst.operands[3].imm > 32,
+ _("bit-field extends past end of register"));
+ inst.instruction |= inst.operands[0].reg << 8;
+ inst.instruction |= inst.operands[1].reg << 16;
+ inst.instruction |= (inst.operands[2].imm & 0x1c) << 10;
+ inst.instruction |= (inst.operands[2].imm & 0x03) << 6;
+ inst.instruction |= inst.operands[3].imm - 1;
+}
- skip_whitespace (* str);
+/* ARM V5 Thumb BLX (argument parse)
+ BLX <target_addr> which is BLX(1)
+ BLX <Rm> which is BLX(2)
+ Unfortunately, there are two different opcodes for this mnemonic.
+ So, the insns[].value is not used, and the code here zaps values
+ into inst.instruction.
- if (reg_required_here (str, 0) != FAIL)
- {
- if (skip_past_comma (str) == SUCCESS)
- /* Shift operation on register. */
- return decode_shift (str, NO_SHIFT_RESTRICT);
+ ??? How to take advantage of the additional two bits of displacement
+ available in Thumb32 mode? Need new relocation? */
- return SUCCESS;
- }
+static void
+do_t_blx (void)
+{
+ if (inst.operands[0].isreg)
+ /* We have a register, so this is BLX(2). */
+ inst.instruction |= inst.operands[0].reg << 3;
else
{
- /* Immediate expression. */
- if (is_immediate_prefix (**str))
- {
- (*str)++;
- inst.error = NULL;
-
- if (my_get_expression (&inst.reloc.exp, str))
- return FAIL;
-
- if (inst.reloc.exp.X_add_symbol)
- {
- inst.reloc.type = BFD_RELOC_ARM_IMMEDIATE;
- inst.reloc.pc_rel = 0;
- }
- else
- {
- if (skip_past_comma (str) == SUCCESS)
- {
- /* #x, y -- ie explicit rotation by Y. */
- if (my_get_expression (&expr, str))
- return FAIL;
-
- if (expr.X_op != O_constant)
- {
- inst.error = _("constant expression expected");
- return FAIL;
- }
-
- /* Rotate must be a multiple of 2. */
- if (((unsigned) expr.X_add_number) > 30
- || (expr.X_add_number & 1) != 0
- || ((unsigned) inst.reloc.exp.X_add_number) > 255)
- {
- inst.error = _("invalid constant");
- return FAIL;
- }
- inst.instruction |= INST_IMMEDIATE;
- inst.instruction |= inst.reloc.exp.X_add_number;
- inst.instruction |= expr.X_add_number << 7;
- return SUCCESS;
- }
-
- /* Implicit rotation, select a suitable one. */
- value = validate_immediate (inst.reloc.exp.X_add_number);
-
- if (value == FAIL)
- {
- /* Can't be done. Perhaps the code reads something like
- "add Rd, Rn, #-n", where "sub Rd, Rn, #n" would be OK. */
- if ((value = negate_data_op (&inst.instruction,
- inst.reloc.exp.X_add_number))
- == FAIL)
- {
- inst.error = _("invalid constant");
- return FAIL;
- }
- }
-
- inst.instruction |= value;
- }
-
- inst.instruction |= INST_IMMEDIATE;
- return SUCCESS;
- }
-
- (*str)++;
- inst.error = _("register or shift expression expected");
- return FAIL;
+ /* No register. This must be BLX(1). */
+ inst.instruction = 0xf7ffeffe;
+ inst.reloc.type = BFD_RELOC_THUMB_PCREL_BLX;
+ inst.reloc.pc_rel = 1;
}
}
-static int
-fp_op2 (char ** str)
+static void
+do_t_branch (void)
{
- skip_whitespace (* str);
-
- if (fp_reg_required_here (str, 0) != FAIL)
- return SUCCESS;
+ if (unified_syntax && inst.size_req != 2)
+ {
+ if (inst.cond == COND_ALWAYS)
+ {
+ inst.instruction = 0xf7ffbffe;
+ inst.reloc.type = BFD_RELOC_THUMB_PCREL_BRANCH25;
+ }
+ else
+ {
+ assert (inst.cond != 0xF);
+ inst.instruction = (inst.cond << 22) | 0xf43faffe;
+ inst.reloc.type = BFD_RELOC_THUMB_PCREL_BRANCH20;
+ }
+ }
else
{
- /* Immediate expression. */
- if (*((*str)++) == '#')
+ if (inst.cond == COND_ALWAYS)
+ inst.reloc.type = BFD_RELOC_THUMB_PCREL_BRANCH12;
+ else
{
- int i;
-
- inst.error = NULL;
-
- skip_whitespace (* str);
-
- /* First try and match exact strings, this is to guarantee
- that some formats will work even for cross assembly. */
-
- for (i = 0; fp_const[i]; i++)
- {
- if (strncmp (*str, fp_const[i], strlen (fp_const[i])) == 0)
- {
- char *start = *str;
-
- *str += strlen (fp_const[i]);
- if (is_end_of_line[(unsigned char) **str])
- {
- inst.instruction |= i + 8;
- return SUCCESS;
- }
- *str = start;
- }
- }
-
- /* Just because we didn't get a match doesn't mean that the
- constant isn't valid, just that it is in a format that we
- don't automatically recognize. Try parsing it with
- the standard expression routines. */
- if ((i = my_get_float_expression (str)) >= 0)
- {
- inst.instruction |= i + 8;
- return SUCCESS;
- }
-
- inst.error = _("invalid floating point immediate expression");
- return FAIL;
+ inst.instruction = 0xd0fe | (inst.cond << 8);
+ inst.reloc.type = BFD_RELOC_THUMB_PCREL_BRANCH9;
}
- inst.error =
- _("floating point register or immediate expression expected");
- return FAIL;
}
+
+ inst.reloc.pc_rel = 1;
}
static void
-do_arit (char * str)
+do_t_bkpt (void)
{
- skip_whitespace (str);
-
- if (reg_required_here (&str, 12) == FAIL
- || skip_past_comma (&str) == FAIL
- || reg_required_here (&str, 16) == FAIL
- || skip_past_comma (&str) == FAIL
- || data_op2 (&str) == FAIL)
+ if (inst.operands[0].present)
{
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
+ constraint (inst.operands[0].imm > 255,
+ _("immediate value out of range"));
+ inst.instruction |= inst.operands[0].imm;
}
-
- end_of_line (str);
}
static void
-do_adr (char * str)
+do_t_branch23 (void)
{
- /* This is a pseudo-op of the form "adr rd, label" to be converted
- into a relative address of the form "add rd, pc, #label-.-8". */
- skip_whitespace (str);
-
- if (reg_required_here (&str, 12) == FAIL
- || skip_past_comma (&str) == FAIL
- || my_get_expression (&inst.reloc.exp, &str))
- {
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
- }
-
- /* Frag hacking will turn this into a sub instruction if the offset turns
- out to be negative. */
- inst.reloc.type = BFD_RELOC_ARM_IMMEDIATE;
-#ifndef TE_WINCE
- inst.reloc.exp.X_add_number -= 8; /* PC relative adjust. */
-#endif
+ inst.reloc.type = BFD_RELOC_THUMB_PCREL_BRANCH23;
inst.reloc.pc_rel = 1;
- end_of_line (str);
+ /* If the destination of the branch is a defined symbol which does not have
+ the THUMB_FUNC attribute, then we must be calling a function which has
+ the (interfacearm) attribute. We look for the Thumb entry point to that
+ function and change the branch to refer to that function instead. */
+ if ( inst.reloc.exp.X_op == O_symbol
+ && inst.reloc.exp.X_add_symbol != NULL
+ && S_IS_DEFINED (inst.reloc.exp.X_add_symbol)
+ && ! THUMB_IS_FUNC (inst.reloc.exp.X_add_symbol))
+ inst.reloc.exp.X_add_symbol =
+ find_real_start (inst.reloc.exp.X_add_symbol);
}
static void
-do_adrl (char * str)
+do_t_bx (void)
{
- /* This is a pseudo-op of the form "adrl rd, label" to be converted
- into a relative address of the form:
- add rd, pc, #low(label-.-8)"
- add rd, rd, #high(label-.-8)" */
-
- skip_whitespace (str);
-
- if (reg_required_here (&str, 12) == FAIL
- || skip_past_comma (&str) == FAIL
- || my_get_expression (&inst.reloc.exp, &str))
- {
- if (!inst.error)
- inst.error = BAD_ARGS;
+ inst.instruction |= inst.operands[0].reg << 3;
+ /* ??? FIXME: Should add a hacky reloc here if reg is REG_PC. The reloc
+ should cause the alignment to be checked once it is known. This is
+ because BX PC only works if the instruction is word aligned. */
+}
- return;
- }
+static void
+do_t_bxj (void)
+{
+ if (inst.operands[0].reg == REG_PC)
+ as_tsktsk (_("use of r15 in bxj is not really useful"));
- end_of_line (str);
- /* Frag hacking will turn this into a sub instruction if the offset turns
- out to be negative. */
- inst.reloc.type = BFD_RELOC_ARM_ADRL_IMMEDIATE;
-#ifndef TE_WINCE
- inst.reloc.exp.X_add_number -= 8; /* PC relative adjust */
-#endif
- inst.reloc.pc_rel = 1;
- inst.size = INSN_SIZE * 2;
+ inst.instruction |= inst.operands[0].reg << 16;
}
static void
-do_cmp (char * str)
+do_t_clz (void)
{
- skip_whitespace (str);
+ inst.instruction |= inst.operands[0].reg << 8;
+ inst.instruction |= inst.operands[1].reg << 16;
+ inst.instruction |= inst.operands[1].reg;
+}
- if (reg_required_here (&str, 16) == FAIL)
+static void
+do_t_cpsi (void)
+{
+ if (unified_syntax
+ && (inst.operands[1].present || inst.size_req == 4))
{
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
+ unsigned int imod = (inst.instruction & 0x0030) >> 4;
+ inst.instruction = 0xf3af8000;
+ inst.instruction |= imod << 9;
+ inst.instruction |= inst.operands[0].imm << 5;
+ if (inst.operands[1].present)
+ inst.instruction |= 0x100 | inst.operands[1].imm;
}
-
- if (skip_past_comma (&str) == FAIL
- || data_op2 (&str) == FAIL)
+ else
{
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
+ constraint (inst.operands[1].present,
+ _("Thumb does not support the 2-argument "
+ "form of this instruction"));
+ inst.instruction |= inst.operands[0].imm;
}
-
- end_of_line (str);
}
+/* THUMB CPY instruction (argument parse). */
+
static void
-do_mov (char * str)
+do_t_cpy (void)
{
- skip_whitespace (str);
-
- if (reg_required_here (&str, 12) == FAIL)
+ if (inst.size_req == 4)
{
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
+ inst.instruction = THUMB_OP32 (T_MNEM_mov);
+ inst.instruction |= inst.operands[0].reg << 8;
+ inst.instruction |= inst.operands[1].reg;
}
-
- if (skip_past_comma (&str) == FAIL
- || data_op2 (&str) == FAIL)
+ else
{
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
+ inst.instruction |= (inst.operands[0].reg & 0x8) << 4;
+ inst.instruction |= (inst.operands[0].reg & 0x7);
+ inst.instruction |= inst.operands[1].reg << 3;
}
-
- end_of_line (str);
}
static void
-do_ldst (char * str)
+do_t_czb (void)
{
- int pre_inc = 0;
- int conflict_reg;
- int value;
-
- skip_whitespace (str);
-
- if ((conflict_reg = reg_required_here (&str, 12)) == FAIL)
- {
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
- }
+ constraint (inst.operands[0].reg > 7, BAD_HIREG);
+ inst.instruction |= inst.operands[0].reg;
+ inst.reloc.pc_rel = 1;
+ inst.reloc.type = BFD_RELOC_THUMB_PCREL_BRANCH7;
+}
- if (skip_past_comma (&str) == FAIL)
- {
- inst.error = _("address expected");
- return;
- }
+static void
+do_t_hint (void)
+{
+ if (unified_syntax && inst.size_req == 4)
+ inst.instruction = THUMB_OP32 (inst.instruction);
+ else
+ inst.instruction = THUMB_OP16 (inst.instruction);
+}
- if (*str == '[')
+static void
+do_t_it (void)
+{
+ unsigned int cond = inst.operands[0].imm;
+ if ((cond & 0x1) == 0x0)
{
- int reg;
+ unsigned int mask = inst.instruction & 0x000f;
+ inst.instruction &= 0xfff0;
- str++;
-
- skip_whitespace (str);
+ if ((mask & 0x7) == 0)
+ /* no conversion needed */;
+ else if ((mask & 0x3) == 0)
+ mask = (~(mask & 0x8) & 0x8) | 0x4;
+ else if ((mask & 1) == 0)
+ mask = (~(mask & 0xC) & 0xC) | 0x2;
+ else
+ mask = (~(mask & 0xE) & 0xE) | 0x1;
- if ((reg = reg_required_here (&str, 16)) == FAIL)
- return;
+ inst.instruction |= (mask & 0xF);
+ }
- /* Conflicts can occur on stores as well as loads. */
- conflict_reg = (conflict_reg == reg);
+ inst.instruction |= cond << 4;
+}
- skip_whitespace (str);
+static void
+do_t_ldmstm (void)
+{
+ /* This really doesn't seem worth it. */
+ constraint (inst.reloc.type != BFD_RELOC_UNUSED,
+ _("expression too complex"));
+ constraint (inst.operands[1].writeback,
+ _("Thumb load/store multiple does not support {reglist}^"));
- if (*str == ']')
+ if (unified_syntax)
+ {
+ /* See if we can use a 16-bit instruction. */
+ if (inst.instruction < 0xffff /* not ldmdb/stmdb */
+ && inst.size_req != 4
+ && inst.operands[0].reg <= 7
+ && !(inst.operands[1].imm & ~0xff)
+ && (inst.instruction == T_MNEM_stmia
+ ? inst.operands[0].writeback
+ : (inst.operands[0].writeback
+ == !(inst.operands[1].imm & (1 << inst.operands[0].reg)))))
{
- str ++;
+ if (inst.instruction == T_MNEM_stmia
+ && (inst.operands[1].imm & (1 << inst.operands[0].reg))
+ && (inst.operands[1].imm & ((1 << inst.operands[0].reg) - 1)))
+ as_warn (_("value stored for r%d is UNPREDICTABLE"),
+ inst.operands[0].reg);
- if (skip_past_comma (&str) == SUCCESS)
+ inst.instruction = THUMB_OP16 (inst.instruction);
+ inst.instruction |= inst.operands[0].reg << 8;
+ inst.instruction |= inst.operands[1].imm;
+ }
+ else
+ {
+ if (inst.operands[1].imm & (1 << 13))
+ as_warn (_("SP should not be in register list"));
+ if (inst.instruction == T_MNEM_stmia)
{
- /* [Rn],... (post inc) */
- if (ldst_extend (&str) == FAIL)
- return;
- if (conflict_reg)
- as_warn (_("%s register same as write-back base"),
- ((inst.instruction & LOAD_BIT)
- ? _("destination") : _("source")));
+ if (inst.operands[1].imm & (1 << 15))
+ as_warn (_("PC should not be in register list"));
+ if (inst.operands[1].imm & (1 << inst.operands[0].reg))
+ as_warn (_("value stored for r%d is UNPREDICTABLE"),
+ inst.operands[0].reg);
}
else
{
- /* [Rn] */
- skip_whitespace (str);
-
- if (*str == '!')
- {
- if (conflict_reg)
- as_warn (_("%s register same as write-back base"),
- ((inst.instruction & LOAD_BIT)
- ? _("destination") : _("source")));
- str++;
- inst.instruction |= WRITE_BACK;
- }
-
- inst.instruction |= INDEX_UP;
- pre_inc = 1;
- }
- }
- else
- {
- /* [Rn,...] */
- if (skip_past_comma (&str) == FAIL)
- {
- inst.error = _("pre-indexed expression expected");
- return;
- }
-
- pre_inc = 1;
- if (ldst_extend (&str) == FAIL)
- return;
-
- skip_whitespace (str);
-
- if (*str++ != ']')
- {
- inst.error = _("missing ]");
- return;
- }
-
- skip_whitespace (str);
-
- if (*str == '!')
- {
- if (conflict_reg)
- as_warn (_("%s register same as write-back base"),
- ((inst.instruction & LOAD_BIT)
- ? _("destination") : _("source")));
- str++;
- inst.instruction |= WRITE_BACK;
+ if (inst.operands[1].imm & (1 << 14)
+ && inst.operands[1].imm & (1 << 15))
+ as_warn (_("LR and PC should not both be in register list"));
+ if ((inst.operands[1].imm & (1 << inst.operands[0].reg))
+ && inst.operands[0].writeback)
+ as_warn (_("base register should not be in register list "
+ "when written back"));
}
+ if (inst.instruction < 0xffff)
+ inst.instruction = THUMB_OP32 (inst.instruction);
+ inst.instruction |= inst.operands[0].reg << 16;
+ inst.instruction |= inst.operands[1].imm;
+ if (inst.operands[0].writeback)
+ inst.instruction |= WRITE_BACK;
}
}
- else if (*str == '=')
+ else
{
- if ((inst.instruction & LOAD_BIT) == 0)
+ constraint (inst.operands[0].reg > 7
+ || (inst.operands[1].imm & ~0xff), BAD_HIREG);
+ if (inst.instruction == T_MNEM_stmia)
{
- inst.error = _("invalid pseudo operation");
- return;
+ if (!inst.operands[0].writeback)
+ as_warn (_("this instruction will write back the base register"));
+ if ((inst.operands[1].imm & (1 << inst.operands[0].reg))
+ && (inst.operands[1].imm & ((1 << inst.operands[0].reg) - 1)))
+ as_warn (_("value stored for r%d is UNPREDICTABLE"),
+ inst.operands[0].reg);
}
-
- /* Parse an "ldr Rd, =expr" instruction; this is another pseudo op. */
- str++;
-
- skip_whitespace (str);
-
- if (my_get_expression (&inst.reloc.exp, &str))
- return;
-
- if (inst.reloc.exp.X_op != O_constant
- && inst.reloc.exp.X_op != O_symbol)
+ else
{
- inst.error = _("constant expression expected");
- return;
+ if (!inst.operands[0].writeback
+ && !(inst.operands[1].imm & (1 << inst.operands[0].reg)))
+ as_warn (_("this instruction will write back the base register"));
+ else if (inst.operands[0].writeback
+ && (inst.operands[1].imm & (1 << inst.operands[0].reg)))
+ as_warn (_("this instruction will not write back the base register"));
}
- if (inst.reloc.exp.X_op == O_constant)
- {
- value = validate_immediate (inst.reloc.exp.X_add_number);
-
- if (value != FAIL)
- {
- /* This can be done with a mov instruction. */
- inst.instruction &= LITERAL_MASK;
- inst.instruction |= (INST_IMMEDIATE
- | (OPCODE_MOV << DATA_OP_SHIFT));
- inst.instruction |= value & 0xfff;
- end_of_line (str);
- return;
- }
-
- value = validate_immediate (~inst.reloc.exp.X_add_number);
+ inst.instruction = THUMB_OP16 (inst.instruction);
+ inst.instruction |= inst.operands[0].reg << 8;
+ inst.instruction |= inst.operands[1].imm;
+ }
+}
- if (value != FAIL)
- {
- /* This can be done with a mvn instruction. */
- inst.instruction &= LITERAL_MASK;
- inst.instruction |= (INST_IMMEDIATE
- | (OPCODE_MVN << DATA_OP_SHIFT));
- inst.instruction |= value & 0xfff;
- end_of_line (str);
- return;
- }
- }
+static void
+do_t_ldrex (void)
+{
+ constraint (!inst.operands[1].isreg || !inst.operands[1].preind
+ || inst.operands[1].postind || inst.operands[1].writeback
+ || inst.operands[1].immisreg || inst.operands[1].shifted
+ || inst.operands[1].negative,
+ _("instruction does not accept this addressing mode"));
- /* Insert into literal pool. */
- if (add_to_lit_pool () == FAIL)
- {
- if (!inst.error)
- inst.error = _("literal pool insertion failed");
- return;
- }
+ inst.instruction |= inst.operands[0].reg << 12;
+ inst.instruction |= inst.operands[1].reg << 16;
+ inst.reloc.type = BFD_RELOC_ARM_T32_OFFSET_U8;
+}
- /* Change the instruction exp to point to the pool. */
- inst.reloc.type = BFD_RELOC_ARM_LITERAL;
- inst.reloc.pc_rel = 1;
- inst.instruction |= (REG_PC << 16);
- pre_inc = 1;
- }
- else
+static void
+do_t_ldrexd (void)
+{
+ if (!inst.operands[1].present)
{
- if (my_get_expression (&inst.reloc.exp, &str))
- return;
-
- inst.reloc.type = BFD_RELOC_ARM_OFFSET_IMM;
-#ifndef TE_WINCE
- /* PC rel adjust. */
- inst.reloc.exp.X_add_number -= 8;
-#endif
- inst.reloc.pc_rel = 1;
- inst.instruction |= (REG_PC << 16);
- pre_inc = 1;
+ constraint (inst.operands[0].reg == REG_LR,
+ _("r14 not allowed as first register "
+ "when second register is omitted"));
+ inst.operands[1].reg = inst.operands[0].reg + 1;
}
+ constraint (inst.operands[0].reg == inst.operands[1].reg,
+ BAD_OVERLAP);
- inst.instruction |= (pre_inc ? PRE_INDEX : 0);
- end_of_line (str);
+ inst.instruction |= inst.operands[0].reg << 12;
+ inst.instruction |= inst.operands[1].reg << 8;
+ inst.instruction |= inst.operands[2].reg << 16;
}
static void
-do_ldstt (char * str)
+do_t_ldst (void)
{
- int conflict_reg;
-
- skip_whitespace (str);
-
- if ((conflict_reg = reg_required_here (& str, 12)) == FAIL)
+ if (unified_syntax)
{
- if (!inst.error)
- inst.error = BAD_ARGS;
+ /* Generation of 16-bit instructions for anything other than
+ Rd, [Rn, Ri] is deferred to section relaxation time. */
+ if (inst.operands[1].isreg && inst.operands[1].immisreg
+ && !inst.operands[1].shifted && !inst.operands[1].postind
+ && !inst.operands[1].negative && inst.operands[0].reg <= 7
+ && inst.operands[1].reg <= 7 && inst.operands[1].imm <= 7
+ && inst.instruction <= 0xffff)
+ {
+ inst.instruction = THUMB_OP16 (inst.instruction);
+ goto op16;
+ }
+
+ inst.instruction = THUMB_OP32 (inst.instruction);
+ inst.instruction |= inst.operands[0].reg << 12;
+ encode_thumb32_addr_mode (1, /*is_t=*/FALSE, /*is_d=*/FALSE);
return;
}
- if (skip_past_comma (& str) == FAIL)
+ constraint (inst.operands[0].reg > 7, BAD_HIREG);
+
+ if (inst.instruction == T_MNEM_ldrsh || inst.instruction == T_MNEM_ldrsb)
{
- inst.error = _("address expected");
- return;
+ /* Only [Rn,Rm] is acceptable. */
+ constraint (inst.operands[1].reg > 7 || inst.operands[1].imm > 7, BAD_HIREG);
+ constraint (!inst.operands[1].isreg || !inst.operands[1].immisreg
+ || inst.operands[1].postind || inst.operands[1].shifted
+ || inst.operands[1].negative,
+ _("Thumb does not support this addressing mode"));
+ inst.instruction = THUMB_OP16 (inst.instruction);
+ goto op16;
}
+
+ inst.instruction = THUMB_OP16 (inst.instruction);
+ if (!inst.operands[1].isreg)
+ if (move_or_literal_pool (0, /*thumb_p=*/TRUE, /*mode_3=*/FALSE))
+ return;
- if (*str == '[')
+ constraint (!inst.operands[1].preind
+ || inst.operands[1].shifted
+ || inst.operands[1].writeback,
+ _("Thumb does not support this addressing mode"));
+ if (inst.operands[1].reg == REG_PC || inst.operands[1].reg == REG_SP)
{
- int reg;
-
- str++;
+ constraint (inst.instruction & 0x0600,
+ _("byte or halfword not valid for base register"));
+ constraint (inst.operands[1].reg == REG_PC
+ && !(inst.instruction & THUMB_LOAD_BIT),
+ _("r15 based store not allowed"));
+ constraint (inst.operands[1].immisreg,
+ _("invalid base register for register offset"));
- skip_whitespace (str);
-
- if ((reg = reg_required_here (&str, 16)) == FAIL)
- return;
+ if (inst.operands[1].reg == REG_PC)
+ inst.instruction = T_OPCODE_LDR_PC;
+ else if (inst.instruction & THUMB_LOAD_BIT)
+ inst.instruction = T_OPCODE_LDR_SP;
+ else
+ inst.instruction = T_OPCODE_STR_SP;
- /* ldrt/strt always use post-indexed addressing, so if the base is
- the same as Rd, we warn. */
- if (conflict_reg == reg)
- as_warn (_("%s register same as write-back base"),
- ((inst.instruction & LOAD_BIT)
- ? _("destination") : _("source")));
+ inst.instruction |= inst.operands[0].reg << 8;
+ inst.reloc.type = BFD_RELOC_ARM_THUMB_OFFSET;
+ return;
+ }
- skip_whitespace (str);
+ constraint (inst.operands[1].reg > 7, BAD_HIREG);
+ if (!inst.operands[1].immisreg)
+ {
+ /* Immediate offset. */
+ inst.instruction |= inst.operands[0].reg;
+ inst.instruction |= inst.operands[1].reg << 3;
+ inst.reloc.type = BFD_RELOC_ARM_THUMB_OFFSET;
+ return;
+ }
- if (*str == ']')
- {
- str ++;
+ /* Register offset. */
+ constraint (inst.operands[1].imm > 7, BAD_HIREG);
+ constraint (inst.operands[1].negative,
+ _("Thumb does not support this addressing mode"));
- if (skip_past_comma (&str) == SUCCESS)
- {
- /* [Rn],... (post inc) */
- if (ldst_extend (&str) == FAIL)
- return;
- }
- else
- {
- /* [Rn] */
- skip_whitespace (str);
+ op16:
+ switch (inst.instruction)
+ {
+ case T_OPCODE_STR_IW: inst.instruction = T_OPCODE_STR_RW; break;
+ case T_OPCODE_STR_IH: inst.instruction = T_OPCODE_STR_RH; break;
+ case T_OPCODE_STR_IB: inst.instruction = T_OPCODE_STR_RB; break;
+ case T_OPCODE_LDR_IW: inst.instruction = T_OPCODE_LDR_RW; break;
+ case T_OPCODE_LDR_IH: inst.instruction = T_OPCODE_LDR_RH; break;
+ case T_OPCODE_LDR_IB: inst.instruction = T_OPCODE_LDR_RB; break;
+ case 0x5600 /* ldrsb */:
+ case 0x5e00 /* ldrsh */: break;
+ default: abort ();
+ }
- /* Skip a write-back '!'. */
- if (*str == '!')
- str++;
+ inst.instruction |= inst.operands[0].reg;
+ inst.instruction |= inst.operands[1].reg << 3;
+ inst.instruction |= inst.operands[1].imm << 6;
+}
- inst.instruction |= INDEX_UP;
- }
- }
- else
- {
- inst.error = _("post-indexed expression expected");
- return;
- }
- }
- else
+static void
+do_t_ldstd (void)
+{
+ if (!inst.operands[1].present)
{
- inst.error = _("post-indexed expression expected");
- return;
+ inst.operands[1].reg = inst.operands[0].reg + 1;
+ constraint (inst.operands[0].reg == REG_LR,
+ _("r14 not allowed here"));
}
-
- end_of_line (str);
+ inst.instruction |= inst.operands[0].reg << 12;
+ inst.instruction |= inst.operands[1].reg << 8;
+ encode_thumb32_addr_mode (2, /*is_t=*/FALSE, /*is_d=*/TRUE);
+
}
-/* Halfword and signed-byte load/store operations. */
+static void
+do_t_ldstt (void)
+{
+ inst.instruction |= inst.operands[0].reg << 12;
+ encode_thumb32_addr_mode (1, /*is_t=*/TRUE, /*is_d=*/FALSE);
+}
static void
-do_ldstv4 (char * str)
+do_t_mla (void)
{
- int pre_inc = 0;
- int conflict_reg;
- int value;
+ inst.instruction |= inst.operands[0].reg << 8;
+ inst.instruction |= inst.operands[1].reg << 16;
+ inst.instruction |= inst.operands[2].reg;
+ inst.instruction |= inst.operands[3].reg << 12;
+}
- skip_whitespace (str);
+static void
+do_t_mlal (void)
+{
+ inst.instruction |= inst.operands[0].reg << 12;
+ inst.instruction |= inst.operands[1].reg << 8;
+ inst.instruction |= inst.operands[2].reg << 16;
+ inst.instruction |= inst.operands[3].reg;
+}
- if ((conflict_reg = reg_required_here (& str, 12)) == FAIL)
+static void
+do_t_mov_cmp (void)
+{
+ if (unified_syntax)
{
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
- }
+ int r0off = (inst.instruction == T_MNEM_mov
+ || inst.instruction == T_MNEM_movs) ? 8 : 16;
+ if (!inst.operands[1].isreg)
+ {
+ /* For an immediate, we always generate a 32-bit opcode;
+ section relaxation will shrink it later if possible. */
+ inst.instruction = THUMB_OP32 (inst.instruction);
+ inst.instruction = (inst.instruction & 0xe1ffffff) | 0x10000000;
+ inst.instruction |= inst.operands[0].reg << r0off;
+ inst.reloc.type = BFD_RELOC_ARM_T32_IMMEDIATE;
+ }
+ else if (inst.size_req == 4
+ || inst.operands[1].shifted
+ || (inst.instruction == T_MNEM_movs
+ && (inst.operands[0].reg > 7 || inst.operands[1].reg > 7)))
+ {
+ inst.instruction = THUMB_OP32 (inst.instruction);
+ inst.instruction |= inst.operands[0].reg << r0off;
+ encode_thumb32_shifted_operand (1);
+ }
+ else
+ switch (inst.instruction)
+ {
+ case T_MNEM_mov:
+ inst.instruction = T_OPCODE_MOV_HR;
+ inst.instruction |= (inst.operands[0].reg & 0x8) << 4;
+ inst.instruction |= (inst.operands[0].reg & 0x7);
+ inst.instruction |= inst.operands[1].reg << 3;
+ break;
- if (skip_past_comma (& str) == FAIL)
- {
- inst.error = _("address expected");
+ case T_MNEM_movs:
+ /* We know we have low registers at this point.
+ Generate ADD Rd, Rs, #0. */
+ inst.instruction = T_OPCODE_ADD_I3;
+ inst.instruction |= inst.operands[0].reg;
+ inst.instruction |= inst.operands[1].reg << 3;
+ break;
+
+ case T_MNEM_cmp:
+ if (inst.operands[0].reg <= 7 && inst.operands[1].reg <= 7)
+ {
+ inst.instruction = T_OPCODE_CMP_LR;
+ inst.instruction |= inst.operands[0].reg;
+ inst.instruction |= inst.operands[1].reg << 3;
+ }
+ else
+ {
+ inst.instruction = T_OPCODE_CMP_HR;
+ inst.instruction |= (inst.operands[0].reg & 0x8) << 4;
+ inst.instruction |= (inst.operands[0].reg & 0x7);
+ inst.instruction |= inst.operands[1].reg << 3;
+ }
+ break;
+ }
return;
}
- if (*str == '[')
+ inst.instruction = THUMB_OP16 (inst.instruction);
+ if (inst.operands[1].isreg)
{
- int reg;
-
- str++;
-
- skip_whitespace (str);
-
- if ((reg = reg_required_here (&str, 16)) == FAIL)
- return;
-
- /* Conflicts can occur on stores as well as loads. */
- conflict_reg = (conflict_reg == reg);
-
- skip_whitespace (str);
-
- if (*str == ']')
+ if (inst.operands[0].reg < 8 && inst.operands[1].reg < 8)
{
- str ++;
-
- if (skip_past_comma (&str) == SUCCESS)
- {
- /* [Rn],... (post inc) */
- if (ldst_extend_v4 (&str) == FAIL)
- return;
- if (conflict_reg)
- as_warn (_("%s register same as write-back base"),
- ((inst.instruction & LOAD_BIT)
- ? _("destination") : _("source")));
- }
+ /* A move of two lowregs is encoded as ADD Rd, Rs, #0
+ since a MOV instruction produces unpredictable results. */
+ if (inst.instruction == T_OPCODE_MOV_I8)
+ inst.instruction = T_OPCODE_ADD_I3;
else
- {
- /* [Rn] */
- inst.instruction |= HWOFFSET_IMM;
-
- skip_whitespace (str);
-
- if (*str == '!')
- {
- if (conflict_reg)
- as_warn (_("%s register same as write-back base"),
- ((inst.instruction & LOAD_BIT)
- ? _("destination") : _("source")));
- str++;
- inst.instruction |= WRITE_BACK;
- }
+ inst.instruction = T_OPCODE_CMP_LR;
- inst.instruction |= INDEX_UP;
- pre_inc = 1;
- }
+ inst.instruction |= inst.operands[0].reg;
+ inst.instruction |= inst.operands[1].reg << 3;
}
else
{
- /* [Rn,...] */
- if (skip_past_comma (&str) == FAIL)
- {
- inst.error = _("pre-indexed expression expected");
- return;
- }
-
- pre_inc = 1;
- if (ldst_extend_v4 (&str) == FAIL)
- return;
-
- skip_whitespace (str);
-
- if (*str++ != ']')
- {
- inst.error = _("missing ]");
- return;
- }
-
- skip_whitespace (str);
-
- if (*str == '!')
- {
- if (conflict_reg)
- as_warn (_("%s register same as write-back base"),
- ((inst.instruction & LOAD_BIT)
- ? _("destination") : _("source")));
- str++;
- inst.instruction |= WRITE_BACK;
- }
+ if (inst.instruction == T_OPCODE_MOV_I8)
+ inst.instruction = T_OPCODE_MOV_HR;
+ else
+ inst.instruction = T_OPCODE_CMP_HR;
+ do_t_cpy ();
}
}
- else if (*str == '=')
+ else
{
- if ((inst.instruction & LOAD_BIT) == 0)
- {
- inst.error = _("invalid pseudo operation");
- return;
- }
-
- /* XXX Does this work correctly for half-word/byte ops? */
- /* Parse an "ldr Rd, =expr" instruction; this is another pseudo op. */
- str++;
-
- skip_whitespace (str);
+ constraint (inst.operands[0].reg > 7,
+ _("only lo regs allowed with immediate"));
+ inst.instruction |= inst.operands[0].reg << 8;
+ inst.reloc.type = BFD_RELOC_ARM_THUMB_IMM;
+ }
+}
- if (my_get_expression (&inst.reloc.exp, &str))
- return;
+static void
+do_t_mov16 (void)
+{
+ inst.instruction |= inst.operands[0].reg << 8;
+ inst.instruction |= (inst.operands[1].imm & 0xf000) << 4;
+ inst.instruction |= (inst.operands[1].imm & 0x0800) << 15;
+ inst.instruction |= (inst.operands[1].imm & 0x0700) << 4;
+ inst.instruction |= (inst.operands[1].imm & 0x00ff);
+}
- if (inst.reloc.exp.X_op != O_constant
- && inst.reloc.exp.X_op != O_symbol)
+static void
+do_t_mvn_tst (void)
+{
+ if (unified_syntax)
+ {
+ int r0off = (inst.instruction == T_MNEM_mvn
+ || inst.instruction == T_MNEM_mvns) ? 8 : 16;
+ if (!inst.operands[1].isreg)
{
- inst.error = _("constant expression expected");
- return;
+ /* For an immediate, we always generate a 32-bit opcode;
+ section relaxation will shrink it later if possible. */
+ if (inst.instruction < 0xffff)
+ inst.instruction = THUMB_OP32 (inst.instruction);
+ inst.instruction = (inst.instruction & 0xe1ffffff) | 0x10000000;
+ inst.instruction |= inst.operands[0].reg << r0off;
+ inst.reloc.type = BFD_RELOC_ARM_T32_IMMEDIATE;
}
-
- if (inst.reloc.exp.X_op == O_constant)
+ else
{
- value = validate_immediate (inst.reloc.exp.X_add_number);
-
- if (value != FAIL)
+ /* See if we can do this with a 16-bit instruction. */
+ if (inst.instruction < 0xffff
+ && THUMB_SETS_FLAGS (inst.instruction)
+ && !inst.operands[1].shifted
+ && inst.operands[0].reg <= 7
+ && inst.operands[1].reg <= 7
+ && inst.size_req != 4)
{
- /* This can be done with a mov instruction. */
- inst.instruction &= LITERAL_MASK;
- inst.instruction |= INST_IMMEDIATE | (OPCODE_MOV << DATA_OP_SHIFT);
- inst.instruction |= value & 0xfff;
- end_of_line (str);
- return;
+ inst.instruction = THUMB_OP16 (inst.instruction);
+ inst.instruction |= inst.operands[0].reg;
+ inst.instruction |= inst.operands[1].reg << 3;
}
-
- value = validate_immediate (~ inst.reloc.exp.X_add_number);
-
- if (value != FAIL)
+ else
{
- /* This can be done with a mvn instruction. */
- inst.instruction &= LITERAL_MASK;
- inst.instruction |= INST_IMMEDIATE | (OPCODE_MVN << DATA_OP_SHIFT);
- inst.instruction |= value & 0xfff;
- end_of_line (str);
- return;
+ constraint (inst.operands[1].shifted
+ && inst.operands[1].immisreg,
+ _("shift must be constant"));
+ if (inst.instruction < 0xffff)
+ inst.instruction = THUMB_OP32 (inst.instruction);
+ inst.instruction |= inst.operands[0].reg << r0off;
+ encode_thumb32_shifted_operand (1);
}
}
-
- /* Insert into literal pool. */
- if (add_to_lit_pool () == FAIL)
- {
- if (!inst.error)
- inst.error = _("literal pool insertion failed");
- return;
- }
-
- /* Change the instruction exp to point to the pool. */
- inst.instruction |= HWOFFSET_IMM;
- inst.reloc.type = BFD_RELOC_ARM_HWLITERAL;
- inst.reloc.pc_rel = 1;
- inst.instruction |= (REG_PC << 16);
- pre_inc = 1;
}
else
{
- if (my_get_expression (&inst.reloc.exp, &str))
- return;
+ constraint (inst.instruction > 0xffff
+ || inst.instruction == T_MNEM_mvns, BAD_THUMB32);
+ constraint (!inst.operands[1].isreg || inst.operands[1].shifted,
+ _("unshifted register required"));
+ constraint (inst.operands[0].reg > 7 || inst.operands[1].reg > 7,
+ BAD_HIREG);
- inst.instruction |= HWOFFSET_IMM;
- inst.reloc.type = BFD_RELOC_ARM_OFFSET_IMM8;
-#ifndef TE_WINCE
- /* PC rel adjust. */
- inst.reloc.exp.X_add_number -= 8;
-#endif
- inst.reloc.pc_rel = 1;
- inst.instruction |= (REG_PC << 16);
- pre_inc = 1;
+ inst.instruction = THUMB_OP16 (inst.instruction);
+ inst.instruction |= inst.operands[0].reg;
+ inst.instruction |= inst.operands[1].reg << 3;
}
-
- inst.instruction |= (pre_inc ? PRE_INDEX : 0);
- end_of_line (str);
}
static void
-do_ldsttv4 (char * str)
+do_t_mrs (void)
{
- int conflict_reg;
+ /* mrs only accepts CPSR/SPSR/CPSR_all/SPSR_all. */
+ constraint ((inst.operands[1].imm & (PSR_c|PSR_x|PSR_s|PSR_f))
+ != (PSR_c|PSR_f),
+ _("'CPSR' or 'SPSR' expected"));
+ inst.instruction |= inst.operands[0].reg << 8;
+ inst.instruction |= (inst.operands[1].imm & SPSR_BIT) >> 2;
+}
- skip_whitespace (str);
+static void
+do_t_msr (void)
+{
+ constraint (!inst.operands[1].isreg,
+ _("Thumb encoding does not support an immediate here"));
+ inst.instruction |= (inst.operands[0].imm & SPSR_BIT) >> 2;
+ inst.instruction |= (inst.operands[0].imm & ~SPSR_BIT) >> 8;
+ inst.instruction |= inst.operands[1].reg << 16;
+}
- if ((conflict_reg = reg_required_here (& str, 12)) == FAIL)
- {
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
- }
+static void
+do_t_mul (void)
+{
+ if (!inst.operands[2].present)
+ inst.operands[2].reg = inst.operands[0].reg;
- if (skip_past_comma (& str) == FAIL)
+ /* There is no 32-bit MULS and no 16-bit MUL. */
+ if (unified_syntax && inst.instruction == T_MNEM_mul)
{
- inst.error = _("address expected");
- return;
+ inst.instruction = THUMB_OP32 (inst.instruction);
+ inst.instruction |= inst.operands[0].reg << 8;
+ inst.instruction |= inst.operands[1].reg << 16;
+ inst.instruction |= inst.operands[2].reg << 0;
}
-
- if (*str == '[')
+ else
{
- int reg;
+ constraint (!unified_syntax
+ && inst.instruction == T_MNEM_muls, BAD_THUMB32);
+ constraint (inst.operands[0].reg > 7 || inst.operands[1].reg > 7,
+ BAD_HIREG);
- str++;
+ inst.instruction = THUMB_OP16 (inst.instruction);
+ inst.instruction |= inst.operands[0].reg;
- skip_whitespace (str);
+ if (inst.operands[0].reg == inst.operands[1].reg)
+ inst.instruction |= inst.operands[2].reg << 3;
+ else if (inst.operands[0].reg == inst.operands[2].reg)
+ inst.instruction |= inst.operands[1].reg << 3;
+ else
+ constraint (1, _("dest must overlap one source register"));
+ }
+}
- if ((reg = reg_required_here (&str, 16)) == FAIL)
- return;
+static void
+do_t_mull (void)
+{
+ inst.instruction |= inst.operands[0].reg << 12;
+ inst.instruction |= inst.operands[1].reg << 8;
+ inst.instruction |= inst.operands[2].reg << 16;
+ inst.instruction |= inst.operands[3].reg;
- /* ldrt/strt always use post-indexed addressing, so if the base is
- the same as Rd, we warn. */
- if (conflict_reg == reg)
- as_warn (_("%s register same as write-back base"),
- ((inst.instruction & LOAD_BIT)
- ? _("destination") : _("source")));
+ if (inst.operands[0].reg == inst.operands[1].reg)
+ as_tsktsk (_("rdhi and rdlo must be different"));
+}
- skip_whitespace (str);
-
- if (*str == ']')
+static void
+do_t_nop (void)
+{
+ if (unified_syntax)
+ {
+ if (inst.size_req == 4 || inst.operands[0].imm > 15)
{
- str ++;
-
- if (skip_past_comma (&str) == SUCCESS)
- {
- /* [Rn],... (post inc) */
- if (ldst_extend_v4 (&str) == FAIL)
- return;
- }
- else
- {
- /* [Rn] */
- skip_whitespace (str);
-
- /* Skip a write-back '!'. */
- if (*str == '!')
- str++;
+ inst.instruction = THUMB_OP32 (inst.instruction);
+ inst.instruction |= inst.operands[0].imm;
+ }
+ else
+ {
+ inst.instruction = THUMB_OP16 (inst.instruction);
+ inst.instruction |= inst.operands[0].imm << 4;
+ }
+ }
+ else
+ {
+ constraint (inst.operands[0].present,
+ _("Thumb does not support NOP with hints"));
+ inst.instruction = 0x46c0;
+ }
+}
- inst.instruction |= (INDEX_UP|HWOFFSET_IMM);
- }
+static void
+do_t_neg (void)
+{
+ if (unified_syntax)
+ {
+ if (inst.operands[0].reg > 7 || inst.operands[1].reg > 7
+ || !THUMB_SETS_FLAGS (inst.instruction)
+ || inst.size_req == 4)
+ {
+ inst.instruction = THUMB_OP32 (inst.instruction);
+ inst.instruction |= inst.operands[0].reg << 8;
+ inst.instruction |= inst.operands[1].reg << 16;
}
else
{
- inst.error = _("post-indexed expression expected");
- return;
+ inst.instruction = THUMB_OP16 (inst.instruction);
+ inst.instruction |= inst.operands[0].reg;
+ inst.instruction |= inst.operands[1].reg << 3;
}
}
else
{
- inst.error = _("post-indexed expression expected");
- return;
+ constraint (inst.operands[0].reg > 7 || inst.operands[1].reg > 7,
+ BAD_HIREG);
+ constraint (THUMB_SETS_FLAGS (inst.instruction), BAD_THUMB32);
+
+ inst.instruction = THUMB_OP16 (inst.instruction);
+ inst.instruction |= inst.operands[0].reg;
+ inst.instruction |= inst.operands[1].reg << 3;
+ }
+}
+
+static void
+do_t_pkhbt (void)
+{
+ inst.instruction |= inst.operands[0].reg << 8;
+ inst.instruction |= inst.operands[1].reg << 16;
+ inst.instruction |= inst.operands[2].reg;
+ if (inst.operands[3].present)
+ {
+ unsigned int val = inst.reloc.exp.X_add_number;
+ constraint (inst.reloc.exp.X_op != O_constant,
+ _("expression too complex"));
+ inst.instruction |= (val & 0x1c) << 10;
+ inst.instruction |= (val & 0x03) << 6;
}
+}
- end_of_line (str);
+static void
+do_t_pkhtb (void)
+{
+ if (!inst.operands[3].present)
+ inst.instruction &= ~0x00000020;
+ do_t_pkhbt ();
}
+static void
+do_t_pld (void)
+{
+ encode_thumb32_addr_mode (0, /*is_t=*/FALSE, /*is_d=*/FALSE);
+}
-static long
-reg_list (char ** strp)
+static void
+do_t_push_pop (void)
{
- char * str = * strp;
- long range = 0;
- int another_range;
+ constraint (inst.operands[0].writeback,
+ _("push/pop do not support {reglist}^"));
+ constraint (inst.reloc.type != BFD_RELOC_UNUSED,
+ _("expression too complex"));
- /* We come back here if we get ranges concatenated by '+' or '|'. */
- do
+ if ((inst.operands[0].imm & ~0xff) == 0)
+ inst.instruction = THUMB_OP16 (inst.instruction);
+ else if ((inst.instruction == T_MNEM_push
+ && (inst.operands[0].imm & ~0xff) == 1 << REG_LR)
+ || (inst.instruction == T_MNEM_pop
+ && (inst.operands[0].imm & ~0xff) == 1 << REG_PC))
{
- another_range = 0;
-
- if (*str == '{')
+ inst.instruction = THUMB_OP16 (inst.instruction);
+ inst.instruction |= THUMB_PP_PC_LR;
+ inst.operands[0].imm &= 0xff;
+ }
+ else if (unified_syntax)
+ {
+ if (inst.operands[1].imm & (1 << 13))
+ as_warn (_("SP should not be in register list"));
+ if (inst.instruction == T_MNEM_push)
{
- int in_range = 0;
- int cur_reg = -1;
+ if (inst.operands[1].imm & (1 << 15))
+ as_warn (_("PC should not be in register list"));
+ }
+ else
+ {
+ if (inst.operands[1].imm & (1 << 14)
+ && inst.operands[1].imm & (1 << 15))
+ as_warn (_("LR and PC should not both be in register list"));
+ }
- str++;
- do
- {
- int reg;
+ inst.instruction = THUMB_OP32 (inst.instruction);
+ }
+ else
+ {
+ inst.error = _("invalid register list to push/pop instruction");
+ return;
+ }
- skip_whitespace (str);
+ inst.instruction |= inst.operands[0].imm;
+}
- if ((reg = reg_required_here (& str, -1)) == FAIL)
- return FAIL;
+static void
+do_t_rbit (void)
+{
+ inst.instruction |= inst.operands[0].reg << 8;
+ inst.instruction |= inst.operands[1].reg << 16;
+}
- if (in_range)
- {
- int i;
+static void
+do_t_rev (void)
+{
+ if (inst.operands[0].reg <= 7 && inst.operands[1].reg <= 7
+ && inst.size_req != 4)
+ {
+ inst.instruction = THUMB_OP16 (inst.instruction);
+ inst.instruction |= inst.operands[0].reg;
+ inst.instruction |= inst.operands[1].reg << 3;
+ }
+ else if (unified_syntax)
+ {
+ inst.instruction = THUMB_OP32 (inst.instruction);
+ inst.instruction |= inst.operands[0].reg << 8;
+ inst.instruction |= inst.operands[1].reg << 16;
+ inst.instruction |= inst.operands[1].reg;
+ }
+ else
+ inst.error = BAD_HIREG;
+}
- if (reg <= cur_reg)
- {
- inst.error = _("bad range in register list");
- return FAIL;
- }
+static void
+do_t_rsb (void)
+{
+ int Rd, Rs;
- for (i = cur_reg + 1; i < reg; i++)
- {
- if (range & (1 << i))
- as_tsktsk
- (_("Warning: duplicated register (r%d) in register list"),
- i);
- else
- range |= 1 << i;
- }
- in_range = 0;
- }
+ Rd = inst.operands[0].reg;
+ Rs = (inst.operands[1].present
+ ? inst.operands[1].reg /* Rd, Rs, foo */
+ : inst.operands[0].reg); /* Rd, foo -> Rd, Rd, foo */
- if (range & (1 << reg))
- as_tsktsk (_("Warning: duplicated register (r%d) in register list"),
- reg);
- else if (reg <= cur_reg)
- as_tsktsk (_("Warning: register range not in ascending order"));
+ inst.instruction |= Rd << 8;
+ inst.instruction |= Rs << 16;
+ if (!inst.operands[2].isreg)
+ {
+ inst.instruction = (inst.instruction & 0xe1ffffff) | 0x10000000;
+ inst.reloc.type = BFD_RELOC_ARM_T32_IMMEDIATE;
+ }
+ else
+ encode_thumb32_shifted_operand (2);
+}
- range |= 1 << reg;
- cur_reg = reg;
- }
- while (skip_past_comma (&str) != FAIL
- || (in_range = 1, *str++ == '-'));
- str--;
- skip_whitespace (str);
+static void
+do_t_setend (void)
+{
+ if (inst.operands[0].imm)
+ inst.instruction |= 0x8;
+}
- if (*str++ != '}')
+static void
+do_t_shift (void)
+{
+ if (!inst.operands[1].present)
+ inst.operands[1].reg = inst.operands[0].reg;
+
+ if (unified_syntax)
+ {
+ if (inst.operands[0].reg > 7
+ || inst.operands[1].reg > 7
+ || !THUMB_SETS_FLAGS (inst.instruction)
+ || (!inst.operands[2].isreg && inst.instruction == T_MNEM_rors)
+ || (inst.operands[2].isreg && inst.operands[1].reg != inst.operands[0].reg)
+ || inst.size_req == 4)
+ {
+ if (inst.operands[2].isreg)
{
- inst.error = _("missing `}'");
- return FAIL;
+ inst.instruction = THUMB_OP32 (inst.instruction);
+ inst.instruction |= inst.operands[0].reg << 8;
+ inst.instruction |= inst.operands[1].reg << 16;
+ inst.instruction |= inst.operands[2].reg;
+ }
+ else
+ {
+ inst.operands[1].shifted = 1;
+ switch (inst.instruction)
+ {
+ case T_MNEM_asr:
+ case T_MNEM_asrs: inst.operands[1].shift_kind = SHIFT_ASR; break;
+ case T_MNEM_lsl:
+ case T_MNEM_lsls: inst.operands[1].shift_kind = SHIFT_LSL; break;
+ case T_MNEM_lsr:
+ case T_MNEM_lsrs: inst.operands[1].shift_kind = SHIFT_LSR; break;
+ case T_MNEM_ror:
+ case T_MNEM_rors: inst.operands[1].shift_kind = SHIFT_ROR; break;
+ default: abort ();
+ }
+
+ inst.instruction = THUMB_OP32 (THUMB_SETS_FLAGS (inst.instruction)
+ ? T_MNEM_movs : T_MNEM_mov);
+ inst.instruction |= inst.operands[0].reg << 8;
+ encode_thumb32_shifted_operand (1);
+ /* Prevent the incorrect generation of an ARM_IMMEDIATE fixup. */
+ inst.reloc.type = BFD_RELOC_UNUSED;
}
}
else
{
- expressionS expr;
-
- if (my_get_expression (&expr, &str))
- return FAIL;
-
- if (expr.X_op == O_constant)
+ if (inst.operands[2].isreg)
{
- if (expr.X_add_number
- != (expr.X_add_number & 0x0000ffff))
- {
- inst.error = _("invalid register mask");
- return FAIL;
- }
-
- if ((range & expr.X_add_number) != 0)
+ switch (inst.instruction)
{
- int regno = range & expr.X_add_number;
-
- regno &= -regno;
- regno = (1 << regno) - 1;
- as_tsktsk
- (_("Warning: duplicated register (r%d) in register list"),
- regno);
+ case T_MNEM_asrs: inst.instruction = T_OPCODE_ASR_R; break;
+ case T_MNEM_lsls: inst.instruction = T_OPCODE_LSL_R; break;
+ case T_MNEM_lsrs: inst.instruction = T_OPCODE_LSR_R; break;
+ case T_MNEM_rors: inst.instruction = T_OPCODE_ROR_R; break;
+ default: abort ();
}
-
- range |= expr.X_add_number;
+
+ inst.instruction |= inst.operands[0].reg;
+ inst.instruction |= inst.operands[2].reg << 3;
}
else
{
- if (inst.reloc.type != 0)
+ switch (inst.instruction)
{
- inst.error = _("expression too complex");
- return FAIL;
+ case T_MNEM_asrs: inst.instruction = T_OPCODE_ASR_I; break;
+ case T_MNEM_lsls: inst.instruction = T_OPCODE_LSL_I; break;
+ case T_MNEM_lsrs: inst.instruction = T_OPCODE_LSR_I; break;
+ default: abort ();
}
-
- memcpy (&inst.reloc.exp, &expr, sizeof (expressionS));
- inst.reloc.type = BFD_RELOC_ARM_MULTI;
- inst.reloc.pc_rel = 0;
+ inst.reloc.type = BFD_RELOC_ARM_THUMB_SHIFT;
+ inst.instruction |= inst.operands[0].reg;
+ inst.instruction |= inst.operands[1].reg << 3;
}
}
+ }
+ else
+ {
+ constraint (inst.operands[0].reg > 7
+ || inst.operands[1].reg > 7, BAD_HIREG);
+ constraint (THUMB_SETS_FLAGS (inst.instruction), BAD_THUMB32);
- skip_whitespace (str);
+ if (inst.operands[2].isreg) /* Rd, {Rs,} Rn */
+ {
+ constraint (inst.operands[2].reg > 7, BAD_HIREG);
+ constraint (inst.operands[0].reg != inst.operands[1].reg,
+ _("source1 and dest must be same register"));
- if (*str == '|' || *str == '+')
+ switch (inst.instruction)
+ {
+ case T_MNEM_asr: inst.instruction = T_OPCODE_ASR_R; break;
+ case T_MNEM_lsl: inst.instruction = T_OPCODE_LSL_R; break;
+ case T_MNEM_lsr: inst.instruction = T_OPCODE_LSR_R; break;
+ case T_MNEM_ror: inst.instruction = T_OPCODE_ROR_R; break;
+ default: abort ();
+ }
+
+ inst.instruction |= inst.operands[0].reg;
+ inst.instruction |= inst.operands[2].reg << 3;
+ }
+ else
{
- str++;
- another_range = 1;
+ switch (inst.instruction)
+ {
+ case T_MNEM_asr: inst.instruction = T_OPCODE_ASR_I; break;
+ case T_MNEM_lsl: inst.instruction = T_OPCODE_LSL_I; break;
+ case T_MNEM_lsr: inst.instruction = T_OPCODE_LSR_I; break;
+ case T_MNEM_ror: inst.error = _("ror #imm not supported"); return;
+ default: abort ();
+ }
+ inst.reloc.type = BFD_RELOC_ARM_THUMB_SHIFT;
+ inst.instruction |= inst.operands[0].reg;
+ inst.instruction |= inst.operands[1].reg << 3;
}
}
- while (another_range);
-
- *strp = str;
- return range;
}
static void
-do_ldmstm (char * str)
+do_t_simd (void)
{
- int base_reg;
- long range;
-
- skip_whitespace (str);
-
- if ((base_reg = reg_required_here (&str, 16)) == FAIL)
- return;
-
- if (base_reg == REG_PC)
- {
- inst.error = _("r15 not allowed as base register");
- return;
- }
-
- skip_whitespace (str);
+ inst.instruction |= inst.operands[0].reg << 8;
+ inst.instruction |= inst.operands[1].reg << 16;
+ inst.instruction |= inst.operands[2].reg;
+}
- if (*str == '!')
- {
- inst.instruction |= WRITE_BACK;
- str++;
- }
+static void
+do_t_smi (void)
+{
+ unsigned int value = inst.reloc.exp.X_add_number;
+ constraint (inst.reloc.exp.X_op != O_constant,
+ _("expression too complex"));
+ inst.reloc.type = BFD_RELOC_UNUSED;
+ inst.instruction |= (value & 0xf000) >> 12;
+ inst.instruction |= (value & 0x0ff0);
+ inst.instruction |= (value & 0x000f) << 16;
+}
- if (skip_past_comma (&str) == FAIL
- || (range = reg_list (&str)) == FAIL)
- {
- if (! inst.error)
- inst.error = BAD_ARGS;
- return;
- }
+static void
+do_t_ssat (void)
+{
+ inst.instruction |= inst.operands[0].reg << 8;
+ inst.instruction |= inst.operands[1].imm - 1;
+ inst.instruction |= inst.operands[2].reg << 16;
- if (*str == '^')
+ if (inst.operands[3].present)
{
- str++;
- inst.instruction |= LDM_TYPE_2_OR_3;
- }
+ constraint (inst.reloc.exp.X_op != O_constant,
+ _("expression too complex"));
- if (inst.instruction & WRITE_BACK)
- {
- /* Check for unpredictable uses of writeback. */
- if (inst.instruction & LOAD_BIT)
+ if (inst.reloc.exp.X_add_number != 0)
{
- /* Not allowed in LDM type 2. */
- if ((inst.instruction & LDM_TYPE_2_OR_3)
- && ((range & (1 << REG_PC)) == 0))
- as_warn (_("writeback of base register is UNPREDICTABLE"));
- /* Only allowed if base reg not in list for other types. */
- else if (range & (1 << base_reg))
- as_warn (_("writeback of base register when in register list is UNPREDICTABLE"));
- }
- else /* STM. */
- {
- /* Not allowed for type 2. */
- if (inst.instruction & LDM_TYPE_2_OR_3)
- as_warn (_("writeback of base register is UNPREDICTABLE"));
- /* Only allowed if base reg not in list, or first in list. */
- else if ((range & (1 << base_reg))
- && (range & ((1 << base_reg) - 1)))
- as_warn (_("if writeback register is in list, it must be the lowest reg in the list"));
+ if (inst.operands[3].shift_kind == SHIFT_ASR)
+ inst.instruction |= 0x00200000; /* sh bit */
+ inst.instruction |= (inst.reloc.exp.X_add_number & 0x1c) << 10;
+ inst.instruction |= (inst.reloc.exp.X_add_number & 0x03) << 6;
}
+ inst.reloc.type = BFD_RELOC_UNUSED;
}
-
- inst.instruction |= range;
- end_of_line (str);
}
static void
-do_smi (char * str)
+do_t_ssat16 (void)
{
- skip_whitespace (str);
-
- /* Allow optional leading '#'. */
- if (is_immediate_prefix (*str))
- str++;
+ inst.instruction |= inst.operands[0].reg << 8;
+ inst.instruction |= inst.operands[1].imm - 1;
+ inst.instruction |= inst.operands[2].reg << 16;
+}
- if (my_get_expression (& inst.reloc.exp, & str))
- return;
+static void
+do_t_strex (void)
+{
+ constraint (!inst.operands[2].isreg || !inst.operands[2].preind
+ || inst.operands[2].postind || inst.operands[2].writeback
+ || inst.operands[2].immisreg || inst.operands[2].shifted
+ || inst.operands[2].negative,
+ _("instruction does not accept this addressing mode"));
- inst.reloc.type = BFD_RELOC_ARM_SMI;
- inst.reloc.pc_rel = 0;
- end_of_line (str);
+ inst.instruction |= inst.operands[0].reg << 8;
+ inst.instruction |= inst.operands[1].reg << 12;
+ inst.instruction |= inst.operands[2].reg << 16;
+ inst.reloc.type = BFD_RELOC_ARM_T32_OFFSET_U8;
}
static void
-do_swi (char * str)
+do_t_strexd (void)
{
- skip_whitespace (str);
+ if (!inst.operands[2].present)
+ inst.operands[2].reg = inst.operands[1].reg + 1;
- /* Allow optional leading '#'. */
- if (is_immediate_prefix (*str))
- str++;
+ constraint (inst.operands[0].reg == inst.operands[1].reg
+ || inst.operands[0].reg == inst.operands[2].reg
+ || inst.operands[0].reg == inst.operands[3].reg
+ || inst.operands[1].reg == inst.operands[2].reg,
+ BAD_OVERLAP);
- if (my_get_expression (& inst.reloc.exp, & str))
- return;
-
- inst.reloc.type = BFD_RELOC_ARM_SWI;
- inst.reloc.pc_rel = 0;
- end_of_line (str);
+ inst.instruction |= inst.operands[0].reg;
+ inst.instruction |= inst.operands[1].reg << 12;
+ inst.instruction |= inst.operands[2].reg << 8;
+ inst.instruction |= inst.operands[3].reg << 16;
}
static void
-do_swap (char * str)
+do_t_sxtah (void)
{
- int reg;
-
- skip_whitespace (str);
-
- if ((reg = reg_required_here (&str, 12)) == FAIL)
- return;
+ inst.instruction |= inst.operands[0].reg << 8;
+ inst.instruction |= inst.operands[1].reg << 16;
+ inst.instruction |= inst.operands[2].reg;
+ inst.instruction |= inst.operands[3].imm << 4;
+}
- if (reg == REG_PC)
+static void
+do_t_sxth (void)
+{
+ if (inst.instruction <= 0xffff && inst.size_req != 4
+ && inst.operands[0].reg <= 7 && inst.operands[1].reg <= 7
+ && (!inst.operands[2].present || inst.operands[2].imm == 0))
{
- inst.error = _("r15 not allowed in swap");
- return;
+ inst.instruction = THUMB_OP16 (inst.instruction);
+ inst.instruction |= inst.operands[0].reg;
+ inst.instruction |= inst.operands[1].reg << 3;
}
-
- if (skip_past_comma (&str) == FAIL
- || (reg = reg_required_here (&str, 0)) == FAIL)
+ else if (unified_syntax)
{
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
+ if (inst.instruction <= 0xffff)
+ inst.instruction = THUMB_OP32 (inst.instruction);
+ inst.instruction |= inst.operands[0].reg << 8;
+ inst.instruction |= inst.operands[1].reg;
+ inst.instruction |= inst.operands[2].imm << 4;
}
-
- if (reg == REG_PC)
+ else
{
- inst.error = _("r15 not allowed in swap");
- return;
+ constraint (inst.operands[2].present && inst.operands[2].imm != 0,
+ _("Thumb encoding does not support rotation"));
+ constraint (1, BAD_HIREG);
}
+}
- if (skip_past_comma (&str) == FAIL
- || *str++ != '[')
- {
- inst.error = BAD_ARGS;
- return;
- }
-
- skip_whitespace (str);
+static void
+do_t_swi (void)
+{
+ inst.reloc.type = BFD_RELOC_ARM_SWI;
+}
- if ((reg = reg_required_here (&str, 16)) == FAIL)
- return;
+static void
+do_t_usat (void)
+{
+ inst.instruction |= inst.operands[0].reg << 8;
+ inst.instruction |= inst.operands[1].imm;
+ inst.instruction |= inst.operands[2].reg << 16;
- if (reg == REG_PC)
+ if (inst.operands[3].present)
{
- inst.error = BAD_PC;
- return;
- }
-
- skip_whitespace (str);
+ constraint (inst.reloc.exp.X_op != O_constant,
+ _("expression too complex"));
+ if (inst.reloc.exp.X_add_number != 0)
+ {
+ if (inst.operands[3].shift_kind == SHIFT_ASR)
+ inst.instruction |= 0x00200000; /* sh bit */
- if (*str++ != ']')
- {
- inst.error = _("missing ]");
- return;
+ inst.instruction |= (inst.reloc.exp.X_add_number & 0x1c) << 10;
+ inst.instruction |= (inst.reloc.exp.X_add_number & 0x03) << 6;
+ }
+ inst.reloc.type = BFD_RELOC_UNUSED;
}
-
- end_of_line (str);
}
static void
-do_branch (char * str)
+do_t_usat16 (void)
{
- if (my_get_expression (&inst.reloc.exp, &str))
- return;
-
-#ifdef OBJ_ELF
- {
- char * save_in;
-
- /* ScottB: February 5, 1998 - Check to see of PLT32 reloc
- required for the instruction. */
-
- /* arm_parse_reloc () works on input_line_pointer.
- We actually want to parse the operands to the branch instruction
- passed in 'str'. Save the input pointer and restore it later. */
- save_in = input_line_pointer;
- input_line_pointer = str;
- if (inst.reloc.exp.X_op == O_symbol
- && *str == '('
- && arm_parse_reloc () == BFD_RELOC_ARM_PLT32)
- {
- inst.reloc.type = BFD_RELOC_ARM_PLT32;
- inst.reloc.pc_rel = 0;
- /* Modify str to point to after parsed operands, otherwise
- end_of_line() will complain about the (PLT) left in str. */
- str = input_line_pointer;
- }
- else
- {
- inst.reloc.type = BFD_RELOC_ARM_PCREL_BRANCH;
- inst.reloc.pc_rel = 1;
- }
- input_line_pointer = save_in;
- }
-#else
- inst.reloc.type = BFD_RELOC_ARM_PCREL_BRANCH;
- inst.reloc.pc_rel = 1;
-#endif /* OBJ_ELF */
-
- end_of_line (str);
+ inst.instruction |= inst.operands[0].reg << 8;
+ inst.instruction |= inst.operands[1].imm;
+ inst.instruction |= inst.operands[2].reg << 16;
}
+\f
+/* Overall per-instruction processing. */
+
+/* We need to be able to fix up arbitrary expressions in some statements.
+ This is so that we can handle symbols that are an arbitrary distance from
+ the pc. The most common cases are of the form ((+/-sym -/+ . - 8) & mask),
+ which returns part of an address in a form which will be valid for
+ a data instruction. We do this by pushing the expression into a symbol
+ in the expr_section, and creating a fix for that. */
static void
-do_cdp (char * str)
+fix_new_arm (fragS * frag,
+ int where,
+ short int size,
+ expressionS * exp,
+ int pc_rel,
+ int reloc)
{
- /* Co-processor data operation.
- Format: CDP{cond} CP#,<expr>,CRd,CRn,CRm{,<expr>} */
- skip_whitespace (str);
-
- if (co_proc_number (&str) == FAIL)
- {
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
- }
-
- if (skip_past_comma (&str) == FAIL
- || cp_opc_expr (&str, 20,4) == FAIL)
- {
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
- }
-
- if (skip_past_comma (&str) == FAIL
- || cp_reg_required_here (&str, 12) == FAIL)
- {
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
- }
-
- if (skip_past_comma (&str) == FAIL
- || cp_reg_required_here (&str, 16) == FAIL)
- {
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
- }
+ fixS * new_fix;
- if (skip_past_comma (&str) == FAIL
- || cp_reg_required_here (&str, 0) == FAIL)
+ switch (exp->X_op)
{
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
- }
+ case O_constant:
+ case O_symbol:
+ case O_add:
+ case O_subtract:
+ new_fix = fix_new_exp (frag, where, size, exp, pc_rel, reloc);
+ break;
- if (skip_past_comma (&str) == SUCCESS)
- {
- if (cp_opc_expr (&str, 5, 3) == FAIL)
- {
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
- }
+ default:
+ new_fix = fix_new (frag, where, size, make_expr_symbol (exp), 0,
+ pc_rel, reloc);
+ break;
}
- end_of_line (str);
+ /* Mark whether the fix is to a THUMB instruction, or an ARM
+ instruction. */
+ new_fix->tc_fix_data = (PTR) thumb_mode;
}
static void
-do_lstc (char * str)
+output_inst (const char * str)
{
- /* Co-processor register load/store.
- Format: <LDC|STC{cond}[L] CP#,CRd,<address> */
-
- skip_whitespace (str);
+ char * to = NULL;
- if (co_proc_number (&str) == FAIL)
+ if (inst.error)
{
- if (!inst.error)
- inst.error = BAD_ARGS;
+ as_bad ("%s -- `%s'", inst.error, str);
return;
}
+ if (inst.size == 0)
+ return;
- if (skip_past_comma (&str) == FAIL
- || cp_reg_required_here (&str, 12) == FAIL)
+ to = frag_more (inst.size);
+
+ if (thumb_mode && (inst.size > THUMB_SIZE))
{
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
+ assert (inst.size == (2 * THUMB_SIZE));
+ md_number_to_chars (to, inst.instruction >> 16, THUMB_SIZE);
+ md_number_to_chars (to + THUMB_SIZE, inst.instruction, THUMB_SIZE);
}
-
- if (skip_past_comma (&str) == FAIL
- || cp_address_required_here (&str, CP_WB_OK) == FAIL)
+ else if (inst.size > INSN_SIZE)
{
- if (! inst.error)
- inst.error = BAD_ARGS;
- return;
+ assert (inst.size == (2 * INSN_SIZE));
+ md_number_to_chars (to, inst.instruction, INSN_SIZE);
+ md_number_to_chars (to + INSN_SIZE, inst.instruction, INSN_SIZE);
}
+ else
+ md_number_to_chars (to, inst.instruction, inst.size);
- end_of_line (str);
-}
-
-static void
-do_co_reg (char * str)
-{
- /* Co-processor register transfer.
- Format: <MCR|MRC>{cond} CP#,<expr1>,Rd,CRn,CRm{,<expr2>} */
+ if (inst.reloc.type != BFD_RELOC_UNUSED)
+ fix_new_arm (frag_now, to - frag_now->fr_literal,
+ inst.size, & inst.reloc.exp, inst.reloc.pc_rel,
+ inst.reloc.type);
- skip_whitespace (str);
+#ifdef OBJ_ELF
+ dwarf2_emit_insn (inst.size);
+#endif
+}
- if (co_proc_number (&str) == FAIL)
- {
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
- }
+/* Tag values used in struct asm_opcode's tag field. */
+enum opcode_tag
+{
+ OT_unconditional, /* Instruction cannot be conditionalized.
+ The ARM condition field is still 0xE. */
+ OT_unconditionalF, /* Instruction cannot be conditionalized
+ and carries 0xF in its ARM condition field. */
+ OT_csuffix, /* Instruction takes a conditional suffix. */
+ OT_cinfix3, /* Instruction takes a conditional infix,
+ beginning at character index 3. (In
+ unified mode, it becomes a suffix.) */
+ OT_csuf_or_in3, /* Instruction takes either a conditional
+ suffix or an infix at character index 3.
+ (In unified mode, a suffix only. */
+ OT_odd_infix_unc, /* This is the unconditional variant of an
+ instruction that takes a conditional infix
+ at an unusual position. In unified mode,
+ this variant will accept a suffix. */
+ OT_odd_infix_0 /* Values greater than or equal to OT_odd_infix_0
+ are the conditional variants of instructions that
+ take conditional infixes in unusual positions.
+ The infix appears at character index
+ (tag - OT_odd_infix_0). These are not accepted
+ in unified mode. */
+};
- if (skip_past_comma (&str) == FAIL
- || cp_opc_expr (&str, 21, 3) == FAIL)
- {
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
- }
+/* Subroutine of md_assemble, responsible for looking up the primary
+ opcode from the mnemonic the user wrote. STR points to the
+ beginning of the mnemonic.
+
+ This is not simply a hash table lookup, because of conditional
+ variants. Most instructions have conditional variants, which are
+ expressed with a _conditional affix_ to the mnemonic. If we were
+ to encode each conditional variant as a literal string in the opcode
+ table, it would have approximately 20,000 entries.
+
+ Most mnemonics take this affix as a suffix, and in unified syntax,
+ 'most' is upgraded to 'all'. However, in the divided syntax, some
+ instructions take the affix as an infix, notably the s-variants of
+ the arithmetic instructions. Of those instructions, all but six
+ have the infix appear after the third character of the mnemonic.
+
+ Accordingly, the algorithm for looking up primary opcodes given
+ an identifier is:
+
+ 1. Look up the identifier in the opcode table.
+ If we find a match, go to step U.
+
+ 2. Look up the last two characters of the identifier in the
+ conditions table. If we find a match, look up the first N-2
+ characters of the identifier in the opcode table. If we
+ find a match, go to step CE.
+
+ 3. Look up the fourth and fifth characters of the identifier in
+ the conditions table. If we find a match, extract those
+ characters from the identifier, and look up the remaining
+ characters in the opcode table. If we find a match, go
+ to step CM.
+
+ 4. Fail.
+
+ U. Examine the tag field of the opcode structure, in case this is
+ one of the six instructions with its conditional infix in an
+ unusual place. If it is, the tag tells us where to find the
+ infix; look it up in the conditions table and set inst.cond
+ accordingly. Otherwise, this is an unconditional instruction.
+ Again set inst.cond accordingly. Return the opcode structure.
+
+ CE. Examine the tag field to make sure this is an instruction that
+ should receive a conditional suffix. If it is not, fail.
+ Otherwise, set inst.cond from the suffix we already looked up,
+ and return the opcode structure.
+
+ CM. Examine the tag field to make sure this is an instruction that
+ should receive a conditional infix after the third character.
+ If it is not, fail. Otherwise, undo the edits to the current
+ line of input and proceed as for case CE. */
+
+static const struct asm_opcode *
+opcode_lookup (char **str)
+{
+ char *end, *base;
+ char *affix;
+ const struct asm_opcode *opcode;
+ const struct asm_cond *cond;
+
+ /* Scan up to the end of the mnemonic, which must end in white space,
+ '.' (in unified mode only), or end of string. */
+ for (base = end = *str; *end != '\0'; end++)
+ if (*end == ' ' || (unified_syntax && *end == '.'))
+ break;
- if (skip_past_comma (&str) == FAIL
- || reg_required_here (&str, 12) == FAIL)
- {
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
- }
+ if (end == base)
+ return 0;
- if (skip_past_comma (&str) == FAIL
- || cp_reg_required_here (&str, 16) == FAIL)
+ /* Handle a possible width suffix. */
+ if (end[0] == '.')
{
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
- }
+ if (end[1] == 'w' && (end[2] == ' ' || end[2] == '\0'))
+ inst.size_req = 4;
+ else if (end[1] == 'n' && (end[2] == ' ' || end[2] == '\0'))
+ inst.size_req = 2;
+ else
+ return 0;
- if (skip_past_comma (&str) == FAIL
- || cp_reg_required_here (&str, 0) == FAIL)
- {
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
+ *str = end + 2;
}
+ else
+ *str = end;
- if (skip_past_comma (&str) == SUCCESS)
+ /* Look for unaffixed or special-case affixed mnemonic. */
+ opcode = hash_find_n (arm_ops_hsh, base, end - base);
+ if (opcode)
{
- if (cp_opc_expr (&str, 5, 3) == FAIL)
+ /* step U */
+ if (opcode->tag < OT_odd_infix_0)
{
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
+ inst.cond = COND_ALWAYS;
+ return opcode;
}
- }
- end_of_line (str);
-}
+ if (unified_syntax)
+ as_warn (_("conditional infixes are deprecated in unified syntax"));
+ affix = base + (opcode->tag - OT_odd_infix_0);
+ cond = hash_find_n (arm_cond_hsh, affix, 2);
+ assert (cond);
-static void
-do_fpa_ctrl (char * str)
-{
- /* FP control registers.
- Format: <WFS|RFS|WFC|RFC>{cond} Rn */
+ inst.cond = cond->value;
+ return opcode;
+ }
- skip_whitespace (str);
+ /* Cannot have a conditional suffix on a mnemonic of less than two
+ characters. */
+ if (end - base < 3)
+ return 0;
- if (reg_required_here (&str, 12) == FAIL)
- {
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
- }
+ /* Look for suffixed mnemonic. */
+ affix = end - 2;
+ cond = hash_find_n (arm_cond_hsh, affix, 2);
+ opcode = hash_find_n (arm_ops_hsh, base, affix - base);
+ if (opcode && cond)
+ {
+ /* step CE */
+ switch (opcode->tag)
+ {
+ case OT_cinfix3:
+ case OT_odd_infix_unc:
+ if (!unified_syntax)
+ return 0;
+ /* else fall through */
+
+ case OT_csuffix:
+ case OT_csuf_or_in3:
+ inst.cond = cond->value;
+ return opcode;
+
+ case OT_unconditional:
+ case OT_unconditionalF:
+ /* delayed diagnostic */
+ inst.error = BAD_COND;
+ inst.cond = COND_ALWAYS;
+ return opcode;
- end_of_line (str);
-}
+ default:
+ return 0;
+ }
+ }
-static void
-do_fpa_ldst (char * str)
-{
- skip_whitespace (str);
+ /* Cannot have a usual-position infix on a mnemonic of less than
+ six characters (five would be a suffix). */
+ if (end - base < 6)
+ return 0;
- if (fp_reg_required_here (&str, 12) == FAIL)
+ /* Look for infixed mnemonic in the usual position. */
+ affix = base + 3;
+ cond = hash_find_n (arm_cond_hsh, affix, 2);
+ if (cond)
{
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
+ char save[2];
+ memcpy (save, affix, 2);
+ memmove (affix, affix + 2, (end - affix) - 2);
+ opcode = hash_find_n (arm_ops_hsh, base, (end - base) - 2);
+ memmove (affix + 2, affix, (end - affix) - 2);
+ memcpy (affix, save, 2);
}
-
- if (skip_past_comma (&str) == FAIL
- || cp_address_required_here (&str, CP_WB_OK) == FAIL)
+ if (opcode && (opcode->tag == OT_cinfix3 || opcode->tag == OT_csuf_or_in3))
{
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
+ /* step CM */
+ if (unified_syntax)
+ as_warn (_("conditional infixes are deprecated in unified syntax"));
+
+ inst.cond = cond->value;
+ return opcode;
}
- end_of_line (str);
+ return 0;
}
-static void
-do_fpa_ldmstm (char * str)
+void
+md_assemble (char *str)
{
- int num_regs;
+ char *p = str;
+ const struct asm_opcode * opcode;
- skip_whitespace (str);
-
- if (fp_reg_required_here (&str, 12) == FAIL)
+ /* Align the previous label if needed. */
+ if (last_label_seen != NULL)
{
- if (! inst.error)
- inst.error = BAD_ARGS;
- return;
+ symbol_set_frag (last_label_seen, frag_now);
+ S_SET_VALUE (last_label_seen, (valueT) frag_now_fix ());
+ S_SET_SEGMENT (last_label_seen, now_seg);
}
- /* Get Number of registers to transfer. */
- if (skip_past_comma (&str) == FAIL
- || my_get_expression (&inst.reloc.exp, &str))
- {
- if (! inst.error)
- inst.error = _("constant expression expected");
- return;
- }
+ memset (&inst, '\0', sizeof (inst));
+ inst.reloc.type = BFD_RELOC_UNUSED;
- if (inst.reloc.exp.X_op != O_constant)
+ opcode = opcode_lookup (&p);
+ if (!opcode)
{
- inst.error = _("constant value required for number of registers");
- return;
- }
+ /* It wasn't an instruction, but it might be a register alias of
+ the form alias .req reg. */
+ if (!create_register_alias (str, p))
+ as_bad (_("bad instruction `%s'"), str);
- num_regs = inst.reloc.exp.X_add_number;
-
- if (num_regs < 1 || num_regs > 4)
- {
- inst.error = _("number of registers must be in the range [1:4]");
return;
}
- switch (num_regs)
- {
- case 1:
- inst.instruction |= CP_T_X;
- break;
- case 2:
- inst.instruction |= CP_T_Y;
- break;
- case 3:
- inst.instruction |= CP_T_Y | CP_T_X;
- break;
- case 4:
- break;
- default:
- abort ();
- }
-
- if (inst.instruction & (CP_T_Pre | CP_T_UD)) /* ea/fd format. */
+ if (thumb_mode)
{
- int reg;
- int write_back;
- int offset;
-
- /* The instruction specified "ea" or "fd", so we can only accept
- [Rn]{!}. The instruction does not really support stacking or
- unstacking, so we have to emulate these by setting appropriate
- bits and offsets. */
- if (skip_past_comma (&str) == FAIL
- || *str != '[')
+ /* Check that this instruction is supported for this CPU. */
+ if (thumb_mode == 1 && (opcode->tvariant & cpu_variant) == 0)
{
- if (! inst.error)
- inst.error = BAD_ARGS;
+ as_bad (_("selected processor does not support `%s'"), str);
return;
}
-
- str++;
- skip_whitespace (str);
-
- if ((reg = reg_required_here (&str, 16)) == FAIL)
- return;
-
- skip_whitespace (str);
-
- if (*str != ']')
+ if (inst.cond != COND_ALWAYS && !unified_syntax
+ && opcode->tencode != do_t_branch)
{
- inst.error = BAD_ARGS;
+ as_bad (_("Thumb does not support conditional execution"));
return;
}
- str++;
- if (*str == '!')
+ mapping_state (MAP_THUMB);
+ inst.instruction = opcode->tvalue;
+
+ if (!parse_operands (p, opcode->operands))
+ opcode->tencode ();
+
+ if (!inst.error)
{
- write_back = 1;
- str++;
- if (reg == REG_PC)
+ assert (inst.instruction < 0xe800 || inst.instruction > 0xffff);
+ inst.size = (inst.instruction > 0xffff ? 4 : 2);
+ if (inst.size_req && inst.size_req != inst.size)
{
- inst.error =
- _("r15 not allowed as base register with write-back");
+ as_bad (_("cannot honor width suffix -- `%s'"), str);
return;
}
}
- else
- write_back = 0;
-
- if (inst.instruction & CP_T_Pre)
+ }
+ else
+ {
+ /* Check that this instruction is supported for this CPU. */
+ if ((opcode->avariant & cpu_variant) == 0)
{
- /* Pre-decrement. */
- offset = 3 * num_regs;
- if (write_back)
- inst.instruction |= CP_T_WB;
+ as_bad (_("selected processor does not support `%s'"), str);
+ return;
}
- else
+ if (inst.size_req)
{
- /* Post-increment. */
- if (write_back)
- {
- inst.instruction |= CP_T_WB;
- offset = 3 * num_regs;
- }
- else
- {
- /* No write-back, so convert this into a standard pre-increment
- instruction -- aesthetically more pleasing. */
- inst.instruction |= CP_T_Pre | CP_T_UD;
- offset = 0;
- }
+ as_bad (_("width suffixes are invalid in ARM mode -- `%s'"), str);
+ return;
}
- inst.instruction |= offset;
- }
- else if (skip_past_comma (&str) == FAIL
- || cp_address_required_here (&str, CP_WB_OK) == FAIL)
- {
- if (! inst.error)
- inst.error = BAD_ARGS;
- return;
+ mapping_state (MAP_ARM);
+ inst.instruction = opcode->avalue;
+ if (opcode->tag == OT_unconditionalF)
+ inst.instruction |= 0xF << 28;
+ else
+ inst.instruction |= inst.cond << 28;
+ inst.size = INSN_SIZE;
+ if (!parse_operands (p, opcode->operands))
+ opcode->aencode ();
}
+ output_inst (str);
+}
- end_of_line (str);
+/* Various frobbings of labels and their addresses. */
+
+void
+arm_start_line_hook (void)
+{
+ last_label_seen = NULL;
}
-static void
-do_fpa_dyadic (char * str)
+void
+arm_frob_label (symbolS * sym)
{
- skip_whitespace (str);
+ last_label_seen = sym;
- if (fp_reg_required_here (&str, 12) == FAIL)
- {
- if (! inst.error)
- inst.error = BAD_ARGS;
- return;
- }
+ ARM_SET_THUMB (sym, thumb_mode);
- if (skip_past_comma (&str) == FAIL
- || fp_reg_required_here (&str, 16) == FAIL)
- {
- if (! inst.error)
- inst.error = BAD_ARGS;
- return;
- }
+#if defined OBJ_COFF || defined OBJ_ELF
+ ARM_SET_INTERWORK (sym, support_interwork);
+#endif
- if (skip_past_comma (&str) == FAIL
- || fp_op2 (&str) == FAIL)
- {
- if (! inst.error)
- inst.error = BAD_ARGS;
- return;
- }
+ /* Note - do not allow local symbols (.Lxxx) to be labeled
+ as Thumb functions. This is because these labels, whilst
+ they exist inside Thumb code, are not the entry points for
+ possible ARM->Thumb calls. Also, these labels can be used
+ as part of a computed goto or switch statement. eg gcc
+ can generate code that looks like this:
- end_of_line (str);
-}
+ ldr r2, [pc, .Laaa]
+ lsl r3, r3, #2
+ ldr r2, [r3, r2]
+ mov pc, r2
-static void
-do_fpa_monadic (char * str)
-{
- skip_whitespace (str);
+ .Lbbb: .word .Lxxx
+ .Lccc: .word .Lyyy
+ ..etc...
+ .Laaa: .word Lbbb
- if (fp_reg_required_here (&str, 12) == FAIL)
- {
- if (! inst.error)
- inst.error = BAD_ARGS;
- return;
- }
+ The first instruction loads the address of the jump table.
+ The second instruction converts a table index into a byte offset.
+ The third instruction gets the jump address out of the table.
+ The fourth instruction performs the jump.
- if (skip_past_comma (&str) == FAIL
- || fp_op2 (&str) == FAIL)
+ If the address stored at .Laaa is that of a symbol which has the
+ Thumb_Func bit set, then the linker will arrange for this address
+ to have the bottom bit set, which in turn would mean that the
+ address computation performed by the third instruction would end
+ up with the bottom bit set. Since the ARM is capable of unaligned
+ word loads, the instruction would then load the incorrect address
+ out of the jump table, and chaos would ensue. */
+ if (label_is_thumb_function_name
+ && (S_GET_NAME (sym)[0] != '.' || S_GET_NAME (sym)[1] != 'L')
+ && (bfd_get_section_flags (stdoutput, now_seg) & SEC_CODE) != 0)
{
- if (! inst.error)
- inst.error = BAD_ARGS;
- return;
- }
-
- end_of_line (str);
-}
-
-static void
-do_fpa_cmp (char * str)
-{
- skip_whitespace (str);
+ /* When the address of a Thumb function is taken the bottom
+ bit of that address should be set. This will allow
+ interworking between Arm and Thumb functions to work
+ correctly. */
- if (fp_reg_required_here (&str, 16) == FAIL)
- {
- if (! inst.error)
- inst.error = BAD_ARGS;
- return;
- }
+ THUMB_SET_FUNC (sym, 1);
- if (skip_past_comma (&str) == FAIL
- || fp_op2 (&str) == FAIL)
- {
- if (! inst.error)
- inst.error = BAD_ARGS;
- return;
+ label_is_thumb_function_name = FALSE;
}
-
- end_of_line (str);
}
-static void
-do_fpa_from_reg (char * str)
+int
+arm_data_in_code (void)
{
- skip_whitespace (str);
-
- if (fp_reg_required_here (&str, 16) == FAIL)
- {
- if (! inst.error)
- inst.error = BAD_ARGS;
- return;
- }
-
- if (skip_past_comma (&str) == FAIL
- || reg_required_here (&str, 12) == FAIL)
+ if (thumb_mode && ! strncmp (input_line_pointer + 1, "data:", 5))
{
- if (! inst.error)
- inst.error = BAD_ARGS;
- return;
+ *input_line_pointer = '/';
+ input_line_pointer += 5;
+ *input_line_pointer = 0;
+ return 1;
}
- end_of_line (str);
+ return 0;
}
-static void
-do_fpa_to_reg (char * str)
+char *
+arm_canonicalize_symbol_name (char * name)
{
- skip_whitespace (str);
-
- if (reg_required_here (&str, 12) == FAIL)
- return;
+ int len;
- if (skip_past_comma (&str) == FAIL
- || fp_reg_required_here (&str, 0) == FAIL)
- {
- if (! inst.error)
- inst.error = BAD_ARGS;
- return;
- }
+ if (thumb_mode && (len = strlen (name)) > 5
+ && streq (name + len - 5, "/data"))
+ *(name + len - 5) = 0;
- end_of_line (str);
+ return name;
}
+\f
+/* Table of all register names defined by default. The user can
+ define additional names with .req. Note that all register names
+ should appear in both upper and lowercase variants. Some registers
+ also have mixed-case names. */
-/* Encode a VFP SP register number. */
+#define REGDEF(s,n,t) { #s, n, REG_TYPE_##t, TRUE }
+#define REGNUM(p,n,t) REGDEF(p##n, n, t)
+#define REGSET(p,t) \
+ REGNUM(p, 0,t), REGNUM(p, 1,t), REGNUM(p, 2,t), REGNUM(p, 3,t), \
+ REGNUM(p, 4,t), REGNUM(p, 5,t), REGNUM(p, 6,t), REGNUM(p, 7,t), \
+ REGNUM(p, 8,t), REGNUM(p, 9,t), REGNUM(p,10,t), REGNUM(p,11,t), \
+ REGNUM(p,12,t), REGNUM(p,13,t), REGNUM(p,14,t), REGNUM(p,15,t)
-static void
-vfp_sp_encode_reg (int reg, enum vfp_sp_reg_pos pos)
+static const struct reg_entry reg_names[] =
{
- switch (pos)
- {
- case VFP_REG_Sd:
- inst.instruction |= ((reg >> 1) << 12) | ((reg & 1) << 22);
- break;
+ /* ARM integer registers. */
+ REGSET(r, RN), REGSET(R, RN),
- case VFP_REG_Sn:
- inst.instruction |= ((reg >> 1) << 16) | ((reg & 1) << 7);
- break;
+ /* ATPCS synonyms. */
+ REGDEF(a1,0,RN), REGDEF(a2,1,RN), REGDEF(a3, 2,RN), REGDEF(a4, 3,RN),
+ REGDEF(v1,4,RN), REGDEF(v2,5,RN), REGDEF(v3, 6,RN), REGDEF(v4, 7,RN),
+ REGDEF(v5,8,RN), REGDEF(v6,9,RN), REGDEF(v7,10,RN), REGDEF(v8,11,RN),
- case VFP_REG_Sm:
- inst.instruction |= ((reg >> 1) << 0) | ((reg & 1) << 5);
- break;
+ REGDEF(A1,0,RN), REGDEF(A2,1,RN), REGDEF(A3, 2,RN), REGDEF(A4, 3,RN),
+ REGDEF(V1,4,RN), REGDEF(V2,5,RN), REGDEF(V3, 6,RN), REGDEF(V4, 7,RN),
+ REGDEF(V5,8,RN), REGDEF(V6,9,RN), REGDEF(V7,10,RN), REGDEF(V8,11,RN),
- default:
- abort ();
- }
-}
+ /* Well-known aliases. */
+ REGDEF(wr, 7,RN), REGDEF(sb, 9,RN), REGDEF(sl,10,RN), REGDEF(fp,11,RN),
+ REGDEF(ip,12,RN), REGDEF(sp,13,RN), REGDEF(lr,14,RN), REGDEF(pc,15,RN),
+
+ REGDEF(WR, 7,RN), REGDEF(SB, 9,RN), REGDEF(SL,10,RN), REGDEF(FP,11,RN),
+ REGDEF(IP,12,RN), REGDEF(SP,13,RN), REGDEF(LR,14,RN), REGDEF(PC,15,RN),
+
+ /* Coprocessor numbers. */
+ REGSET(p, CP), REGSET(P, CP),
+
+ /* Coprocessor register numbers. The "cr" variants are for backward
+ compatibility. */
+ REGSET(c, CN), REGSET(C, CN),
+ REGSET(cr, CN), REGSET(CR, CN),
+
+ /* FPA registers. */
+ REGNUM(f,0,FN), REGNUM(f,1,FN), REGNUM(f,2,FN), REGNUM(f,3,FN),
+ REGNUM(f,4,FN), REGNUM(f,5,FN), REGNUM(f,6,FN), REGNUM(f,7, FN),
+
+ REGNUM(F,0,FN), REGNUM(F,1,FN), REGNUM(F,2,FN), REGNUM(F,3,FN),
+ REGNUM(F,4,FN), REGNUM(F,5,FN), REGNUM(F,6,FN), REGNUM(F,7, FN),
+
+ /* VFP SP registers. */
+ REGSET(s,VFS),
+ REGNUM(s,16,VFS), REGNUM(s,17,VFS), REGNUM(s,18,VFS), REGNUM(s,19,VFS),
+ REGNUM(s,20,VFS), REGNUM(s,21,VFS), REGNUM(s,22,VFS), REGNUM(s,23,VFS),
+ REGNUM(s,24,VFS), REGNUM(s,25,VFS), REGNUM(s,26,VFS), REGNUM(s,27,VFS),
+ REGNUM(s,28,VFS), REGNUM(s,29,VFS), REGNUM(s,30,VFS), REGNUM(s,31,VFS),
+
+ REGSET(S,VFS),
+ REGNUM(S,16,VFS), REGNUM(S,17,VFS), REGNUM(S,18,VFS), REGNUM(S,19,VFS),
+ REGNUM(S,20,VFS), REGNUM(S,21,VFS), REGNUM(S,22,VFS), REGNUM(S,23,VFS),
+ REGNUM(S,24,VFS), REGNUM(S,25,VFS), REGNUM(S,26,VFS), REGNUM(S,27,VFS),
+ REGNUM(S,28,VFS), REGNUM(S,29,VFS), REGNUM(S,30,VFS), REGNUM(S,31,VFS),
+
+ /* VFP DP Registers. */
+ REGSET(d,VFD), REGSET(D,VFS),
+
+ /* VFP control registers. */
+ REGDEF(fpsid,0,VFC), REGDEF(fpscr,1,VFC), REGDEF(fpexc,8,VFC),
+ REGDEF(FPSID,0,VFC), REGDEF(FPSCR,1,VFC), REGDEF(FPEXC,8,VFC),
+
+ /* Maverick DSP coprocessor registers. */
+ REGSET(mvf,MVF), REGSET(mvd,MVD), REGSET(mvfx,MVFX), REGSET(mvdx,MVDX),
+ REGSET(MVF,MVF), REGSET(MVD,MVD), REGSET(MVFX,MVFX), REGSET(MVDX,MVDX),
+
+ REGNUM(mvax,0,MVAX), REGNUM(mvax,1,MVAX),
+ REGNUM(mvax,2,MVAX), REGNUM(mvax,3,MVAX),
+ REGDEF(dspsc,0,DSPSC),
+
+ REGNUM(MVAX,0,MVAX), REGNUM(MVAX,1,MVAX),
+ REGNUM(MVAX,2,MVAX), REGNUM(MVAX,3,MVAX),
+ REGDEF(DSPSC,0,DSPSC),
+
+ /* iWMMXt data registers - p0, c0-15. */
+ REGSET(wr,MMXWR), REGSET(wR,MMXWR), REGSET(WR, MMXWR),
+
+ /* iWMMXt control registers - p1, c0-3. */
+ REGDEF(wcid, 0,MMXWC), REGDEF(wCID, 0,MMXWC), REGDEF(WCID, 0,MMXWC),
+ REGDEF(wcon, 1,MMXWC), REGDEF(wCon, 1,MMXWC), REGDEF(WCON, 1,MMXWC),
+ REGDEF(wcssf, 2,MMXWC), REGDEF(wCSSF, 2,MMXWC), REGDEF(WCSSF, 2,MMXWC),
+ REGDEF(wcasf, 3,MMXWC), REGDEF(wCASF, 3,MMXWC), REGDEF(WCASF, 3,MMXWC),
+
+ /* iWMMXt scalar (constant/offset) registers - p1, c8-11. */
+ REGDEF(wcgr0, 8,MMXWCG), REGDEF(wCGR0, 8,MMXWCG), REGDEF(WCGR0, 8,MMXWCG),
+ REGDEF(wcgr1, 9,MMXWCG), REGDEF(wCGR1, 9,MMXWCG), REGDEF(WCGR1, 9,MMXWCG),
+ REGDEF(wcgr2,10,MMXWCG), REGDEF(wCGR2,10,MMXWCG), REGDEF(WCGR2,10,MMXWCG),
+ REGDEF(wcgr3,11,MMXWCG), REGDEF(wCGR3,11,MMXWCG), REGDEF(WCGR3,11,MMXWCG),
+
+ /* XScale accumulator registers. */
+ REGNUM(acc,0,XSCALE), REGNUM(ACC,0,XSCALE),
+};
+#undef REGDEF
+#undef REGNUM
+#undef REGSET
-static int
-vfp_sp_reg_required_here (char ** str,
- enum vfp_sp_reg_pos pos)
+/* Table of all PSR suffixes. Bare "CPSR" and "SPSR" are handled
+ within psr_required_here. */
+static const struct asm_psr psrs[] =
+{
+ /* Backward compatibility notation. Note that "all" is no longer
+ truly all possible PSR bits. */
+ {"all", PSR_c | PSR_f},
+ {"flg", PSR_f},
+ {"ctl", PSR_c},
+
+ /* Individual flags. */
+ {"f", PSR_f},
+ {"c", PSR_c},
+ {"x", PSR_x},
+ {"s", PSR_s},
+ /* Combinations of flags. */
+ {"fs", PSR_f | PSR_s},
+ {"fx", PSR_f | PSR_x},
+ {"fc", PSR_f | PSR_c},
+ {"sf", PSR_s | PSR_f},
+ {"sx", PSR_s | PSR_x},
+ {"sc", PSR_s | PSR_c},
+ {"xf", PSR_x | PSR_f},
+ {"xs", PSR_x | PSR_s},
+ {"xc", PSR_x | PSR_c},
+ {"cf", PSR_c | PSR_f},
+ {"cs", PSR_c | PSR_s},
+ {"cx", PSR_c | PSR_x},
+ {"fsx", PSR_f | PSR_s | PSR_x},
+ {"fsc", PSR_f | PSR_s | PSR_c},
+ {"fxs", PSR_f | PSR_x | PSR_s},
+ {"fxc", PSR_f | PSR_x | PSR_c},
+ {"fcs", PSR_f | PSR_c | PSR_s},
+ {"fcx", PSR_f | PSR_c | PSR_x},
+ {"sfx", PSR_s | PSR_f | PSR_x},
+ {"sfc", PSR_s | PSR_f | PSR_c},
+ {"sxf", PSR_s | PSR_x | PSR_f},
+ {"sxc", PSR_s | PSR_x | PSR_c},
+ {"scf", PSR_s | PSR_c | PSR_f},
+ {"scx", PSR_s | PSR_c | PSR_x},
+ {"xfs", PSR_x | PSR_f | PSR_s},
+ {"xfc", PSR_x | PSR_f | PSR_c},
+ {"xsf", PSR_x | PSR_s | PSR_f},
+ {"xsc", PSR_x | PSR_s | PSR_c},
+ {"xcf", PSR_x | PSR_c | PSR_f},
+ {"xcs", PSR_x | PSR_c | PSR_s},
+ {"cfs", PSR_c | PSR_f | PSR_s},
+ {"cfx", PSR_c | PSR_f | PSR_x},
+ {"csf", PSR_c | PSR_s | PSR_f},
+ {"csx", PSR_c | PSR_s | PSR_x},
+ {"cxf", PSR_c | PSR_x | PSR_f},
+ {"cxs", PSR_c | PSR_x | PSR_s},
+ {"fsxc", PSR_f | PSR_s | PSR_x | PSR_c},
+ {"fscx", PSR_f | PSR_s | PSR_c | PSR_x},
+ {"fxsc", PSR_f | PSR_x | PSR_s | PSR_c},
+ {"fxcs", PSR_f | PSR_x | PSR_c | PSR_s},
+ {"fcsx", PSR_f | PSR_c | PSR_s | PSR_x},
+ {"fcxs", PSR_f | PSR_c | PSR_x | PSR_s},
+ {"sfxc", PSR_s | PSR_f | PSR_x | PSR_c},
+ {"sfcx", PSR_s | PSR_f | PSR_c | PSR_x},
+ {"sxfc", PSR_s | PSR_x | PSR_f | PSR_c},
+ {"sxcf", PSR_s | PSR_x | PSR_c | PSR_f},
+ {"scfx", PSR_s | PSR_c | PSR_f | PSR_x},
+ {"scxf", PSR_s | PSR_c | PSR_x | PSR_f},
+ {"xfsc", PSR_x | PSR_f | PSR_s | PSR_c},
+ {"xfcs", PSR_x | PSR_f | PSR_c | PSR_s},
+ {"xsfc", PSR_x | PSR_s | PSR_f | PSR_c},
+ {"xscf", PSR_x | PSR_s | PSR_c | PSR_f},
+ {"xcfs", PSR_x | PSR_c | PSR_f | PSR_s},
+ {"xcsf", PSR_x | PSR_c | PSR_s | PSR_f},
+ {"cfsx", PSR_c | PSR_f | PSR_s | PSR_x},
+ {"cfxs", PSR_c | PSR_f | PSR_x | PSR_s},
+ {"csfx", PSR_c | PSR_s | PSR_f | PSR_x},
+ {"csxf", PSR_c | PSR_s | PSR_x | PSR_f},
+ {"cxfs", PSR_c | PSR_x | PSR_f | PSR_s},
+ {"cxsf", PSR_c | PSR_x | PSR_s | PSR_f},
+};
+
+/* Table of all shift-in-operand names. */
+static const struct asm_shift_name shift_names [] =
{
- int reg;
- char * start = *str;
+ { "asl", SHIFT_LSL }, { "ASL", SHIFT_LSL },
+ { "lsl", SHIFT_LSL }, { "LSL", SHIFT_LSL },
+ { "lsr", SHIFT_LSR }, { "LSR", SHIFT_LSR },
+ { "asr", SHIFT_ASR }, { "ASR", SHIFT_ASR },
+ { "ror", SHIFT_ROR }, { "ROR", SHIFT_ROR },
+ { "rrx", SHIFT_RRX }, { "RRX", SHIFT_RRX }
+};
- if ((reg = arm_reg_parse (str, all_reg_maps[REG_TYPE_SN].htab)) != FAIL)
- {
- vfp_sp_encode_reg (reg, pos);
- return reg;
- }
+/* Table of all explicit relocation names. */
+#ifdef OBJ_ELF
+static struct reloc_entry reloc_names[] =
+{
+ { "got", BFD_RELOC_ARM_GOT32 }, { "GOT", BFD_RELOC_ARM_GOT32 },
+ { "gotoff", BFD_RELOC_ARM_GOTOFF }, { "GOTOFF", BFD_RELOC_ARM_GOTOFF },
+ { "plt", BFD_RELOC_ARM_PLT32 }, { "PLT", BFD_RELOC_ARM_PLT32 },
+ { "target1", BFD_RELOC_ARM_TARGET1 }, { "TARGET1", BFD_RELOC_ARM_TARGET1 },
+ { "target2", BFD_RELOC_ARM_TARGET2 }, { "TARGET2", BFD_RELOC_ARM_TARGET2 },
+ { "sbrel", BFD_RELOC_ARM_SBREL32 }, { "SBREL", BFD_RELOC_ARM_SBREL32 },
+ { "tlsgd", BFD_RELOC_ARM_TLS_GD32}, { "TLSGD", BFD_RELOC_ARM_TLS_GD32},
+ { "tlsldm", BFD_RELOC_ARM_TLS_LDM32}, { "TLSLDM", BFD_RELOC_ARM_TLS_LDM32},
+ { "tlsldo", BFD_RELOC_ARM_TLS_LDO32}, { "TLSLDO", BFD_RELOC_ARM_TLS_LDO32},
+ { "gottpoff",BFD_RELOC_ARM_TLS_IE32}, { "GOTTPOFF",BFD_RELOC_ARM_TLS_IE32},
+ { "tpoff", BFD_RELOC_ARM_TLS_LE32}, { "TPOFF", BFD_RELOC_ARM_TLS_LE32}
+};
+#endif
- /* In the few cases where we might be able to accept something else
- this error can be overridden. */
- inst.error = _(all_reg_maps[REG_TYPE_SN].expected);
+/* Table of all conditional affixes. 0xF is not defined as a condition code. */
+static const struct asm_cond conds[] =
+{
+ {"eq", 0x0},
+ {"ne", 0x1},
+ {"cs", 0x2}, {"hs", 0x2},
+ {"cc", 0x3}, {"ul", 0x3}, {"lo", 0x3},
+ {"mi", 0x4},
+ {"pl", 0x5},
+ {"vs", 0x6},
+ {"vc", 0x7},
+ {"hi", 0x8},
+ {"ls", 0x9},
+ {"ge", 0xa},
+ {"lt", 0xb},
+ {"gt", 0xc},
+ {"le", 0xd},
+ {"al", 0xe}
+};
- /* Restore the start point. */
- *str = start;
- return FAIL;
-}
+/* Table of ARM-format instructions. */
+
+/* Macros for gluing together operand strings. N.B. In all cases
+ other than OPS0, the trailing OP_stop comes from default
+ zero-initialization of the unspecified elements of the array. */
+#define OPS0() { OP_stop, }
+#define OPS1(a) { OP_##a, }
+#define OPS2(a,b) { OP_##a,OP_##b, }
+#define OPS3(a,b,c) { OP_##a,OP_##b,OP_##c, }
+#define OPS4(a,b,c,d) { OP_##a,OP_##b,OP_##c,OP_##d, }
+#define OPS5(a,b,c,d,e) { OP_##a,OP_##b,OP_##c,OP_##d,OP_##e, }
+#define OPS6(a,b,c,d,e,f) { OP_##a,OP_##b,OP_##c,OP_##d,OP_##e,OP_##f, }
+
+/* These macros abstract out the exact format of the mnemonic table and
+ save some repeated characters. */
+
+/* The normal sort of mnemonic; has a Thumb variant; takes a conditional suffix. */
+#define TxCE(mnem, op, top, nops, ops, ae, te) \
+ { #mnem, OPS##nops ops, OT_csuffix, 0x##op, top, ARM_VARIANT, \
+ do_##te ? THUMB_VARIANT : 0, do_##ae, do_##te }
+
+/* Two variants of the above - TCE for a numeric Thumb opcode, tCE for
+ a T_MNEM_xyz enumerator. */
+#define TCE(mnem, aop, top, nops, ops, ae, te) \
+ TxCE(mnem, aop, 0x##top, nops, ops, ae, te)
+#define tCE(mnem, aop, top, nops, ops, ae, te) \
+ TxCE(mnem, aop, T_MNEM_##top, nops, ops, ae, te)
+
+/* Second most common sort of mnemonic: has a Thumb variant, takes a conditional
+ infix after the third character. */
+#define TxC3(mnem, op, top, nops, ops, ae, te) \
+ { #mnem, OPS##nops ops, OT_cinfix3, 0x##op, top, ARM_VARIANT, \
+ do_##te ? THUMB_VARIANT : 0, do_##ae, do_##te }
+#define TC3(mnem, aop, top, nops, ops, ae, te) \
+ TxC3(mnem, aop, 0x##top, nops, ops, ae, te)
+#define tC3(mnem, aop, top, nops, ops, ae, te) \
+ TxC3(mnem, aop, T_MNEM_##top, nops, ops, ae, te)
+
+/* Mnemonic with a conditional infix in an unusual place. Each and every variant has to
+ appear in the condition table. */
+#define TxCM_(m1, m2, m3, op, top, nops, ops, ae, te) \
+ { #m1 #m2 #m3, OPS##nops ops, sizeof(#m2) == 1 ? OT_odd_infix_unc : OT_odd_infix_0 + sizeof(#m1) - 1, \
+ 0x##op, top, ARM_VARIANT, do_##te ? THUMB_VARIANT : 0, do_##ae, do_##te }
+
+#define TxCM(m1, m2, op, top, nops, ops, ae, te) \
+ TxCM_(m1, , m2, op, top, nops, ops, ae, te), \
+ TxCM_(m1, eq, m2, op, top, nops, ops, ae, te), \
+ TxCM_(m1, ne, m2, op, top, nops, ops, ae, te), \
+ TxCM_(m1, cs, m2, op, top, nops, ops, ae, te), \
+ TxCM_(m1, hs, m2, op, top, nops, ops, ae, te), \
+ TxCM_(m1, cc, m2, op, top, nops, ops, ae, te), \
+ TxCM_(m1, ul, m2, op, top, nops, ops, ae, te), \
+ TxCM_(m1, lo, m2, op, top, nops, ops, ae, te), \
+ TxCM_(m1, mi, m2, op, top, nops, ops, ae, te), \
+ TxCM_(m1, pl, m2, op, top, nops, ops, ae, te), \
+ TxCM_(m1, vs, m2, op, top, nops, ops, ae, te), \
+ TxCM_(m1, vc, m2, op, top, nops, ops, ae, te), \
+ TxCM_(m1, hi, m2, op, top, nops, ops, ae, te), \
+ TxCM_(m1, ls, m2, op, top, nops, ops, ae, te), \
+ TxCM_(m1, ge, m2, op, top, nops, ops, ae, te), \
+ TxCM_(m1, lt, m2, op, top, nops, ops, ae, te), \
+ TxCM_(m1, gt, m2, op, top, nops, ops, ae, te), \
+ TxCM_(m1, le, m2, op, top, nops, ops, ae, te), \
+ TxCM_(m1, al, m2, op, top, nops, ops, ae, te)
+
+#define TCM(m1,m2, aop, top, nops, ops, ae, te) \
+ TxCM(m1,m2, aop, 0x##top, nops, ops, ae, te)
+#define tCM(m1,m2, aop, top, nops, ops, ae, te) \
+ TxCM(m1,m2, aop, T_MNEM_##top, nops, ops, ae, te)
+
+/* Mnemonic that cannot be conditionalized. The ARM condition-code
+ field is still 0xE. */
+#define TUE(mnem, op, top, nops, ops, ae, te) \
+ { #mnem, OPS##nops ops, OT_unconditional, 0x##op, 0x##top, ARM_VARIANT, \
+ do_##te ? THUMB_VARIANT : 0, do_##ae, do_##te }
+
+/* Mnemonic that cannot be conditionalized, and bears 0xF in its ARM
+ condition code field. */
+#define TUF(mnem, op, top, nops, ops, ae, te) \
+ { #mnem, OPS##nops ops, OT_unconditionalF, 0x##op, 0x##top, ARM_VARIANT, \
+ do_##te ? THUMB_VARIANT : 0, do_##ae, do_##te }
+
+/* ARM-only variants of all the above. */
+#define CE(mnem, op, nops, ops, ae) TCE(mnem, op, 0, nops, ops, ae, 0)
+#define C3(mnem, op, nops, ops, ae) TC3(mnem, op, 0, nops, ops, ae, 0)
+#define CM(m1,m2, op, nops, ops, ae) TCM(m1,m2, op, 0, nops, ops, ae, 0)
+#define UE(mnem, op, nops, ops, ae) TUE(mnem, op, 0, nops, ops, ae, 0)
+#define UF(mnem, op, nops, ops, ae) TUF(mnem, op, 0, nops, ops, ae, 0)
+#define do_0 0
+
+/* Thumb-only, unconditional. */
+#define UT(mnem, op, nops, ops, te) TUE(mnem, 0, op, nops, ops, 0, te)
+
+/* ARM-only, takes either a suffix or a position-3 infix
+ (for an FPA corner case). */
+#define C3E(mnem, op, nops, ops, ae) \
+ { #mnem, OPS##nops ops, OT_csuf_or_in3, 0x##op, 0, ARM_VARIANT, 0, do_##ae, 0 }
-static int
-vfp_dp_reg_required_here (char ** str,
- enum vfp_dp_reg_pos pos)
+static const struct asm_opcode insns[] =
{
- int reg;
- char * start = *str;
+#define ARM_VARIANT ARM_EXT_V1 /* Core ARM Instructions. */
+#define THUMB_VARIANT ARM_EXT_V4T
+ tCE(and, 0000000, and, 3, (RR, oRR, SH), arit, t_arit3c),
+ tC3(ands, 0100000, ands, 3, (RR, oRR, SH), arit, t_arit3c),
+ tCE(eor, 0200000, eor, 3, (RR, oRR, SH), arit, t_arit3c),
+ tC3(eors, 0300000, eors, 3, (RR, oRR, SH), arit, t_arit3c),
+ tCE(sub, 0400000, sub, 3, (RR, oRR, SH), arit, t_add_sub),
+ tC3(subs, 0500000, subs, 3, (RR, oRR, SH), arit, t_add_sub),
+ tCE(add, 0800000, add, 3, (RR, oRR, SH), arit, t_add_sub),
+ tC3(adds, 0900000, adds, 3, (RR, oRR, SH), arit, t_add_sub),
+ tCE(adc, 0a00000, adc, 3, (RR, oRR, SH), arit, t_arit3c),
+ tC3(adcs, 0b00000, adcs, 3, (RR, oRR, SH), arit, t_arit3c),
+ tCE(sbc, 0c00000, sbc, 3, (RR, oRR, SH), arit, t_arit3),
+ tC3(sbcs, 0d00000, sbcs, 3, (RR, oRR, SH), arit, t_arit3),
+ tCE(orr, 1800000, orr, 3, (RR, oRR, SH), arit, t_arit3c),
+ tC3(orrs, 1900000, orrs, 3, (RR, oRR, SH), arit, t_arit3c),
+ tCE(bic, 1c00000, bic, 3, (RR, oRR, SH), arit, t_arit3),
+ tC3(bics, 1d00000, bics, 3, (RR, oRR, SH), arit, t_arit3),
+
+ /* The p-variants of tst/cmp/cmn/teq (below) are the pre-V6 mechanism
+ for setting PSR flag bits. They are obsolete in V6 and do not
+ have Thumb equivalents. */
+ tCE(tst, 1100000, tst, 2, (RR, SH), cmp, t_mvn_tst),
+ tC3(tsts, 1100000, tst, 2, (RR, SH), cmp, t_mvn_tst),
+ C3(tstp, 110f000, 2, (RR, SH), cmp),
+ tCE(cmp, 1500000, cmp, 2, (RR, SH), cmp, t_mov_cmp),
+ tC3(cmps, 1500000, cmp, 2, (RR, SH), cmp, t_mov_cmp),
+ C3(cmpp, 150f000, 2, (RR, SH), cmp),
+ tCE(cmn, 1700000, cmn, 2, (RR, SH), cmp, t_mvn_tst),
+ tC3(cmns, 1700000, cmn, 2, (RR, SH), cmp, t_mvn_tst),
+ C3(cmnp, 170f000, 2, (RR, SH), cmp),
+
+ tCE(mov, 1a00000, mov, 2, (RR, SH), mov, t_mov_cmp),
+ tC3(movs, 1b00000, movs, 2, (RR, SH), mov, t_mov_cmp),
+ tCE(mvn, 1e00000, mvn, 2, (RR, SH), mov, t_mvn_tst),
+ tC3(mvns, 1f00000, mvns, 2, (RR, SH), mov, t_mvn_tst),
+
+ tCE(ldr, 4100000, ldr, 2, (RR, ADDR), ldst, t_ldst),
+ tC3(ldrb, 4500000, ldrb, 2, (RR, ADDR), ldst, t_ldst),
+ tCE(str, 4000000, str, 2, (RR, ADDR), ldst, t_ldst),
+ tC3(strb, 4400000, strb, 2, (RR, ADDR), ldst, t_ldst),
+
+ tC3(stmia, 8800000, stmia, 2, (RRw, REGLST), ldmstm, t_ldmstm),
+ tC3(stmea, 8800000, stmia, 2, (RRw, REGLST), ldmstm, t_ldmstm),
+ tC3(ldmia, 8900000, ldmia, 2, (RRw, REGLST), ldmstm, t_ldmstm),
+ tC3(ldmfd, 8900000, ldmia, 2, (RRw, REGLST), ldmstm, t_ldmstm),
+
+ TCE(swi, f000000, df00, 1, (EXPi), swi, t_swi),
+#ifdef TE_WINCE
+ /* XXX This is the wrong place to do this. Think multi-arch. */
+ TCE(b, a000000, e7fe, 1, (EXPr), branch, t_branch),
+ TCE(bl, b000000, f7fffffe, 1, (EXPr), branch, t_branch23),
+#else
+ TCE(b, afffffe, e7fe, 1, (EXPr), branch, t_branch),
+ TCE(bl, bfffffe, f7fffffe, 1, (EXPr), branch, t_branch23),
+#endif
- if ((reg = arm_reg_parse (str, all_reg_maps[REG_TYPE_DN].htab)) != FAIL)
- {
- switch (pos)
- {
- case VFP_REG_Dd:
- inst.instruction |= reg << 12;
- break;
+ /* Pseudo ops. */
+ TCE(adr, 28f0000, 000f, 2, (RR, EXP), adr, t_adr),
+ C3(adrl, 28f0000, 2, (RR, EXP), adrl),
+ tCE(nop, 1a00000, nop, 1, (oI255c), nop, t_nop),
+
+ /* Thumb-compatibility pseudo ops. */
+ tCE(lsl, 1a00000, lsl, 3, (RR, oRR, SH), shift, t_shift),
+ tC3(lsls, 1b00000, lsls, 3, (RR, oRR, SH), shift, t_shift),
+ tCE(lsr, 1a00020, lsr, 3, (RR, oRR, SH), shift, t_shift),
+ tC3(lsrs, 1b00020, lsrs, 3, (RR, oRR, SH), shift, t_shift),
+ tCE(asr, 1a00040, asr, 3, (RR, oRR, SH), shift, t_shift),
+ tC3(asrs, 1b00040, asrs, 3, (RR, oRR, SH), shift, t_shift),
+ tCE(ror, 1a00060, ror, 3, (RR, oRR, SH), shift, t_shift),
+ tC3(rors, 1b00060, rors, 3, (RR, oRR, SH), shift, t_shift),
+ tCE(neg, 2600000, neg, 2, (RR, RR), rd_rn, t_neg),
+ tC3(negs, 2700000, negs, 2, (RR, RR), rd_rn, t_neg),
+ tCE(push, 92d0000, push, 1, (REGLST), push_pop, t_push_pop),
+ tCE(pop, 8bd0000, pop, 1, (REGLST), push_pop, t_push_pop),
+
+#undef THUMB_VARIANT
+#define THUMB_VARIANT ARM_EXT_V6
+ TCE(cpy, 1a00000, 4600, 2, (RR, RR), rd_rm, t_cpy),
+
+ /* V1 instructions with no Thumb analogue prior to V6T2. */
+#undef THUMB_VARIANT
+#define THUMB_VARIANT ARM_EXT_V6T2
+ TCE(rsb, 0600000, ebc00000, 3, (RR, oRR, SH), arit, t_rsb),
+ TC3(rsbs, 0700000, ebd00000, 3, (RR, oRR, SH), arit, t_rsb),
+ TCE(teq, 1300000, ea900f00, 2, (RR, SH), cmp, t_mvn_tst),
+ TC3(teqs, 1300000, ea900f00, 2, (RR, SH), cmp, t_mvn_tst),
+ C3(teqp, 130f000, 2, (RR, SH), cmp),
+
+ TC3(ldrt, 4300000, f8500e00, 2, (RR, ADDR), ldstt, t_ldstt),
+ TC3(ldrbt, 4700000, f8300e00, 2, (RR, ADDR), ldstt, t_ldstt),
+ TC3(strt, 4200000, f8400e00, 2, (RR, ADDR), ldstt, t_ldstt),
+ TC3(strbt, 4600000, f8200e00, 2, (RR, ADDR), ldstt, t_ldstt),
+
+ TC3(stmdb, 9000000, e9100000, 2, (RRw, REGLST), ldmstm, t_ldmstm),
+ TC3(stmfd, 9000000, e9100000, 2, (RRw, REGLST), ldmstm, t_ldmstm),
+
+ TC3(ldmdb, 9100000, e9000000, 2, (RRw, REGLST), ldmstm, t_ldmstm),
+ TC3(ldmea, 9100000, e9000000, 2, (RRw, REGLST), ldmstm, t_ldmstm),
+
+ /* V1 instructions with no Thumb analogue at all. */
+ CE(rsc, 0e00000, 3, (RR, oRR, SH), arit),
+ C3(rscs, 0f00000, 3, (RR, oRR, SH), arit),
+
+ C3(stmib, 9800000, 2, (RRw, REGLST), ldmstm),
+ C3(stmfa, 9800000, 2, (RRw, REGLST), ldmstm),
+ C3(stmda, 8000000, 2, (RRw, REGLST), ldmstm),
+ C3(stmed, 8000000, 2, (RRw, REGLST), ldmstm),
+ C3(ldmib, 9900000, 2, (RRw, REGLST), ldmstm),
+ C3(ldmed, 9900000, 2, (RRw, REGLST), ldmstm),
+ C3(ldmda, 8100000, 2, (RRw, REGLST), ldmstm),
+ C3(ldmfa, 8100000, 2, (RRw, REGLST), ldmstm),
+
+#undef ARM_VARIANT
+#define ARM_VARIANT ARM_EXT_V2 /* ARM 2 - multiplies. */
+#undef THUMB_VARIANT
+#define THUMB_VARIANT ARM_EXT_V4T
+ tCE(mul, 0000090, mul, 3, (RRnpc, RRnpc, oRR), mul, t_mul),
+ tC3(muls, 0100090, muls, 3, (RRnpc, RRnpc, oRR), mul, t_mul),
+
+#undef THUMB_VARIANT
+#define THUMB_VARIANT ARM_EXT_V6T2
+ TCE(mla, 0200090, fb000000, 4, (RRnpc, RRnpc, RRnpc, RRnpc), mlas, t_mla),
+ C3(mlas, 0300090, 4, (RRnpc, RRnpc, RRnpc, RRnpc), mlas),
+
+ /* Generic coprocessor instructions. */
+ TCE(cdp, e000000, ee000000, 6, (RCP, I15b, RCN, RCN, RCN, oI7b), cdp, cdp),
+ TCE(ldc, c100000, ec100000, 3, (RCP, RCN, ADDR), lstc, lstc),
+ TC3(ldcl, c500000, ec500000, 3, (RCP, RCN, ADDR), lstc, lstc),
+ TCE(stc, c000000, ec000000, 3, (RCP, RCN, ADDR), lstc, lstc),
+ TC3(stcl, c400000, ec400000, 3, (RCP, RCN, ADDR), lstc, lstc),
+ TCE(mcr, e000010, ee000010, 6, (RCP, I7b, RR, RCN, RCN, oI7b), co_reg, co_reg),
+ TCE(mrc, e100010, ee100010, 6, (RCP, I7b, RR, RCN, RCN, oI7b), co_reg, co_reg),
+
+#undef ARM_VARIANT
+#define ARM_VARIANT ARM_EXT_V2S /* ARM 3 - swp instructions. */
+ CE(swp, 1000090, 3, (RRnpc, RRnpc, RRnpcb), rd_rm_rn),
+ C3(swpb, 1400090, 3, (RRnpc, RRnpc, RRnpcb), rd_rm_rn),
+
+#undef ARM_VARIANT
+#define ARM_VARIANT ARM_EXT_V3 /* ARM 6 Status register instructions. */
+ TCE(mrs, 10f0000, f3ef8000, 2, (RR, PSR), mrs, t_mrs),
+ TCE(msr, 120f000, f3808000, 2, (PSR, RR_EXi), msr, t_msr),
+
+#undef ARM_VARIANT
+#define ARM_VARIANT ARM_EXT_V3M /* ARM 7M long multiplies. */
+ TCE(smull, 0c00090, fb800000, 4, (RRnpc, RRnpc, RRnpc, RRnpc), mull, t_mull),
+ CM(smull,s, 0d00090, 4, (RRnpc, RRnpc, RRnpc, RRnpc), mull),
+ TCE(umull, 0800090, fba00000, 4, (RRnpc, RRnpc, RRnpc, RRnpc), mull, t_mull),
+ CM(umull,s, 0900090, 4, (RRnpc, RRnpc, RRnpc, RRnpc), mull),
+ TCE(smlal, 0e00090, fbc00000, 4, (RRnpc, RRnpc, RRnpc, RRnpc), mull, t_mull),
+ CM(smlal,s, 0f00090, 4, (RRnpc, RRnpc, RRnpc, RRnpc), mull),
+ TCE(umlal, 0a00090, fbe00000, 4, (RRnpc, RRnpc, RRnpc, RRnpc), mull, t_mull),
+ CM(umlal,s, 0b00090, 4, (RRnpc, RRnpc, RRnpc, RRnpc), mull),
+
+#undef ARM_VARIANT
+#define ARM_VARIANT ARM_EXT_V4 /* ARM Architecture 4. */
+#undef THUMB_VARIANT
+#define THUMB_VARIANT ARM_EXT_V4T
+ tC3(ldrh, 01000b0, ldrh, 2, (RR, ADDR), ldstv4, t_ldst),
+ tC3(strh, 00000b0, strh, 2, (RR, ADDR), ldstv4, t_ldst),
+ tC3(ldrsh, 01000f0, ldrsh, 2, (RR, ADDR), ldstv4, t_ldst),
+ tC3(ldrsb, 01000d0, ldrsb, 2, (RR, ADDR), ldstv4, t_ldst),
+ tCM(ld,sh, 01000f0, ldrsh, 2, (RR, ADDR), ldstv4, t_ldst),
+ tCM(ld,sb, 01000d0, ldrsb, 2, (RR, ADDR), ldstv4, t_ldst),
+
+#undef ARM_VARIANT
+#define ARM_VARIANT ARM_EXT_V4T|ARM_EXT_V5
+ /* ARM Architecture 4T. */
+ /* Note: bx (and blx) are required on V5, even if the processor does
+ not support Thumb. */
+ TCE(bx, 12fff10, 4700, 1, (RR), bx, t_bx),
+
+#undef ARM_VARIANT
+#define ARM_VARIANT ARM_EXT_V5 /* ARM Architecture 5T. */
+#undef THUMB_VARIANT
+#define THUMB_VARIANT ARM_EXT_V5T
+ /* Note: blx has 2 variants; the .value coded here is for
+ BLX(2). Only this variant has conditional execution. */
+ TCE(blx, 12fff30, 4780, 1, (RR_EXr), blx, t_blx),
+ TUE(bkpt, 1200070, be00, 1, (oIffffb), bkpt, t_bkpt),
+
+#undef THUMB_VARIANT
+#define THUMB_VARIANT ARM_EXT_V6T2
+ TCE(clz, 16f0f10, fab0f080, 2, (RRnpc, RRnpc), rd_rm, t_clz),
+ TUF(ldc2, c100000, fc100000, 3, (RCP, RCN, ADDR), lstc, lstc),
+ TUF(ldc2l, c500000, fc500000, 3, (RCP, RCN, ADDR), lstc, lstc),
+ TUF(stc2, c000000, fc000000, 3, (RCP, RCN, ADDR), lstc, lstc),
+ TUF(stc2l, c400000, fc400000, 3, (RCP, RCN, ADDR), lstc, lstc),
+ TUF(cdp2, e000000, fe000000, 6, (RCP, I15b, RCN, RCN, RCN, oI7b), cdp, cdp),
+ TUF(mcr2, e000010, fe000010, 6, (RCP, I7b, RR, RCN, RCN, oI7b), co_reg, co_reg),
+ TUF(mrc2, e100010, fe100010, 6, (RCP, I7b, RR, RCN, RCN, oI7b), co_reg, co_reg),
+
+#undef ARM_VARIANT
+#define ARM_VARIANT ARM_EXT_V5ExP /* ARM Architecture 5TExP. */
+ TCE(smlabb, 1000080, fb100000, 4, (RRnpc, RRnpc, RRnpc, RRnpc), smla, t_mla),
+ TCE(smlatb, 10000a0, fb100020, 4, (RRnpc, RRnpc, RRnpc, RRnpc), smla, t_mla),
+ TCE(smlabt, 10000c0, fb100010, 4, (RRnpc, RRnpc, RRnpc, RRnpc), smla, t_mla),
+ TCE(smlatt, 10000e0, fb100030, 4, (RRnpc, RRnpc, RRnpc, RRnpc), smla, t_mla),
+
+ TCE(smlawb, 1200080, fb300000, 4, (RRnpc, RRnpc, RRnpc, RRnpc), smla, t_mla),
+ TCE(smlawt, 12000c0, fb300010, 4, (RRnpc, RRnpc, RRnpc, RRnpc), smla, t_mla),
+
+ TCE(smlalbb, 1400080, fbc00080, 4, (RRnpc, RRnpc, RRnpc, RRnpc), smlal, t_mlal),
+ TCE(smlaltb, 14000a0, fbc000a0, 4, (RRnpc, RRnpc, RRnpc, RRnpc), smlal, t_mlal),
+ TCE(smlalbt, 14000c0, fbc00090, 4, (RRnpc, RRnpc, RRnpc, RRnpc), smlal, t_mlal),
+ TCE(smlaltt, 14000e0, fbc000b0, 4, (RRnpc, RRnpc, RRnpc, RRnpc), smlal, t_mlal),
+
+ TCE(smulbb, 1600080, fb10f000, 3, (RRnpc, RRnpc, RRnpc), smul, t_simd),
+ TCE(smultb, 16000a0, fb10f020, 3, (RRnpc, RRnpc, RRnpc), smul, t_simd),
+ TCE(smulbt, 16000c0, fb10f010, 3, (RRnpc, RRnpc, RRnpc), smul, t_simd),
+ TCE(smultt, 16000e0, fb10f030, 3, (RRnpc, RRnpc, RRnpc), smul, t_simd),
+
+ TCE(smulwb, 12000a0, fb30f000, 3, (RRnpc, RRnpc, RRnpc), smul, t_simd),
+ TCE(smulwt, 12000e0, fb30f010, 3, (RRnpc, RRnpc, RRnpc), smul, t_simd),
+
+ TCE(qadd, 1000050, fa80f080, 3, (RRnpc, RRnpc, RRnpc), rd_rm_rn, rd_rm_rn),
+ TCE(qdadd, 1400050, fa80f090, 3, (RRnpc, RRnpc, RRnpc), rd_rm_rn, rd_rm_rn),
+ TCE(qsub, 1200050, fa80f0a0, 3, (RRnpc, RRnpc, RRnpc), rd_rm_rn, rd_rm_rn),
+ TCE(qdsub, 1600050, fa80f0b0, 3, (RRnpc, RRnpc, RRnpc), rd_rm_rn, rd_rm_rn),
+
+#undef ARM_VARIANT
+#define ARM_VARIANT ARM_EXT_V5E /* ARM Architecture 5TE. */
+ TUF(pld, 450f000, f810f000, 1, (ADDR), pld, t_pld),
+ TC3(ldrd, 00000d0, e9500000, 3, (RRnpc, oRRnpc, ADDR), ldrd, t_ldstd),
+ TC3(strd, 00000f0, e9400000, 3, (RRnpc, oRRnpc, ADDR), ldrd, t_ldstd),
+
+ TCE(mcrr, c400000, ec400000, 5, (RCP, I15b, RRnpc, RRnpc, RCN), co_reg2c, co_reg2c),
+ TCE(mrrc, c500000, ec500000, 5, (RCP, I15b, RRnpc, RRnpc, RCN), co_reg2c, co_reg2c),
+
+#undef ARM_VARIANT
+#define ARM_VARIANT ARM_EXT_V5J /* ARM Architecture 5TEJ. */
+ TCE(bxj, 12fff20, f3c08f00, 1, (RR), bxj, t_bxj),
+
+#undef ARM_VARIANT
+#define ARM_VARIANT ARM_EXT_V6 /* ARM V6. */
+#undef THUMB_VARIANT
+#define THUMB_VARIANT ARM_EXT_V6
+ TUF(cpsie, 1080000, b660, 2, (CPSF, oI31b), cpsi, t_cpsi),
+ TUF(cpsid, 10c0000, b670, 2, (CPSF, oI31b), cpsi, t_cpsi),
+ tCE(rev, 6bf0f30, rev, 2, (RRnpc, RRnpc), rd_rm, t_rev),
+ tCE(rev16, 6bf0fb0, rev16, 2, (RRnpc, RRnpc), rd_rm, t_rev),
+ tCE(revsh, 6ff0fb0, revsh, 2, (RRnpc, RRnpc), rd_rm, t_rev),
+ tCE(sxth, 6bf0070, sxth, 3, (RRnpc, RRnpc, oROR), sxth, t_sxth),
+ tCE(uxth, 6ff0070, uxth, 3, (RRnpc, RRnpc, oROR), sxth, t_sxth),
+ tCE(sxtb, 6af0070, sxtb, 3, (RRnpc, RRnpc, oROR), sxth, t_sxth),
+ tCE(uxtb, 6ef0070, uxtb, 3, (RRnpc, RRnpc, oROR), sxth, t_sxth),
+ TUF(setend, 1010000, b650, 1, (ENDI), setend, t_setend),
+
+#undef THUMB_VARIANT
+#define THUMB_VARIANT ARM_EXT_V6T2
+ TUF(cps, 1020000, f3af8100, 1, (I31b), imm0, imm0),
+ TCE(ldrex, 1900f9f, e8500f00, 2, (RRnpc, ADDR), ldrex, t_ldrex),
+ TUF(mcrr2, c400000, fc400000, 5, (RCP, I15b, RRnpc, RRnpc, RCN), co_reg2c, co_reg2c),
+ TUF(mrrc2, c500000, fc500000, 5, (RCP, I15b, RRnpc, RRnpc, RCN), co_reg2c, co_reg2c),
+ TCE(pkhbt, 6800010, eac00000, 4, (RRnpc, RRnpc, RRnpc, oSHll), pkhbt, t_pkhbt),
+ TCE(pkhtb, 6800050, eac00020, 4, (RRnpc, RRnpc, RRnpc, oSHar), pkhtb, t_pkhtb),
+ TCE(qadd16, 6200f10, fa90f010, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
+ TCE(qadd8, 6200f90, fa80f010, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
+ TCE(qaddsubx, 6200f30, faa0f010, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
+ TCE(qsub16, 6200f70, fad0f010, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
+ TCE(qsub8, 6200ff0, fac0f010, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
+ TCE(qsubaddx, 6200f50, fae0f010, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
+ TCE(sadd16, 6100f10, fa90f000, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
+ TCE(sadd8, 6100f90, fa80f000, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
+ TCE(saddsubx, 6100f30, faa0f000, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
+ TCE(shadd16, 6300f10, fa90f020, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
+ TCE(shadd8, 6300f90, fa80f020, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
+ TCE(shaddsubx, 6300f30, faa0f020, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
+ TCE(shsub16, 6300f70, fad0f020, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
+ TCE(shsub8, 6300ff0, fac0f020, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
+ TCE(shsubaddx, 6300f50, fae0f020, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
+ TCE(ssub16, 6100f70, fad0f000, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
+ TCE(ssub8, 6100ff0, fac0f000, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
+ TCE(ssubaddx, 6100f50, fae0f000, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
+ TCE(uadd16, 6500f10, fa90f040, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
+ TCE(uadd8, 6500f90, fa80f040, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
+ TCE(uaddsubx, 6500f30, faa0f040, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
+ TCE(uhadd16, 6700f10, fa90f060, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
+ TCE(uhadd8, 6700f90, fa80f060, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
+ TCE(uhaddsubx, 6700f30, faa0f060, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
+ TCE(uhsub16, 6700f70, fad0f060, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
+ TCE(uhsub8, 6700ff0, fac0f060, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
+ TCE(uhsubaddx, 6700f50, fae0f060, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
+ TCE(uqadd16, 6600f10, fa90f050, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
+ TCE(uqadd8, 6600f90, fa80f050, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
+ TCE(uqaddsubx, 6600f30, faa0f050, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
+ TCE(uqsub16, 6600f70, fad0f050, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
+ TCE(uqsub8, 6600ff0, fac0f050, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
+ TCE(uqsubaddx, 6600f50, fae0f050, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
+ TCE(usub16, 6500f70, fad0f040, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
+ TCE(usub8, 6500ff0, fac0f040, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
+ TCE(usubaddx, 6500f50, fae0f040, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
+ TUF(rfeia, 8900a00, e990c000, 1, (RRw), rfe, rfe),
+ UF(rfeib, 9900a00, 1, (RRw), rfe),
+ UF(rfeda, 8100a00, 1, (RRw), rfe),
+ TUF(rfedb, 9100a00, e810c000, 1, (RRw), rfe, rfe),
+ TUF(rfefd, 8900a00, e990c000, 1, (RRw), rfe, rfe),
+ UF(rfefa, 9900a00, 1, (RRw), rfe),
+ UF(rfeea, 8100a00, 1, (RRw), rfe),
+ TUF(rfeed, 9100a00, e810c000, 1, (RRw), rfe, rfe),
+ TCE(sxtah, 6b00070, fa00f080, 4, (RRnpc, RRnpc, RRnpc, oROR), sxtah, t_sxtah),
+ TCE(sxtab16, 6800070, fa20f080, 4, (RRnpc, RRnpc, RRnpc, oROR), sxtah, t_sxtah),
+ TCE(sxtab, 6a00070, fa40f080, 4, (RRnpc, RRnpc, RRnpc, oROR), sxtah, t_sxtah),
+ TCE(sxtb16, 68f0070, fa2ff080, 3, (RRnpc, RRnpc, oROR), sxth, t_sxth),
+ TCE(uxtah, 6f00070, fa10f080, 4, (RRnpc, RRnpc, RRnpc, oROR), sxtah, t_sxtah),
+ TCE(uxtab16, 6c00070, fa30f080, 4, (RRnpc, RRnpc, RRnpc, oROR), sxtah, t_sxtah),
+ TCE(uxtab, 6e00070, fa50f080, 4, (RRnpc, RRnpc, RRnpc, oROR), sxtah, t_sxtah),
+ TCE(uxtb16, 6cf0070, fa3ff080, 3, (RRnpc, RRnpc, oROR), sxth, t_sxth),
+ TCE(sel, 68000b0, faa0f080, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
+ TCE(smlad, 7000010, fb200000, 4, (RRnpc, RRnpc, RRnpc, RRnpc),smla, t_mla),
+ TCE(smladx, 7000030, fb200010, 4, (RRnpc, RRnpc, RRnpc, RRnpc),smla, t_mla),
+ TCE(smlald, 7400010, fbc000c0, 4, (RRnpc, RRnpc, RRnpc, RRnpc),smlal,t_mlal),
+ TCE(smlaldx, 7400030, fbc000d0, 4, (RRnpc, RRnpc, RRnpc, RRnpc),smlal,t_mlal),
+ TCE(smlsd, 7000050, fb400000, 4, (RRnpc, RRnpc, RRnpc, RRnpc),smla, t_mla),
+ TCE(smlsdx, 7000070, fb400010, 4, (RRnpc, RRnpc, RRnpc, RRnpc),smla, t_mla),
+ TCE(smlsld, 7400050, fbd000c0, 4, (RRnpc, RRnpc, RRnpc, RRnpc),smlal,t_mlal),
+ TCE(smlsldx, 7400070, fbd000d0, 4, (RRnpc, RRnpc, RRnpc, RRnpc),smlal,t_mlal),
+ TCE(smmla, 7500010, fb500000, 4, (RRnpc, RRnpc, RRnpc, RRnpc),smla, t_mla),
+ TCE(smmlar, 7500030, fb500010, 4, (RRnpc, RRnpc, RRnpc, RRnpc),smla, t_mla),
+ TCE(smmls, 75000d0, fb600000, 4, (RRnpc, RRnpc, RRnpc, RRnpc),smla, t_mla),
+ TCE(smmlsr, 75000f0, fb600010, 4, (RRnpc, RRnpc, RRnpc, RRnpc),smla, t_mla),
+ TCE(smmul, 750f010, fb50f000, 3, (RRnpc, RRnpc, RRnpc), smul, t_simd),
+ TCE(smmulr, 750f030, fb50f010, 3, (RRnpc, RRnpc, RRnpc), smul, t_simd),
+ TCE(smuad, 700f010, fb20f000, 3, (RRnpc, RRnpc, RRnpc), smul, t_simd),
+ TCE(smuadx, 700f030, fb20f010, 3, (RRnpc, RRnpc, RRnpc), smul, t_simd),
+ TCE(smusd, 700f050, fb40f000, 3, (RRnpc, RRnpc, RRnpc), smul, t_simd),
+ TCE(smusdx, 700f070, fb40f010, 3, (RRnpc, RRnpc, RRnpc), smul, t_simd),
+ TUF(srsia, 8cd0500, e980c000, 1, (I31w), srs, srs),
+ UF(srsib, 9cd0500, 1, (I31w), srs),
+ UF(srsda, 84d0500, 1, (I31w), srs),
+ TUF(srsdb, 94d0500, e800c000, 1, (I31w), srs, srs),
+ TCE(ssat, 6a00010, f3000000, 4, (RRnpc, I32, RRnpc, oSHllar),ssat, t_ssat),
+ TCE(ssat16, 6a00f30, f3200000, 3, (RRnpc, I16, RRnpc), ssat16, t_ssat16),
+ TCE(strex, 1800f90, e8400000, 3, (RRnpc, RRnpc, ADDR), strex, t_strex),
+ TCE(umaal, 0400090, fbe00060, 4, (RRnpc, RRnpc, RRnpc, RRnpc),smlal, t_mlal),
+ TCE(usad8, 780f010, fb70f000, 3, (RRnpc, RRnpc, RRnpc), smul, t_simd),
+ TCE(usada8, 7800010, fb700000, 4, (RRnpc, RRnpc, RRnpc, RRnpc),smla, t_mla),
+ TCE(usat, 6e00010, f3800000, 4, (RRnpc, I31, RRnpc, oSHllar),usat, t_usat),
+ TCE(usat16, 6e00f30, f3a00000, 3, (RRnpc, I15, RRnpc), usat16, t_usat16),
+
+#undef ARM_VARIANT
+#define ARM_VARIANT ARM_EXT_V6K
+#undef THUMB_VARIANT
+#define THUMB_VARIANT ARM_EXT_V6K
+ tCE(yield, 320f001, yield, 0, (), noargs, t_hint),
+ tCE(wfe, 320f002, wfe, 0, (), noargs, t_hint),
+ tCE(wfi, 320f003, wfi, 0, (), noargs, t_hint),
+ tCE(sev, 320f004, sev, 0, (), noargs, t_hint),
+
+#undef THUMB_VARIANT
+#define THUMB_VARIANT ARM_EXT_V6T2
+ TCE(ldrexb, 1d00f9f, e8d00f4f, 2, (RRnpc, RRnpcb), rd_rn, rd_rn),
+ TCE(ldrexh, 1f00f9f, e8d00f5f, 2, (RRnpc, RRnpcb), rd_rn, rd_rn),
+ TCE(ldrexd, 1b00f9f, e8d0007f, 3, (RRnpc, oRRnpc, RRnpcb), ldrexd, t_ldrexd),
+ TCE(strexb, 1c00f90, e8c00f40, 3, (RRnpc, RRnpc, ADDR), strex, rm_rd_rn),
+ TCE(strexh, 1e00f90, e8c00f50, 3, (RRnpc, RRnpc, ADDR), strex, rm_rd_rn),
+ TCE(strexd, 1a00f90, e8c00070, 4, (RRnpc, RRnpc, oRRnpc, RRnpcb), strexd, t_strexd),
+ TUF(clrex, 57ff01f, f3bf8f2f, 0, (), noargs, noargs),
+
+#undef ARM_VARIANT
+#define ARM_VARIANT ARM_EXT_V6Z
+ TCE(smi, 1600070, f7f08000, 1, (EXPi), smi, t_smi),
+
+#undef ARM_VARIANT
+#define ARM_VARIANT ARM_EXT_V6T2
+ TCE(bfc, 7c0001f, f36f0000, 3, (RRnpc, I31, I32), bfc, t_bfc),
+ TCE(bfi, 7c00010, f3600000, 4, (RRnpc, RRnpc_I0, I31, I32), bfi, t_bfi),
+ TCE(sbfx, 7a00050, f3400000, 4, (RR, RR, I31, I32), bfx, t_bfx),
+ TCE(ubfx, 7e00050, f3c00000, 4, (RR, RR, I31, I32), bfx, t_bfx),
+
+ TCE(mls, 0600090, fb000010, 4, (RRnpc, RRnpc, RRnpc, RRnpc), mlas, t_mla),
+ TCE(movw, 3000000, f2400000, 2, (RRnpc, Iffff), mov16, t_mov16),
+ TCE(movt, 3400000, f2c00000, 2, (RRnpc, Iffff), mov16, t_mov16),
+ TCE(rbit, 3ff0f30, fa90f0a0, 2, (RR, RR), rd_rm, t_rbit),
+
+ TC3(ldrht, 03000b0, f8300e00, 2, (RR, ADDR), ldsttv4, t_ldstt),
+ TC3(ldrsht, 03000f0, f9300e00, 2, (RR, ADDR), ldsttv4, t_ldstt),
+ TC3(ldrsbt, 03000d0, f9100e00, 2, (RR, ADDR), ldsttv4, t_ldstt),
+ TC3(strht, 02000b0, f8200e00, 2, (RR, ADDR), ldsttv4, t_ldstt),
+
+ UT(cbnz, b900, 2, (RR, EXP), t_czb),
+ UT(cbz, b100, 2, (RR, EXP), t_czb),
+ /* ARM does not really have an IT instruction. */
+ TUE(it, 0, bf08, 1, (COND), it, t_it),
+ TUE(itt, 0, bf0c, 1, (COND), it, t_it),
+ TUE(ite, 0, bf04, 1, (COND), it, t_it),
+ TUE(ittt, 0, bf0e, 1, (COND), it, t_it),
+ TUE(itet, 0, bf06, 1, (COND), it, t_it),
+ TUE(itte, 0, bf0a, 1, (COND), it, t_it),
+ TUE(itee, 0, bf02, 1, (COND), it, t_it),
+ TUE(itttt, 0, bf0f, 1, (COND), it, t_it),
+ TUE(itett, 0, bf07, 1, (COND), it, t_it),
+ TUE(ittet, 0, bf0b, 1, (COND), it, t_it),
+ TUE(iteet, 0, bf03, 1, (COND), it, t_it),
+ TUE(ittte, 0, bf0d, 1, (COND), it, t_it),
+ TUE(itete, 0, bf05, 1, (COND), it, t_it),
+ TUE(ittee, 0, bf09, 1, (COND), it, t_it),
+ TUE(iteee, 0, bf01, 1, (COND), it, t_it),
+
+#undef ARM_VARIANT
+#define ARM_VARIANT FPU_FPA_EXT_V1 /* Core FPA instruction set (V1). */
+ CE(wfs, e200110, 1, (RR), rd),
+ CE(rfs, e300110, 1, (RR), rd),
+ CE(wfc, e400110, 1, (RR), rd),
+ CE(rfc, e500110, 1, (RR), rd),
+
+ C3(ldfs, c100100, 2, (RF, ADDR), rd_cpaddr),
+ C3(ldfd, c108100, 2, (RF, ADDR), rd_cpaddr),
+ C3(ldfe, c500100, 2, (RF, ADDR), rd_cpaddr),
+ C3(ldfp, c508100, 2, (RF, ADDR), rd_cpaddr),
+
+ C3(stfs, c000100, 2, (RF, ADDR), rd_cpaddr),
+ C3(stfd, c008100, 2, (RF, ADDR), rd_cpaddr),
+ C3(stfe, c400100, 2, (RF, ADDR), rd_cpaddr),
+ C3(stfp, c408100, 2, (RF, ADDR), rd_cpaddr),
+
+ C3(mvfs, e008100, 2, (RF, RF_IF), rd_rm),
+ C3(mvfsp, e008120, 2, (RF, RF_IF), rd_rm),
+ C3(mvfsm, e008140, 2, (RF, RF_IF), rd_rm),
+ C3(mvfsz, e008160, 2, (RF, RF_IF), rd_rm),
+ C3(mvfd, e008180, 2, (RF, RF_IF), rd_rm),
+ C3(mvfdp, e0081a0, 2, (RF, RF_IF), rd_rm),
+ C3(mvfdm, e0081c0, 2, (RF, RF_IF), rd_rm),
+ C3(mvfdz, e0081e0, 2, (RF, RF_IF), rd_rm),
+ C3(mvfe, e088100, 2, (RF, RF_IF), rd_rm),
+ C3(mvfep, e088120, 2, (RF, RF_IF), rd_rm),
+ C3(mvfem, e088140, 2, (RF, RF_IF), rd_rm),
+ C3(mvfez, e088160, 2, (RF, RF_IF), rd_rm),
+
+ C3(mnfs, e108100, 2, (RF, RF_IF), rd_rm),
+ C3(mnfsp, e108120, 2, (RF, RF_IF), rd_rm),
+ C3(mnfsm, e108140, 2, (RF, RF_IF), rd_rm),
+ C3(mnfsz, e108160, 2, (RF, RF_IF), rd_rm),
+ C3(mnfd, e108180, 2, (RF, RF_IF), rd_rm),
+ C3(mnfdp, e1081a0, 2, (RF, RF_IF), rd_rm),
+ C3(mnfdm, e1081c0, 2, (RF, RF_IF), rd_rm),
+ C3(mnfdz, e1081e0, 2, (RF, RF_IF), rd_rm),
+ C3(mnfe, e188100, 2, (RF, RF_IF), rd_rm),
+ C3(mnfep, e188120, 2, (RF, RF_IF), rd_rm),
+ C3(mnfem, e188140, 2, (RF, RF_IF), rd_rm),
+ C3(mnfez, e188160, 2, (RF, RF_IF), rd_rm),
+
+ C3(abss, e208100, 2, (RF, RF_IF), rd_rm),
+ C3(abssp, e208120, 2, (RF, RF_IF), rd_rm),
+ C3(abssm, e208140, 2, (RF, RF_IF), rd_rm),
+ C3(abssz, e208160, 2, (RF, RF_IF), rd_rm),
+ C3(absd, e208180, 2, (RF, RF_IF), rd_rm),
+ C3(absdp, e2081a0, 2, (RF, RF_IF), rd_rm),
+ C3(absdm, e2081c0, 2, (RF, RF_IF), rd_rm),
+ C3(absdz, e2081e0, 2, (RF, RF_IF), rd_rm),
+ C3(abse, e288100, 2, (RF, RF_IF), rd_rm),
+ C3(absep, e288120, 2, (RF, RF_IF), rd_rm),
+ C3(absem, e288140, 2, (RF, RF_IF), rd_rm),
+ C3(absez, e288160, 2, (RF, RF_IF), rd_rm),
+
+ C3(rnds, e308100, 2, (RF, RF_IF), rd_rm),
+ C3(rndsp, e308120, 2, (RF, RF_IF), rd_rm),
+ C3(rndsm, e308140, 2, (RF, RF_IF), rd_rm),
+ C3(rndsz, e308160, 2, (RF, RF_IF), rd_rm),
+ C3(rndd, e308180, 2, (RF, RF_IF), rd_rm),
+ C3(rnddp, e3081a0, 2, (RF, RF_IF), rd_rm),
+ C3(rnddm, e3081c0, 2, (RF, RF_IF), rd_rm),
+ C3(rnddz, e3081e0, 2, (RF, RF_IF), rd_rm),
+ C3(rnde, e388100, 2, (RF, RF_IF), rd_rm),
+ C3(rndep, e388120, 2, (RF, RF_IF), rd_rm),
+ C3(rndem, e388140, 2, (RF, RF_IF), rd_rm),
+ C3(rndez, e388160, 2, (RF, RF_IF), rd_rm),
+
+ C3(sqts, e408100, 2, (RF, RF_IF), rd_rm),
+ C3(sqtsp, e408120, 2, (RF, RF_IF), rd_rm),
+ C3(sqtsm, e408140, 2, (RF, RF_IF), rd_rm),
+ C3(sqtsz, e408160, 2, (RF, RF_IF), rd_rm),
+ C3(sqtd, e408180, 2, (RF, RF_IF), rd_rm),
+ C3(sqtdp, e4081a0, 2, (RF, RF_IF), rd_rm),
+ C3(sqtdm, e4081c0, 2, (RF, RF_IF), rd_rm),
+ C3(sqtdz, e4081e0, 2, (RF, RF_IF), rd_rm),
+ C3(sqte, e488100, 2, (RF, RF_IF), rd_rm),
+ C3(sqtep, e488120, 2, (RF, RF_IF), rd_rm),
+ C3(sqtem, e488140, 2, (RF, RF_IF), rd_rm),
+ C3(sqtez, e488160, 2, (RF, RF_IF), rd_rm),
+
+ C3(logs, e508100, 2, (RF, RF_IF), rd_rm),
+ C3(logsp, e508120, 2, (RF, RF_IF), rd_rm),
+ C3(logsm, e508140, 2, (RF, RF_IF), rd_rm),
+ C3(logsz, e508160, 2, (RF, RF_IF), rd_rm),
+ C3(logd, e508180, 2, (RF, RF_IF), rd_rm),
+ C3(logdp, e5081a0, 2, (RF, RF_IF), rd_rm),
+ C3(logdm, e5081c0, 2, (RF, RF_IF), rd_rm),
+ C3(logdz, e5081e0, 2, (RF, RF_IF), rd_rm),
+ C3(loge, e588100, 2, (RF, RF_IF), rd_rm),
+ C3(logep, e588120, 2, (RF, RF_IF), rd_rm),
+ C3(logem, e588140, 2, (RF, RF_IF), rd_rm),
+ C3(logez, e588160, 2, (RF, RF_IF), rd_rm),
+
+ C3(lgns, e608100, 2, (RF, RF_IF), rd_rm),
+ C3(lgnsp, e608120, 2, (RF, RF_IF), rd_rm),
+ C3(lgnsm, e608140, 2, (RF, RF_IF), rd_rm),
+ C3(lgnsz, e608160, 2, (RF, RF_IF), rd_rm),
+ C3(lgnd, e608180, 2, (RF, RF_IF), rd_rm),
+ C3(lgndp, e6081a0, 2, (RF, RF_IF), rd_rm),
+ C3(lgndm, e6081c0, 2, (RF, RF_IF), rd_rm),
+ C3(lgndz, e6081e0, 2, (RF, RF_IF), rd_rm),
+ C3(lgne, e688100, 2, (RF, RF_IF), rd_rm),
+ C3(lgnep, e688120, 2, (RF, RF_IF), rd_rm),
+ C3(lgnem, e688140, 2, (RF, RF_IF), rd_rm),
+ C3(lgnez, e688160, 2, (RF, RF_IF), rd_rm),
+
+ C3(exps, e708100, 2, (RF, RF_IF), rd_rm),
+ C3(expsp, e708120, 2, (RF, RF_IF), rd_rm),
+ C3(expsm, e708140, 2, (RF, RF_IF), rd_rm),
+ C3(expsz, e708160, 2, (RF, RF_IF), rd_rm),
+ C3(expd, e708180, 2, (RF, RF_IF), rd_rm),
+ C3(expdp, e7081a0, 2, (RF, RF_IF), rd_rm),
+ C3(expdm, e7081c0, 2, (RF, RF_IF), rd_rm),
+ C3(expdz, e7081e0, 2, (RF, RF_IF), rd_rm),
+ C3(expe, e788100, 2, (RF, RF_IF), rd_rm),
+ C3(expep, e788120, 2, (RF, RF_IF), rd_rm),
+ C3(expem, e788140, 2, (RF, RF_IF), rd_rm),
+ C3(expdz, e788160, 2, (RF, RF_IF), rd_rm),
+
+ C3(sins, e808100, 2, (RF, RF_IF), rd_rm),
+ C3(sinsp, e808120, 2, (RF, RF_IF), rd_rm),
+ C3(sinsm, e808140, 2, (RF, RF_IF), rd_rm),
+ C3(sinsz, e808160, 2, (RF, RF_IF), rd_rm),
+ C3(sind, e808180, 2, (RF, RF_IF), rd_rm),
+ C3(sindp, e8081a0, 2, (RF, RF_IF), rd_rm),
+ C3(sindm, e8081c0, 2, (RF, RF_IF), rd_rm),
+ C3(sindz, e8081e0, 2, (RF, RF_IF), rd_rm),
+ C3(sine, e888100, 2, (RF, RF_IF), rd_rm),
+ C3(sinep, e888120, 2, (RF, RF_IF), rd_rm),
+ C3(sinem, e888140, 2, (RF, RF_IF), rd_rm),
+ C3(sinez, e888160, 2, (RF, RF_IF), rd_rm),
+
+ C3(coss, e908100, 2, (RF, RF_IF), rd_rm),
+ C3(cossp, e908120, 2, (RF, RF_IF), rd_rm),
+ C3(cossm, e908140, 2, (RF, RF_IF), rd_rm),
+ C3(cossz, e908160, 2, (RF, RF_IF), rd_rm),
+ C3(cosd, e908180, 2, (RF, RF_IF), rd_rm),
+ C3(cosdp, e9081a0, 2, (RF, RF_IF), rd_rm),
+ C3(cosdm, e9081c0, 2, (RF, RF_IF), rd_rm),
+ C3(cosdz, e9081e0, 2, (RF, RF_IF), rd_rm),
+ C3(cose, e988100, 2, (RF, RF_IF), rd_rm),
+ C3(cosep, e988120, 2, (RF, RF_IF), rd_rm),
+ C3(cosem, e988140, 2, (RF, RF_IF), rd_rm),
+ C3(cosez, e988160, 2, (RF, RF_IF), rd_rm),
+
+ C3(tans, ea08100, 2, (RF, RF_IF), rd_rm),
+ C3(tansp, ea08120, 2, (RF, RF_IF), rd_rm),
+ C3(tansm, ea08140, 2, (RF, RF_IF), rd_rm),
+ C3(tansz, ea08160, 2, (RF, RF_IF), rd_rm),
+ C3(tand, ea08180, 2, (RF, RF_IF), rd_rm),
+ C3(tandp, ea081a0, 2, (RF, RF_IF), rd_rm),
+ C3(tandm, ea081c0, 2, (RF, RF_IF), rd_rm),
+ C3(tandz, ea081e0, 2, (RF, RF_IF), rd_rm),
+ C3(tane, ea88100, 2, (RF, RF_IF), rd_rm),
+ C3(tanep, ea88120, 2, (RF, RF_IF), rd_rm),
+ C3(tanem, ea88140, 2, (RF, RF_IF), rd_rm),
+ C3(tanez, ea88160, 2, (RF, RF_IF), rd_rm),
+
+ C3(asns, eb08100, 2, (RF, RF_IF), rd_rm),
+ C3(asnsp, eb08120, 2, (RF, RF_IF), rd_rm),
+ C3(asnsm, eb08140, 2, (RF, RF_IF), rd_rm),
+ C3(asnsz, eb08160, 2, (RF, RF_IF), rd_rm),
+ C3(asnd, eb08180, 2, (RF, RF_IF), rd_rm),
+ C3(asndp, eb081a0, 2, (RF, RF_IF), rd_rm),
+ C3(asndm, eb081c0, 2, (RF, RF_IF), rd_rm),
+ C3(asndz, eb081e0, 2, (RF, RF_IF), rd_rm),
+ C3(asne, eb88100, 2, (RF, RF_IF), rd_rm),
+ C3(asnep, eb88120, 2, (RF, RF_IF), rd_rm),
+ C3(asnem, eb88140, 2, (RF, RF_IF), rd_rm),
+ C3(asnez, eb88160, 2, (RF, RF_IF), rd_rm),
+
+ C3(acss, ec08100, 2, (RF, RF_IF), rd_rm),
+ C3(acssp, ec08120, 2, (RF, RF_IF), rd_rm),
+ C3(acssm, ec08140, 2, (RF, RF_IF), rd_rm),
+ C3(acssz, ec08160, 2, (RF, RF_IF), rd_rm),
+ C3(acsd, ec08180, 2, (RF, RF_IF), rd_rm),
+ C3(acsdp, ec081a0, 2, (RF, RF_IF), rd_rm),
+ C3(acsdm, ec081c0, 2, (RF, RF_IF), rd_rm),
+ C3(acsdz, ec081e0, 2, (RF, RF_IF), rd_rm),
+ C3(acse, ec88100, 2, (RF, RF_IF), rd_rm),
+ C3(acsep, ec88120, 2, (RF, RF_IF), rd_rm),
+ C3(acsem, ec88140, 2, (RF, RF_IF), rd_rm),
+ C3(acsez, ec88160, 2, (RF, RF_IF), rd_rm),
+
+ C3(atns, ed08100, 2, (RF, RF_IF), rd_rm),
+ C3(atnsp, ed08120, 2, (RF, RF_IF), rd_rm),
+ C3(atnsm, ed08140, 2, (RF, RF_IF), rd_rm),
+ C3(atnsz, ed08160, 2, (RF, RF_IF), rd_rm),
+ C3(atnd, ed08180, 2, (RF, RF_IF), rd_rm),
+ C3(atndp, ed081a0, 2, (RF, RF_IF), rd_rm),
+ C3(atndm, ed081c0, 2, (RF, RF_IF), rd_rm),
+ C3(atndz, ed081e0, 2, (RF, RF_IF), rd_rm),
+ C3(atne, ed88100, 2, (RF, RF_IF), rd_rm),
+ C3(atnep, ed88120, 2, (RF, RF_IF), rd_rm),
+ C3(atnem, ed88140, 2, (RF, RF_IF), rd_rm),
+ C3(atnez, ed88160, 2, (RF, RF_IF), rd_rm),
+
+ C3(urds, ee08100, 2, (RF, RF_IF), rd_rm),
+ C3(urdsp, ee08120, 2, (RF, RF_IF), rd_rm),
+ C3(urdsm, ee08140, 2, (RF, RF_IF), rd_rm),
+ C3(urdsz, ee08160, 2, (RF, RF_IF), rd_rm),
+ C3(urdd, ee08180, 2, (RF, RF_IF), rd_rm),
+ C3(urddp, ee081a0, 2, (RF, RF_IF), rd_rm),
+ C3(urddm, ee081c0, 2, (RF, RF_IF), rd_rm),
+ C3(urddz, ee081e0, 2, (RF, RF_IF), rd_rm),
+ C3(urde, ee88100, 2, (RF, RF_IF), rd_rm),
+ C3(urdep, ee88120, 2, (RF, RF_IF), rd_rm),
+ C3(urdem, ee88140, 2, (RF, RF_IF), rd_rm),
+ C3(urdez, ee88160, 2, (RF, RF_IF), rd_rm),
+
+ C3(nrms, ef08100, 2, (RF, RF_IF), rd_rm),
+ C3(nrmsp, ef08120, 2, (RF, RF_IF), rd_rm),
+ C3(nrmsm, ef08140, 2, (RF, RF_IF), rd_rm),
+ C3(nrmsz, ef08160, 2, (RF, RF_IF), rd_rm),
+ C3(nrmd, ef08180, 2, (RF, RF_IF), rd_rm),
+ C3(nrmdp, ef081a0, 2, (RF, RF_IF), rd_rm),
+ C3(nrmdm, ef081c0, 2, (RF, RF_IF), rd_rm),
+ C3(nrmdz, ef081e0, 2, (RF, RF_IF), rd_rm),
+ C3(nrme, ef88100, 2, (RF, RF_IF), rd_rm),
+ C3(nrmep, ef88120, 2, (RF, RF_IF), rd_rm),
+ C3(nrmem, ef88140, 2, (RF, RF_IF), rd_rm),
+ C3(nrmez, ef88160, 2, (RF, RF_IF), rd_rm),
+
+ C3(adfs, e000100, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(adfsp, e000120, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(adfsm, e000140, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(adfsz, e000160, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(adfd, e000180, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(adfdp, e0001a0, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(adfdm, e0001c0, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(adfdz, e0001e0, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(adfe, e080100, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(adfep, e080120, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(adfem, e080140, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(adfez, e080160, 3, (RF, RF, RF_IF), rd_rn_rm),
+
+ C3(sufs, e200100, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(sufsp, e200120, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(sufsm, e200140, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(sufsz, e200160, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(sufd, e200180, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(sufdp, e2001a0, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(sufdm, e2001c0, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(sufdz, e2001e0, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(sufe, e280100, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(sufep, e280120, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(sufem, e280140, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(sufez, e280160, 3, (RF, RF, RF_IF), rd_rn_rm),
+
+ C3(rsfs, e300100, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(rsfsp, e300120, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(rsfsm, e300140, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(rsfsz, e300160, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(rsfd, e300180, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(rsfdp, e3001a0, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(rsfdm, e3001c0, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(rsfdz, e3001e0, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(rsfe, e380100, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(rsfep, e380120, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(rsfem, e380140, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(rsfez, e380160, 3, (RF, RF, RF_IF), rd_rn_rm),
+
+ C3(mufs, e100100, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(mufsp, e100120, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(mufsm, e100140, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(mufsz, e100160, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(mufd, e100180, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(mufdp, e1001a0, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(mufdm, e1001c0, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(mufdz, e1001e0, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(mufe, e180100, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(mufep, e180120, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(mufem, e180140, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(mufez, e180160, 3, (RF, RF, RF_IF), rd_rn_rm),
+
+ C3(dvfs, e400100, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(dvfsp, e400120, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(dvfsm, e400140, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(dvfsz, e400160, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(dvfd, e400180, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(dvfdp, e4001a0, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(dvfdm, e4001c0, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(dvfdz, e4001e0, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(dvfe, e480100, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(dvfep, e480120, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(dvfem, e480140, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(dvfez, e480160, 3, (RF, RF, RF_IF), rd_rn_rm),
+
+ C3(rdfs, e500100, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(rdfsp, e500120, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(rdfsm, e500140, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(rdfsz, e500160, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(rdfd, e500180, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(rdfdp, e5001a0, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(rdfdm, e5001c0, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(rdfdz, e5001e0, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(rdfe, e580100, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(rdfep, e580120, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(rdfem, e580140, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(rdfez, e580160, 3, (RF, RF, RF_IF), rd_rn_rm),
+
+ C3(pows, e600100, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(powsp, e600120, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(powsm, e600140, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(powsz, e600160, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(powd, e600180, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(powdp, e6001a0, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(powdm, e6001c0, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(powdz, e6001e0, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(powe, e680100, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(powep, e680120, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(powem, e680140, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(powez, e680160, 3, (RF, RF, RF_IF), rd_rn_rm),
+
+ C3(rpws, e700100, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(rpwsp, e700120, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(rpwsm, e700140, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(rpwsz, e700160, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(rpwd, e700180, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(rpwdp, e7001a0, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(rpwdm, e7001c0, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(rpwdz, e7001e0, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(rpwe, e780100, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(rpwep, e780120, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(rpwem, e780140, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(rpwez, e780160, 3, (RF, RF, RF_IF), rd_rn_rm),
+
+ C3(rmfs, e800100, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(rmfsp, e800120, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(rmfsm, e800140, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(rmfsz, e800160, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(rmfd, e800180, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(rmfdp, e8001a0, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(rmfdm, e8001c0, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(rmfdz, e8001e0, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(rmfe, e880100, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(rmfep, e880120, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(rmfem, e880140, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(rmfez, e880160, 3, (RF, RF, RF_IF), rd_rn_rm),
+
+ C3(fmls, e900100, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(fmlsp, e900120, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(fmlsm, e900140, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(fmlsz, e900160, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(fmld, e900180, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(fmldp, e9001a0, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(fmldm, e9001c0, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(fmldz, e9001e0, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(fmle, e980100, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(fmlep, e980120, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(fmlem, e980140, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(fmlez, e980160, 3, (RF, RF, RF_IF), rd_rn_rm),
+
+ C3(fdvs, ea00100, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(fdvsp, ea00120, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(fdvsm, ea00140, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(fdvsz, ea00160, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(fdvd, ea00180, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(fdvdp, ea001a0, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(fdvdm, ea001c0, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(fdvdz, ea001e0, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(fdve, ea80100, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(fdvep, ea80120, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(fdvem, ea80140, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(fdvez, ea80160, 3, (RF, RF, RF_IF), rd_rn_rm),
+
+ C3(frds, eb00100, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(frdsp, eb00120, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(frdsm, eb00140, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(frdsz, eb00160, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(frdd, eb00180, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(frddp, eb001a0, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(frddm, eb001c0, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(frddz, eb001e0, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(frde, eb80100, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(frdep, eb80120, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(frdem, eb80140, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(frdez, eb80160, 3, (RF, RF, RF_IF), rd_rn_rm),
+
+ C3(pols, ec00100, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(polsp, ec00120, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(polsm, ec00140, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(polsz, ec00160, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(pold, ec00180, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(poldp, ec001a0, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(poldm, ec001c0, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(poldz, ec001e0, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(pole, ec80100, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(polep, ec80120, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(polem, ec80140, 3, (RF, RF, RF_IF), rd_rn_rm),
+ C3(polez, ec80160, 3, (RF, RF, RF_IF), rd_rn_rm),
+
+ CE(cmf, e90f110, 2, (RF, RF_IF), fpa_cmp),
+ C3E(cmfe, ed0f110, 2, (RF, RF_IF), fpa_cmp),
+ CE(cnf, eb0f110, 2, (RF, RF_IF), fpa_cmp),
+ C3E(cnfe, ef0f110, 2, (RF, RF_IF), fpa_cmp),
+
+ C3(flts, e000110, 2, (RF, RR), rn_rd),
+ C3(fltsp, e000130, 2, (RF, RR), rn_rd),
+ C3(fltsm, e000150, 2, (RF, RR), rn_rd),
+ C3(fltsz, e000170, 2, (RF, RR), rn_rd),
+ C3(fltd, e000190, 2, (RF, RR), rn_rd),
+ C3(fltdp, e0001b0, 2, (RF, RR), rn_rd),
+ C3(fltdm, e0001d0, 2, (RF, RR), rn_rd),
+ C3(fltdz, e0001f0, 2, (RF, RR), rn_rd),
+ C3(flte, e080110, 2, (RF, RR), rn_rd),
+ C3(fltep, e080130, 2, (RF, RR), rn_rd),
+ C3(fltem, e080150, 2, (RF, RR), rn_rd),
+ C3(fltez, e080170, 2, (RF, RR), rn_rd),
- case VFP_REG_Dn:
- inst.instruction |= reg << 16;
- break;
+ /* The implementation of the FIX instruction is broken on some
+ assemblers, in that it accepts a precision specifier as well as a
+ rounding specifier, despite the fact that this is meaningless.
+ To be more compatible, we accept it as well, though of course it
+ does not set any bits. */
+ CE(fix, e100110, 2, (RR, RF), rd_rm),
+ C3(fixp, e100130, 2, (RR, RF), rd_rm),
+ C3(fixm, e100150, 2, (RR, RF), rd_rm),
+ C3(fixz, e100170, 2, (RR, RF), rd_rm),
+ C3(fixsp, e100130, 2, (RR, RF), rd_rm),
+ C3(fixsm, e100150, 2, (RR, RF), rd_rm),
+ C3(fixsz, e100170, 2, (RR, RF), rd_rm),
+ C3(fixdp, e100130, 2, (RR, RF), rd_rm),
+ C3(fixdm, e100150, 2, (RR, RF), rd_rm),
+ C3(fixdz, e100170, 2, (RR, RF), rd_rm),
+ C3(fixep, e100130, 2, (RR, RF), rd_rm),
+ C3(fixem, e100150, 2, (RR, RF), rd_rm),
+ C3(fixez, e100170, 2, (RR, RF), rd_rm),
- case VFP_REG_Dm:
- inst.instruction |= reg << 0;
- break;
+ /* Instructions that were new with the real FPA, call them V2. */
+#undef ARM_VARIANT
+#define ARM_VARIANT FPU_FPA_EXT_V2
+ CE(lfm, c100200, 3, (RF, I4b, ADDR), fpa_ldmstm),
+ C3(lfmfd, c900200, 3, (RF, I4b, ADDR), fpa_ldmstm),
+ C3(lfmea, d100200, 3, (RF, I4b, ADDR), fpa_ldmstm),
+ CE(sfm, c000200, 3, (RF, I4b, ADDR), fpa_ldmstm),
+ C3(sfmfd, d000200, 3, (RF, I4b, ADDR), fpa_ldmstm),
+ C3(sfmea, c800200, 3, (RF, I4b, ADDR), fpa_ldmstm),
+
+#undef ARM_VARIANT
+#define ARM_VARIANT FPU_VFP_EXT_V1xD /* VFP V1xD (single precision). */
+ /* Moves and type conversions. */
+ CE(fcpys, eb00a40, 2, (RVS, RVS), vfp_sp_monadic),
+ CE(fmrs, e100a10, 2, (RR, RVS), vfp_reg_from_sp),
+ CE(fmsr, e000a10, 2, (RVS, RR), vfp_sp_from_reg),
+ CE(fmstat, ef1fa10, 0, (), noargs),
+ CE(fsitos, eb80ac0, 2, (RVS, RVS), vfp_sp_monadic),
+ CE(fuitos, eb80a40, 2, (RVS, RVS), vfp_sp_monadic),
+ CE(ftosis, ebd0a40, 2, (RVS, RVS), vfp_sp_monadic),
+ CE(ftosizs, ebd0ac0, 2, (RVS, RVS), vfp_sp_monadic),
+ CE(ftouis, ebc0a40, 2, (RVS, RVS), vfp_sp_monadic),
+ CE(ftouizs, ebc0ac0, 2, (RVS, RVS), vfp_sp_monadic),
+ CE(fmrx, ef00a10, 2, (RR, RVC), rd_rn),
+ CE(fmxr, ee00a10, 2, (RVC, RR), rn_rd),
+
+ /* Memory operations. */
+ CE(flds, d100a00, 2, (RVS, ADDR), vfp_sp_ldst),
+ CE(fsts, d000a00, 2, (RVS, ADDR), vfp_sp_ldst),
+ CE(fldmias, c900a00, 2, (RRw, VRSLST), vfp_sp_ldstmia),
+ CE(fldmfds, c900a00, 2, (RRw, VRSLST), vfp_sp_ldstmia),
+ CE(fldmdbs, d300a00, 2, (RRw, VRSLST), vfp_sp_ldstmdb),
+ CE(fldmeas, d300a00, 2, (RRw, VRSLST), vfp_sp_ldstmdb),
+ CE(fldmiax, c900b00, 2, (RRw, VRDLST), vfp_xp_ldstmia),
+ CE(fldmfdx, c900b00, 2, (RRw, VRDLST), vfp_xp_ldstmia),
+ CE(fldmdbx, d300b00, 2, (RRw, VRDLST), vfp_xp_ldstmdb),
+ CE(fldmeax, d300b00, 2, (RRw, VRDLST), vfp_xp_ldstmdb),
+ CE(fstmias, c800a00, 2, (RRw, VRSLST), vfp_sp_ldstmia),
+ CE(fstmeas, c800a00, 2, (RRw, VRSLST), vfp_sp_ldstmia),
+ CE(fstmdbs, d200a00, 2, (RRw, VRSLST), vfp_sp_ldstmdb),
+ CE(fstmfds, d200a00, 2, (RRw, VRSLST), vfp_sp_ldstmdb),
+ CE(fstmiax, c800b00, 2, (RRw, VRDLST), vfp_xp_ldstmia),
+ CE(fstmeax, c800b00, 2, (RRw, VRDLST), vfp_xp_ldstmia),
+ CE(fstmdbx, d200b00, 2, (RRw, VRDLST), vfp_xp_ldstmdb),
+ CE(fstmfdx, d200b00, 2, (RRw, VRDLST), vfp_xp_ldstmdb),
- default:
- abort ();
- }
- return reg;
- }
+ /* Monadic operations. */
+ CE(fabss, eb00ac0, 2, (RVS, RVS), vfp_sp_monadic),
+ CE(fnegs, eb10a40, 2, (RVS, RVS), vfp_sp_monadic),
+ CE(fsqrts, eb10ac0, 2, (RVS, RVS), vfp_sp_monadic),
+
+ /* Dyadic operations. */
+ CE(fadds, e300a00, 3, (RVS, RVS, RVS), vfp_sp_dyadic),
+ CE(fsubs, e300a40, 3, (RVS, RVS, RVS), vfp_sp_dyadic),
+ CE(fmuls, e200a00, 3, (RVS, RVS, RVS), vfp_sp_dyadic),
+ CE(fdivs, e800a00, 3, (RVS, RVS, RVS), vfp_sp_dyadic),
+ CE(fmacs, e000a00, 3, (RVS, RVS, RVS), vfp_sp_dyadic),
+ CE(fmscs, e100a00, 3, (RVS, RVS, RVS), vfp_sp_dyadic),
+ CE(fnmuls, e200a40, 3, (RVS, RVS, RVS), vfp_sp_dyadic),
+ CE(fnmacs, e000a40, 3, (RVS, RVS, RVS), vfp_sp_dyadic),
+ CE(fnmscs, e100a40, 3, (RVS, RVS, RVS), vfp_sp_dyadic),
- /* In the few cases where we might be able to accept something else
- this error can be overridden. */
- inst.error = _(all_reg_maps[REG_TYPE_DN].expected);
+ /* Comparisons. */
+ CE(fcmps, eb40a40, 2, (RVS, RVS), vfp_sp_monadic),
+ CE(fcmpzs, eb50a40, 1, (RVS), vfp_sp_compare_z),
+ CE(fcmpes, eb40ac0, 2, (RVS, RVS), vfp_sp_monadic),
+ CE(fcmpezs, eb50ac0, 1, (RVS), vfp_sp_compare_z),
- /* Restore the start point. */
- *str = start;
- return FAIL;
-}
+#undef ARM_VARIANT
+#define ARM_VARIANT FPU_VFP_EXT_V1 /* VFP V1 (Double precision). */
+ /* Moves and type conversions. */
+ CE(fcpyd, eb00b40, 2, (RVD, RVD), rd_rm),
+ CE(fcvtds, eb70ac0, 2, (RVD, RVS), vfp_dp_sp_cvt),
+ CE(fcvtsd, eb70bc0, 2, (RVS, RVD), vfp_sp_dp_cvt),
+ CE(fmdhr, e200b10, 2, (RVD, RR), rn_rd),
+ CE(fmdlr, e000b10, 2, (RVD, RR), rn_rd),
+ CE(fmrdh, e300b10, 2, (RR, RVD), rd_rn),
+ CE(fmrdl, e100b10, 2, (RR, RVD), rd_rn),
+ CE(fsitod, eb80bc0, 2, (RVD, RVS), vfp_dp_sp_cvt),
+ CE(fuitod, eb80b40, 2, (RVD, RVS), vfp_dp_sp_cvt),
+ CE(ftosid, ebd0b40, 2, (RVS, RVD), vfp_sp_dp_cvt),
+ CE(ftosizd, ebd0bc0, 2, (RVS, RVD), vfp_sp_dp_cvt),
+ CE(ftouid, ebc0b40, 2, (RVS, RVD), vfp_sp_dp_cvt),
+ CE(ftouizd, ebc0bc0, 2, (RVS, RVD), vfp_sp_dp_cvt),
+
+ /* Memory operations. */
+ CE(fldd, d100b00, 2, (RVD, ADDR), vfp_dp_ldst),
+ CE(fstd, d000b00, 2, (RVD, ADDR), vfp_dp_ldst),
+ CE(fldmiad, c900b00, 2, (RRw, VRDLST), vfp_dp_ldstmia),
+ CE(fldmfdd, c900b00, 2, (RRw, VRDLST), vfp_dp_ldstmia),
+ CE(fldmdbd, d300b00, 2, (RRw, VRDLST), vfp_dp_ldstmdb),
+ CE(fldmead, d300b00, 2, (RRw, VRDLST), vfp_dp_ldstmdb),
+ CE(fstmiad, c800b00, 2, (RRw, VRDLST), vfp_dp_ldstmia),
+ CE(fstmead, c800b00, 2, (RRw, VRDLST), vfp_dp_ldstmia),
+ CE(fstmdbd, d200b00, 2, (RRw, VRDLST), vfp_dp_ldstmdb),
+ CE(fstmfdd, d200b00, 2, (RRw, VRDLST), vfp_dp_ldstmdb),
-static void
-do_vfp_sp_monadic (char * str)
-{
- skip_whitespace (str);
+ /* Monadic operations. */
+ CE(fabsd, eb00bc0, 2, (RVD, RVD), rd_rm),
+ CE(fnegd, eb10b40, 2, (RVD, RVD), rd_rm),
+ CE(fsqrtd, eb10bc0, 2, (RVD, RVD), rd_rm),
+
+ /* Dyadic operations. */
+ CE(faddd, e300b00, 3, (RVD, RVD, RVD), rd_rn_rm),
+ CE(fsubd, e300b40, 3, (RVD, RVD, RVD), rd_rn_rm),
+ CE(fmuld, e200b00, 3, (RVD, RVD, RVD), rd_rn_rm),
+ CE(fdivd, e800b00, 3, (RVD, RVD, RVD), rd_rn_rm),
+ CE(fmacd, e000b00, 3, (RVD, RVD, RVD), rd_rn_rm),
+ CE(fmscd, e100b00, 3, (RVD, RVD, RVD), rd_rn_rm),
+ CE(fnmuld, e200b40, 3, (RVD, RVD, RVD), rd_rn_rm),
+ CE(fnmacd, e000b40, 3, (RVD, RVD, RVD), rd_rn_rm),
+ CE(fnmscd, e100b40, 3, (RVD, RVD, RVD), rd_rn_rm),
- if (vfp_sp_reg_required_here (&str, VFP_REG_Sd) == FAIL)
- return;
+ /* Comparisons. */
+ CE(fcmpd, eb40b40, 2, (RVD, RVD), rd_rm),
+ CE(fcmpzd, eb50b40, 1, (RVD), rd),
+ CE(fcmped, eb40bc0, 2, (RVD, RVD), rd_rm),
+ CE(fcmpezd, eb50bc0, 1, (RVD), rd),
+
+#undef ARM_VARIANT
+#define ARM_VARIANT FPU_VFP_EXT_V2
+ CE(fmsrr, c400a10, 3, (VRSLST, RR, RR), vfp_sp2_from_reg2),
+ CE(fmrrs, c500a10, 3, (RR, RR, VRSLST), vfp_reg2_from_sp2),
+ CE(fmdrr, c400b10, 3, (RVD, RR, RR), rm_rd_rn),
+ CE(fmrrd, c500b10, 3, (RR, RR, RVD), rd_rn_rm),
+
+#undef ARM_VARIANT
+#define ARM_VARIANT ARM_CEXT_XSCALE /* Intel XScale extensions. */
+ CE(mia, e200010, 3, (RXA, RRnpc, RRnpc), xsc_mia),
+ CE(miaph, e280010, 3, (RXA, RRnpc, RRnpc), xsc_mia),
+ CE(miabb, e2c0010, 3, (RXA, RRnpc, RRnpc), xsc_mia),
+ CE(miabt, e2d0010, 3, (RXA, RRnpc, RRnpc), xsc_mia),
+ CE(miatb, e2e0010, 3, (RXA, RRnpc, RRnpc), xsc_mia),
+ CE(miatt, e2f0010, 3, (RXA, RRnpc, RRnpc), xsc_mia),
+ CE(mar, c400000, 3, (RXA, RRnpc, RRnpc), xsc_mar),
+ CE(mra, c500000, 3, (RRnpc, RRnpc, RXA), xsc_mra),
+
+#undef ARM_VARIANT
+#define ARM_VARIANT ARM_CEXT_IWMMXT /* Intel Wireless MMX technology. */
+ CE(tandcb, e13f130, 1, (RR), iwmmxt_tandorc),
+ CE(tandch, e53f130, 1, (RR), iwmmxt_tandorc),
+ CE(tandcw, e93f130, 1, (RR), iwmmxt_tandorc),
+ CE(tbcstb, e400010, 2, (RIWR, RR), rn_rd),
+ CE(tbcsth, e400050, 2, (RIWR, RR), rn_rd),
+ CE(tbcstw, e400090, 2, (RIWR, RR), rn_rd),
+ CE(textrcb, e130170, 2, (RR, I7), iwmmxt_textrc),
+ CE(textrch, e530170, 2, (RR, I7), iwmmxt_textrc),
+ CE(textrcw, e930170, 2, (RR, I7), iwmmxt_textrc),
+ CE(textrmub, e100070, 3, (RR, RIWR, I7), iwmmxt_textrm),
+ CE(textrmuh, e500070, 3, (RR, RIWR, I7), iwmmxt_textrm),
+ CE(textrmuw, e900070, 3, (RR, RIWR, I7), iwmmxt_textrm),
+ CE(textrmsb, e100078, 3, (RR, RIWR, I7), iwmmxt_textrm),
+ CE(textrmsh, e500078, 3, (RR, RIWR, I7), iwmmxt_textrm),
+ CE(textrmsw, e900078, 3, (RR, RIWR, I7), iwmmxt_textrm),
+ CE(tinsrb, e600010, 3, (RIWR, RR, I7), iwmmxt_tinsr),
+ CE(tinsrh, e600050, 3, (RIWR, RR, I7), iwmmxt_tinsr),
+ CE(tinsrw, e600090, 3, (RIWR, RR, I7), iwmmxt_tinsr),
+ CE(tmcr, e000110, 2, (RIWC, RR), rn_rd),
+ CE(tmcrr, c400000, 3, (RIWR, RR, RR), rm_rd_rn),
+ CE(tmia, e200010, 3, (RIWR, RR, RR), iwmmxt_tmia),
+ CE(tmiaph, e280010, 3, (RIWR, RR, RR), iwmmxt_tmia),
+ CE(tmiabb, e2c0010, 3, (RIWR, RR, RR), iwmmxt_tmia),
+ CE(tmiabt, e2d0010, 3, (RIWR, RR, RR), iwmmxt_tmia),
+ CE(tmiatb, e2e0010, 3, (RIWR, RR, RR), iwmmxt_tmia),
+ CE(tmiatt, e2f0010, 3, (RIWR, RR, RR), iwmmxt_tmia),
+ CE(tmovmskb, e100030, 2, (RR, RIWR), rd_rn),
+ CE(tmovmskh, e500030, 2, (RR, RIWR), rd_rn),
+ CE(tmovmskw, e900030, 2, (RR, RIWR), rd_rn),
+ CE(tmrc, e100110, 2, (RR, RIWC), rd_rn),
+ CE(tmrrc, c500000, 3, (RR, RR, RIWR), rd_rn_rm),
+ CE(torcb, e13f150, 1, (RR), iwmmxt_tandorc),
+ CE(torch, e53f150, 1, (RR), iwmmxt_tandorc),
+ CE(torcw, e93f150, 1, (RR), iwmmxt_tandorc),
+ CE(waccb, e0001c0, 2, (RIWR, RIWR), rd_rn),
+ CE(wacch, e4001c0, 2, (RIWR, RIWR), rd_rn),
+ CE(waccw, e8001c0, 2, (RIWR, RIWR), rd_rn),
+ CE(waddbss, e300180, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(waddb, e000180, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(waddbus, e100180, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(waddhss, e700180, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(waddh, e400180, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(waddhus, e500180, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(waddwss, eb00180, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(waddw, e800180, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(waddwus, e900180, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(waligni, e000020, 4, (RIWR, RIWR, RIWR, I7), iwmmxt_waligni),
+ CE(walignr0, e800020, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(walignr1, e900020, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(walignr2, ea00020, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(walignr3, eb00020, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wand, e200000, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wandn, e300000, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wavg2b, e800000, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wavg2br, e900000, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wavg2h, ec00000, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wavg2hr, ed00000, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wcmpeqb, e000060, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wcmpeqh, e400060, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wcmpeqw, e800060, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wcmpgtub, e100060, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wcmpgtuh, e500060, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wcmpgtuw, e900060, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wcmpgtsb, e300060, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wcmpgtsh, e700060, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wcmpgtsw, eb00060, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wldrb, c100000, 2, (RIWR, ADDR), iwmmxt_wldstbh),
+ CE(wldrh, c500000, 2, (RIWR, ADDR), iwmmxt_wldstbh),
+ CE(wldrw, c100100, 2, (RIWR_RIWC, ADDR), iwmmxt_wldstw),
+ CE(wldrd, c500100, 2, (RIWR, ADDR), iwmmxt_wldstd),
+ CE(wmacs, e600100, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wmacsz, e700100, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wmacu, e400100, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wmacuz, e500100, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wmadds, ea00100, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wmaddu, e800100, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wmaxsb, e200160, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wmaxsh, e600160, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wmaxsw, ea00160, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wmaxub, e000160, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wmaxuh, e400160, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wmaxuw, e800160, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wminsb, e300160, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wminsh, e700160, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wminsw, eb00160, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wminub, e100160, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wminuh, e500160, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wminuw, e900160, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wmov, e000000, 2, (RIWR, RIWR), iwmmxt_wmov),
+ CE(wmulsm, e300100, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wmulsl, e200100, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wmulum, e100100, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wmulul, e000100, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wor, e000000, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wpackhss, e700080, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wpackhus, e500080, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wpackwss, eb00080, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wpackwus, e900080, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wpackdss, ef00080, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wpackdus, ed00080, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wrorh, e700040, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wrorhg, e700148, 3, (RIWR, RIWR, RIWG), rd_rn_rm),
+ CE(wrorw, eb00040, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wrorwg, eb00148, 3, (RIWR, RIWR, RIWG), rd_rn_rm),
+ CE(wrord, ef00040, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wrordg, ef00148, 3, (RIWR, RIWR, RIWG), rd_rn_rm),
+ CE(wsadb, e000120, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wsadbz, e100120, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wsadh, e400120, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wsadhz, e500120, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wshufh, e0001e0, 3, (RIWR, RIWR, I255), iwmmxt_wshufh),
+ CE(wsllh, e500040, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wsllhg, e500148, 3, (RIWR, RIWR, RIWG), rd_rn_rm),
+ CE(wsllw, e900040, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wsllwg, e900148, 3, (RIWR, RIWR, RIWG), rd_rn_rm),
+ CE(wslld, ed00040, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wslldg, ed00148, 3, (RIWR, RIWR, RIWG), rd_rn_rm),
+ CE(wsrah, e400040, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wsrahg, e400148, 3, (RIWR, RIWR, RIWG), rd_rn_rm),
+ CE(wsraw, e800040, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wsrawg, e800148, 3, (RIWR, RIWR, RIWG), rd_rn_rm),
+ CE(wsrad, ec00040, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wsradg, ec00148, 3, (RIWR, RIWR, RIWG), rd_rn_rm),
+ CE(wsrlh, e600040, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wsrlhg, e600148, 3, (RIWR, RIWR, RIWG), rd_rn_rm),
+ CE(wsrlw, ea00040, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wsrlwg, ea00148, 3, (RIWR, RIWR, RIWG), rd_rn_rm),
+ CE(wsrld, ee00040, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wsrldg, ee00148, 3, (RIWR, RIWR, RIWG), rd_rn_rm),
+ CE(wstrb, c000000, 2, (RIWR, ADDR), iwmmxt_wldstbh),
+ CE(wstrh, c400000, 2, (RIWR, ADDR), iwmmxt_wldstbh),
+ CE(wstrw, c000100, 2, (RIWR_RIWC, ADDR), iwmmxt_wldstw),
+ CE(wstrd, c400100, 2, (RIWR, ADDR), iwmmxt_wldstd),
+ CE(wsubbss, e3001a0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wsubb, e0001a0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wsubbus, e1001a0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wsubhss, e7001a0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wsubh, e4001a0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wsubhus, e5001a0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wsubwss, eb001a0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wsubw, e8001a0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wsubwus, e9001a0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wunpckehub,e0000c0, 2, (RIWR, RIWR), rd_rn),
+ CE(wunpckehuh,e4000c0, 2, (RIWR, RIWR), rd_rn),
+ CE(wunpckehuw,e8000c0, 2, (RIWR, RIWR), rd_rn),
+ CE(wunpckehsb,e2000c0, 2, (RIWR, RIWR), rd_rn),
+ CE(wunpckehsh,e6000c0, 2, (RIWR, RIWR), rd_rn),
+ CE(wunpckehsw,ea000c0, 2, (RIWR, RIWR), rd_rn),
+ CE(wunpckihb, e1000c0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wunpckihh, e5000c0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wunpckihw, e9000c0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wunpckelub,e0000e0, 2, (RIWR, RIWR), rd_rn),
+ CE(wunpckeluh,e4000e0, 2, (RIWR, RIWR), rd_rn),
+ CE(wunpckeluw,e8000e0, 2, (RIWR, RIWR), rd_rn),
+ CE(wunpckelsb,e2000e0, 2, (RIWR, RIWR), rd_rn),
+ CE(wunpckelsh,e6000e0, 2, (RIWR, RIWR), rd_rn),
+ CE(wunpckelsw,ea000e0, 2, (RIWR, RIWR), rd_rn),
+ CE(wunpckilb, e1000e0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wunpckilh, e5000e0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wunpckilw, e9000e0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wxor, e100000, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
+ CE(wzero, e300000, 1, (RIWR), iwmmxt_wzero),
+
+#undef ARM_VARIANT
+#define ARM_VARIANT ARM_CEXT_MAVERICK /* Cirrus Maverick instructions. */
+ CE(cfldrs, c100400, 2, (RMF, ADDR), rd_cpaddr),
+ CE(cfldrd, c500400, 2, (RMD, ADDR), rd_cpaddr),
+ CE(cfldr32, c100500, 2, (RMFX, ADDR), rd_cpaddr),
+ CE(cfldr64, c500500, 2, (RMDX, ADDR), rd_cpaddr),
+ CE(cfstrs, c000400, 2, (RMF, ADDR), rd_cpaddr),
+ CE(cfstrd, c400400, 2, (RMD, ADDR), rd_cpaddr),
+ CE(cfstr32, c000500, 2, (RMFX, ADDR), rd_cpaddr),
+ CE(cfstr64, c400500, 2, (RMDX, ADDR), rd_cpaddr),
+ CE(cfmvsr, e000450, 2, (RMF, RR), rn_rd),
+ CE(cfmvrs, e100450, 2, (RR, RMF), rd_rn),
+ CE(cfmvdlr, e000410, 2, (RMD, RR), rn_rd),
+ CE(cfmvrdl, e100410, 2, (RR, RMD), rd_rn),
+ CE(cfmvdhr, e000430, 2, (RMD, RR), rn_rd),
+ CE(cfmvrdh, e100430, 2, (RR, RMD), rd_rn),
+ CE(cfmv64lr, e000510, 2, (RMDX, RR), rn_rd),
+ CE(cfmvr64l, e100510, 2, (RR, RMDX), rd_rn),
+ CE(cfmv64hr, e000530, 2, (RMDX, RR), rn_rd),
+ CE(cfmvr64h, e100530, 2, (RR, RMDX), rd_rn),
+ CE(cfmval32, e200440, 2, (RMAX, RMFX), rd_rn),
+ CE(cfmv32al, e100440, 2, (RMFX, RMAX), rd_rn),
+ CE(cfmvam32, e200460, 2, (RMAX, RMFX), rd_rn),
+ CE(cfmv32am, e100460, 2, (RMFX, RMAX), rd_rn),
+ CE(cfmvah32, e200480, 2, (RMAX, RMFX), rd_rn),
+ CE(cfmv32ah, e100480, 2, (RMFX, RMAX), rd_rn),
+ CE(cfmva32, e2004a0, 2, (RMAX, RMFX), rd_rn),
+ CE(cfmv32a, e1004a0, 2, (RMFX, RMAX), rd_rn),
+ CE(cfmva64, e2004c0, 2, (RMAX, RMDX), rd_rn),
+ CE(cfmv64a, e1004c0, 2, (RMDX, RMAX), rd_rn),
+ CE(cfmvsc32, e2004e0, 2, (RMDS, RMDX), mav_dspsc),
+ CE(cfmv32sc, e1004e0, 2, (RMDX, RMDS), rd),
+ CE(cfcpys, e000400, 2, (RMF, RMF), rd_rn),
+ CE(cfcpyd, e000420, 2, (RMD, RMD), rd_rn),
+ CE(cfcvtsd, e000460, 2, (RMD, RMF), rd_rn),
+ CE(cfcvtds, e000440, 2, (RMF, RMD), rd_rn),
+ CE(cfcvt32s, e000480, 2, (RMF, RMFX), rd_rn),
+ CE(cfcvt32d, e0004a0, 2, (RMD, RMFX), rd_rn),
+ CE(cfcvt64s, e0004c0, 2, (RMF, RMDX), rd_rn),
+ CE(cfcvt64d, e0004e0, 2, (RMD, RMDX), rd_rn),
+ CE(cfcvts32, e100580, 2, (RMFX, RMF), rd_rn),
+ CE(cfcvtd32, e1005a0, 2, (RMFX, RMD), rd_rn),
+ CE(cftruncs32,e1005c0, 2, (RMFX, RMF), rd_rn),
+ CE(cftruncd32,e1005e0, 2, (RMFX, RMD), rd_rn),
+ CE(cfrshl32, e000550, 3, (RMFX, RMFX, RR), mav_triple),
+ CE(cfrshl64, e000570, 3, (RMDX, RMDX, RR), mav_triple),
+ CE(cfsh32, e000500, 3, (RMFX, RMFX, I63s), mav_shift),
+ CE(cfsh64, e200500, 3, (RMDX, RMDX, I63s), mav_shift),
+ CE(cfcmps, e100490, 3, (RR, RMF, RMF), rd_rn_rm),
+ CE(cfcmpd, e1004b0, 3, (RR, RMD, RMD), rd_rn_rm),
+ CE(cfcmp32, e100590, 3, (RR, RMFX, RMFX), rd_rn_rm),
+ CE(cfcmp64, e1005b0, 3, (RR, RMDX, RMDX), rd_rn_rm),
+ CE(cfabss, e300400, 2, (RMF, RMF), rd_rn),
+ CE(cfabsd, e300420, 2, (RMD, RMD), rd_rn),
+ CE(cfnegs, e300440, 2, (RMF, RMF), rd_rn),
+ CE(cfnegd, e300460, 2, (RMD, RMD), rd_rn),
+ CE(cfadds, e300480, 3, (RMF, RMF, RMF), rd_rn_rm),
+ CE(cfaddd, e3004a0, 3, (RMD, RMD, RMD), rd_rn_rm),
+ CE(cfsubs, e3004c0, 3, (RMF, RMF, RMF), rd_rn_rm),
+ CE(cfsubd, e3004e0, 3, (RMD, RMD, RMD), rd_rn_rm),
+ CE(cfmuls, e100400, 3, (RMF, RMF, RMF), rd_rn_rm),
+ CE(cfmuld, e100420, 3, (RMD, RMD, RMD), rd_rn_rm),
+ CE(cfabs32, e300500, 2, (RMFX, RMFX), rd_rn),
+ CE(cfabs64, e300520, 2, (RMDX, RMDX), rd_rn),
+ CE(cfneg32, e300540, 2, (RMFX, RMFX), rd_rn),
+ CE(cfneg64, e300560, 2, (RMDX, RMDX), rd_rn),
+ CE(cfadd32, e300580, 3, (RMFX, RMFX, RMFX), rd_rn_rm),
+ CE(cfadd64, e3005a0, 3, (RMDX, RMDX, RMDX), rd_rn_rm),
+ CE(cfsub32, e3005c0, 3, (RMFX, RMFX, RMFX), rd_rn_rm),
+ CE(cfsub64, e3005e0, 3, (RMDX, RMDX, RMDX), rd_rn_rm),
+ CE(cfmul32, e100500, 3, (RMFX, RMFX, RMFX), rd_rn_rm),
+ CE(cfmul64, e100520, 3, (RMDX, RMDX, RMDX), rd_rn_rm),
+ CE(cfmac32, e100540, 3, (RMFX, RMFX, RMFX), rd_rn_rm),
+ CE(cfmsc32, e100560, 3, (RMFX, RMFX, RMFX), rd_rn_rm),
+ CE(cfmadd32, e000600, 4, (RMAX, RMFX, RMFX, RMFX), mav_quad),
+ CE(cfmsub32, e100600, 4, (RMAX, RMFX, RMFX, RMFX), mav_quad),
+ CE(cfmadda32, e200600, 4, (RMAX, RMAX, RMFX, RMFX), mav_quad),
+ CE(cfmsuba32, e300600, 4, (RMAX, RMAX, RMFX, RMFX), mav_quad),
+};
+#undef ARM_VARIANT
+#undef THUMB_VARIANT
+#undef TCE
+#undef TCM
+#undef TUE
+#undef TUF
+#undef TCC
+#undef CE
+#undef CM
+#undef UE
+#undef UF
+#undef UT
+#undef OPS0
+#undef OPS1
+#undef OPS2
+#undef OPS3
+#undef OPS4
+#undef OPS5
+#undef OPS6
+#undef do_0
+\f
+/* MD interface: bits in the object file. */
- if (skip_past_comma (&str) == FAIL
- || vfp_sp_reg_required_here (&str, VFP_REG_Sm) == FAIL)
- {
- if (! inst.error)
- inst.error = BAD_ARGS;
- return;
- }
+/* Turn an integer of n bytes (in val) into a stream of bytes appropriate
+ for use in the a.out file, and stores them in the array pointed to by buf.
+ This knows about the endian-ness of the target machine and does
+ THE RIGHT THING, whatever it is. Possible values for n are 1 (byte)
+ 2 (short) and 4 (long) Floating numbers are put out as a series of
+ LITTLENUMS (shorts, here at least). */
- end_of_line (str);
+void
+md_number_to_chars (char * buf, valueT val, int n)
+{
+ if (target_big_endian)
+ number_to_chars_bigendian (buf, val, n);
+ else
+ number_to_chars_littleendian (buf, val, n);
}
-static void
-do_vfp_dp_monadic (char * str)
+static valueT
+md_chars_to_number (char * buf, int n)
{
- skip_whitespace (str);
-
- if (vfp_dp_reg_required_here (&str, VFP_REG_Dd) == FAIL)
- return;
+ valueT result = 0;
+ unsigned char * where = (unsigned char *) buf;
- if (skip_past_comma (&str) == FAIL
- || vfp_dp_reg_required_here (&str, VFP_REG_Dm) == FAIL)
+ if (target_big_endian)
{
- if (! inst.error)
- inst.error = BAD_ARGS;
- return;
+ while (n--)
+ {
+ result <<= 8;
+ result |= (*where++ & 255);
+ }
}
-
- end_of_line (str);
-}
-
-static void
-do_vfp_sp_dyadic (char * str)
-{
- skip_whitespace (str);
-
- if (vfp_sp_reg_required_here (&str, VFP_REG_Sd) == FAIL)
- return;
-
- if (skip_past_comma (&str) == FAIL
- || vfp_sp_reg_required_here (&str, VFP_REG_Sn) == FAIL
- || skip_past_comma (&str) == FAIL
- || vfp_sp_reg_required_here (&str, VFP_REG_Sm) == FAIL)
+ else
{
- if (! inst.error)
- inst.error = BAD_ARGS;
- return;
+ while (n--)
+ {
+ result <<= 8;
+ result |= (where[n] & 255);
+ }
}
- end_of_line (str);
+ return result;
}
-static void
-do_vfp_dp_dyadic (char * str)
-{
- skip_whitespace (str);
+/* MD interface: Sections. */
- if (vfp_dp_reg_required_here (&str, VFP_REG_Dd) == FAIL)
- return;
+int
+md_estimate_size_before_relax (fragS * fragP ATTRIBUTE_UNUSED,
+ segT segtype ATTRIBUTE_UNUSED)
+{
+ as_fatal (_("md_estimate_size_before_relax\n"));
+ return 1;
+}
- if (skip_past_comma (&str) == FAIL
- || vfp_dp_reg_required_here (&str, VFP_REG_Dn) == FAIL
- || skip_past_comma (&str) == FAIL
- || vfp_dp_reg_required_here (&str, VFP_REG_Dm) == FAIL)
- {
- if (! inst.error)
- inst.error = BAD_ARGS;
- return;
- }
+/* Round up a section size to the appropriate boundary. */
- end_of_line (str);
+valueT
+md_section_align (segT segment ATTRIBUTE_UNUSED,
+ valueT size)
+{
+#ifdef OBJ_ELF
+ return size;
+#else
+ /* Round all sects to multiple of 4. */
+ return (size + 3) & ~3;
+#endif
}
-static void
-do_vfp_reg_from_sp (char * str)
+/* This is called from HANDLE_ALIGN in write.c. Fill in the contents
+ of an rs_align_code fragment. */
+
+void
+arm_handle_align (fragS * fragP)
{
- skip_whitespace (str);
+ static char const arm_noop[4] = { 0x00, 0x00, 0xa0, 0xe1 };
+ static char const thumb_noop[2] = { 0xc0, 0x46 };
+ static char const arm_bigend_noop[4] = { 0xe1, 0xa0, 0x00, 0x00 };
+ static char const thumb_bigend_noop[2] = { 0x46, 0xc0 };
+
+ int bytes, fix, noop_size;
+ char * p;
+ const char * noop;
- if (reg_required_here (&str, 12) == FAIL)
+ if (fragP->fr_type != rs_align_code)
return;
- if (skip_past_comma (&str) == FAIL
- || vfp_sp_reg_required_here (&str, VFP_REG_Sn) == FAIL)
- {
- if (! inst.error)
- inst.error = BAD_ARGS;
- return;
- }
+ bytes = fragP->fr_next->fr_address - fragP->fr_address - fragP->fr_fix;
+ p = fragP->fr_literal + fragP->fr_fix;
+ fix = 0;
- end_of_line (str);
-}
+ if (bytes > MAX_MEM_FOR_RS_ALIGN_CODE)
+ bytes &= MAX_MEM_FOR_RS_ALIGN_CODE;
-/* Parse a VFP register list. If the string is invalid return FAIL.
- Otherwise return the number of registers, and set PBASE to the first
- register. Double precision registers are matched if DP is nonzero. */
-
-static int
-vfp_parse_reg_list (char **str, int *pbase, int dp)
-{
- int base_reg;
- int new_base;
- int regtype;
- int max_regs;
- int count = 0;
- int warned = 0;
- unsigned long mask = 0;
- int i;
-
- if (**str != '{')
- return FAIL;
-
- (*str)++;
- skip_whitespace (*str);
-
- if (dp)
+ if (fragP->tc_frag_data)
{
- regtype = REG_TYPE_DN;
- max_regs = 16;
+ if (target_big_endian)
+ noop = thumb_bigend_noop;
+ else
+ noop = thumb_noop;
+ noop_size = sizeof (thumb_noop);
}
else
{
- regtype = REG_TYPE_SN;
- max_regs = 32;
+ if (target_big_endian)
+ noop = arm_bigend_noop;
+ else
+ noop = arm_noop;
+ noop_size = sizeof (arm_noop);
}
- base_reg = max_regs;
-
- do
+ if (bytes & (noop_size - 1))
{
- new_base = arm_reg_parse (str, all_reg_maps[regtype].htab);
- if (new_base == FAIL)
- {
- inst.error = _(all_reg_maps[regtype].expected);
- return FAIL;
- }
-
- if (new_base < base_reg)
- base_reg = new_base;
-
- if (mask & (1 << new_base))
- {
- inst.error = _("invalid register list");
- return FAIL;
- }
-
- if ((mask >> new_base) != 0 && ! warned)
- {
- as_tsktsk (_("register list not in ascending order"));
- warned = 1;
- }
-
- mask |= 1 << new_base;
- count++;
-
- skip_whitespace (*str);
-
- if (**str == '-') /* We have the start of a range expression */
- {
- int high_range;
-
- (*str)++;
-
- if ((high_range
- = arm_reg_parse (str, all_reg_maps[regtype].htab))
- == FAIL)
- {
- inst.error = _(all_reg_maps[regtype].expected);
- return FAIL;
- }
-
- if (high_range <= new_base)
- {
- inst.error = _("register range not in ascending order");
- return FAIL;
- }
-
- for (new_base++; new_base <= high_range; new_base++)
- {
- if (mask & (1 << new_base))
- {
- inst.error = _("invalid register list");
- return FAIL;
- }
-
- mask |= 1 << new_base;
- count++;
- }
- }
+ fix = bytes & (noop_size - 1);
+ memset (p, 0, fix);
+ p += fix;
+ bytes -= fix;
}
- while (skip_past_comma (str) != FAIL);
-
- (*str)++;
- /* Sanity check -- should have raised a parse error above. */
- if (count == 0 || count > max_regs)
- abort ();
-
- *pbase = base_reg;
-
- /* Final test -- the registers must be consecutive. */
- mask >>= base_reg;
- for (i = 0; i < count; i++)
+ while (bytes >= noop_size)
{
- if ((mask & (1u << i)) == 0)
- {
- inst.error = _("non-contiguous register range");
- return FAIL;
- }
+ memcpy (p, noop, noop_size);
+ p += noop_size;
+ bytes -= noop_size;
+ fix += noop_size;
}
- return count;
+ fragP->fr_fix += fix;
+ fragP->fr_var = noop_size;
}
-static void
-do_vfp_reg2_from_sp2 (char * str)
+/* Called from md_do_align. Used to create an alignment
+ frag in a code section. */
+
+void
+arm_frag_align_code (int n, int max)
{
- int reg;
+ char * p;
- skip_whitespace (str);
+ /* We assume that there will never be a requirement
+ to support alignments greater than 32 bytes. */
+ if (max > MAX_MEM_FOR_RS_ALIGN_CODE)
+ as_fatal (_("alignments greater than 32 bytes not supported in .text sections."));
- if (reg_required_here (&str, 12) == FAIL
- || skip_past_comma (&str) == FAIL
- || reg_required_here (&str, 16) == FAIL
- || skip_past_comma (&str) == FAIL)
- {
- if (! inst.error)
- inst.error = BAD_ARGS;
- return;
- }
+ p = frag_var (rs_align_code,
+ MAX_MEM_FOR_RS_ALIGN_CODE,
+ 1,
+ (relax_substateT) max,
+ (symbolS *) NULL,
+ (offsetT) n,
+ (char *) NULL);
+ *p = 0;
+}
- /* We require exactly two consecutive SP registers. */
- if (vfp_parse_reg_list (&str, ®, 0) != 2)
- {
- if (! inst.error)
- inst.error = _("only two consecutive VFP SP registers allowed here");
- }
- vfp_sp_encode_reg (reg, VFP_REG_Sm);
+/* Perform target specific initialisation of a frag. */
- end_of_line (str);
+void
+arm_init_frag (fragS * fragP)
+{
+ /* Record whether this frag is in an ARM or a THUMB area. */
+ fragP->tc_frag_data = thumb_mode;
}
-static void
-do_vfp_sp_from_reg (char * str)
+#ifdef OBJ_ELF
+/* When we change sections we need to issue a new mapping symbol. */
+
+void
+arm_elf_change_section (void)
{
- skip_whitespace (str);
+ flagword flags;
+ segment_info_type *seginfo;
- if (vfp_sp_reg_required_here (&str, VFP_REG_Sn) == FAIL)
+ /* Link an unlinked unwind index table section to the .text section. */
+ if (elf_section_type (now_seg) == SHT_ARM_EXIDX
+ && elf_linked_to_section (now_seg) == NULL)
+ elf_linked_to_section (now_seg) = text_section;
+
+ if (!SEG_NORMAL (now_seg))
return;
- if (skip_past_comma (&str) == FAIL
- || reg_required_here (&str, 12) == FAIL)
- {
- if (! inst.error)
- inst.error = BAD_ARGS;
- return;
- }
+ flags = bfd_get_section_flags (stdoutput, now_seg);
+
+ /* We can ignore sections that only contain debug info. */
+ if ((flags & SEC_ALLOC) == 0)
+ return;
- end_of_line (str);
+ seginfo = seg_info (now_seg);
+ mapstate = seginfo->tc_segment_info_data.mapstate;
+ marked_pr_dependency = seginfo->tc_segment_info_data.marked_pr_dependency;
}
-static void
-do_vfp_sp2_from_reg2 (char * str)
+int
+arm_elf_section_type (const char * str, size_t len)
{
- int reg;
-
- skip_whitespace (str);
+ if (len == 5 && strncmp (str, "exidx", 5) == 0)
+ return SHT_ARM_EXIDX;
- /* We require exactly two consecutive SP registers. */
- if (vfp_parse_reg_list (&str, ®, 0) != 2)
- {
- if (! inst.error)
- inst.error = _("only two consecutive VFP SP registers allowed here");
- }
- vfp_sp_encode_reg (reg, VFP_REG_Sm);
+ return -1;
+}
+\f
+/* Code to deal with unwinding tables. */
- if (skip_past_comma (&str) == FAIL
- || reg_required_here (&str, 12) == FAIL
- || skip_past_comma (&str) == FAIL
- || reg_required_here (&str, 16) == FAIL)
- {
- if (! inst.error)
- inst.error = BAD_ARGS;
- return;
- }
+static void add_unwind_adjustsp (offsetT);
- end_of_line (str);
-}
+/* Cenerate and deferred unwind frame offset. */
static void
-do_vfp_reg_from_dp (char * str)
+flush_pending_unwind (void)
{
- skip_whitespace (str);
-
- if (reg_required_here (&str, 12) == FAIL)
- return;
-
- if (skip_past_comma (&str) == FAIL
- || vfp_dp_reg_required_here (&str, VFP_REG_Dn) == FAIL)
- {
- if (! inst.error)
- inst.error = BAD_ARGS;
- return;
- }
+ offsetT offset;
- end_of_line (str);
+ offset = unwind.pending_offset;
+ unwind.pending_offset = 0;
+ if (offset != 0)
+ add_unwind_adjustsp (offset);
}
+/* Add an opcode to this list for this function. Two-byte opcodes should
+ be passed as op[0] << 8 | op[1]. The list of opcodes is built in reverse
+ order. */
+
static void
-do_vfp_reg2_from_dp (char * str)
+add_unwind_opcode (valueT op, int length)
{
- skip_whitespace (str);
+ /* Add any deferred stack adjustment. */
+ if (unwind.pending_offset)
+ flush_pending_unwind ();
- if (reg_required_here (&str, 12) == FAIL)
- return;
+ unwind.sp_restored = 0;
- if (skip_past_comma (&str) == FAIL
- || reg_required_here (&str, 16) == FAIL
- || skip_past_comma (&str) == FAIL
- || vfp_dp_reg_required_here (&str, VFP_REG_Dm) == FAIL)
+ if (unwind.opcode_count + length > unwind.opcode_alloc)
{
- if (! inst.error)
- inst.error = BAD_ARGS;
- return;
+ unwind.opcode_alloc += ARM_OPCODE_CHUNK_SIZE;
+ if (unwind.opcodes)
+ unwind.opcodes = xrealloc (unwind.opcodes,
+ unwind.opcode_alloc);
+ else
+ unwind.opcodes = xmalloc (unwind.opcode_alloc);
}
-
- end_of_line (str);
-}
-
-static void
-do_vfp_dp_from_reg (char * str)
-{
- skip_whitespace (str);
-
- if (vfp_dp_reg_required_here (&str, VFP_REG_Dn) == FAIL)
- return;
-
- if (skip_past_comma (&str) == FAIL
- || reg_required_here (&str, 12) == FAIL)
+ while (length > 0)
{
- if (! inst.error)
- inst.error = BAD_ARGS;
- return;
+ length--;
+ unwind.opcodes[unwind.opcode_count] = op & 0xff;
+ op >>= 8;
+ unwind.opcode_count++;
}
-
- end_of_line (str);
}
+/* Add unwind opcodes to adjust the stack pointer. */
+
static void
-do_vfp_dp_from_reg2 (char * str)
+add_unwind_adjustsp (offsetT offset)
{
- skip_whitespace (str);
-
- if (vfp_dp_reg_required_here (&str, VFP_REG_Dm) == FAIL)
- return;
+ valueT op;
- if (skip_past_comma (&str) == FAIL
- || reg_required_here (&str, 12) == FAIL
- || skip_past_comma (&str) == FAIL
- || reg_required_here (&str, 16) == FAIL)
+ if (offset > 0x200)
{
- if (! inst.error)
- inst.error = BAD_ARGS;
- return;
- }
+ /* We need at most 5 bytes to hold a 32-bit value in a uleb128. */
+ char bytes[5];
+ int n;
+ valueT o;
- end_of_line (str);
-}
-
-static const struct vfp_reg *
-vfp_psr_parse (char ** str)
-{
- char *start = *str;
- char c;
- char *p;
- const struct vfp_reg *vreg;
-
- p = start;
+ /* Long form: 0xb2, uleb128. */
+ /* This might not fit in a word so add the individual bytes,
+ remembering the list is built in reverse order. */
+ o = (valueT) ((offset - 0x204) >> 2);
+ if (o == 0)
+ add_unwind_opcode (0, 1);
- /* Find the end of the current token. */
- do
+ /* Calculate the uleb128 encoding of the offset. */
+ n = 0;
+ while (o)
+ {
+ bytes[n] = o & 0x7f;
+ o >>= 7;
+ if (o)
+ bytes[n] |= 0x80;
+ n++;
+ }
+ /* Add the insn. */
+ for (; n; n--)
+ add_unwind_opcode (bytes[n - 1], 1);
+ add_unwind_opcode (0xb2, 1);
+ }
+ else if (offset > 0x100)
{
- c = *p++;
+ /* Two short opcodes. */
+ add_unwind_opcode (0x3f, 1);
+ op = (offset - 0x104) >> 2;
+ add_unwind_opcode (op, 1);
}
- while (ISALPHA (c));
-
- /* Mark it. */
- *--p = 0;
-
- for (vreg = vfp_regs + 0;
- vreg < vfp_regs + sizeof (vfp_regs) / sizeof (struct vfp_reg);
- vreg++)
+ else if (offset > 0)
+ {
+ /* Short opcode. */
+ op = (offset - 4) >> 2;
+ add_unwind_opcode (op, 1);
+ }
+ else if (offset < 0)
{
- if (streq (start, vreg->name))
+ offset = -offset;
+ while (offset > 0x100)
{
- *p = c;
- *str = p;
- return vreg;
+ add_unwind_opcode (0x7f, 1);
+ offset -= 0x100;
}
+ op = ((offset - 4) >> 2) | 0x40;
+ add_unwind_opcode (op, 1);
}
-
- *p = c;
- return NULL;
}
-static int
-vfp_psr_required_here (char ** str)
+/* Finish the list of unwind opcodes for this function. */
+static void
+finish_unwind_opcodes (void)
{
- char *start = *str;
- const struct vfp_reg *vreg;
-
- vreg = vfp_psr_parse (str);
+ valueT op;
- if (vreg)
+ if (unwind.fp_used)
{
- inst.instruction |= vreg->regno;
- return SUCCESS;
- }
-
- inst.error = _("VFP system register expected");
+ /* Adjust sp as neccessary. */
+ unwind.pending_offset += unwind.fp_offset - unwind.frame_size;
+ flush_pending_unwind ();
- *str = start;
- return FAIL;
+ /* After restoring sp from the frame pointer. */
+ op = 0x90 | unwind.fp_reg;
+ add_unwind_opcode (op, 1);
+ }
+ else
+ flush_pending_unwind ();
}
-static void
-do_vfp_reg_from_ctrl (char * str)
-{
- skip_whitespace (str);
-
- if (reg_required_here (&str, 12) == FAIL)
- return;
-
- if (skip_past_comma (&str) == FAIL
- || vfp_psr_required_here (&str) == FAIL)
- {
- if (! inst.error)
- inst.error = BAD_ARGS;
- return;
- }
- end_of_line (str);
-}
+/* Start an exception table entry. If idx is nonzero this is an index table
+ entry. */
static void
-do_vfp_ctrl_from_reg (char * str)
+start_unwind_section (const segT text_seg, int idx)
{
- skip_whitespace (str);
-
- if (vfp_psr_required_here (&str) == FAIL)
- return;
+ const char * text_name;
+ const char * prefix;
+ const char * prefix_once;
+ const char * group_name;
+ size_t prefix_len;
+ size_t text_len;
+ char * sec_name;
+ size_t sec_name_len;
+ int type;
+ int flags;
+ int linkonce;
- if (skip_past_comma (&str) == FAIL
- || reg_required_here (&str, 12) == FAIL)
+ if (idx)
{
- if (! inst.error)
- inst.error = BAD_ARGS;
- return;
+ prefix = ELF_STRING_ARM_unwind;
+ prefix_once = ELF_STRING_ARM_unwind_once;
+ type = SHT_ARM_EXIDX;
}
-
- end_of_line (str);
-}
-
-static void
-do_vfp_sp_ldst (char * str)
-{
- skip_whitespace (str);
-
- if (vfp_sp_reg_required_here (&str, VFP_REG_Sd) == FAIL)
+ else
{
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
+ prefix = ELF_STRING_ARM_unwind_info;
+ prefix_once = ELF_STRING_ARM_unwind_info_once;
+ type = SHT_PROGBITS;
}
- if (skip_past_comma (&str) == FAIL
- || cp_address_required_here (&str, CP_NO_WB) == FAIL)
+ text_name = segment_name (text_seg);
+ if (streq (text_name, ".text"))
+ text_name = "";
+
+ if (strncmp (text_name, ".gnu.linkonce.t.",
+ strlen (".gnu.linkonce.t.")) == 0)
{
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
+ prefix = prefix_once;
+ text_name += strlen (".gnu.linkonce.t.");
}
- end_of_line (str);
-}
+ prefix_len = strlen (prefix);
+ text_len = strlen (text_name);
+ sec_name_len = prefix_len + text_len;
+ sec_name = xmalloc (sec_name_len + 1);
+ memcpy (sec_name, prefix, prefix_len);
+ memcpy (sec_name + prefix_len, text_name, text_len);
+ sec_name[prefix_len + text_len] = '\0';
-static void
-do_vfp_dp_ldst (char * str)
-{
- skip_whitespace (str);
+ flags = SHF_ALLOC;
+ linkonce = 0;
+ group_name = 0;
- if (vfp_dp_reg_required_here (&str, VFP_REG_Dd) == FAIL)
+ /* Handle COMDAT group. */
+ if (prefix != prefix_once && (text_seg->flags & SEC_LINK_ONCE) != 0)
{
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
+ group_name = elf_group_name (text_seg);
+ if (group_name == NULL)
+ {
+ as_bad ("Group section `%s' has no group signature",
+ segment_name (text_seg));
+ ignore_rest_of_line ();
+ return;
+ }
+ flags |= SHF_GROUP;
+ linkonce = 1;
}
- if (skip_past_comma (&str) == FAIL
- || cp_address_required_here (&str, CP_NO_WB) == FAIL)
- {
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
- }
+ obj_elf_change_section (sec_name, type, flags, 0, group_name, linkonce, 0);
- end_of_line (str);
+ /* Set the setion link for index tables. */
+ if (idx)
+ elf_linked_to_section (now_seg) = text_seg;
}
-static void
-vfp_sp_ldstm (char * str, enum vfp_ldstm_type ldstm_type)
+/* Start an unwind table entry. HAVE_DATA is nonzero if we have additional
+ personality routine data. Returns zero, or the index table value for
+ and inline entry. */
+
+static valueT
+create_unwind_entry (int have_data)
{
- int count;
- int reg;
+ int size;
+ addressT where;
+ char *ptr;
+ /* The current word of data. */
+ valueT data;
+ /* The number of bytes left in this word. */
+ int n;
- skip_whitespace (str);
+ finish_unwind_opcodes ();
- if (reg_required_here (&str, 16) == FAIL)
- return;
+ /* Remember the current text section. */
+ unwind.saved_seg = now_seg;
+ unwind.saved_subseg = now_subseg;
- skip_whitespace (str);
+ start_unwind_section (now_seg, 0);
- if (*str == '!')
- {
- inst.instruction |= WRITE_BACK;
- str++;
- }
- else if (ldstm_type != VFP_LDSTMIA)
+ if (unwind.personality_routine == NULL)
{
- inst.error = _("this addressing mode requires base-register writeback");
- return;
- }
+ if (unwind.personality_index == -2)
+ {
+ if (have_data)
+ as_bad (_("handerdata in cantunwind frame"));
+ return 1; /* EXIDX_CANTUNWIND. */
+ }
- if (skip_past_comma (&str) == FAIL
- || (count = vfp_parse_reg_list (&str, ®, 0)) == FAIL)
- {
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
- }
- vfp_sp_encode_reg (reg, VFP_REG_Sd);
+ /* Use a default personality routine if none is specified. */
+ if (unwind.personality_index == -1)
+ {
+ if (unwind.opcode_count > 3)
+ unwind.personality_index = 1;
+ else
+ unwind.personality_index = 0;
+ }
- inst.instruction |= count;
- end_of_line (str);
-}
+ /* Space for the personality routine entry. */
+ if (unwind.personality_index == 0)
+ {
+ if (unwind.opcode_count > 3)
+ as_bad (_("too many unwind opcodes for personality routine 0"));
-static void
-vfp_dp_ldstm (char * str, enum vfp_ldstm_type ldstm_type)
-{
- int count;
- int reg;
+ if (!have_data)
+ {
+ /* All the data is inline in the index table. */
+ data = 0x80;
+ n = 3;
+ while (unwind.opcode_count > 0)
+ {
+ unwind.opcode_count--;
+ data = (data << 8) | unwind.opcodes[unwind.opcode_count];
+ n--;
+ }
- skip_whitespace (str);
+ /* Pad with "finish" opcodes. */
+ while (n--)
+ data = (data << 8) | 0xb0;
- if (reg_required_here (&str, 16) == FAIL)
- return;
+ return data;
+ }
+ size = 0;
+ }
+ else
+ /* We get two opcodes "free" in the first word. */
+ size = unwind.opcode_count - 2;
+ }
+ else
+ /* An extra byte is required for the opcode count. */
+ size = unwind.opcode_count + 1;
- skip_whitespace (str);
+ size = (size + 3) >> 2;
+ if (size > 0xff)
+ as_bad (_("too many unwind opcodes"));
- if (*str == '!')
- {
- inst.instruction |= WRITE_BACK;
- str++;
- }
- else if (ldstm_type != VFP_LDSTMIA && ldstm_type != VFP_LDSTMIAX)
- {
- inst.error = _("this addressing mode requires base-register writeback");
- return;
- }
+ frag_align (2, 0, 0);
+ record_alignment (now_seg, 2);
+ unwind.table_entry = expr_build_dot ();
+
+ /* Allocate the table entry. */
+ ptr = frag_more ((size << 2) + 4);
+ where = frag_now_fix () - ((size << 2) + 4);
- if (skip_past_comma (&str) == FAIL
- || (count = vfp_parse_reg_list (&str, ®, 1)) == FAIL)
+ switch (unwind.personality_index)
{
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
- }
+ case -1:
+ /* ??? Should this be a PLT generating relocation? */
+ /* Custom personality routine. */
+ fix_new (frag_now, where, 4, unwind.personality_routine, 0, 1,
+ BFD_RELOC_ARM_PREL31);
- count <<= 1;
- if (ldstm_type == VFP_LDSTMIAX || ldstm_type == VFP_LDSTMDBX)
- count += 1;
+ where += 4;
+ ptr += 4;
- inst.instruction |= (reg << 12) | count;
- end_of_line (str);
-}
+ /* Set the first byte to the number of additional words. */
+ data = size - 1;
+ n = 3;
+ break;
-static void
-do_vfp_sp_ldstmia (char * str)
-{
- vfp_sp_ldstm (str, VFP_LDSTMIA);
-}
+ /* ABI defined personality routines. */
+ case 0:
+ /* Three opcodes bytes are packed into the first word. */
+ data = 0x80;
+ n = 3;
+ break;
-static void
-do_vfp_sp_ldstmdb (char * str)
-{
- vfp_sp_ldstm (str, VFP_LDSTMDB);
-}
+ case 1:
+ case 2:
+ /* The size and first two opcode bytes go in the first word. */
+ data = ((0x80 + unwind.personality_index) << 8) | size;
+ n = 2;
+ break;
-static void
-do_vfp_dp_ldstmia (char * str)
-{
- vfp_dp_ldstm (str, VFP_LDSTMIA);
-}
+ default:
+ /* Should never happen. */
+ abort ();
+ }
-static void
-do_vfp_dp_ldstmdb (char * str)
-{
- vfp_dp_ldstm (str, VFP_LDSTMDB);
+ /* Pack the opcodes into words (MSB first), reversing the list at the same
+ time. */
+ while (unwind.opcode_count > 0)
+ {
+ if (n == 0)
+ {
+ md_number_to_chars (ptr, data, 4);
+ ptr += 4;
+ n = 4;
+ data = 0;
+ }
+ unwind.opcode_count--;
+ n--;
+ data = (data << 8) | unwind.opcodes[unwind.opcode_count];
+ }
+
+ /* Finish off the last word. */
+ if (n < 4)
+ {
+ /* Pad with "finish" opcodes. */
+ while (n--)
+ data = (data << 8) | 0xb0;
+
+ md_number_to_chars (ptr, data, 4);
+ }
+
+ if (!have_data)
+ {
+ /* Add an empty descriptor if there is no user-specified data. */
+ ptr = frag_more (4);
+ md_number_to_chars (ptr, 0, 4);
+ }
+
+ return 0;
}
-static void
-do_vfp_xp_ldstmia (char *str)
+/* Convert REGNAME to a DWARF-2 register number. */
+
+int
+tc_arm_regname_to_dw2regnum (const char *regname)
{
- vfp_dp_ldstm (str, VFP_LDSTMIAX);
+ int reg = arm_reg_parse ((char **) ®name, REG_TYPE_RN);
+
+ if (reg == FAIL)
+ return -1;
+
+ return reg;
}
-static void
-do_vfp_xp_ldstmdb (char * str)
+/* Initialize the DWARF-2 unwind information for this procedure. */
+
+void
+tc_arm_frame_initial_instructions (void)
{
- vfp_dp_ldstm (str, VFP_LDSTMDBX);
+ cfi_add_CFA_def_cfa (REG_SP, 0);
}
+#endif /* OBJ_ELF */
-static void
-do_vfp_sp_compare_z (char * str)
-{
- skip_whitespace (str);
- if (vfp_sp_reg_required_here (&str, VFP_REG_Sd) == FAIL)
- {
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
- }
+/* MD interface: Symbol and relocation handling. */
- end_of_line (str);
-}
+/* The knowledge of the PC's pipeline offset is built into the insns
+ themselves. */
-static void
-do_vfp_dp_compare_z (char * str)
+long
+md_pcrel_from (fixS * fixP)
{
- skip_whitespace (str);
+ if (fixP->fx_addsy
+ && S_GET_SEGMENT (fixP->fx_addsy) == undefined_section
+ && fixP->fx_subsy == NULL)
+ return 0;
- if (vfp_dp_reg_required_here (&str, VFP_REG_Dd) == FAIL)
+ /* PC relative addressing on the Thumb is slightly odd as the bottom
+ two bits of the PC are forced to zero for the calculation. This
+ happens *after* application of the pipeline offset. However,
+ Thumb adrl already adjusts for this, so we need not do it again. */
+ switch (fixP->fx_r_type)
{
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
+ case BFD_RELOC_ARM_THUMB_ADD:
+ return (fixP->fx_where + fixP->fx_frag->fr_address) & ~3;
+
+ case BFD_RELOC_ARM_THUMB_OFFSET:
+ case BFD_RELOC_ARM_T32_OFFSET_IMM:
+ return (fixP->fx_where + fixP->fx_frag->fr_address + 4) & ~3;
+
+ default:
+ break;
}
- end_of_line (str);
+#ifdef TE_WINCE
+ /* The pattern was adjusted to accommodate CE's off-by-one fixups,
+ so we un-adjust here to compensate for the accommodation. */
+ return fixP->fx_where + fixP->fx_frag->fr_address + 8;
+#else
+ return fixP->fx_where + fixP->fx_frag->fr_address;
+#endif
}
-static void
-do_vfp_dp_sp_cvt (char * str)
+/* Under ELF we need to default _GLOBAL_OFFSET_TABLE.
+ Otherwise we have no need to default values of symbols. */
+
+symbolS *
+md_undefined_symbol (char * name ATTRIBUTE_UNUSED)
{
- skip_whitespace (str);
+#ifdef OBJ_ELF
+ if (name[0] == '_' && name[1] == 'G'
+ && streq (name, GLOBAL_OFFSET_TABLE_NAME))
+ {
+ if (!GOT_symbol)
+ {
+ if (symbol_find (name))
+ as_bad ("GOT already in the symbol table");
- if (vfp_dp_reg_required_here (&str, VFP_REG_Dd) == FAIL)
- return;
+ GOT_symbol = symbol_new (name, undefined_section,
+ (valueT) 0, & zero_address_frag);
+ }
- if (skip_past_comma (&str) == FAIL
- || vfp_sp_reg_required_here (&str, VFP_REG_Sm) == FAIL)
- {
- if (! inst.error)
- inst.error = BAD_ARGS;
- return;
+ return GOT_symbol;
}
+#endif
- end_of_line (str);
+ return 0;
}
-static void
-do_vfp_sp_dp_cvt (char * str)
+/* Subroutine of md_apply_fix3. Check to see if an immediate can be
+ computed as two separate immediate values, added together. We
+ already know that this value cannot be computed by just one ARM
+ instruction. */
+
+static unsigned int
+validate_immediate_twopart (unsigned int val,
+ unsigned int * highpart)
{
- skip_whitespace (str);
+ unsigned int a;
+ unsigned int i;
- if (vfp_sp_reg_required_here (&str, VFP_REG_Sd) == FAIL)
- return;
+ for (i = 0; i < 32; i += 2)
+ if (((a = rotate_left (val, i)) & 0xff) != 0)
+ {
+ if (a & 0xff00)
+ {
+ if (a & ~ 0xffff)
+ continue;
+ * highpart = (a >> 8) | ((i + 24) << 7);
+ }
+ else if (a & 0xff0000)
+ {
+ if (a & 0xff000000)
+ continue;
+ * highpart = (a >> 16) | ((i + 16) << 7);
+ }
+ else
+ {
+ assert (a & 0xff000000);
+ * highpart = (a >> 24) | ((i + 8) << 7);
+ }
- if (skip_past_comma (&str) == FAIL
- || vfp_dp_reg_required_here (&str, VFP_REG_Dm) == FAIL)
- {
- if (! inst.error)
- inst.error = BAD_ARGS;
- return;
- }
+ return (a & 0xff) | (i << 7);
+ }
- end_of_line (str);
+ return FAIL;
}
-/* Thumb specific routines. */
+static int
+validate_offset_imm (unsigned int val, int hwse)
+{
+ if ((hwse && val > 255) || val > 4095)
+ return FAIL;
+ return val;
+}
-/* Parse an add or subtract instruction, SUBTRACT is non-zero if the opcode
- was SUB. */
+/* Subroutine of md_apply_fix3. Do those data_ops which can take a
+ negative immediate constant by altering the instruction. A bit of
+ a hack really.
+ MOV <-> MVN
+ AND <-> BIC
+ ADC <-> SBC
+ by inverting the second operand, and
+ ADD <-> SUB
+ CMP <-> CMN
+ by negating the second operand. */
-static void
-thumb_add_sub (char * str, int subtract)
+static int
+negate_data_op (unsigned long * instruction,
+ unsigned long value)
{
- int Rd, Rs, Rn = FAIL;
+ int op, new_inst;
+ unsigned long negated, inverted;
- skip_whitespace (str);
+ negated = encode_arm_immediate (-value);
+ inverted = encode_arm_immediate (~value);
- if ((Rd = thumb_reg (&str, THUMB_REG_ANY)) == FAIL
- || skip_past_comma (&str) == FAIL)
+ op = (*instruction >> DATA_OP_SHIFT) & 0xf;
+ switch (op)
{
- if (! inst.error)
- inst.error = BAD_ARGS;
- return;
- }
+ /* First negates. */
+ case OPCODE_SUB: /* ADD <-> SUB */
+ new_inst = OPCODE_ADD;
+ value = negated;
+ break;
- if (is_immediate_prefix (*str))
- {
- Rs = Rd;
- str++;
- if (my_get_expression (&inst.reloc.exp, &str))
- return;
- }
- else
- {
- if ((Rs = thumb_reg (&str, THUMB_REG_ANY)) == FAIL)
- return;
+ case OPCODE_ADD:
+ new_inst = OPCODE_SUB;
+ value = negated;
+ break;
- if (skip_past_comma (&str) == FAIL)
- {
- /* Two operand format, shuffle the registers
- and pretend there are 3. */
- Rn = Rs;
- Rs = Rd;
- }
- else if (is_immediate_prefix (*str))
- {
- str++;
- if (my_get_expression (&inst.reloc.exp, &str))
- return;
- }
- else if ((Rn = thumb_reg (&str, THUMB_REG_ANY)) == FAIL)
- return;
- }
+ case OPCODE_CMP: /* CMP <-> CMN */
+ new_inst = OPCODE_CMN;
+ value = negated;
+ break;
- /* We now have Rd and Rs set to registers, and Rn set to a register or FAIL;
- for the latter case, EXPR contains the immediate that was found. */
- if (Rn != FAIL)
- {
- /* All register format. */
- if (Rd > 7 || Rs > 7 || Rn > 7)
- {
- if (Rs != Rd)
- {
- inst.error = _("dest and source1 must be the same register");
- return;
- }
+ case OPCODE_CMN:
+ new_inst = OPCODE_CMP;
+ value = negated;
+ break;
- /* Can't do this for SUB. */
- if (subtract)
- {
- inst.error = _("subtract valid only on lo regs");
- return;
- }
+ /* Now Inverted ops. */
+ case OPCODE_MOV: /* MOV <-> MVN */
+ new_inst = OPCODE_MVN;
+ value = inverted;
+ break;
- inst.instruction = (T_OPCODE_ADD_HI
- | (Rd > 7 ? THUMB_H1 : 0)
- | (Rn > 7 ? THUMB_H2 : 0));
- inst.instruction |= (Rd & 7) | ((Rn & 7) << 3);
- }
- else
- {
- inst.instruction = subtract ? T_OPCODE_SUB_R3 : T_OPCODE_ADD_R3;
- inst.instruction |= Rd | (Rs << 3) | (Rn << 6);
- }
- }
- else
- {
- /* Immediate expression, now things start to get nasty. */
+ case OPCODE_MVN:
+ new_inst = OPCODE_MOV;
+ value = inverted;
+ break;
- /* First deal with HI regs, only very restricted cases allowed:
- Adjusting SP, and using PC or SP to get an address. */
- if ((Rd > 7 && (Rd != REG_SP || Rs != REG_SP))
- || (Rs > 7 && Rs != REG_SP && Rs != REG_PC))
- {
- inst.error = _("invalid Hi register with immediate");
- return;
- }
+ case OPCODE_AND: /* AND <-> BIC */
+ new_inst = OPCODE_BIC;
+ value = inverted;
+ break;
- if (inst.reloc.exp.X_op != O_constant)
- {
- /* Value isn't known yet, all we can do is store all the fragments
- we know about in the instruction and let the reloc hacking
- work it all out. */
- inst.instruction = (subtract ? 0x8000 : 0) | (Rd << 4) | Rs;
- inst.reloc.type = BFD_RELOC_ARM_THUMB_ADD;
- }
- else
- {
- int offset = inst.reloc.exp.X_add_number;
+ case OPCODE_BIC:
+ new_inst = OPCODE_AND;
+ value = inverted;
+ break;
- if (subtract)
- offset = - offset;
-
- if (offset < 0)
- {
- offset = - offset;
- subtract = 1;
+ case OPCODE_ADC: /* ADC <-> SBC */
+ new_inst = OPCODE_SBC;
+ value = inverted;
+ break;
- /* Quick check, in case offset is MIN_INT. */
- if (offset < 0)
- {
- inst.error = _("immediate value out of range");
- return;
- }
- }
- /* Note - you cannot convert a subtract of 0 into an
- add of 0 because the carry flag is set differently. */
- else if (offset > 0)
- subtract = 0;
+ case OPCODE_SBC:
+ new_inst = OPCODE_ADC;
+ value = inverted;
+ break;
- if (Rd == REG_SP)
- {
- if (offset & ~0x1fc)
- {
- inst.error = _("invalid immediate value for stack adjust");
- return;
- }
- inst.instruction = subtract ? T_OPCODE_SUB_ST : T_OPCODE_ADD_ST;
- inst.instruction |= offset >> 2;
- }
- else if (Rs == REG_PC || Rs == REG_SP)
- {
- if (subtract
- || (offset & ~0x3fc))
- {
- inst.error = _("invalid immediate for address calculation");
- return;
- }
- inst.instruction = (Rs == REG_PC ? T_OPCODE_ADD_PC
- : T_OPCODE_ADD_SP);
- inst.instruction |= (Rd << 8) | (offset >> 2);
- }
- else if (Rs == Rd)
- {
- if (offset & ~0xff)
- {
- inst.error = _("immediate value out of range");
- return;
- }
- inst.instruction = subtract ? T_OPCODE_SUB_I8 : T_OPCODE_ADD_I8;
- inst.instruction |= (Rd << 8) | offset;
- }
- else
- {
- if (offset & ~0x7)
- {
- inst.error = _("immediate value out of range");
- return;
- }
- inst.instruction = subtract ? T_OPCODE_SUB_I3 : T_OPCODE_ADD_I3;
- inst.instruction |= Rd | (Rs << 3) | (offset << 6);
- }
- }
+ /* We cannot do anything. */
+ default:
+ return FAIL;
}
- end_of_line (str);
+ if (value == (unsigned) FAIL)
+ return FAIL;
+
+ *instruction &= OPCODE_MASK;
+ *instruction |= new_inst << DATA_OP_SHIFT;
+ return value;
}
-static void
-thumb_shift (char * str, int shift)
-{
- int Rd, Rs, Rn = FAIL;
+void
+md_apply_fix3 (fixS * fixP,
+ valueT * valP,
+ segT seg)
+{
+ offsetT value = * valP;
+ offsetT newval;
+ unsigned int newimm;
+ unsigned long temp;
+ int sign;
+ char * buf = fixP->fx_where + fixP->fx_frag->fr_literal;
+ /* The double cast here prevents warnings about converting a pointer
+ to an integer of different size. We know the value is 0, 1, or 2. */
+ int fix_is_thumb = (int) (size_t) fixP->tc_fix_data;
- skip_whitespace (str);
+ assert (fixP->fx_r_type <= BFD_RELOC_UNUSED);
- if ((Rd = thumb_reg (&str, THUMB_REG_LO)) == FAIL
- || skip_past_comma (&str) == FAIL)
- {
- if (! inst.error)
- inst.error = BAD_ARGS;
- return;
- }
+ /* Note whether this will delete the relocation. */
+ if (fixP->fx_addsy == 0 && !fixP->fx_pcrel)
+ fixP->fx_done = 1;
- if (is_immediate_prefix (*str))
- {
- /* Two operand immediate format, set Rs to Rd. */
- Rs = Rd;
- str ++;
- if (my_get_expression (&inst.reloc.exp, &str))
- return;
- }
- else
+ /* If this symbol is in a different section then we need to leave it for
+ the linker to deal with. Unfortunately, md_pcrel_from can't tell,
+ so we have to undo its effects here. */
+ if (fixP->fx_pcrel)
{
- if ((Rs = thumb_reg (&str, THUMB_REG_LO)) == FAIL)
- return;
-
- if (skip_past_comma (&str) == FAIL)
- {
- /* Two operand format, shuffle the registers
- and pretend there are 3. */
- Rn = Rs;
- Rs = Rd;
- }
- else if (is_immediate_prefix (*str))
- {
- str++;
- if (my_get_expression (&inst.reloc.exp, &str))
- return;
- }
- else if ((Rn = thumb_reg (&str, THUMB_REG_LO)) == FAIL)
- return;
+ if (fixP->fx_addsy != NULL
+ && S_IS_DEFINED (fixP->fx_addsy)
+ && S_GET_SEGMENT (fixP->fx_addsy) != seg)
+ value += md_pcrel_from (fixP);
}
- /* We now have Rd and Rs set to registers, and Rn set to a register or FAIL;
- for the latter case, EXPR contains the immediate that was found. */
+ /* Remember value for emit_reloc. */
+ fixP->fx_addnumber = value;
- if (Rn != FAIL)
+ switch (fixP->fx_r_type)
{
- if (Rs != Rd)
- {
- inst.error = _("source1 and dest must be same register");
- return;
- }
+ case BFD_RELOC_NONE:
+ /* This will need to go in the object file. */
+ fixP->fx_done = 0;
+ break;
- switch (shift)
- {
- case THUMB_ASR: inst.instruction = T_OPCODE_ASR_R; break;
- case THUMB_LSL: inst.instruction = T_OPCODE_LSL_R; break;
- case THUMB_LSR: inst.instruction = T_OPCODE_LSR_R; break;
- }
+ case BFD_RELOC_ARM_IMMEDIATE:
+ /* We claim that this fixup has been processed here,
+ even if in fact we generate an error because we do
+ not have a reloc for it, so tc_gen_reloc will reject it. */
+ fixP->fx_done = 1;
- inst.instruction |= Rd | (Rn << 3);
- }
- else
- {
- switch (shift)
+ if (fixP->fx_addsy
+ && ! S_IS_DEFINED (fixP->fx_addsy))
{
- case THUMB_ASR: inst.instruction = T_OPCODE_ASR_I; break;
- case THUMB_LSL: inst.instruction = T_OPCODE_LSL_I; break;
- case THUMB_LSR: inst.instruction = T_OPCODE_LSR_I; break;
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("undefined symbol %s used as an immediate value"),
+ S_GET_NAME (fixP->fx_addsy));
+ break;
}
- if (inst.reloc.exp.X_op != O_constant)
+ newimm = encode_arm_immediate (value);
+ temp = md_chars_to_number (buf, INSN_SIZE);
+
+ /* If the instruction will fail, see if we can fix things up by
+ changing the opcode. */
+ if (newimm == (unsigned int) FAIL
+ && (newimm = negate_data_op (&temp, value)) == (unsigned int) FAIL)
{
- /* Value isn't known yet, create a dummy reloc and let reloc
- hacking fix it up. */
- inst.reloc.type = BFD_RELOC_ARM_THUMB_SHIFT;
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("invalid constant (%lx) after fixup"),
+ (unsigned long) value);
+ break;
}
- else
- {
- unsigned shift_value = inst.reloc.exp.X_add_number;
-
- if (shift_value > 32 || (shift_value == 32 && shift == THUMB_LSL))
- {
- inst.error = _("invalid immediate for shift");
- return;
- }
- /* Shifts of zero are handled by converting to LSL. */
- if (shift_value == 0)
- inst.instruction = T_OPCODE_LSL_I;
+ newimm |= (temp & 0xfffff000);
+ md_number_to_chars (buf, (valueT) newimm, INSN_SIZE);
+ break;
- /* Shifts of 32 are encoded as a shift of zero. */
- if (shift_value == 32)
- shift_value = 0;
+ case BFD_RELOC_ARM_ADRL_IMMEDIATE:
+ {
+ unsigned int highpart = 0;
+ unsigned int newinsn = 0xe1a00000; /* nop. */
- inst.instruction |= shift_value << 6;
- }
+ newimm = encode_arm_immediate (value);
+ temp = md_chars_to_number (buf, INSN_SIZE);
- inst.instruction |= Rd | (Rs << 3);
- }
+ /* If the instruction will fail, see if we can fix things up by
+ changing the opcode. */
+ if (newimm == (unsigned int) FAIL
+ && (newimm = negate_data_op (& temp, value)) == (unsigned int) FAIL)
+ {
+ /* No ? OK - try using two ADD instructions to generate
+ the value. */
+ newimm = validate_immediate_twopart (value, & highpart);
- end_of_line (str);
-}
+ /* Yes - then make sure that the second instruction is
+ also an add. */
+ if (newimm != (unsigned int) FAIL)
+ newinsn = temp;
+ /* Still No ? Try using a negated value. */
+ else if ((newimm = validate_immediate_twopart (- value, & highpart)) != (unsigned int) FAIL)
+ temp = newinsn = (temp & OPCODE_MASK) | OPCODE_SUB << DATA_OP_SHIFT;
+ /* Otherwise - give up. */
+ else
+ {
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("unable to compute ADRL instructions for PC offset of 0x%lx"),
+ (long) value);
+ break;
+ }
-static void
-thumb_load_store (char * str, int load_store, int size)
-{
- int Rd, Rb, Ro = FAIL;
+ /* Replace the first operand in the 2nd instruction (which
+ is the PC) with the destination register. We have
+ already added in the PC in the first instruction and we
+ do not want to do it again. */
+ newinsn &= ~ 0xf0000;
+ newinsn |= ((newinsn & 0x0f000) << 4);
+ }
- skip_whitespace (str);
+ newimm |= (temp & 0xfffff000);
+ md_number_to_chars (buf, (valueT) newimm, INSN_SIZE);
- if ((Rd = thumb_reg (&str, THUMB_REG_LO)) == FAIL
- || skip_past_comma (&str) == FAIL)
- {
- if (! inst.error)
- inst.error = BAD_ARGS;
- return;
- }
+ highpart |= (newinsn & 0xfffff000);
+ md_number_to_chars (buf + INSN_SIZE, (valueT) highpart, INSN_SIZE);
+ }
+ break;
- if (*str == '[')
- {
- str++;
- if ((Rb = thumb_reg (&str, THUMB_REG_ANY)) == FAIL)
- return;
+ case BFD_RELOC_ARM_OFFSET_IMM:
+ case BFD_RELOC_ARM_LITERAL:
+ sign = value >= 0;
- if (skip_past_comma (&str) != FAIL)
- {
- if (is_immediate_prefix (*str))
- {
- str++;
- if (my_get_expression (&inst.reloc.exp, &str))
- return;
- }
- else if ((Ro = thumb_reg (&str, THUMB_REG_LO)) == FAIL)
- return;
- }
- else
- {
- inst.reloc.exp.X_op = O_constant;
- inst.reloc.exp.X_add_number = 0;
- }
+ if (value < 0)
+ value = - value;
- if (*str != ']')
- {
- inst.error = _("expected ']'");
- return;
- }
- str++;
- }
- else if (*str == '=')
- {
- if (load_store != THUMB_LOAD)
+ if (validate_offset_imm (value, 0) == FAIL)
{
- inst.error = _("invalid pseudo operation");
- return;
+ if (fixP->fx_r_type == BFD_RELOC_ARM_LITERAL)
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("invalid literal constant: pool needs to be closer"));
+ else
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("bad immediate value for offset (%ld)"),
+ (long) value);
+ break;
}
- /* Parse an "ldr Rd, =expr" instruction; this is another pseudo op. */
- str++;
-
- skip_whitespace (str);
-
- if (my_get_expression (& inst.reloc.exp, & str))
- return;
+ newval = md_chars_to_number (buf, INSN_SIZE);
+ newval &= 0xff7ff000;
+ newval |= value | (sign ? INDEX_UP : 0);
+ md_number_to_chars (buf, newval, INSN_SIZE);
+ break;
- end_of_line (str);
+ case BFD_RELOC_ARM_OFFSET_IMM8:
+ case BFD_RELOC_ARM_HWLITERAL:
+ sign = value >= 0;
- if ( inst.reloc.exp.X_op != O_constant
- && inst.reloc.exp.X_op != O_symbol)
- {
- inst.error = "Constant expression expected";
- return;
- }
+ if (value < 0)
+ value = - value;
- if (inst.reloc.exp.X_op == O_constant
- && ((inst.reloc.exp.X_add_number & ~0xFF) == 0))
+ if (validate_offset_imm (value, 1) == FAIL)
{
- /* This can be done with a mov instruction. */
-
- inst.instruction = T_OPCODE_MOV_I8 | (Rd << 8);
- inst.instruction |= inst.reloc.exp.X_add_number;
- return;
+ if (fixP->fx_r_type == BFD_RELOC_ARM_HWLITERAL)
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("invalid literal constant: pool needs to be closer"));
+ else
+ as_bad (_("bad immediate value for half-word offset (%ld)"),
+ (long) value);
+ break;
}
- /* Insert into literal pool. */
- if (add_to_lit_pool () == FAIL)
- {
- if (!inst.error)
- inst.error = "literal pool insertion failed";
- return;
- }
+ newval = md_chars_to_number (buf, INSN_SIZE);
+ newval &= 0xff7ff0f0;
+ newval |= ((value >> 4) << 8) | (value & 0xf) | (sign ? INDEX_UP : 0);
+ md_number_to_chars (buf, newval, INSN_SIZE);
+ break;
- inst.reloc.type = BFD_RELOC_ARM_THUMB_OFFSET;
- inst.reloc.pc_rel = 1;
- inst.instruction = T_OPCODE_LDR_PC | (Rd << 8);
- /* Adjust ARM pipeline offset to Thumb. */
- inst.reloc.exp.X_add_number += 4;
+ case BFD_RELOC_ARM_T32_OFFSET_U8:
+ if (value < 0 || value > 1020 || value % 4 != 0)
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("bad immediate value for offset (%ld)"), (long) value);
+ value /= 4;
- return;
- }
- else
- {
- if (my_get_expression (&inst.reloc.exp, &str))
- return;
+ newval = md_chars_to_number (buf+2, THUMB_SIZE);
+ newval &= 0xff00;
+ newval |= value;
+ md_number_to_chars (buf+2, newval, THUMB_SIZE);
+ break;
- inst.instruction = T_OPCODE_LDR_PC | (Rd << 8);
- inst.reloc.pc_rel = 1;
- inst.reloc.exp.X_add_number -= 4; /* Pipeline offset. */
- inst.reloc.type = BFD_RELOC_ARM_THUMB_OFFSET;
- end_of_line (str);
- return;
- }
+ case BFD_RELOC_ARM_T32_OFFSET_IMM:
+ /* This is a complicated relocation used for all varieties of Thumb32
+ load/store instruction with immediate offset:
+
+ 1110 100P u1WL NNNN XXXX YYYY iiii iiii - +/-(U) pre/post(P) 8-bit,
+ *4, optional writeback(W)
+ (doubleword load/store)
+
+ 1111 100S uTTL 1111 XXXX iiii iiii iiii - +/-(U) 12-bit PC-rel
+ 1111 100S 0TTL NNNN XXXX 1Pu1 iiii iiii - +/-(U) pre/post(P) 8-bit
+ 1111 100S 0TTL NNNN XXXX 1110 iiii iiii - positive 8-bit (T instruction)
+ 1111 100S 1TTL NNNN XXXX iiii iiii iiii - positive 12-bit
+ 1111 100S 0TTL NNNN XXXX 1100 iiii iiii - negative 8-bit
+
+ Uppercase letters indicate bits that are already encoded at
+ this point. Lowercase letters are our problem. For the
+ second block of instructions, the secondary opcode nybble
+ (bits 8..11) is present, and bit 23 is zero, even if this is
+ a PC-relative operation. */
+ newval = md_chars_to_number (buf, THUMB_SIZE);
+ newval <<= 16;
+ newval |= md_chars_to_number (buf+THUMB_SIZE, THUMB_SIZE);
- if (Rb == REG_PC || Rb == REG_SP)
- {
- if (size != THUMB_WORD)
+ if ((newval & 0xf0000000) == 0xe0000000)
{
- inst.error = _("byte or halfword not valid for base register");
- return;
+ /* Doubleword load/store: 8-bit offset, scaled by 4. */
+ if (value >= 0)
+ newval |= (1 << 23);
+ else
+ value = -value;
+ if (value % 4 != 0)
+ {
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("offset not a multiple of 4"));
+ break;
+ }
+ value /= 4;
+ if (value >= 0xff)
+ {
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("offset out of range"));
+ break;
+ }
+ newval &= ~0xff;
}
- else if (Rb == REG_PC && load_store != THUMB_LOAD)
+ else if ((newval & 0x000f0000) == 0x000f0000)
{
- inst.error = _("r15 based store not allowed");
- return;
+ /* PC-relative, 12-bit offset. */
+ if (value >= 0)
+ newval |= (1 << 23);
+ else
+ value = -value;
+ if (value >= 0xfff)
+ {
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("offset out of range"));
+ break;
+ }
+ newval &= ~0xfff;
}
- else if (Ro != FAIL)
+ else if ((newval & 0x00000100) == 0x00000100)
{
- inst.error = _("invalid base register for register offset");
- return;
+ /* Writeback: 8-bit, +/- offset. */
+ if (value >= 0)
+ newval |= (1 << 9);
+ else
+ value = -value;
+ if (value >= 0xff)
+ {
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("offset out of range"));
+ break;
+ }
+ newval &= ~0xff;
}
-
- if (Rb == REG_PC)
- inst.instruction = T_OPCODE_LDR_PC;
- else if (load_store == THUMB_LOAD)
- inst.instruction = T_OPCODE_LDR_SP;
- else
- inst.instruction = T_OPCODE_STR_SP;
-
- inst.instruction |= Rd << 8;
- if (inst.reloc.exp.X_op == O_constant)
+ else if ((newval & 0x00000f00) == 0x00000e00)
{
- unsigned offset = inst.reloc.exp.X_add_number;
-
- if (offset & ~0x3fc)
+ /* T-instruction: positive 8-bit offset. */
+ if (value < 0 || value >= 0xff)
{
- inst.error = _("invalid offset");
- return;
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("offset out of range"));
+ break;
}
-
- inst.instruction |= offset >> 2;
+ newval &= ~0xff;
+ newval |= value;
}
else
- inst.reloc.type = BFD_RELOC_ARM_THUMB_OFFSET;
- }
- else if (Rb > 7)
- {
- inst.error = _("invalid base register in load/store");
- return;
- }
- else if (Ro == FAIL)
- {
- /* Immediate offset. */
- if (size == THUMB_WORD)
- inst.instruction = (load_store == THUMB_LOAD
- ? T_OPCODE_LDR_IW : T_OPCODE_STR_IW);
- else if (size == THUMB_HALFWORD)
- inst.instruction = (load_store == THUMB_LOAD
- ? T_OPCODE_LDR_IH : T_OPCODE_STR_IH);
- else
- inst.instruction = (load_store == THUMB_LOAD
- ? T_OPCODE_LDR_IB : T_OPCODE_STR_IB);
-
- inst.instruction |= Rd | (Rb << 3);
-
- if (inst.reloc.exp.X_op == O_constant)
{
- unsigned offset = inst.reloc.exp.X_add_number;
-
- if (offset & ~(0x1f << size))
+ /* Positive 12-bit or negative 8-bit offset. */
+ int limit;
+ if (value >= 0)
{
- inst.error = _("invalid offset");
- return;
+ newval |= (1 << 23);
+ limit = 0xfff;
+ }
+ else
+ {
+ value = -value;
+ limit = 0xff;
+ }
+ if (value > limit)
+ {
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("offset out of range"));
+ break;
}
- inst.instruction |= (offset >> size) << 6;
+ newval &= ~limit;
}
- else
- inst.reloc.type = BFD_RELOC_ARM_THUMB_OFFSET;
- }
- else
- {
- /* Register offset. */
- if (size == THUMB_WORD)
- inst.instruction = (load_store == THUMB_LOAD
- ? T_OPCODE_LDR_RW : T_OPCODE_STR_RW);
- else if (size == THUMB_HALFWORD)
- inst.instruction = (load_store == THUMB_LOAD
- ? T_OPCODE_LDR_RH : T_OPCODE_STR_RH);
- else
- inst.instruction = (load_store == THUMB_LOAD
- ? T_OPCODE_LDR_RB : T_OPCODE_STR_RB);
- inst.instruction |= Rd | (Rb << 3) | (Ro << 6);
- }
-
- end_of_line (str);
-}
-
-/* A register must be given at this point.
+ newval |= value;
+ md_number_to_chars (buf, (newval >> 16) & 0xffff, THUMB_SIZE);
+ md_number_to_chars (buf + THUMB_SIZE, newval & 0xffff, THUMB_SIZE);
+ break;
- Shift is the place to put it in inst.instruction.
+ case BFD_RELOC_ARM_SHIFT_IMM:
+ newval = md_chars_to_number (buf, INSN_SIZE);
+ if (((unsigned long) value) > 32
+ || (value == 32
+ && (((newval & 0x60) == 0) || (newval & 0x60) == 0x60)))
+ {
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("shift expression is too large"));
+ break;
+ }
- Restores input start point on err.
- Returns the reg#, or FAIL. */
+ if (value == 0)
+ /* Shifts of zero must be done as lsl. */
+ newval &= ~0x60;
+ else if (value == 32)
+ value = 0;
+ newval &= 0xfffff07f;
+ newval |= (value & 0x1f) << 7;
+ md_number_to_chars (buf, newval, INSN_SIZE);
+ break;
-static int
-mav_reg_required_here (char ** str, int shift, enum arm_reg_type regtype)
-{
- int reg;
- char *start = *str;
+ case BFD_RELOC_ARM_T32_IMMEDIATE:
+ /* We claim that this fixup has been processed here,
+ even if in fact we generate an error because we do
+ not have a reloc for it, so tc_gen_reloc will reject it. */
+ fixP->fx_done = 1;
- if ((reg = arm_reg_parse (str, all_reg_maps[regtype].htab)) != FAIL)
- {
- if (shift >= 0)
- inst.instruction |= reg << shift;
+ if (fixP->fx_addsy
+ && ! S_IS_DEFINED (fixP->fx_addsy))
+ {
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("undefined symbol %s used as an immediate value"),
+ S_GET_NAME (fixP->fx_addsy));
+ break;
+ }
- return reg;
- }
+ newval = md_chars_to_number (buf, THUMB_SIZE);
+ newval <<= 16;
+ newval |= md_chars_to_number (buf+2, THUMB_SIZE);
- /* Restore the start point. */
- *str = start;
+ newimm = encode_thumb32_immediate (value);
- /* Try generic coprocessor name if applicable. */
- if (regtype == REG_TYPE_MVF ||
- regtype == REG_TYPE_MVD ||
- regtype == REG_TYPE_MVFX ||
- regtype == REG_TYPE_MVDX)
- {
- if ((reg = arm_reg_parse (str, all_reg_maps[REG_TYPE_CN].htab)) != FAIL)
+ /* FUTURE: Implement analogue of negate_data_op for T32. */
+ if (newimm == (unsigned int)FAIL)
{
- if (shift >= 0)
- inst.instruction |= reg << shift;
-
- return reg;
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("invalid constant (%lx) after fixup"),
+ (unsigned long) value);
+ break;
}
- /* Restore the start point. */
- *str = start;
- }
-
- /* In the few cases where we might be able to accept something else
- this error can be overridden. */
- inst.error = _(all_reg_maps[regtype].expected);
+ newval &= 0xfbff8f00;
+ newval |= (newimm & 0x800) << 15;
+ newval |= (newimm & 0x700) << 4;
+ newval |= (newimm & 0x0ff);
- return FAIL;
-}
-
-/* Cirrus Maverick Instructions. */
+ md_number_to_chars (buf, (valueT) ((newval >> 16) & 0xffff), THUMB_SIZE);
+ md_number_to_chars (buf+2, (valueT) (newval & 0xffff), THUMB_SIZE);
+ break;
-/* Isnsn like "foo X,Y". */
+ case BFD_RELOC_ARM_SMI:
+ if (((unsigned long) value) > 0xffff)
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("invalid smi expression"));
+ newval = md_chars_to_number (buf, INSN_SIZE) & 0xfff000f0;
+ newval |= (value & 0xf) | ((value & 0xfff0) << 4);
+ md_number_to_chars (buf, newval, INSN_SIZE);
+ break;
-static void
-do_mav_binops (char * str,
- int mode,
- enum arm_reg_type reg0,
- enum arm_reg_type reg1)
-{
- int shift0, shift1;
+ case BFD_RELOC_ARM_SWI:
+ if (fix_is_thumb)
+ {
+ if (((unsigned long) value) > 0xff)
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("invalid swi expression"));
+ newval = md_chars_to_number (buf, THUMB_SIZE) & 0xff00;
+ newval |= value;
+ md_number_to_chars (buf, newval, THUMB_SIZE);
+ }
+ else
+ {
+ if (((unsigned long) value) > 0x00ffffff)
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("invalid swi expression"));
+ newval = md_chars_to_number (buf, INSN_SIZE) & 0xff000000;
+ newval |= value;
+ md_number_to_chars (buf, newval, INSN_SIZE);
+ }
+ break;
- shift0 = mode & 0xff;
- shift1 = (mode >> 8) & 0xff;
+ case BFD_RELOC_ARM_MULTI:
+ if (((unsigned long) value) > 0xffff)
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("invalid expression in load/store multiple"));
+ newval = value | md_chars_to_number (buf, INSN_SIZE);
+ md_number_to_chars (buf, newval, INSN_SIZE);
+ break;
- skip_whitespace (str);
+ case BFD_RELOC_ARM_PCREL_BRANCH:
+ newval = md_chars_to_number (buf, INSN_SIZE);
- if (mav_reg_required_here (&str, shift0, reg0) == FAIL
- || skip_past_comma (&str) == FAIL
- || mav_reg_required_here (&str, shift1, reg1) == FAIL)
- {
- if (!inst.error)
- inst.error = BAD_ARGS;
- }
- else
- end_of_line (str);
-}
+ /* Sign-extend a 24-bit number. */
+#define SEXT24(x) ((((x) & 0xffffff) ^ (~ 0x7fffff)) + 0x800000)
-/* Isnsn like "foo X,Y,Z". */
+#ifdef OBJ_ELF
+ value = fixP->fx_offset;
+#endif
-static void
-do_mav_triple (char * str,
- int mode,
- enum arm_reg_type reg0,
- enum arm_reg_type reg1,
- enum arm_reg_type reg2)
-{
- int shift0, shift1, shift2;
+ /* We are going to store value (shifted right by two) in the
+ instruction, in a 24 bit, signed field Thus we need to check
+ that none of the top 8 bits of the shifted value (top 7 bits of
+ the unshifted, unsigned value) are set, or that they are all set. */
+ if ((value & ~ ((offsetT) 0x1ffffff)) != 0
+ && ((value & ~ ((offsetT) 0x1ffffff)) != ~ ((offsetT) 0x1ffffff)))
+ {
+#ifdef OBJ_ELF
+ /* Normally we would be stuck at this point, since we cannot store
+ the absolute address that is the destination of the branch in the
+ 24 bits of the branch instruction. If however, we happen to know
+ that the destination of the branch is in the same section as the
+ branch instruction itself, then we can compute the relocation for
+ ourselves and not have to bother the linker with it.
- shift0 = mode & 0xff;
- shift1 = (mode >> 8) & 0xff;
- shift2 = (mode >> 16) & 0xff;
+ FIXME: The test for OBJ_ELF is only here because I have not
+ worked out how to do this for OBJ_COFF. */
+ if (fixP->fx_addsy != NULL
+ && S_IS_DEFINED (fixP->fx_addsy)
+ && S_GET_SEGMENT (fixP->fx_addsy) == seg)
+ {
+ /* Get pc relative value to go into the branch. */
+ value = * valP;
- skip_whitespace (str);
+ /* Permit a backward branch provided that enough bits
+ are set. Allow a forwards branch, provided that
+ enough bits are clear. */
+ if ( (value & ~ ((offsetT) 0x1ffffff)) == ~ ((offsetT) 0x1ffffff)
+ || (value & ~ ((offsetT) 0x1ffffff)) == 0)
+ fixP->fx_done = 1;
+ }
- if (mav_reg_required_here (&str, shift0, reg0) == FAIL
- || skip_past_comma (&str) == FAIL
- || mav_reg_required_here (&str, shift1, reg1) == FAIL
- || skip_past_comma (&str) == FAIL
- || mav_reg_required_here (&str, shift2, reg2) == FAIL)
- {
- if (!inst.error)
- inst.error = BAD_ARGS;
- }
- else
- end_of_line (str);
-}
+ if (! fixP->fx_done)
+#endif
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("GAS can't handle same-section branch dest >= 0x04000000"));
+ }
-/* Wrapper functions. */
+ value >>= 2;
+ value += SEXT24 (newval);
-static void
-do_mav_binops_1a (char * str)
-{
- do_mav_binops (str, MAV_MODE1, REG_TYPE_RN, REG_TYPE_MVF);
-}
+ if ( (value & ~ ((offsetT) 0xffffff)) != 0
+ && ((value & ~ ((offsetT) 0xffffff)) != ~ ((offsetT) 0xffffff)))
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("out of range branch"));
-static void
-do_mav_binops_1b (char * str)
-{
- do_mav_binops (str, MAV_MODE1, REG_TYPE_RN, REG_TYPE_MVD);
-}
+ if (seg->use_rela_p && !fixP->fx_done)
+ {
+ /* Must unshift the value before storing it in the addend. */
+ value <<= 2;
+#ifdef OBJ_ELF
+ fixP->fx_offset = value;
+#endif
+ fixP->fx_addnumber = value;
+ newval = newval & 0xff000000;
+ }
+ else
+ newval = (value & 0x00ffffff) | (newval & 0xff000000);
+ md_number_to_chars (buf, newval, INSN_SIZE);
+ break;
-static void
-do_mav_binops_1c (char * str)
-{
- do_mav_binops (str, MAV_MODE1, REG_TYPE_RN, REG_TYPE_MVDX);
-}
+ case BFD_RELOC_ARM_PCREL_BLX:
+ {
+ offsetT hbit;
+ newval = md_chars_to_number (buf, INSN_SIZE);
-static void
-do_mav_binops_1d (char * str)
-{
- do_mav_binops (str, MAV_MODE1, REG_TYPE_MVF, REG_TYPE_MVF);
-}
+#ifdef OBJ_ELF
+ value = fixP->fx_offset;
+#endif
+ hbit = (value >> 1) & 1;
+ value = (value >> 2) & 0x00ffffff;
+ value = (value + (newval & 0x00ffffff)) & 0x00ffffff;
-static void
-do_mav_binops_1e (char * str)
-{
- do_mav_binops (str, MAV_MODE1, REG_TYPE_MVD, REG_TYPE_MVD);
-}
+ if (seg->use_rela_p && !fixP->fx_done)
+ {
+ /* Must sign-extend and unshift the value before storing
+ it in the addend. */
+ value = SEXT24 (value);
+ value = (value << 2) | hbit;
+#ifdef OBJ_ELF
+ fixP->fx_offset = value;
+#endif
+ fixP->fx_addnumber = value;
+ newval = newval & 0xfe000000;
+ }
+ else
+ newval = value | (newval & 0xfe000000) | (hbit << 24);
+ md_number_to_chars (buf, newval, INSN_SIZE);
+ }
+ break;
-static void
-do_mav_binops_1f (char * str)
-{
- do_mav_binops (str, MAV_MODE1, REG_TYPE_MVD, REG_TYPE_MVF);
-}
+ case BFD_RELOC_THUMB_PCREL_BRANCH7: /* CZB */
+ newval = md_chars_to_number (buf, THUMB_SIZE);
+ {
+ addressT diff = ((newval & 0x00f8) >> 2) | (newval & 0x0200) >> 3;
+ /* This one does not have the offset encoded in the pattern. */
+ value = value + diff - 4;
+ /* CZB can only branch forward. */
+ if (value & ~0x7e)
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("branch out of range"));
-static void
-do_mav_binops_1g (char * str)
-{
- do_mav_binops (str, MAV_MODE1, REG_TYPE_MVF, REG_TYPE_MVD);
-}
-
-static void
-do_mav_binops_1h (char * str)
-{
- do_mav_binops (str, MAV_MODE1, REG_TYPE_MVF, REG_TYPE_MVFX);
-}
-
-static void
-do_mav_binops_1i (char * str)
-{
- do_mav_binops (str, MAV_MODE1, REG_TYPE_MVD, REG_TYPE_MVFX);
-}
+ newval &= 0xfd07;
+ if (seg->use_rela_p && !fixP->fx_done)
+ {
+#ifdef OBJ_ELF
+ fixP->fx_offset = value;
+#endif
+ fixP->fx_addnumber = value;
+ }
+ else
+ newval |= ((value & 0x2e) << 2) | ((value & 0x40) << 3);
+ }
+ md_number_to_chars (buf, newval, THUMB_SIZE);
+ break;
-static void
-do_mav_binops_1j (char * str)
-{
- do_mav_binops (str, MAV_MODE1, REG_TYPE_MVF, REG_TYPE_MVDX);
-}
+ case BFD_RELOC_THUMB_PCREL_BRANCH9: /* Conditional branch. */
+ newval = md_chars_to_number (buf, THUMB_SIZE);
+ {
+ addressT diff = (newval & 0xff) << 1;
+ if (diff & 0x100)
+ diff |= ~0xff;
-static void
-do_mav_binops_1k (char * str)
-{
- do_mav_binops (str, MAV_MODE1, REG_TYPE_MVD, REG_TYPE_MVDX);
-}
+ value += diff;
+ if ((value & ~0xff) && ((value & ~0xff) != ~0xff))
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("branch out of range"));
+ if (seg->use_rela_p && !fixP->fx_done)
+ {
+#ifdef OBJ_ELF
+ fixP->fx_offset = value;
+#endif
+ fixP->fx_addnumber = value;
+ newval = newval & 0xff00;
+ }
+ else
+ newval = (newval & 0xff00) | ((value & 0x1ff) >> 1);
+ }
+ md_number_to_chars (buf, newval, THUMB_SIZE);
+ break;
-static void
-do_mav_binops_1l (char * str)
-{
- do_mav_binops (str, MAV_MODE1, REG_TYPE_MVFX, REG_TYPE_MVF);
-}
+ case BFD_RELOC_THUMB_PCREL_BRANCH12: /* Unconditional branch. */
+ newval = md_chars_to_number (buf, THUMB_SIZE);
+ {
+ addressT diff = (newval & 0x7ff) << 1;
+ if (diff & 0x800)
+ diff |= ~0x7ff;
-static void
-do_mav_binops_1m (char * str)
-{
- do_mav_binops (str, MAV_MODE1, REG_TYPE_MVFX, REG_TYPE_MVD);
-}
+ value += diff;
+ if ((value & ~0x7ff) && ((value & ~0x7ff) != ~0x7ff))
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("branch out of range"));
+ if (seg->use_rela_p && !fixP->fx_done)
+ {
+#ifdef OBJ_ELF
+ fixP->fx_offset = value;
+#endif
+ fixP->fx_addnumber = value;
+ newval = newval & 0xf800;
+ }
+ else
+ newval = (newval & 0xf800) | ((value & 0xfff) >> 1);
+ }
+ md_number_to_chars (buf, newval, THUMB_SIZE);
+ break;
-static void
-do_mav_binops_1n (char * str)
-{
- do_mav_binops (str, MAV_MODE1, REG_TYPE_MVFX, REG_TYPE_MVFX);
-}
+ case BFD_RELOC_THUMB_PCREL_BRANCH20:
+ {
+ offsetT newval2;
+ addressT diff, S, J1, J2, lo, hi;
-static void
-do_mav_binops_1o (char * str)
-{
- do_mav_binops (str, MAV_MODE1, REG_TYPE_MVDX, REG_TYPE_MVDX);
-}
+ newval = md_chars_to_number (buf, THUMB_SIZE);
+ newval2 = md_chars_to_number (buf + THUMB_SIZE, THUMB_SIZE);
-static void
-do_mav_binops_2a (char * str)
-{
- do_mav_binops (str, MAV_MODE2, REG_TYPE_MVF, REG_TYPE_RN);
-}
+ S = !(newval & 0x0400); /* flipped - 0=negative */
+ hi = (newval & 0x003f);
+ J1 = (newval2 & 0x2000) >> 13;
+ J2 = (newval2 & 0x0800) >> 11;
+ lo = (newval2 & 0x07ff);
-static void
-do_mav_binops_2b (char * str)
-{
- do_mav_binops (str, MAV_MODE2, REG_TYPE_MVD, REG_TYPE_RN);
-}
+ diff = ((S << 20) | (J2 << 19) | (J1 << 18) | (hi << 12) | (lo << 1));
+ diff -= (1 << 20); /* sign extend */
+ value += diff;
-static void
-do_mav_binops_2c (char * str)
-{
- do_mav_binops (str, MAV_MODE2, REG_TYPE_MVDX, REG_TYPE_RN);
-}
+ if ((value & ~0x1fffff) && ((value & ~0x1fffff) != ~0x1fffff))
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("conditional branch out of range"));
-static void
-do_mav_binops_3a (char * str)
-{
- do_mav_binops (str, MAV_MODE3, REG_TYPE_MVAX, REG_TYPE_MVFX);
-}
+ newval = newval & 0xfbc0;
+ newval2 = newval2 & 0xd000;
+ if (seg->use_rela_p && !fixP->fx_done)
+ {
+#ifdef OBJ_ELF
+ fixP->fx_offset = value;
+#endif
+ fixP->fx_addnumber = value;
+ }
+ else
+ {
+ S = (value & 0x00100000) >> 20;
+ J2 = (value & 0x00080000) >> 19;
+ J1 = (value & 0x00040000) >> 18;
+ hi = (value & 0x0003f000) >> 12;
+ lo = (value & 0x00000ffe) >> 1;
+
+ newval = newval | (S << 10) | hi;
+ newval2 = newval2 | (J1 << 13) | (J2 << 11) | lo;
+ }
-static void
-do_mav_binops_3b (char * str)
-{
- do_mav_binops (str, MAV_MODE3, REG_TYPE_MVFX, REG_TYPE_MVAX);
-}
+ md_number_to_chars (buf, newval, THUMB_SIZE);
+ md_number_to_chars (buf + THUMB_SIZE, newval2, THUMB_SIZE);
+ }
+ break;
-static void
-do_mav_binops_3c (char * str)
-{
- do_mav_binops (str, MAV_MODE3, REG_TYPE_MVAX, REG_TYPE_MVDX);
-}
+ case BFD_RELOC_THUMB_PCREL_BLX:
+ case BFD_RELOC_THUMB_PCREL_BRANCH23:
+ {
+ offsetT newval2;
+ addressT diff;
-static void
-do_mav_binops_3d (char * str)
-{
- do_mav_binops (str, MAV_MODE3, REG_TYPE_MVDX, REG_TYPE_MVAX);
-}
+ newval = md_chars_to_number (buf, THUMB_SIZE);
+ newval2 = md_chars_to_number (buf + THUMB_SIZE, THUMB_SIZE);
+ diff = ((newval & 0x7ff) << 12) | ((newval2 & 0x7ff) << 1);
+ if (diff & 0x400000)
+ diff |= ~0x3fffff;
+#ifdef OBJ_ELF
+ value = fixP->fx_offset;
+#endif
+ value += diff;
-static void
-do_mav_triple_4a (char * str)
-{
- do_mav_triple (str, MAV_MODE4, REG_TYPE_MVFX, REG_TYPE_MVFX, REG_TYPE_RN);
-}
+ if ((value & ~0x3fffff) && ((value & ~0x3fffff) != ~0x3fffff))
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("branch with link out of range"));
-static void
-do_mav_triple_4b (char * str)
-{
- do_mav_triple (str, MAV_MODE4, REG_TYPE_MVDX, REG_TYPE_MVDX, REG_TYPE_RN);
-}
+ if (fixP->fx_r_type == BFD_RELOC_THUMB_PCREL_BLX)
+ /* For a BLX instruction, make sure that the relocation is rounded up
+ to a word boundary. This follows the semantics of the instruction
+ which specifies that bit 1 of the target address will come from bit
+ 1 of the base address. */
+ value = (value + 1) & ~ 1;
-static void
-do_mav_triple_5a (char * str)
-{
- do_mav_triple (str, MAV_MODE5, REG_TYPE_RN, REG_TYPE_MVF, REG_TYPE_MVF);
-}
+ if (seg->use_rela_p && !fixP->fx_done)
+ {
+#ifdef OBJ_ELF
+ fixP->fx_offset = value;
+#endif
+ fixP->fx_addnumber = value;
+ newval = newval & 0xf800;
+ newval2 = newval2 & 0xf800;
+ }
+ else
+ {
+ newval = (newval & 0xf800) | ((value & 0x7fffff) >> 12);
+ newval2 = (newval2 & 0xf800) | ((value & 0xfff) >> 1);
+ }
+ md_number_to_chars (buf, newval, THUMB_SIZE);
+ md_number_to_chars (buf + THUMB_SIZE, newval2, THUMB_SIZE);
+ }
+ break;
-static void
-do_mav_triple_5b (char * str)
-{
- do_mav_triple (str, MAV_MODE5, REG_TYPE_RN, REG_TYPE_MVD, REG_TYPE_MVD);
-}
+ case BFD_RELOC_8:
+ if (seg->use_rela_p && !fixP->fx_done)
+ break;
+ if (fixP->fx_done || fixP->fx_pcrel)
+ md_number_to_chars (buf, value, 1);
+#ifdef OBJ_ELF
+ else
+ {
+ value = fixP->fx_offset;
+ md_number_to_chars (buf, value, 1);
+ }
+#endif
+ break;
-static void
-do_mav_triple_5c (char * str)
-{
- do_mav_triple (str, MAV_MODE5, REG_TYPE_RN, REG_TYPE_MVFX, REG_TYPE_MVFX);
-}
+ case BFD_RELOC_THUMB_PCREL_BRANCH25:
+ {
+ offsetT newval2;
+ addressT diff, S, I1, I2, lo, hi;
-static void
-do_mav_triple_5d (char * str)
-{
- do_mav_triple (str, MAV_MODE5, REG_TYPE_RN, REG_TYPE_MVDX, REG_TYPE_MVDX);
-}
+ newval = md_chars_to_number (buf, THUMB_SIZE);
+ newval2 = md_chars_to_number (buf + THUMB_SIZE, THUMB_SIZE);
-static void
-do_mav_triple_5e (char * str)
-{
- do_mav_triple (str, MAV_MODE5, REG_TYPE_MVF, REG_TYPE_MVF, REG_TYPE_MVF);
-}
+ S = (newval & 0x0400) >> 10;
+ hi = (newval & 0x03ff);
+ I1 = (newval2 & 0x2000) >> 13;
+ I2 = (newval2 & 0x0800) >> 11;
+ lo = (newval2 & 0x07ff);
-static void
-do_mav_triple_5f (char * str)
-{
- do_mav_triple (str, MAV_MODE5, REG_TYPE_MVD, REG_TYPE_MVD, REG_TYPE_MVD);
-}
+ I1 = !(I1 ^ S);
+ I2 = !(I2 ^ S);
+ S = !S;
-static void
-do_mav_triple_5g (char * str)
-{
- do_mav_triple (str, MAV_MODE5, REG_TYPE_MVFX, REG_TYPE_MVFX, REG_TYPE_MVFX);
-}
+ diff = ((S << 24) | (I1 << 23) | (I2 << 22) | (hi << 12) | (lo << 1));
+ diff -= (1 << 24); /* sign extend */
+ value += diff;
-static void
-do_mav_triple_5h (char * str)
-{
- do_mav_triple (str, MAV_MODE5, REG_TYPE_MVDX, REG_TYPE_MVDX, REG_TYPE_MVDX);
-}
+ if ((value & ~0x1ffffff) && ((value & ~0x1ffffff) != ~0x1ffffff))
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("branch out of range"));
-/* Isnsn like "foo W,X,Y,Z".
- where W=MVAX[0:3] and X,Y,Z=MVFX[0:15]. */
+ newval = newval & 0xf800;
+ newval2 = newval2 & 0xd000;
+ if (seg->use_rela_p && !fixP->fx_done)
+ {
+#ifdef OBJ_ELF
+ fixP->fx_offset = value;
+#endif
+ fixP->fx_addnumber = value;
+ }
+ else
+ {
+ S = (value & 0x01000000) >> 24;
+ I1 = (value & 0x00800000) >> 23;
+ I2 = (value & 0x00400000) >> 22;
+ hi = (value & 0x003ff000) >> 12;
+ lo = (value & 0x00000ffe) >> 1;
-static void
-do_mav_quad (char * str,
- int mode,
- enum arm_reg_type reg0,
- enum arm_reg_type reg1,
- enum arm_reg_type reg2,
- enum arm_reg_type reg3)
-{
- int shift0, shift1, shift2, shift3;
+ I1 = !(I1 ^ S);
+ I2 = !(I2 ^ S);
- shift0= mode & 0xff;
- shift1 = (mode >> 8) & 0xff;
- shift2 = (mode >> 16) & 0xff;
- shift3 = (mode >> 24) & 0xff;
+ newval = newval | (S << 10) | hi;
+ newval2 = newval2 | (I1 << 13) | (I2 << 11) | lo;
+ }
+ md_number_to_chars (buf, newval, THUMB_SIZE);
+ md_number_to_chars (buf + THUMB_SIZE, newval2, THUMB_SIZE);
+ }
+ break;
- skip_whitespace (str);
+ case BFD_RELOC_16:
+ if (seg->use_rela_p && !fixP->fx_done)
+ break;
+ if (fixP->fx_done || fixP->fx_pcrel)
+ md_number_to_chars (buf, value, 2);
+#ifdef OBJ_ELF
+ else
+ {
+ value = fixP->fx_offset;
+ md_number_to_chars (buf, value, 2);
+ }
+#endif
+ break;
- if (mav_reg_required_here (&str, shift0, reg0) == FAIL
- || skip_past_comma (&str) == FAIL
- || mav_reg_required_here (&str, shift1, reg1) == FAIL
- || skip_past_comma (&str) == FAIL
- || mav_reg_required_here (&str, shift2, reg2) == FAIL
- || skip_past_comma (&str) == FAIL
- || mav_reg_required_here (&str, shift3, reg3) == FAIL)
- {
- if (!inst.error)
- inst.error = BAD_ARGS;
- }
- else
- end_of_line (str);
-}
+#ifdef OBJ_ELF
+ case BFD_RELOC_ARM_TLS_GD32:
+ case BFD_RELOC_ARM_TLS_LE32:
+ case BFD_RELOC_ARM_TLS_IE32:
+ case BFD_RELOC_ARM_TLS_LDM32:
+ case BFD_RELOC_ARM_TLS_LDO32:
+ S_SET_THREAD_LOCAL (fixP->fx_addsy);
+ /* fall through */
-static void
-do_mav_quad_6a (char * str)
-{
- do_mav_quad (str, MAV_MODE6, REG_TYPE_MVAX, REG_TYPE_MVFX, REG_TYPE_MVFX,
- REG_TYPE_MVFX);
-}
+ case BFD_RELOC_ARM_GOT32:
+ case BFD_RELOC_ARM_GOTOFF:
+ case BFD_RELOC_ARM_TARGET2:
+ if (seg->use_rela_p && !fixP->fx_done)
+ break;
+ md_number_to_chars (buf, 0, 4);
+ break;
+#endif
-static void
-do_mav_quad_6b (char * str)
-{
- do_mav_quad (str, MAV_MODE6, REG_TYPE_MVAX, REG_TYPE_MVAX, REG_TYPE_MVFX,
- REG_TYPE_MVFX);
-}
+ case BFD_RELOC_RVA:
+ case BFD_RELOC_32:
+ case BFD_RELOC_ARM_TARGET1:
+ case BFD_RELOC_ARM_ROSEGREL32:
+ case BFD_RELOC_ARM_SBREL32:
+ case BFD_RELOC_32_PCREL:
+ if (seg->use_rela_p && !fixP->fx_done)
+ break;
+ if (fixP->fx_done || fixP->fx_pcrel)
+ md_number_to_chars (buf, value, 4);
+#ifdef OBJ_ELF
+ else
+ {
+ value = fixP->fx_offset;
+ md_number_to_chars (buf, value, 4);
+ }
+#endif
+ break;
-/* cfmvsc32<cond> DSPSC,MVDX[15:0]. */
-static void
-do_mav_dspsc_1 (char * str)
-{
- skip_whitespace (str);
+#ifdef OBJ_ELF
+ case BFD_RELOC_ARM_PREL31:
+ if (fixP->fx_done || fixP->fx_pcrel)
+ {
+ newval = md_chars_to_number (buf, 4) & 0x80000000;
+ if ((value ^ (value >> 1)) & 0x40000000)
+ {
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("rel31 relocation overflow"));
+ }
+ newval |= value & 0x7fffffff;
+ md_number_to_chars (buf, newval, 4);
+ }
+ break;
- /* cfmvsc32. */
- if (mav_reg_required_here (&str, -1, REG_TYPE_DSPSC) == FAIL
- || skip_past_comma (&str) == FAIL
- || mav_reg_required_here (&str, 12, REG_TYPE_MVDX) == FAIL)
- {
- if (!inst.error)
- inst.error = BAD_ARGS;
+ case BFD_RELOC_ARM_PLT32:
+ /* It appears the instruction is fully prepared at this point. */
+ break;
+#endif
- return;
- }
+ case BFD_RELOC_ARM_CP_OFF_IMM:
+ if (value < -1023 || value > 1023 || (value & 3))
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("co-processor offset out of range"));
+ cp_off_common:
+ sign = value >= 0;
+ if (value < 0)
+ value = -value;
+ newval = md_chars_to_number (buf, INSN_SIZE) & 0xff7fff00;
+ newval |= (value >> 2) | (sign ? INDEX_UP : 0);
+ if (value == 0)
+ newval &= ~WRITE_BACK;
+ md_number_to_chars (buf, newval, INSN_SIZE);
+ break;
- end_of_line (str);
-}
+ case BFD_RELOC_ARM_CP_OFF_IMM_S2:
+ if (value < -255 || value > 255)
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("co-processor offset out of range"));
+ goto cp_off_common;
-/* cfmv32sc<cond> MVDX[15:0],DSPSC. */
-static void
-do_mav_dspsc_2 (char * str)
-{
- skip_whitespace (str);
+ case BFD_RELOC_ARM_THUMB_OFFSET:
+ newval = md_chars_to_number (buf, THUMB_SIZE);
+ /* Exactly what ranges, and where the offset is inserted depends
+ on the type of instruction, we can establish this from the
+ top 4 bits. */
+ switch (newval >> 12)
+ {
+ case 4: /* PC load. */
+ /* Thumb PC loads are somewhat odd, bit 1 of the PC is
+ forced to zero for these loads; md_pcrel_from has already
+ compensated for this. */
+ if (value & 3)
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("invalid offset, target not word aligned (0x%08lX)"),
+ (((unsigned int) fixP->fx_frag->fr_address
+ + (unsigned int) fixP->fx_where) & ~3) + value);
- /* cfmv32sc. */
- if (mav_reg_required_here (&str, 12, REG_TYPE_MVDX) == FAIL
- || skip_past_comma (&str) == FAIL
- || mav_reg_required_here (&str, -1, REG_TYPE_DSPSC) == FAIL)
- {
- if (!inst.error)
- inst.error = BAD_ARGS;
+ if (value & ~0x3fc)
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("invalid offset, value too big (0x%08lX)"),
+ (long) value);
- return;
- }
+ newval |= value >> 2;
+ break;
- end_of_line (str);
-}
+ case 9: /* SP load/store. */
+ if (value & ~0x3fc)
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("invalid offset, value too big (0x%08lX)"),
+ (long) value);
+ newval |= value >> 2;
+ break;
-/* Maverick shift immediate instructions.
- cfsh32<cond> MVFX[15:0],MVFX[15:0],Shift[6:0].
- cfsh64<cond> MVDX[15:0],MVDX[15:0],Shift[6:0]. */
+ case 6: /* Word load/store. */
+ if (value & ~0x7c)
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("invalid offset, value too big (0x%08lX)"),
+ (long) value);
+ newval |= value << 4; /* 6 - 2. */
+ break;
-static void
-do_mav_shift (char * str,
- enum arm_reg_type reg0,
- enum arm_reg_type reg1)
-{
- int error;
- int imm, neg = 0;
+ case 7: /* Byte load/store. */
+ if (value & ~0x1f)
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("invalid offset, value too big (0x%08lX)"),
+ (long) value);
+ newval |= value << 6;
+ break;
- skip_whitespace (str);
+ case 8: /* Halfword load/store. */
+ if (value & ~0x3e)
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("invalid offset, value too big (0x%08lX)"),
+ (long) value);
+ newval |= value << 5; /* 6 - 1. */
+ break;
- error = 0;
+ default:
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ "Unable to process relocation for thumb opcode: %lx",
+ (unsigned long) newval);
+ break;
+ }
+ md_number_to_chars (buf, newval, THUMB_SIZE);
+ break;
- if (mav_reg_required_here (&str, 12, reg0) == FAIL
- || skip_past_comma (&str) == FAIL
- || mav_reg_required_here (&str, 16, reg1) == FAIL
- || skip_past_comma (&str) == FAIL)
- {
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
- }
+ case BFD_RELOC_ARM_THUMB_ADD:
+ /* This is a complicated relocation, since we use it for all of
+ the following immediate relocations:
- /* Calculate the immediate operand.
- The operand is a 7bit signed number. */
- skip_whitespace (str);
+ 3bit ADD/SUB
+ 8bit ADD/SUB
+ 9bit ADD/SUB SP word-aligned
+ 10bit ADD PC/SP word-aligned
- if (*str == '#')
- ++str;
+ The type of instruction being processed is encoded in the
+ instruction field:
- if (!ISDIGIT (*str) && *str != '-')
- {
- inst.error = _("expecting immediate, 7bit operand");
- return;
- }
+ 0x8000 SUB
+ 0x00F0 Rd
+ 0x000F Rs
+ */
+ newval = md_chars_to_number (buf, THUMB_SIZE);
+ {
+ int rd = (newval >> 4) & 0xf;
+ int rs = newval & 0xf;
+ int subtract = !!(newval & 0x8000);
- if (*str == '-')
- {
- neg = 1;
- ++str;
- }
+ /* Check for HI regs, only very restricted cases allowed:
+ Adjusting SP, and using PC or SP to get an address. */
+ if ((rd > 7 && (rd != REG_SP || rs != REG_SP))
+ || (rs > 7 && rs != REG_SP && rs != REG_PC))
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("invalid Hi register with immediate"));
- for (imm = 0; *str && ISDIGIT (*str); ++str)
- imm = imm * 10 + *str - '0';
+ /* If value is negative, choose the opposite instruction. */
+ if (value < 0)
+ {
+ value = -value;
+ subtract = !subtract;
+ if (value < 0)
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("immediate value out of range"));
+ }
- if (imm > 64)
- {
- inst.error = _("immediate out of range");
- return;
- }
+ if (rd == REG_SP)
+ {
+ if (value & ~0x1fc)
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("invalid immediate for stack address calculation"));
+ newval = subtract ? T_OPCODE_SUB_ST : T_OPCODE_ADD_ST;
+ newval |= value >> 2;
+ }
+ else if (rs == REG_PC || rs == REG_SP)
+ {
+ if (subtract || value & ~0x3fc)
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("invalid immediate for address calculation (value = 0x%08lX)"),
+ (unsigned long) value);
+ newval = (rs == REG_PC ? T_OPCODE_ADD_PC : T_OPCODE_ADD_SP);
+ newval |= rd << 8;
+ newval |= value >> 2;
+ }
+ else if (rs == rd)
+ {
+ if (value & ~0xff)
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("immediate value out of range"));
+ newval = subtract ? T_OPCODE_SUB_I8 : T_OPCODE_ADD_I8;
+ newval |= (rd << 8) | value;
+ }
+ else
+ {
+ if (value & ~0x7)
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("immediate value out of range"));
+ newval = subtract ? T_OPCODE_SUB_I3 : T_OPCODE_ADD_I3;
+ newval |= rd | (rs << 3) | (value << 6);
+ }
+ }
+ md_number_to_chars (buf, newval, THUMB_SIZE);
+ break;
- /* Make negative imm's into 7bit signed numbers. */
- if (neg)
- {
- imm = -imm;
- imm &= 0x0000007f;
- }
+ case BFD_RELOC_ARM_THUMB_IMM:
+ newval = md_chars_to_number (buf, THUMB_SIZE);
+ if (value < 0 || value > 255)
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("invalid immediate: %ld is too large"),
+ (long) value);
+ newval |= value;
+ md_number_to_chars (buf, newval, THUMB_SIZE);
+ break;
- /* Bits 0-3 of the insn should have bits 0-3 of the immediate.
- Bits 5-7 of the insn should have bits 4-6 of the immediate.
- Bit 4 should be 0. */
- imm = (imm & 0xf) | ((imm & 0x70) << 1);
+ case BFD_RELOC_ARM_THUMB_SHIFT:
+ /* 5bit shift value (0..32). LSL cannot take 32. */
+ newval = md_chars_to_number (buf, THUMB_SIZE) & 0xf83f;
+ temp = newval & 0xf800;
+ if (value < 0 || value > 32 || (value == 32 && temp == T_OPCODE_LSL_I))
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("invalid shift value: %ld"), (long) value);
+ /* Shifts of zero must be encoded as LSL. */
+ if (value == 0)
+ newval = (newval & 0x003f) | T_OPCODE_LSL_I;
+ /* Shifts of 32 are encoded as zero. */
+ else if (value == 32)
+ value = 0;
+ newval |= value << 6;
+ md_number_to_chars (buf, newval, THUMB_SIZE);
+ break;
- inst.instruction |= imm;
- end_of_line (str);
-}
+ case BFD_RELOC_VTABLE_INHERIT:
+ case BFD_RELOC_VTABLE_ENTRY:
+ fixP->fx_done = 0;
+ return;
-static void
-do_mav_shift_1 (char * str)
-{
- do_mav_shift (str, REG_TYPE_MVFX, REG_TYPE_MVFX);
+ case BFD_RELOC_UNUSED:
+ default:
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("bad relocation fixup type (%d)"), fixP->fx_r_type);
+ }
}
-static void
-do_mav_shift_2 (char * str)
-{
- do_mav_shift (str, REG_TYPE_MVDX, REG_TYPE_MVDX);
-}
+/* Translate internal representation of relocation info to BFD target
+ format. */
-static int
-mav_parse_offset (char ** str, int * negative)
+arelent *
+tc_gen_reloc (asection * section ATTRIBUTE_UNUSED,
+ fixS * fixp)
{
- char * p = *str;
- int offset;
-
- *negative = 0;
-
- skip_whitespace (p);
+ arelent * reloc;
+ bfd_reloc_code_real_type code;
- if (*p == '#')
- ++p;
+ reloc = xmalloc (sizeof (arelent));
- if (*p == '-')
- {
- *negative = 1;
- ++p;
- }
+ reloc->sym_ptr_ptr = xmalloc (sizeof (asymbol *));
+ *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
+ reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
- if (!ISDIGIT (*p))
- {
- inst.error = _("offset expected");
- return 0;
- }
-
- for (offset = 0; *p && ISDIGIT (*p); ++p)
- offset = offset * 10 + *p - '0';
+ /* @@ Why fx_addnumber sometimes and fx_offset other times? */
+#ifndef OBJ_ELF
+ if (fixp->fx_pcrel == 0)
+ reloc->addend = fixp->fx_offset;
+ else
+ reloc->addend = fixp->fx_offset = reloc->address;
+#else /* OBJ_ELF */
+ reloc->addend = fixp->fx_offset;
+#endif
- if (offset > 0x3fc)
- {
- inst.error = _("offset out of range");
- return 0;
- }
- if (offset & 0x3)
+ switch (fixp->fx_r_type)
{
- inst.error = _("offset not a multiple of 4");
- return 0;
- }
-
- *str = p;
+ case BFD_RELOC_8:
+ if (fixp->fx_pcrel)
+ {
+ code = BFD_RELOC_8_PCREL;
+ break;
+ }
- return *negative ? -offset : offset;
-}
+ case BFD_RELOC_16:
+ if (fixp->fx_pcrel)
+ {
+ code = BFD_RELOC_16_PCREL;
+ break;
+ }
-/* Maverick load/store instructions.
- <insn><cond> CRd,[Rn,<offset>]{!}.
- <insn><cond> CRd,[Rn],<offset>. */
+ case BFD_RELOC_32:
+ if (fixp->fx_pcrel)
+ {
+ code = BFD_RELOC_32_PCREL;
+ break;
+ }
-static void
-do_mav_ldst (char * str, enum arm_reg_type reg0)
-{
- int offset, negative;
+ case BFD_RELOC_NONE:
+ case BFD_RELOC_ARM_PCREL_BRANCH:
+ case BFD_RELOC_ARM_PCREL_BLX:
+ case BFD_RELOC_RVA:
+ case BFD_RELOC_THUMB_PCREL_BRANCH7:
+ case BFD_RELOC_THUMB_PCREL_BRANCH9:
+ case BFD_RELOC_THUMB_PCREL_BRANCH12:
+ case BFD_RELOC_THUMB_PCREL_BRANCH20:
+ case BFD_RELOC_THUMB_PCREL_BRANCH23:
+ case BFD_RELOC_THUMB_PCREL_BRANCH25:
+ case BFD_RELOC_THUMB_PCREL_BLX:
+ case BFD_RELOC_VTABLE_ENTRY:
+ case BFD_RELOC_VTABLE_INHERIT:
+ code = fixp->fx_r_type;
+ break;
- skip_whitespace (str);
+ case BFD_RELOC_ARM_LITERAL:
+ case BFD_RELOC_ARM_HWLITERAL:
+ /* If this is called then the a literal has
+ been referenced across a section boundary. */
+ as_bad_where (fixp->fx_file, fixp->fx_line,
+ _("literal referenced across section boundary"));
+ return NULL;
- if (mav_reg_required_here (&str, 12, reg0) == FAIL
- || skip_past_comma (&str) == FAIL
- || *str++ != '['
- || reg_required_here (&str, 16) == FAIL)
- goto fail_ldst;
+#ifdef OBJ_ELF
+ case BFD_RELOC_ARM_GOT32:
+ case BFD_RELOC_ARM_GOTOFF:
+ case BFD_RELOC_ARM_PLT32:
+ case BFD_RELOC_ARM_TARGET1:
+ case BFD_RELOC_ARM_ROSEGREL32:
+ case BFD_RELOC_ARM_SBREL32:
+ case BFD_RELOC_ARM_PREL31:
+ case BFD_RELOC_ARM_TARGET2:
+ case BFD_RELOC_ARM_TLS_LE32:
+ case BFD_RELOC_ARM_TLS_LDO32:
+ code = fixp->fx_r_type;
+ break;
- if (skip_past_comma (&str) == SUCCESS)
- {
- /* You are here: "<offset>]{!}". */
- inst.instruction |= PRE_INDEX;
+ case BFD_RELOC_ARM_TLS_GD32:
+ case BFD_RELOC_ARM_TLS_IE32:
+ case BFD_RELOC_ARM_TLS_LDM32:
+ /* BFD will include the symbol's address in the addend.
+ But we don't want that, so subtract it out again here. */
+ if (!S_IS_COMMON (fixp->fx_addsy))
+ reloc->addend -= (*reloc->sym_ptr_ptr)->value;
+ code = fixp->fx_r_type;
+ break;
+#endif
- offset = mav_parse_offset (&str, &negative);
+ case BFD_RELOC_ARM_IMMEDIATE:
+ as_bad_where (fixp->fx_file, fixp->fx_line,
+ _("internal relocation (type: IMMEDIATE) not fixed up"));
+ return NULL;
- if (inst.error)
- return;
+ case BFD_RELOC_ARM_ADRL_IMMEDIATE:
+ as_bad_where (fixp->fx_file, fixp->fx_line,
+ _("ADRL used for a symbol not defined in the same file"));
+ return NULL;
- if (*str++ != ']')
+ case BFD_RELOC_ARM_OFFSET_IMM:
+ if (fixp->fx_addsy != NULL
+ && !S_IS_DEFINED (fixp->fx_addsy)
+ && S_IS_LOCAL (fixp->fx_addsy))
{
- inst.error = _("missing ]");
- return;
+ as_bad_where (fixp->fx_file, fixp->fx_line,
+ _("undefined local label `%s'"),
+ S_GET_NAME (fixp->fx_addsy));
+ return NULL;
}
- if (*str == '!')
- {
- inst.instruction |= WRITE_BACK;
- ++str;
- }
- }
- else
- {
- /* You are here: "], <offset>". */
- if (*str++ != ']')
- {
- inst.error = _("missing ]");
- return;
- }
+ as_bad_where (fixp->fx_file, fixp->fx_line,
+ _("internal_relocation (type: OFFSET_IMM) not fixed up"));
+ return NULL;
- if (skip_past_comma (&str) == FAIL
- || (offset = mav_parse_offset (&str, &negative), inst.error))
- goto fail_ldst;
+ default:
+ {
+ char * type;
- inst.instruction |= CP_T_WB; /* Post indexed, set bit W. */
+ switch (fixp->fx_r_type)
+ {
+ case BFD_RELOC_NONE: type = "NONE"; break;
+ case BFD_RELOC_ARM_OFFSET_IMM8: type = "OFFSET_IMM8"; break;
+ case BFD_RELOC_ARM_SHIFT_IMM: type = "SHIFT_IMM"; break;
+ case BFD_RELOC_ARM_SMI: type = "SMI"; break;
+ case BFD_RELOC_ARM_SWI: type = "SWI"; break;
+ case BFD_RELOC_ARM_MULTI: type = "MULTI"; break;
+ case BFD_RELOC_ARM_CP_OFF_IMM: type = "CP_OFF_IMM"; break;
+ case BFD_RELOC_ARM_THUMB_ADD: type = "THUMB_ADD"; break;
+ case BFD_RELOC_ARM_THUMB_SHIFT: type = "THUMB_SHIFT"; break;
+ case BFD_RELOC_ARM_THUMB_IMM: type = "THUMB_IMM"; break;
+ case BFD_RELOC_ARM_THUMB_OFFSET: type = "THUMB_OFFSET"; break;
+ default: type = _("<unknown>"); break;
+ }
+ as_bad_where (fixp->fx_file, fixp->fx_line,
+ _("cannot represent %s relocation in this object file format"),
+ type);
+ return NULL;
+ }
}
- if (negative)
- offset = -offset;
- else
- inst.instruction |= CP_T_UD; /* Positive, so set bit U. */
+#ifdef OBJ_ELF
+ if ((code == BFD_RELOC_32_PCREL || code == BFD_RELOC_32)
+ && GOT_symbol
+ && fixp->fx_addsy == GOT_symbol)
+ {
+ code = BFD_RELOC_ARM_GOTPC;
+ reloc->addend = fixp->fx_offset = reloc->address;
+ }
+#endif
- inst.instruction |= offset >> 2;
- end_of_line (str);
- return;
+ reloc->howto = bfd_reloc_type_lookup (stdoutput, code);
-fail_ldst:
- if (!inst.error)
- inst.error = BAD_ARGS;
-}
+ if (reloc->howto == NULL)
+ {
+ as_bad_where (fixp->fx_file, fixp->fx_line,
+ _("cannot represent %s relocation in this object file format"),
+ bfd_get_reloc_code_name (code));
+ return NULL;
+ }
-static void
-do_mav_ldst_1 (char * str)
-{
- do_mav_ldst (str, REG_TYPE_MVF);
-}
+ /* HACK: Since arm ELF uses Rel instead of Rela, encode the
+ vtable entry to be used in the relocation's section offset. */
+ if (fixp->fx_r_type == BFD_RELOC_VTABLE_ENTRY)
+ reloc->address = fixp->fx_offset;
-static void
-do_mav_ldst_2 (char * str)
-{
- do_mav_ldst (str, REG_TYPE_MVD);
+ return reloc;
}
-static void
-do_mav_ldst_3 (char * str)
-{
- do_mav_ldst (str, REG_TYPE_MVFX);
-}
+/* This fix_new is called by cons via TC_CONS_FIX_NEW. */
-static void
-do_mav_ldst_4 (char * str)
+void
+cons_fix_new_arm (fragS * frag,
+ int where,
+ int size,
+ expressionS * exp)
{
- do_mav_ldst (str, REG_TYPE_MVDX);
-}
+ bfd_reloc_code_real_type type;
+ int pcrel = 0;
-static void
-do_t_nop (char * str)
-{
- /* Do nothing. */
- end_of_line (str);
-}
+ /* Pick a reloc.
+ FIXME: @@ Should look at CPU word size. */
+ switch (size)
+ {
+ case 1:
+ type = BFD_RELOC_8;
+ break;
+ case 2:
+ type = BFD_RELOC_16;
+ break;
+ case 4:
+ default:
+ type = BFD_RELOC_32;
+ break;
+ case 8:
+ type = BFD_RELOC_64;
+ break;
+ }
-/* Handle the Format 4 instructions that do not have equivalents in other
- formats. That is, ADC, AND, EOR, SBC, ROR, TST, NEG, CMN, ORR, MUL,
- BIC and MVN. */
+ fix_new_exp (frag, where, (int) size, exp, pcrel, type);
+}
-static void
-do_t_arit (char * str)
+#if defined OBJ_COFF || defined OBJ_ELF
+void
+arm_validate_fix (fixS * fixP)
{
- int Rd, Rs, Rn;
-
- skip_whitespace (str);
-
- if ((Rd = thumb_reg (&str, THUMB_REG_LO)) == FAIL
- || skip_past_comma (&str) == FAIL
- || (Rs = thumb_reg (&str, THUMB_REG_LO)) == FAIL)
+ /* If the destination of the branch is a defined symbol which does not have
+ the THUMB_FUNC attribute, then we must be calling a function which has
+ the (interfacearm) attribute. We look for the Thumb entry point to that
+ function and change the branch to refer to that function instead. */
+ if (fixP->fx_r_type == BFD_RELOC_THUMB_PCREL_BRANCH23
+ && fixP->fx_addsy != NULL
+ && S_IS_DEFINED (fixP->fx_addsy)
+ && ! THUMB_IS_FUNC (fixP->fx_addsy))
{
- inst.error = BAD_ARGS;
- return;
+ fixP->fx_addsy = find_real_start (fixP->fx_addsy);
}
+}
+#endif
- if (skip_past_comma (&str) != FAIL)
- {
- /* Three operand format not allowed for TST, CMN, NEG and MVN.
- (It isn't allowed for CMP either, but that isn't handled by this
- function.) */
- if (inst.instruction == T_OPCODE_TST
- || inst.instruction == T_OPCODE_CMN
- || inst.instruction == T_OPCODE_NEG
- || inst.instruction == T_OPCODE_MVN)
- {
- inst.error = BAD_ARGS;
- return;
- }
-
- if ((Rn = thumb_reg (&str, THUMB_REG_LO)) == FAIL)
- return;
-
- if (Rs != Rd)
- {
- inst.error = _("dest and source1 must be the same register");
- return;
- }
- Rs = Rn;
- }
+int
+arm_force_relocation (struct fix * fixp)
+{
+#if defined (OBJ_COFF) && defined (TE_PE)
+ if (fixp->fx_r_type == BFD_RELOC_RVA)
+ return 1;
+#endif
+#ifdef OBJ_ELF
+ if (fixp->fx_r_type == BFD_RELOC_ARM_PCREL_BRANCH
+ || fixp->fx_r_type == BFD_RELOC_ARM_PCREL_BLX
+ || fixp->fx_r_type == BFD_RELOC_THUMB_PCREL_BLX
+ || fixp->fx_r_type == BFD_RELOC_THUMB_PCREL_BRANCH23)
+ return 1;
+#endif
- if (inst.instruction == T_OPCODE_MUL
- && Rs == Rd)
- as_tsktsk (_("Rs and Rd must be different in MUL"));
+ /* Resolve these relocations even if the symbol is extern or weak. */
+ if (fixp->fx_r_type == BFD_RELOC_ARM_IMMEDIATE
+ || fixp->fx_r_type == BFD_RELOC_ARM_OFFSET_IMM
+ || fixp->fx_r_type == BFD_RELOC_ARM_ADRL_IMMEDIATE)
+ return 0;
- inst.instruction |= Rd | (Rs << 3);
- end_of_line (str);
+ return generic_force_reloc (fixp);
}
-static void
-do_t_add (char * str)
-{
- thumb_add_sub (str, 0);
-}
+#ifdef OBJ_COFF
+/* This is a little hack to help the gas/arm/adrl.s test. It prevents
+ local labels from being added to the output symbol table when they
+ are used with the ADRL pseudo op. The ADRL relocation should always
+ be resolved before the binbary is emitted, so it is safe to say that
+ it is adjustable. */
-static void
-do_t_asr (char * str)
+bfd_boolean
+arm_fix_adjustable (fixS * fixP)
{
- thumb_shift (str, THUMB_ASR);
+ if (fixP->fx_r_type == BFD_RELOC_ARM_ADRL_IMMEDIATE)
+ return 1;
+ return 0;
}
+#endif
-static void
-do_t_branch9 (char * str)
-{
- if (my_get_expression (&inst.reloc.exp, &str))
- return;
- inst.reloc.type = BFD_RELOC_THUMB_PCREL_BRANCH9;
- inst.reloc.pc_rel = 1;
- end_of_line (str);
-}
-
-static void
-do_t_branch12 (char * str)
-{
- if (my_get_expression (&inst.reloc.exp, &str))
- return;
- inst.reloc.type = BFD_RELOC_THUMB_PCREL_BRANCH12;
- inst.reloc.pc_rel = 1;
- end_of_line (str);
-}
+#ifdef OBJ_ELF
+/* Relocations against Thumb function names must be left unadjusted,
+ so that the linker can use this information to correctly set the
+ bottom bit of their addresses. The MIPS version of this function
+ also prevents relocations that are mips-16 specific, but I do not
+ know why it does this.
-/* Find the real, Thumb encoded start of a Thumb function. */
+ FIXME:
+ There is one other problem that ought to be addressed here, but
+ which currently is not: Taking the address of a label (rather
+ than a function) and then later jumping to that address. Such
+ addresses also ought to have their bottom bit set (assuming that
+ they reside in Thumb code), but at the moment they will not. */
-static symbolS *
-find_real_start (symbolS * symbolP)
+bfd_boolean
+arm_fix_adjustable (fixS * fixP)
{
- char * real_start;
- const char * name = S_GET_NAME (symbolP);
- symbolS * new_target;
-
- /* This definition must agree with the one in gcc/config/arm/thumb.c. */
-#define STUB_NAME ".real_start_of"
-
- if (name == NULL)
- abort ();
-
- /* Names that start with '.' are local labels, not function entry points.
- The compiler may generate BL instructions to these labels because it
- needs to perform a branch to a far away location. */
- if (name[0] == '.')
- return symbolP;
-
- real_start = malloc (strlen (name) + strlen (STUB_NAME) + 1);
- sprintf (real_start, "%s%s", STUB_NAME, name);
+ if (fixP->fx_addsy == NULL)
+ return 1;
- new_target = symbol_find (real_start);
+ if (THUMB_IS_FUNC (fixP->fx_addsy)
+ && fixP->fx_subsy == NULL)
+ return 0;
- if (new_target == NULL)
- {
- as_warn ("Failed to find real start of function: %s\n", name);
- new_target = symbolP;
- }
+ /* We need the symbol name for the VTABLE entries. */
+ if ( fixP->fx_r_type == BFD_RELOC_VTABLE_INHERIT
+ || fixP->fx_r_type == BFD_RELOC_VTABLE_ENTRY)
+ return 0;
- free (real_start);
+ /* Don't allow symbols to be discarded on GOT related relocs. */
+ if (fixP->fx_r_type == BFD_RELOC_ARM_PLT32
+ || fixP->fx_r_type == BFD_RELOC_ARM_GOT32
+ || fixP->fx_r_type == BFD_RELOC_ARM_GOTOFF
+ || fixP->fx_r_type == BFD_RELOC_ARM_TLS_GD32
+ || fixP->fx_r_type == BFD_RELOC_ARM_TLS_LE32
+ || fixP->fx_r_type == BFD_RELOC_ARM_TLS_IE32
+ || fixP->fx_r_type == BFD_RELOC_ARM_TLS_LDM32
+ || fixP->fx_r_type == BFD_RELOC_ARM_TLS_LDO32
+ || fixP->fx_r_type == BFD_RELOC_ARM_TARGET2)
+ return 0;
- return new_target;
+ return 1;
}
-static void
-do_t_branch23 (char * str)
+const char *
+elf32_arm_target_format (void)
{
- if (my_get_expression (& inst.reloc.exp, & str))
- return;
-
- inst.reloc.type = BFD_RELOC_THUMB_PCREL_BRANCH23;
- inst.reloc.pc_rel = 1;
- end_of_line (str);
-
- /* If the destination of the branch is a defined symbol which does not have
- the THUMB_FUNC attribute, then we must be calling a function which has
- the (interfacearm) attribute. We look for the Thumb entry point to that
- function and change the branch to refer to that function instead. */
- if ( inst.reloc.exp.X_op == O_symbol
- && inst.reloc.exp.X_add_symbol != NULL
- && S_IS_DEFINED (inst.reloc.exp.X_add_symbol)
- && ! THUMB_IS_FUNC (inst.reloc.exp.X_add_symbol))
- inst.reloc.exp.X_add_symbol =
- find_real_start (inst.reloc.exp.X_add_symbol);
+#ifdef TE_SYMBIAN
+ return (target_big_endian
+ ? "elf32-bigarm-symbian"
+ : "elf32-littlearm-symbian");
+#elif defined (TE_VXWORKS)
+ return (target_big_endian
+ ? "elf32-bigarm-vxworks"
+ : "elf32-littlearm-vxworks");
+#else
+ if (target_big_endian)
+ return "elf32-bigarm";
+ else
+ return "elf32-littlearm";
+#endif
}
-static void
-do_t_bx (char * str)
+void
+armelf_frob_symbol (symbolS * symp,
+ int * puntp)
{
- int reg;
-
- skip_whitespace (str);
+ elf_frob_symbol (symp, puntp);
+}
+#endif
- if ((reg = thumb_reg (&str, THUMB_REG_ANY)) == FAIL)
- return;
+/* MD interface: Finalization. */
- /* This sets THUMB_H2 from the top bit of reg. */
- inst.instruction |= reg << 3;
+/* A good place to do this, although this was probably not intended
+ for this kind of use. We need to dump the literal pool before
+ references are made to a null symbol pointer. */
- /* ??? FIXME: Should add a hacky reloc here if reg is REG_PC. The reloc
- should cause the alignment to be checked once it is known. This is
- because BX PC only works if the instruction is word aligned. */
+void
+arm_cleanup (void)
+{
+ literal_pool * pool;
- end_of_line (str);
+ for (pool = list_of_pools; pool; pool = pool->next)
+ {
+ /* Put it at the end of the relevent section. */
+ subseg_set (pool->section, pool->sub_section);
+#ifdef OBJ_ELF
+ arm_elf_change_section ();
+#endif
+ s_ltorg (0);
+ }
}
-static void
-do_t_compare (char * str)
-{
- thumb_mov_compare (str, THUMB_COMPARE);
-}
+/* Adjust the symbol table. This marks Thumb symbols as distinct from
+ ARM ones. */
-static void
-do_t_ldmstm (char * str)
+void
+arm_adjust_symtab (void)
{
- int Rb;
- long range;
-
- skip_whitespace (str);
+#ifdef OBJ_COFF
+ symbolS * sym;
- if ((Rb = thumb_reg (&str, THUMB_REG_LO)) == FAIL)
- return;
+ for (sym = symbol_rootP; sym != NULL; sym = symbol_next (sym))
+ {
+ if (ARM_IS_THUMB (sym))
+ {
+ if (THUMB_IS_FUNC (sym))
+ {
+ /* Mark the symbol as a Thumb function. */
+ if ( S_GET_STORAGE_CLASS (sym) == C_STAT
+ || S_GET_STORAGE_CLASS (sym) == C_LABEL) /* This can happen! */
+ S_SET_STORAGE_CLASS (sym, C_THUMBSTATFUNC);
- if (*str != '!')
- as_warn (_("inserted missing '!': load/store multiple always writes back base register"));
- else
- str++;
+ else if (S_GET_STORAGE_CLASS (sym) == C_EXT)
+ S_SET_STORAGE_CLASS (sym, C_THUMBEXTFUNC);
+ else
+ as_bad (_("%s: unexpected function type: %d"),
+ S_GET_NAME (sym), S_GET_STORAGE_CLASS (sym));
+ }
+ else switch (S_GET_STORAGE_CLASS (sym))
+ {
+ case C_EXT:
+ S_SET_STORAGE_CLASS (sym, C_THUMBEXT);
+ break;
+ case C_STAT:
+ S_SET_STORAGE_CLASS (sym, C_THUMBSTAT);
+ break;
+ case C_LABEL:
+ S_SET_STORAGE_CLASS (sym, C_THUMBLABEL);
+ break;
+ default:
+ /* Do nothing. */
+ break;
+ }
+ }
- if (skip_past_comma (&str) == FAIL
- || (range = reg_list (&str)) == FAIL)
- {
- if (! inst.error)
- inst.error = BAD_ARGS;
- return;
+ if (ARM_IS_INTERWORK (sym))
+ coffsymbol (symbol_get_bfdsym (sym))->native->u.syment.n_flags = 0xFF;
}
+#endif
+#ifdef OBJ_ELF
+ symbolS * sym;
+ char bind;
- if (inst.reloc.type != BFD_RELOC_UNUSED)
+ for (sym = symbol_rootP; sym != NULL; sym = symbol_next (sym))
{
- /* This really doesn't seem worth it. */
- inst.reloc.type = BFD_RELOC_UNUSED;
- inst.error = _("expression too complex");
- return;
- }
+ if (ARM_IS_THUMB (sym))
+ {
+ elf_symbol_type * elf_sym;
- if (range & ~0xff)
- {
- inst.error = _("only lo-regs valid in load/store multiple");
- return;
- }
+ elf_sym = elf_symbol (symbol_get_bfdsym (sym));
+ bind = ELF_ST_BIND (elf_sym->internal_elf_sym.st_info);
- inst.instruction |= (Rb << 8) | range;
- end_of_line (str);
+ if (! bfd_is_arm_mapping_symbol_name (elf_sym->symbol.name))
+ {
+ /* If it's a .thumb_func, declare it as so,
+ otherwise tag label as .code 16. */
+ if (THUMB_IS_FUNC (sym))
+ elf_sym->internal_elf_sym.st_info =
+ ELF_ST_INFO (bind, STT_ARM_TFUNC);
+ else
+ elf_sym->internal_elf_sym.st_info =
+ ELF_ST_INFO (bind, STT_ARM_16BIT);
+ }
+ }
+ }
+#endif
}
-static void
-do_t_ldr (char * str)
-{
- thumb_load_store (str, THUMB_LOAD, THUMB_WORD);
-}
+/* MD interface: Initialization. */
static void
-do_t_ldrb (char * str)
+set_constant_flonums (void)
{
- thumb_load_store (str, THUMB_LOAD, THUMB_BYTE);
-}
+ int i;
-static void
-do_t_ldrh (char * str)
-{
- thumb_load_store (str, THUMB_LOAD, THUMB_HALFWORD);
+ for (i = 0; i < NUM_FLOAT_VALS; i++)
+ if (atof_ieee ((char *) fp_const[i], 'x', fp_values[i]) == NULL)
+ abort ();
}
-static void
-do_t_lds (char * str)
+void
+md_begin (void)
{
- int Rd, Rb, Ro;
+ unsigned mach;
+ unsigned int i;
- skip_whitespace (str);
+ if ( (arm_ops_hsh = hash_new ()) == NULL
+ || (arm_cond_hsh = hash_new ()) == NULL
+ || (arm_shift_hsh = hash_new ()) == NULL
+ || (arm_psr_hsh = hash_new ()) == NULL
+ || (arm_reg_hsh = hash_new ()) == NULL
+ || (arm_reloc_hsh = hash_new ()) == NULL)
+ as_fatal (_("virtual memory exhausted"));
+
+ for (i = 0; i < sizeof (insns) / sizeof (struct asm_opcode); i++)
+ hash_insert (arm_ops_hsh, insns[i].template, (PTR) (insns + i));
+ for (i = 0; i < sizeof (conds) / sizeof (struct asm_cond); i++)
+ hash_insert (arm_cond_hsh, conds[i].template, (PTR) (conds + i));
+ for (i = 0; i < sizeof (shift_names) / sizeof (struct asm_shift_name); i++)
+ hash_insert (arm_shift_hsh, shift_names[i].name, (PTR) (shift_names + i));
+ for (i = 0; i < sizeof (psrs) / sizeof (struct asm_psr); i++)
+ hash_insert (arm_psr_hsh, psrs[i].template, (PTR) (psrs + i));
+ for (i = 0; i < sizeof (reg_names) / sizeof (struct reg_entry); i++)
+ hash_insert (arm_reg_hsh, reg_names[i].name, (PTR) (reg_names + i));
+#ifdef OBJ_ELF
+ for (i = 0; i < sizeof (reloc_names) / sizeof (struct reloc_entry); i++)
+ hash_insert (arm_reloc_hsh, reloc_names[i].name, (PTR) (reloc_names + i));
+#endif
+
+ set_constant_flonums ();
- if ((Rd = thumb_reg (&str, THUMB_REG_LO)) == FAIL
- || skip_past_comma (&str) == FAIL
- || *str++ != '['
- || (Rb = thumb_reg (&str, THUMB_REG_LO)) == FAIL
- || skip_past_comma (&str) == FAIL
- || (Ro = thumb_reg (&str, THUMB_REG_LO)) == FAIL
- || *str++ != ']')
+ /* Set the cpu variant based on the command-line options. We prefer
+ -mcpu= over -march= if both are set (as for GCC); and we prefer
+ -mfpu= over any other way of setting the floating point unit.
+ Use of legacy options with new options are faulted. */
+ if (legacy_cpu != -1)
{
- if (! inst.error)
- inst.error = _("syntax: ldrs[b] Rd, [Rb, Ro]");
- return;
+ if (mcpu_cpu_opt != -1 || march_cpu_opt != -1)
+ as_bad (_("use of old and new-style options to set CPU type"));
+
+ mcpu_cpu_opt = legacy_cpu;
}
+ else if (mcpu_cpu_opt == -1)
+ mcpu_cpu_opt = march_cpu_opt;
- inst.instruction |= Rd | (Rb << 3) | (Ro << 6);
- end_of_line (str);
-}
-
-static void
-do_t_lsl (char * str)
-{
- thumb_shift (str, THUMB_LSL);
-}
-
-static void
-do_t_lsr (char * str)
-{
- thumb_shift (str, THUMB_LSR);
-}
-
-static void
-do_t_mov (char * str)
-{
- thumb_mov_compare (str, THUMB_MOVE);
-}
-
-static void
-do_t_push_pop (char * str)
-{
- long range;
-
- skip_whitespace (str);
-
- if ((range = reg_list (&str)) == FAIL)
- {
- if (! inst.error)
- inst.error = BAD_ARGS;
- return;
- }
-
- if (inst.reloc.type != BFD_RELOC_UNUSED)
- {
- /* This really doesn't seem worth it. */
- inst.reloc.type = BFD_RELOC_UNUSED;
- inst.error = _("expression too complex");
- return;
- }
-
- if (range & ~0xff)
- {
- if ((inst.instruction == T_OPCODE_PUSH
- && (range & ~0xff) == 1 << REG_LR)
- || (inst.instruction == T_OPCODE_POP
- && (range & ~0xff) == 1 << REG_PC))
- {
- inst.instruction |= THUMB_PP_PC_LR;
- range &= 0xff;
- }
- else
- {
- inst.error = _("invalid register list to push/pop instruction");
- return;
- }
- }
-
- inst.instruction |= range;
- end_of_line (str);
-}
-
-static void
-do_t_str (char * str)
-{
- thumb_load_store (str, THUMB_STORE, THUMB_WORD);
-}
-
-static void
-do_t_strb (char * str)
-{
- thumb_load_store (str, THUMB_STORE, THUMB_BYTE);
-}
-
-static void
-do_t_strh (char * str)
-{
- thumb_load_store (str, THUMB_STORE, THUMB_HALFWORD);
-}
-
-static void
-do_t_sub (char * str)
-{
- thumb_add_sub (str, 1);
-}
-
-static void
-do_t_swi (char * str)
-{
- skip_whitespace (str);
-
- if (my_get_expression (&inst.reloc.exp, &str))
- return;
-
- inst.reloc.type = BFD_RELOC_ARM_SWI;
- end_of_line (str);
-}
-
-static void
-do_t_adr (char * str)
-{
- int reg;
-
- /* This is a pseudo-op of the form "adr rd, label" to be converted
- into a relative address of the form "add rd, pc, #label-.-4". */
- skip_whitespace (str);
-
- /* Store Rd in temporary location inside instruction. */
- if ((reg = reg_required_here (&str, 4)) == FAIL
- || (reg > 7) /* For Thumb reg must be r0..r7. */
- || skip_past_comma (&str) == FAIL
- || my_get_expression (&inst.reloc.exp, &str))
- {
- if (!inst.error)
- inst.error = BAD_ARGS;
- return;
- }
-
- inst.reloc.type = BFD_RELOC_ARM_THUMB_ADD;
- inst.reloc.exp.X_add_number -= 4; /* PC relative adjust. */
- inst.reloc.pc_rel = 1;
- inst.instruction |= REG_PC; /* Rd is already placed into the instruction. */
-
- end_of_line (str);
-}
-
-static void
-insert_reg (const struct reg_entry * r,
- struct hash_control * htab)
-{
- int len = strlen (r->name) + 2;
- char * buf = xmalloc (len);
- char * buf2 = xmalloc (len);
- int i = 0;
-
-#ifdef REGISTER_PREFIX
- buf[i++] = REGISTER_PREFIX;
-#endif
-
- strcpy (buf + i, r->name);
-
- for (i = 0; buf[i]; i++)
- buf2[i] = TOUPPER (buf[i]);
-
- buf2[i] = '\0';
-
- hash_insert (htab, buf, (PTR) r);
- hash_insert (htab, buf2, (PTR) r);
-}
-
-static void
-build_reg_hsh (struct reg_map * map)
-{
- const struct reg_entry *r;
-
- if ((map->htab = hash_new ()) == NULL)
- as_fatal (_("virtual memory exhausted"));
-
- for (r = map->names; r->name != NULL; r++)
- insert_reg (r, map->htab);
-}
-
-static void
-insert_reg_alias (char * str,
- int regnum,
- struct hash_control *htab)
-{
- const char * error;
- struct reg_entry * new = xmalloc (sizeof (struct reg_entry));
- const char * name = xmalloc (strlen (str) + 1);
-
- strcpy ((char *) name, str);
-
- new->name = name;
- new->number = regnum;
- new->builtin = FALSE;
-
- error = hash_insert (htab, name, (PTR) new);
- if (error)
- {
- as_bad (_("failed to create an alias for %s, reason: %s"),
- str, error);
- free ((char *) name);
- free (new);
- }
-}
-
-/* Look for the .req directive. This is of the form:
-
- new_register_name .req existing_register_name
-
- If we find one, or if it looks sufficiently like one that we want to
- handle any error here, return non-zero. Otherwise return zero. */
-
-static int
-create_register_alias (char * newname, char * p)
-{
- char * q;
- char c;
-
- q = p;
- skip_whitespace (q);
-
- c = *p;
- *p = '\0';
-
- if (*q && !strncmp (q, ".req ", 5))
- {
- char *copy_of_str;
- char *r;
-
-#ifndef IGNORE_OPCODE_CASE
- newname = original_case_string;
-#endif
- copy_of_str = newname;
-
- q += 4;
- skip_whitespace (q);
-
- for (r = q; *r != '\0'; r++)
- if (*r == ' ')
- break;
-
- if (r != q)
- {
- enum arm_reg_type new_type, old_type;
- int old_regno;
- char d = *r;
-
- *r = '\0';
- old_type = arm_reg_parse_any (q);
- *r = d;
-
- new_type = arm_reg_parse_any (newname);
-
- if (new_type == REG_TYPE_MAX)
- {
- if (old_type != REG_TYPE_MAX)
- {
- old_regno = arm_reg_parse (&q, all_reg_maps[old_type].htab);
- insert_reg_alias (newname, old_regno,
- all_reg_maps[old_type].htab);
- }
- else
- as_warn (_("register '%s' does not exist\n"), q);
- }
- else if (old_type == REG_TYPE_MAX)
- {
- as_warn (_("ignoring redefinition of register alias '%s' to non-existant register '%s'"),
- copy_of_str, q);
- }
- else
- {
- /* Do not warn about redefinitions to the same alias. */
- if (new_type != old_type
- || (arm_reg_parse (&q, all_reg_maps[old_type].htab)
- != arm_reg_parse (&q, all_reg_maps[new_type].htab)))
- as_warn (_("ignoring redefinition of register alias '%s'"),
- copy_of_str);
-
- }
- }
- else
- as_warn (_("ignoring incomplete .req pseuso op"));
-
- *p = c;
- return 1;
- }
-
- *p = c;
- return 0;
-}
-
-static void
-set_constant_flonums (void)
-{
- int i;
-
- for (i = 0; i < NUM_FLOAT_VALS; i++)
- if (atof_ieee ((char *) fp_const[i], 'x', fp_values[i]) == NULL)
- abort ();
-}
-
-\f
-static const struct asm_opcode insns[] =
-{
- /* Core ARM Instructions. */
- {"and", 0xe0000000, 3, ARM_EXT_V1, do_arit},
- {"ands", 0xe0100000, 3, ARM_EXT_V1, do_arit},
- {"eor", 0xe0200000, 3, ARM_EXT_V1, do_arit},
- {"eors", 0xe0300000, 3, ARM_EXT_V1, do_arit},
- {"sub", 0xe0400000, 3, ARM_EXT_V1, do_arit},
- {"subs", 0xe0500000, 3, ARM_EXT_V1, do_arit},
- {"rsb", 0xe0600000, 3, ARM_EXT_V1, do_arit},
- {"rsbs", 0xe0700000, 3, ARM_EXT_V1, do_arit},
- {"add", 0xe0800000, 3, ARM_EXT_V1, do_arit},
- {"adds", 0xe0900000, 3, ARM_EXT_V1, do_arit},
- {"adc", 0xe0a00000, 3, ARM_EXT_V1, do_arit},
- {"adcs", 0xe0b00000, 3, ARM_EXT_V1, do_arit},
- {"sbc", 0xe0c00000, 3, ARM_EXT_V1, do_arit},
- {"sbcs", 0xe0d00000, 3, ARM_EXT_V1, do_arit},
- {"rsc", 0xe0e00000, 3, ARM_EXT_V1, do_arit},
- {"rscs", 0xe0f00000, 3, ARM_EXT_V1, do_arit},
- {"orr", 0xe1800000, 3, ARM_EXT_V1, do_arit},
- {"orrs", 0xe1900000, 3, ARM_EXT_V1, do_arit},
- {"bic", 0xe1c00000, 3, ARM_EXT_V1, do_arit},
- {"bics", 0xe1d00000, 3, ARM_EXT_V1, do_arit},
-
- {"tst", 0xe1100000, 3, ARM_EXT_V1, do_cmp},
- {"tsts", 0xe1100000, 3, ARM_EXT_V1, do_cmp},
- {"tstp", 0xe110f000, 3, ARM_EXT_V1, do_cmp},
- {"teq", 0xe1300000, 3, ARM_EXT_V1, do_cmp},
- {"teqs", 0xe1300000, 3, ARM_EXT_V1, do_cmp},
- {"teqp", 0xe130f000, 3, ARM_EXT_V1, do_cmp},
- {"cmp", 0xe1500000, 3, ARM_EXT_V1, do_cmp},
- {"cmps", 0xe1500000, 3, ARM_EXT_V1, do_cmp},
- {"cmpp", 0xe150f000, 3, ARM_EXT_V1, do_cmp},
- {"cmn", 0xe1700000, 3, ARM_EXT_V1, do_cmp},
- {"cmns", 0xe1700000, 3, ARM_EXT_V1, do_cmp},
- {"cmnp", 0xe170f000, 3, ARM_EXT_V1, do_cmp},
-
- {"mov", 0xe1a00000, 3, ARM_EXT_V1, do_mov},
- {"movs", 0xe1b00000, 3, ARM_EXT_V1, do_mov},
- {"mvn", 0xe1e00000, 3, ARM_EXT_V1, do_mov},
- {"mvns", 0xe1f00000, 3, ARM_EXT_V1, do_mov},
-
- {"ldr", 0xe4100000, 3, ARM_EXT_V1, do_ldst},
- {"ldrb", 0xe4500000, 3, ARM_EXT_V1, do_ldst},
- {"ldrt", 0xe4300000, 3, ARM_EXT_V1, do_ldstt},
- {"ldrbt", 0xe4700000, 3, ARM_EXT_V1, do_ldstt},
- {"str", 0xe4000000, 3, ARM_EXT_V1, do_ldst},
- {"strb", 0xe4400000, 3, ARM_EXT_V1, do_ldst},
- {"strt", 0xe4200000, 3, ARM_EXT_V1, do_ldstt},
- {"strbt", 0xe4600000, 3, ARM_EXT_V1, do_ldstt},
-
- {"stmia", 0xe8800000, 3, ARM_EXT_V1, do_ldmstm},
- {"stmib", 0xe9800000, 3, ARM_EXT_V1, do_ldmstm},
- {"stmda", 0xe8000000, 3, ARM_EXT_V1, do_ldmstm},
- {"stmdb", 0xe9000000, 3, ARM_EXT_V1, do_ldmstm},
- {"stmfd", 0xe9000000, 3, ARM_EXT_V1, do_ldmstm},
- {"stmfa", 0xe9800000, 3, ARM_EXT_V1, do_ldmstm},
- {"stmea", 0xe8800000, 3, ARM_EXT_V1, do_ldmstm},
- {"stmed", 0xe8000000, 3, ARM_EXT_V1, do_ldmstm},
-
- {"ldmia", 0xe8900000, 3, ARM_EXT_V1, do_ldmstm},
- {"ldmib", 0xe9900000, 3, ARM_EXT_V1, do_ldmstm},
- {"ldmda", 0xe8100000, 3, ARM_EXT_V1, do_ldmstm},
- {"ldmdb", 0xe9100000, 3, ARM_EXT_V1, do_ldmstm},
- {"ldmfd", 0xe8900000, 3, ARM_EXT_V1, do_ldmstm},
- {"ldmfa", 0xe8100000, 3, ARM_EXT_V1, do_ldmstm},
- {"ldmea", 0xe9100000, 3, ARM_EXT_V1, do_ldmstm},
- {"ldmed", 0xe9900000, 3, ARM_EXT_V1, do_ldmstm},
-
- {"swi", 0xef000000, 3, ARM_EXT_V1, do_swi},
-#ifdef TE_WINCE
- /* XXX This is the wrong place to do this. Think multi-arch. */
- {"bl", 0xeb000000, 2, ARM_EXT_V1, do_branch},
- {"b", 0xea000000, 1, ARM_EXT_V1, do_branch},
-#else
- {"bl", 0xebfffffe, 2, ARM_EXT_V1, do_branch},
- {"b", 0xeafffffe, 1, ARM_EXT_V1, do_branch},
-#endif
-
- /* Pseudo ops. */
- {"adr", 0xe28f0000, 3, ARM_EXT_V1, do_adr},
- {"adrl", 0xe28f0000, 3, ARM_EXT_V1, do_adrl},
- {"nop", 0xe1a00000, 3, ARM_EXT_V1, do_nop},
-
- /* ARM 2 multiplies. */
- {"mul", 0xe0000090, 3, ARM_EXT_V2, do_mul},
- {"muls", 0xe0100090, 3, ARM_EXT_V2, do_mul},
- {"mla", 0xe0200090, 3, ARM_EXT_V2, do_mla},
- {"mlas", 0xe0300090, 3, ARM_EXT_V2, do_mla},
-
- /* Generic coprocessor instructions. */
- {"cdp", 0xee000000, 3, ARM_EXT_V2, do_cdp},
- {"ldc", 0xec100000, 3, ARM_EXT_V2, do_lstc},
- {"ldcl", 0xec500000, 3, ARM_EXT_V2, do_lstc},
- {"stc", 0xec000000, 3, ARM_EXT_V2, do_lstc},
- {"stcl", 0xec400000, 3, ARM_EXT_V2, do_lstc},
- {"mcr", 0xee000010, 3, ARM_EXT_V2, do_co_reg},
- {"mrc", 0xee100010, 3, ARM_EXT_V2, do_co_reg},
-
- /* ARM 3 - swp instructions. */
- {"swp", 0xe1000090, 3, ARM_EXT_V2S, do_swap},
- {"swpb", 0xe1400090, 3, ARM_EXT_V2S, do_swap},
-
- /* ARM 6 Status register instructions. */
- {"mrs", 0xe10f0000, 3, ARM_EXT_V3, do_mrs},
- {"msr", 0xe120f000, 3, ARM_EXT_V3, do_msr},
- /* ScottB: our code uses 0xe128f000 for msr.
- NickC: but this is wrong because the bits 16 through 19 are
- handled by the PSR_xxx defines above. */
-
- /* ARM 7M long multiplies. */
- {"smull", 0xe0c00090, 5, ARM_EXT_V3M, do_mull},
- {"smulls", 0xe0d00090, 5, ARM_EXT_V3M, do_mull},
- {"umull", 0xe0800090, 5, ARM_EXT_V3M, do_mull},
- {"umulls", 0xe0900090, 5, ARM_EXT_V3M, do_mull},
- {"smlal", 0xe0e00090, 5, ARM_EXT_V3M, do_mull},
- {"smlals", 0xe0f00090, 5, ARM_EXT_V3M, do_mull},
- {"umlal", 0xe0a00090, 5, ARM_EXT_V3M, do_mull},
- {"umlals", 0xe0b00090, 5, ARM_EXT_V3M, do_mull},
-
- /* ARM Architecture 4. */
- {"ldrh", 0xe01000b0, 3, ARM_EXT_V4, do_ldstv4},
- {"ldrsh", 0xe01000f0, 3, ARM_EXT_V4, do_ldstv4},
- {"ldrsb", 0xe01000d0, 3, ARM_EXT_V4, do_ldstv4},
- {"strh", 0xe00000b0, 3, ARM_EXT_V4, do_ldstv4},
-
- /* ARM Architecture 4T. */
- /* Note: bx (and blx) are required on V5, even if the processor does
- not support Thumb. */
- {"bx", 0xe12fff10, 2, ARM_EXT_V4T | ARM_EXT_V5, do_bx},
-
- /* ARM Architecture 5T. */
- /* Note: blx has 2 variants, so the .value is set dynamically.
- Only one of the variants has conditional execution. */
- {"blx", 0xe0000000, 3, ARM_EXT_V5, do_blx},
- {"clz", 0xe16f0f10, 3, ARM_EXT_V5, do_clz},
- {"bkpt", 0xe1200070, 0, ARM_EXT_V5, do_bkpt},
- {"ldc2", 0xfc100000, 0, ARM_EXT_V5, do_lstc2},
- {"ldc2l", 0xfc500000, 0, ARM_EXT_V5, do_lstc2},
- {"stc2", 0xfc000000, 0, ARM_EXT_V5, do_lstc2},
- {"stc2l", 0xfc400000, 0, ARM_EXT_V5, do_lstc2},
- {"cdp2", 0xfe000000, 0, ARM_EXT_V5, do_cdp2},
- {"mcr2", 0xfe000010, 0, ARM_EXT_V5, do_co_reg2},
- {"mrc2", 0xfe100010, 0, ARM_EXT_V5, do_co_reg2},
-
- /* ARM Architecture 5TExP. */
- {"smlabb", 0xe1000080, 6, ARM_EXT_V5ExP, do_smla},
- {"smlatb", 0xe10000a0, 6, ARM_EXT_V5ExP, do_smla},
- {"smlabt", 0xe10000c0, 6, ARM_EXT_V5ExP, do_smla},
- {"smlatt", 0xe10000e0, 6, ARM_EXT_V5ExP, do_smla},
-
- {"smlawb", 0xe1200080, 6, ARM_EXT_V5ExP, do_smla},
- {"smlawt", 0xe12000c0, 6, ARM_EXT_V5ExP, do_smla},
-
- {"smlalbb", 0xe1400080, 7, ARM_EXT_V5ExP, do_smlal},
- {"smlaltb", 0xe14000a0, 7, ARM_EXT_V5ExP, do_smlal},
- {"smlalbt", 0xe14000c0, 7, ARM_EXT_V5ExP, do_smlal},
- {"smlaltt", 0xe14000e0, 7, ARM_EXT_V5ExP, do_smlal},
-
- {"smulbb", 0xe1600080, 6, ARM_EXT_V5ExP, do_smul},
- {"smultb", 0xe16000a0, 6, ARM_EXT_V5ExP, do_smul},
- {"smulbt", 0xe16000c0, 6, ARM_EXT_V5ExP, do_smul},
- {"smultt", 0xe16000e0, 6, ARM_EXT_V5ExP, do_smul},
-
- {"smulwb", 0xe12000a0, 6, ARM_EXT_V5ExP, do_smul},
- {"smulwt", 0xe12000e0, 6, ARM_EXT_V5ExP, do_smul},
-
- {"qadd", 0xe1000050, 4, ARM_EXT_V5ExP, do_qadd},
- {"qdadd", 0xe1400050, 5, ARM_EXT_V5ExP, do_qadd},
- {"qsub", 0xe1200050, 4, ARM_EXT_V5ExP, do_qadd},
- {"qdsub", 0xe1600050, 5, ARM_EXT_V5ExP, do_qadd},
-
- /* ARM Architecture 5TE. */
- {"pld", 0xf450f000, 0, ARM_EXT_V5E, do_pld},
- {"ldrd", 0xe00000d0, 3, ARM_EXT_V5E, do_ldrd},
- {"strd", 0xe00000f0, 3, ARM_EXT_V5E, do_ldrd},
-
- {"mcrr", 0xec400000, 4, ARM_EXT_V5E, do_co_reg2c},
- {"mrrc", 0xec500000, 4, ARM_EXT_V5E, do_co_reg2c},
-
- /* ARM Architecture 5TEJ. */
- {"bxj", 0xe12fff20, 3, ARM_EXT_V5J, do_bxj},
-
- /* ARM V6. */
- { "cps", 0xf1020000, 0, ARM_EXT_V6, do_cps},
- { "cpsie", 0xf1080000, 0, ARM_EXT_V6, do_cpsi},
- { "cpsid", 0xf10C0000, 0, ARM_EXT_V6, do_cpsi},
- { "ldrex", 0xe1900f9f, 5, ARM_EXT_V6, do_ldrex},
- { "mcrr2", 0xfc400000, 0, ARM_EXT_V6, do_co_reg2c},
- { "mrrc2", 0xfc500000, 0, ARM_EXT_V6, do_co_reg2c},
- { "pkhbt", 0xe6800010, 5, ARM_EXT_V6, do_pkhbt},
- { "pkhtb", 0xe6800050, 5, ARM_EXT_V6, do_pkhtb},
- { "qadd16", 0xe6200f10, 6, ARM_EXT_V6, do_qadd16},
- { "qadd8", 0xe6200f90, 5, ARM_EXT_V6, do_qadd16},
- { "qaddsubx", 0xe6200f30, 8, ARM_EXT_V6, do_qadd16},
- { "qsub16", 0xe6200f70, 6, ARM_EXT_V6, do_qadd16},
- { "qsub8", 0xe6200ff0, 5, ARM_EXT_V6, do_qadd16},
- { "qsubaddx", 0xe6200f50, 8, ARM_EXT_V6, do_qadd16},
- { "sadd16", 0xe6100f10, 6, ARM_EXT_V6, do_qadd16},
- { "sadd8", 0xe6100f90, 5, ARM_EXT_V6, do_qadd16},
- { "saddsubx", 0xe6100f30, 8, ARM_EXT_V6, do_qadd16},
- { "shadd16", 0xe6300f10, 7, ARM_EXT_V6, do_qadd16},
- { "shadd8", 0xe6300f90, 6, ARM_EXT_V6, do_qadd16},
- { "shaddsubx", 0xe6300f30, 9, ARM_EXT_V6, do_qadd16},
- { "shsub16", 0xe6300f70, 7, ARM_EXT_V6, do_qadd16},
- { "shsub8", 0xe6300ff0, 6, ARM_EXT_V6, do_qadd16},
- { "shsubaddx", 0xe6300f50, 9, ARM_EXT_V6, do_qadd16},
- { "ssub16", 0xe6100f70, 6, ARM_EXT_V6, do_qadd16},
- { "ssub8", 0xe6100ff0, 5, ARM_EXT_V6, do_qadd16},
- { "ssubaddx", 0xe6100f50, 8, ARM_EXT_V6, do_qadd16},
- { "uadd16", 0xe6500f10, 6, ARM_EXT_V6, do_qadd16},
- { "uadd8", 0xe6500f90, 5, ARM_EXT_V6, do_qadd16},
- { "uaddsubx", 0xe6500f30, 8, ARM_EXT_V6, do_qadd16},
- { "uhadd16", 0xe6700f10, 7, ARM_EXT_V6, do_qadd16},
- { "uhadd8", 0xe6700f90, 6, ARM_EXT_V6, do_qadd16},
- { "uhaddsubx", 0xe6700f30, 9, ARM_EXT_V6, do_qadd16},
- { "uhsub16", 0xe6700f70, 7, ARM_EXT_V6, do_qadd16},
- { "uhsub8", 0xe6700ff0, 6, ARM_EXT_V6, do_qadd16},
- { "uhsubaddx", 0xe6700f50, 9, ARM_EXT_V6, do_qadd16},
- { "uqadd16", 0xe6600f10, 7, ARM_EXT_V6, do_qadd16},
- { "uqadd8", 0xe6600f90, 6, ARM_EXT_V6, do_qadd16},
- { "uqaddsubx", 0xe6600f30, 9, ARM_EXT_V6, do_qadd16},
- { "uqsub16", 0xe6600f70, 7, ARM_EXT_V6, do_qadd16},
- { "uqsub8", 0xe6600ff0, 6, ARM_EXT_V6, do_qadd16},
- { "uqsubaddx", 0xe6600f50, 9, ARM_EXT_V6, do_qadd16},
- { "usub16", 0xe6500f70, 6, ARM_EXT_V6, do_qadd16},
- { "usub8", 0xe6500ff0, 5, ARM_EXT_V6, do_qadd16},
- { "usubaddx", 0xe6500f50, 8, ARM_EXT_V6, do_qadd16},
- { "rev", 0xe6bf0f30, 3, ARM_EXT_V6, do_rev},
- { "rev16", 0xe6bf0fb0, 5, ARM_EXT_V6, do_rev},
- { "revsh", 0xe6ff0fb0, 5, ARM_EXT_V6, do_rev},
- { "rfeia", 0xf8900a00, 0, ARM_EXT_V6, do_rfe},
- { "rfeib", 0xf9900a00, 0, ARM_EXT_V6, do_rfe},
- { "rfeda", 0xf8100a00, 0, ARM_EXT_V6, do_rfe},
- { "rfedb", 0xf9100a00, 0, ARM_EXT_V6, do_rfe},
- { "rfefd", 0xf8900a00, 0, ARM_EXT_V6, do_rfe},
- { "rfefa", 0xf9900a00, 0, ARM_EXT_V6, do_rfe},
- { "rfeea", 0xf8100a00, 0, ARM_EXT_V6, do_rfe},
- { "rfeed", 0xf9100a00, 0, ARM_EXT_V6, do_rfe},
- { "sxtah", 0xe6b00070, 5, ARM_EXT_V6, do_sxtah},
- { "sxtab16", 0xe6800070, 7, ARM_EXT_V6, do_sxtah},
- { "sxtab", 0xe6a00070, 5, ARM_EXT_V6, do_sxtah},
- { "sxth", 0xe6bf0070, 4, ARM_EXT_V6, do_sxth},
- { "sxtb16", 0xe68f0070, 6, ARM_EXT_V6, do_sxth},
- { "sxtb", 0xe6af0070, 4, ARM_EXT_V6, do_sxth},
- { "uxtah", 0xe6f00070, 5, ARM_EXT_V6, do_sxtah},
- { "uxtab16", 0xe6c00070, 7, ARM_EXT_V6, do_sxtah},
- { "uxtab", 0xe6e00070, 5, ARM_EXT_V6, do_sxtah},
- { "uxth", 0xe6ff0070, 4, ARM_EXT_V6, do_sxth},
- { "uxtb16", 0xe6cf0070, 6, ARM_EXT_V6, do_sxth},
- { "uxtb", 0xe6ef0070, 4, ARM_EXT_V6, do_sxth},
- { "sel", 0xe68000b0, 3, ARM_EXT_V6, do_qadd16},
- { "setend", 0xf1010000, 0, ARM_EXT_V6, do_setend},
- { "smlad", 0xe7000010, 5, ARM_EXT_V6, do_smlad},
- { "smladx", 0xe7000030, 6, ARM_EXT_V6, do_smlad},
- { "smlald", 0xe7400010, 6, ARM_EXT_V6, do_smlald},
- { "smlaldx", 0xe7400030, 7, ARM_EXT_V6, do_smlald},
- { "smlsd", 0xe7000050, 5, ARM_EXT_V6, do_smlad},
- { "smlsdx", 0xe7000070, 6, ARM_EXT_V6, do_smlad},
- { "smlsld", 0xe7400050, 6, ARM_EXT_V6, do_smlald},
- { "smlsldx", 0xe7400070, 7, ARM_EXT_V6, do_smlald},
- { "smmla", 0xe7500010, 5, ARM_EXT_V6, do_smlad},
- { "smmlar", 0xe7500030, 6, ARM_EXT_V6, do_smlad},
- { "smmls", 0xe75000d0, 5, ARM_EXT_V6, do_smlad},
- { "smmlsr", 0xe75000f0, 6, ARM_EXT_V6, do_smlad},
- { "smmul", 0xe750f010, 5, ARM_EXT_V6, do_smmul},
- { "smmulr", 0xe750f030, 6, ARM_EXT_V6, do_smmul},
- { "smuad", 0xe700f010, 5, ARM_EXT_V6, do_smmul},
- { "smuadx", 0xe700f030, 6, ARM_EXT_V6, do_smmul},
- { "smusd", 0xe700f050, 5, ARM_EXT_V6, do_smmul},
- { "smusdx", 0xe700f070, 6, ARM_EXT_V6, do_smmul},
- { "srsia", 0xf8cd0500, 0, ARM_EXT_V6, do_srs},
- { "srsib", 0xf9cd0500, 0, ARM_EXT_V6, do_srs},
- { "srsda", 0xf84d0500, 0, ARM_EXT_V6, do_srs},
- { "srsdb", 0xf94d0500, 0, ARM_EXT_V6, do_srs},
- { "ssat", 0xe6a00010, 4, ARM_EXT_V6, do_ssat},
- { "ssat16", 0xe6a00f30, 6, ARM_EXT_V6, do_ssat16},
- { "strex", 0xe1800f90, 5, ARM_EXT_V6, do_strex},
- { "umaal", 0xe0400090, 5, ARM_EXT_V6, do_umaal},
- { "usad8", 0xe780f010, 5, ARM_EXT_V6, do_smmul},
- { "usada8", 0xe7800010, 6, ARM_EXT_V6, do_smlad},
- { "usat", 0xe6e00010, 4, ARM_EXT_V6, do_usat},
- { "usat16", 0xe6e00f30, 6, ARM_EXT_V6, do_usat16},
-
- /* ARM V6K. */
- { "clrex", 0xf57ff01f, 0, ARM_EXT_V6K, do_empty},
- { "ldrexb", 0xe1d00f9f, 6, ARM_EXT_V6K, do_ldrex},
- { "ldrexd", 0xe1b00f9f, 6, ARM_EXT_V6K, do_ldrex},
- { "ldrexh", 0xe1f00f9f, 6, ARM_EXT_V6K, do_ldrex},
- { "sev", 0xe320f004, 3, ARM_EXT_V6K, do_empty},
- { "strexb", 0xe1c00f90, 6, ARM_EXT_V6K, do_strex},
- { "strexd", 0xe1a00f90, 6, ARM_EXT_V6K, do_strex},
- { "strexh", 0xe1e00f90, 6, ARM_EXT_V6K, do_strex},
- { "wfe", 0xe320f002, 3, ARM_EXT_V6K, do_empty},
- { "wfi", 0xe320f003, 3, ARM_EXT_V6K, do_empty},
- { "yield", 0xe320f001, 5, ARM_EXT_V6K, do_empty},
-
- /* ARM V6Z. */
- { "smi", 0xe1600070, 3, ARM_EXT_V6Z, do_smi},
-
- /* ARM V6T2. */
- { "bfc", 0xe7c0001f, 3, ARM_EXT_V6T2, do_bfc},
- { "bfi", 0xe7c00010, 3, ARM_EXT_V6T2, do_bfi},
- { "mls", 0xe0600090, 3, ARM_EXT_V6T2, do_mls},
- { "movw", 0xe3000000, 4, ARM_EXT_V6T2, do_mov16},
- { "movt", 0xe3400000, 4, ARM_EXT_V6T2, do_mov16},
- { "rbit", 0xe3ff0f30, 4, ARM_EXT_V6T2, do_rbit},
- { "sbfx", 0xe7a00050, 4, ARM_EXT_V6T2, do_bfx},
- { "ubfx", 0xe7e00050, 4, ARM_EXT_V6T2, do_bfx},
-
- { "ldrht", 0xe03000b0, 3, ARM_EXT_V6T2, do_ldsttv4},
- { "ldrsht", 0xe03000f0, 3, ARM_EXT_V6T2, do_ldsttv4},
- { "ldrsbt", 0xe03000d0, 3, ARM_EXT_V6T2, do_ldsttv4},
- { "strht", 0xe02000b0, 3, ARM_EXT_V6T2, do_ldsttv4},
-
- /* Core FPA instruction set (V1). */
- {"wfs", 0xee200110, 3, FPU_FPA_EXT_V1, do_fpa_ctrl},
- {"rfs", 0xee300110, 3, FPU_FPA_EXT_V1, do_fpa_ctrl},
- {"wfc", 0xee400110, 3, FPU_FPA_EXT_V1, do_fpa_ctrl},
- {"rfc", 0xee500110, 3, FPU_FPA_EXT_V1, do_fpa_ctrl},
-
- {"ldfs", 0xec100100, 3, FPU_FPA_EXT_V1, do_fpa_ldst},
- {"ldfd", 0xec108100, 3, FPU_FPA_EXT_V1, do_fpa_ldst},
- {"ldfe", 0xec500100, 3, FPU_FPA_EXT_V1, do_fpa_ldst},
- {"ldfp", 0xec508100, 3, FPU_FPA_EXT_V1, do_fpa_ldst},
-
- {"stfs", 0xec000100, 3, FPU_FPA_EXT_V1, do_fpa_ldst},
- {"stfd", 0xec008100, 3, FPU_FPA_EXT_V1, do_fpa_ldst},
- {"stfe", 0xec400100, 3, FPU_FPA_EXT_V1, do_fpa_ldst},
- {"stfp", 0xec408100, 3, FPU_FPA_EXT_V1, do_fpa_ldst},
-
- {"mvfs", 0xee008100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"mvfsp", 0xee008120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"mvfsm", 0xee008140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"mvfsz", 0xee008160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"mvfd", 0xee008180, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"mvfdp", 0xee0081a0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"mvfdm", 0xee0081c0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"mvfdz", 0xee0081e0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"mvfe", 0xee088100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"mvfep", 0xee088120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"mvfem", 0xee088140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"mvfez", 0xee088160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
-
- {"mnfs", 0xee108100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"mnfsp", 0xee108120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"mnfsm", 0xee108140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"mnfsz", 0xee108160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"mnfd", 0xee108180, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"mnfdp", 0xee1081a0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"mnfdm", 0xee1081c0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"mnfdz", 0xee1081e0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"mnfe", 0xee188100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"mnfep", 0xee188120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"mnfem", 0xee188140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"mnfez", 0xee188160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
-
- {"abss", 0xee208100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"abssp", 0xee208120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"abssm", 0xee208140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"abssz", 0xee208160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"absd", 0xee208180, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"absdp", 0xee2081a0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"absdm", 0xee2081c0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"absdz", 0xee2081e0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"abse", 0xee288100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"absep", 0xee288120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"absem", 0xee288140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"absez", 0xee288160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
-
- {"rnds", 0xee308100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"rndsp", 0xee308120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"rndsm", 0xee308140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"rndsz", 0xee308160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"rndd", 0xee308180, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"rnddp", 0xee3081a0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"rnddm", 0xee3081c0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"rnddz", 0xee3081e0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"rnde", 0xee388100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"rndep", 0xee388120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"rndem", 0xee388140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"rndez", 0xee388160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
-
- {"sqts", 0xee408100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"sqtsp", 0xee408120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"sqtsm", 0xee408140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"sqtsz", 0xee408160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"sqtd", 0xee408180, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"sqtdp", 0xee4081a0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"sqtdm", 0xee4081c0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"sqtdz", 0xee4081e0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"sqte", 0xee488100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"sqtep", 0xee488120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"sqtem", 0xee488140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"sqtez", 0xee488160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
-
- {"logs", 0xee508100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"logsp", 0xee508120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"logsm", 0xee508140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"logsz", 0xee508160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"logd", 0xee508180, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"logdp", 0xee5081a0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"logdm", 0xee5081c0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"logdz", 0xee5081e0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"loge", 0xee588100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"logep", 0xee588120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"logem", 0xee588140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"logez", 0xee588160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
-
- {"lgns", 0xee608100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"lgnsp", 0xee608120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"lgnsm", 0xee608140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"lgnsz", 0xee608160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"lgnd", 0xee608180, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"lgndp", 0xee6081a0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"lgndm", 0xee6081c0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"lgndz", 0xee6081e0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"lgne", 0xee688100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"lgnep", 0xee688120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"lgnem", 0xee688140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"lgnez", 0xee688160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
-
- {"exps", 0xee708100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"expsp", 0xee708120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"expsm", 0xee708140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"expsz", 0xee708160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"expd", 0xee708180, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"expdp", 0xee7081a0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"expdm", 0xee7081c0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"expdz", 0xee7081e0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"expe", 0xee788100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"expep", 0xee788120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"expem", 0xee788140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"expdz", 0xee788160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
-
- {"sins", 0xee808100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"sinsp", 0xee808120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"sinsm", 0xee808140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"sinsz", 0xee808160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"sind", 0xee808180, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"sindp", 0xee8081a0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"sindm", 0xee8081c0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"sindz", 0xee8081e0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"sine", 0xee888100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"sinep", 0xee888120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"sinem", 0xee888140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"sinez", 0xee888160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
-
- {"coss", 0xee908100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"cossp", 0xee908120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"cossm", 0xee908140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"cossz", 0xee908160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"cosd", 0xee908180, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"cosdp", 0xee9081a0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"cosdm", 0xee9081c0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"cosdz", 0xee9081e0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"cose", 0xee988100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"cosep", 0xee988120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"cosem", 0xee988140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"cosez", 0xee988160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
-
- {"tans", 0xeea08100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"tansp", 0xeea08120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"tansm", 0xeea08140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"tansz", 0xeea08160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"tand", 0xeea08180, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"tandp", 0xeea081a0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"tandm", 0xeea081c0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"tandz", 0xeea081e0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"tane", 0xeea88100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"tanep", 0xeea88120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"tanem", 0xeea88140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"tanez", 0xeea88160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
-
- {"asns", 0xeeb08100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"asnsp", 0xeeb08120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"asnsm", 0xeeb08140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"asnsz", 0xeeb08160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"asnd", 0xeeb08180, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"asndp", 0xeeb081a0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"asndm", 0xeeb081c0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"asndz", 0xeeb081e0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"asne", 0xeeb88100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"asnep", 0xeeb88120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"asnem", 0xeeb88140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"asnez", 0xeeb88160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
-
- {"acss", 0xeec08100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"acssp", 0xeec08120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"acssm", 0xeec08140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"acssz", 0xeec08160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"acsd", 0xeec08180, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"acsdp", 0xeec081a0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"acsdm", 0xeec081c0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"acsdz", 0xeec081e0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"acse", 0xeec88100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"acsep", 0xeec88120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"acsem", 0xeec88140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"acsez", 0xeec88160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
-
- {"atns", 0xeed08100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"atnsp", 0xeed08120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"atnsm", 0xeed08140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"atnsz", 0xeed08160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"atnd", 0xeed08180, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"atndp", 0xeed081a0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"atndm", 0xeed081c0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"atndz", 0xeed081e0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"atne", 0xeed88100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"atnep", 0xeed88120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"atnem", 0xeed88140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"atnez", 0xeed88160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
-
- {"urds", 0xeee08100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"urdsp", 0xeee08120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"urdsm", 0xeee08140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"urdsz", 0xeee08160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"urdd", 0xeee08180, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"urddp", 0xeee081a0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"urddm", 0xeee081c0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"urddz", 0xeee081e0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"urde", 0xeee88100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"urdep", 0xeee88120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"urdem", 0xeee88140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"urdez", 0xeee88160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
-
- {"nrms", 0xeef08100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"nrmsp", 0xeef08120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"nrmsm", 0xeef08140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"nrmsz", 0xeef08160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"nrmd", 0xeef08180, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"nrmdp", 0xeef081a0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"nrmdm", 0xeef081c0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"nrmdz", 0xeef081e0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"nrme", 0xeef88100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"nrmep", 0xeef88120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"nrmem", 0xeef88140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
- {"nrmez", 0xeef88160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
-
- {"adfs", 0xee000100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"adfsp", 0xee000120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"adfsm", 0xee000140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"adfsz", 0xee000160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"adfd", 0xee000180, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"adfdp", 0xee0001a0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"adfdm", 0xee0001c0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"adfdz", 0xee0001e0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"adfe", 0xee080100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"adfep", 0xee080120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"adfem", 0xee080140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"adfez", 0xee080160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
-
- {"sufs", 0xee200100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"sufsp", 0xee200120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"sufsm", 0xee200140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"sufsz", 0xee200160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"sufd", 0xee200180, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"sufdp", 0xee2001a0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"sufdm", 0xee2001c0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"sufdz", 0xee2001e0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"sufe", 0xee280100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"sufep", 0xee280120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"sufem", 0xee280140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"sufez", 0xee280160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
-
- {"rsfs", 0xee300100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"rsfsp", 0xee300120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"rsfsm", 0xee300140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"rsfsz", 0xee300160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"rsfd", 0xee300180, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"rsfdp", 0xee3001a0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"rsfdm", 0xee3001c0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"rsfdz", 0xee3001e0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"rsfe", 0xee380100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"rsfep", 0xee380120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"rsfem", 0xee380140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"rsfez", 0xee380160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
-
- {"mufs", 0xee100100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"mufsp", 0xee100120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"mufsm", 0xee100140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"mufsz", 0xee100160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"mufd", 0xee100180, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"mufdp", 0xee1001a0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"mufdm", 0xee1001c0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"mufdz", 0xee1001e0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"mufe", 0xee180100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"mufep", 0xee180120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"mufem", 0xee180140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"mufez", 0xee180160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
-
- {"dvfs", 0xee400100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"dvfsp", 0xee400120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"dvfsm", 0xee400140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"dvfsz", 0xee400160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"dvfd", 0xee400180, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"dvfdp", 0xee4001a0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"dvfdm", 0xee4001c0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"dvfdz", 0xee4001e0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"dvfe", 0xee480100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"dvfep", 0xee480120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"dvfem", 0xee480140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"dvfez", 0xee480160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
-
- {"rdfs", 0xee500100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"rdfsp", 0xee500120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"rdfsm", 0xee500140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"rdfsz", 0xee500160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"rdfd", 0xee500180, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"rdfdp", 0xee5001a0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"rdfdm", 0xee5001c0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"rdfdz", 0xee5001e0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"rdfe", 0xee580100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"rdfep", 0xee580120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"rdfem", 0xee580140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"rdfez", 0xee580160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
-
- {"pows", 0xee600100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"powsp", 0xee600120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"powsm", 0xee600140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"powsz", 0xee600160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"powd", 0xee600180, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"powdp", 0xee6001a0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"powdm", 0xee6001c0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"powdz", 0xee6001e0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"powe", 0xee680100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"powep", 0xee680120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"powem", 0xee680140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"powez", 0xee680160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
-
- {"rpws", 0xee700100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"rpwsp", 0xee700120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"rpwsm", 0xee700140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"rpwsz", 0xee700160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"rpwd", 0xee700180, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"rpwdp", 0xee7001a0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"rpwdm", 0xee7001c0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"rpwdz", 0xee7001e0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"rpwe", 0xee780100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"rpwep", 0xee780120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"rpwem", 0xee780140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"rpwez", 0xee780160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
-
- {"rmfs", 0xee800100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"rmfsp", 0xee800120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"rmfsm", 0xee800140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"rmfsz", 0xee800160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"rmfd", 0xee800180, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"rmfdp", 0xee8001a0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"rmfdm", 0xee8001c0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"rmfdz", 0xee8001e0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"rmfe", 0xee880100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"rmfep", 0xee880120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"rmfem", 0xee880140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"rmfez", 0xee880160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
-
- {"fmls", 0xee900100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"fmlsp", 0xee900120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"fmlsm", 0xee900140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"fmlsz", 0xee900160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"fmld", 0xee900180, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"fmldp", 0xee9001a0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"fmldm", 0xee9001c0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"fmldz", 0xee9001e0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"fmle", 0xee980100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"fmlep", 0xee980120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"fmlem", 0xee980140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"fmlez", 0xee980160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
-
- {"fdvs", 0xeea00100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"fdvsp", 0xeea00120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"fdvsm", 0xeea00140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"fdvsz", 0xeea00160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"fdvd", 0xeea00180, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"fdvdp", 0xeea001a0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"fdvdm", 0xeea001c0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"fdvdz", 0xeea001e0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"fdve", 0xeea80100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"fdvep", 0xeea80120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"fdvem", 0xeea80140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"fdvez", 0xeea80160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
-
- {"frds", 0xeeb00100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"frdsp", 0xeeb00120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"frdsm", 0xeeb00140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"frdsz", 0xeeb00160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"frdd", 0xeeb00180, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"frddp", 0xeeb001a0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"frddm", 0xeeb001c0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"frddz", 0xeeb001e0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"frde", 0xeeb80100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"frdep", 0xeeb80120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"frdem", 0xeeb80140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"frdez", 0xeeb80160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
-
- {"pols", 0xeec00100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"polsp", 0xeec00120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"polsm", 0xeec00140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"polsz", 0xeec00160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"pold", 0xeec00180, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"poldp", 0xeec001a0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"poldm", 0xeec001c0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"poldz", 0xeec001e0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"pole", 0xeec80100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"polep", 0xeec80120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"polem", 0xeec80140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
- {"polez", 0xeec80160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
-
- {"cmf", 0xee90f110, 3, FPU_FPA_EXT_V1, do_fpa_cmp},
- {"cmfe", 0xeed0f110, 3, FPU_FPA_EXT_V1, do_fpa_cmp},
- {"cnf", 0xeeb0f110, 3, FPU_FPA_EXT_V1, do_fpa_cmp},
- {"cnfe", 0xeef0f110, 3, FPU_FPA_EXT_V1, do_fpa_cmp},
- /* The FPA10 data sheet suggests that the 'E' of cmfe/cnfe should
- not be an optional suffix, but part of the instruction. To be
- compatible, we accept either. */
- {"cmfe", 0xeed0f110, 4, FPU_FPA_EXT_V1, do_fpa_cmp},
- {"cnfe", 0xeef0f110, 4, FPU_FPA_EXT_V1, do_fpa_cmp},
-
- {"flts", 0xee000110, 3, FPU_FPA_EXT_V1, do_fpa_from_reg},
- {"fltsp", 0xee000130, 3, FPU_FPA_EXT_V1, do_fpa_from_reg},
- {"fltsm", 0xee000150, 3, FPU_FPA_EXT_V1, do_fpa_from_reg},
- {"fltsz", 0xee000170, 3, FPU_FPA_EXT_V1, do_fpa_from_reg},
- {"fltd", 0xee000190, 3, FPU_FPA_EXT_V1, do_fpa_from_reg},
- {"fltdp", 0xee0001b0, 3, FPU_FPA_EXT_V1, do_fpa_from_reg},
- {"fltdm", 0xee0001d0, 3, FPU_FPA_EXT_V1, do_fpa_from_reg},
- {"fltdz", 0xee0001f0, 3, FPU_FPA_EXT_V1, do_fpa_from_reg},
- {"flte", 0xee080110, 3, FPU_FPA_EXT_V1, do_fpa_from_reg},
- {"fltep", 0xee080130, 3, FPU_FPA_EXT_V1, do_fpa_from_reg},
- {"fltem", 0xee080150, 3, FPU_FPA_EXT_V1, do_fpa_from_reg},
- {"fltez", 0xee080170, 3, FPU_FPA_EXT_V1, do_fpa_from_reg},
-
- /* The implementation of the FIX instruction is broken on some
- assemblers, in that it accepts a precision specifier as well as a
- rounding specifier, despite the fact that this is meaningless.
- To be more compatible, we accept it as well, though of course it
- does not set any bits. */
- {"fix", 0xee100110, 3, FPU_FPA_EXT_V1, do_fpa_to_reg},
- {"fixp", 0xee100130, 3, FPU_FPA_EXT_V1, do_fpa_to_reg},
- {"fixm", 0xee100150, 3, FPU_FPA_EXT_V1, do_fpa_to_reg},
- {"fixz", 0xee100170, 3, FPU_FPA_EXT_V1, do_fpa_to_reg},
- {"fixsp", 0xee100130, 3, FPU_FPA_EXT_V1, do_fpa_to_reg},
- {"fixsm", 0xee100150, 3, FPU_FPA_EXT_V1, do_fpa_to_reg},
- {"fixsz", 0xee100170, 3, FPU_FPA_EXT_V1, do_fpa_to_reg},
- {"fixdp", 0xee100130, 3, FPU_FPA_EXT_V1, do_fpa_to_reg},
- {"fixdm", 0xee100150, 3, FPU_FPA_EXT_V1, do_fpa_to_reg},
- {"fixdz", 0xee100170, 3, FPU_FPA_EXT_V1, do_fpa_to_reg},
- {"fixep", 0xee100130, 3, FPU_FPA_EXT_V1, do_fpa_to_reg},
- {"fixem", 0xee100150, 3, FPU_FPA_EXT_V1, do_fpa_to_reg},
- {"fixez", 0xee100170, 3, FPU_FPA_EXT_V1, do_fpa_to_reg},
-
- /* Instructions that were new with the real FPA, call them V2. */
- {"lfm", 0xec100200, 3, FPU_FPA_EXT_V2, do_fpa_ldmstm},
- {"lfmfd", 0xec900200, 3, FPU_FPA_EXT_V2, do_fpa_ldmstm},
- {"lfmea", 0xed100200, 3, FPU_FPA_EXT_V2, do_fpa_ldmstm},
- {"sfm", 0xec000200, 3, FPU_FPA_EXT_V2, do_fpa_ldmstm},
- {"sfmfd", 0xed000200, 3, FPU_FPA_EXT_V2, do_fpa_ldmstm},
- {"sfmea", 0xec800200, 3, FPU_FPA_EXT_V2, do_fpa_ldmstm},
-
- /* VFP V1xD (single precision). */
- /* Moves and type conversions. */
- {"fcpys", 0xeeb00a40, 5, FPU_VFP_EXT_V1xD, do_vfp_sp_monadic},
- {"fmrs", 0xee100a10, 4, FPU_VFP_EXT_V1xD, do_vfp_reg_from_sp},
- {"fmsr", 0xee000a10, 4, FPU_VFP_EXT_V1xD, do_vfp_sp_from_reg},
- {"fmstat", 0xeef1fa10, 6, FPU_VFP_EXT_V1xD, do_empty},
- {"fsitos", 0xeeb80ac0, 6, FPU_VFP_EXT_V1xD, do_vfp_sp_monadic},
- {"fuitos", 0xeeb80a40, 6, FPU_VFP_EXT_V1xD, do_vfp_sp_monadic},
- {"ftosis", 0xeebd0a40, 6, FPU_VFP_EXT_V1xD, do_vfp_sp_monadic},
- {"ftosizs", 0xeebd0ac0, 7, FPU_VFP_EXT_V1xD, do_vfp_sp_monadic},
- {"ftouis", 0xeebc0a40, 6, FPU_VFP_EXT_V1xD, do_vfp_sp_monadic},
- {"ftouizs", 0xeebc0ac0, 7, FPU_VFP_EXT_V1xD, do_vfp_sp_monadic},
- {"fmrx", 0xeef00a10, 4, FPU_VFP_EXT_V1xD, do_vfp_reg_from_ctrl},
- {"fmxr", 0xeee00a10, 4, FPU_VFP_EXT_V1xD, do_vfp_ctrl_from_reg},
-
- /* Memory operations. */
- {"flds", 0xed100a00, 4, FPU_VFP_EXT_V1xD, do_vfp_sp_ldst},
- {"fsts", 0xed000a00, 4, FPU_VFP_EXT_V1xD, do_vfp_sp_ldst},
- {"fldmias", 0xec900a00, 7, FPU_VFP_EXT_V1xD, do_vfp_sp_ldstmia},
- {"fldmfds", 0xec900a00, 7, FPU_VFP_EXT_V1xD, do_vfp_sp_ldstmia},
- {"fldmdbs", 0xed300a00, 7, FPU_VFP_EXT_V1xD, do_vfp_sp_ldstmdb},
- {"fldmeas", 0xed300a00, 7, FPU_VFP_EXT_V1xD, do_vfp_sp_ldstmdb},
- {"fldmiax", 0xec900b00, 7, FPU_VFP_EXT_V1xD, do_vfp_xp_ldstmia},
- {"fldmfdx", 0xec900b00, 7, FPU_VFP_EXT_V1xD, do_vfp_xp_ldstmia},
- {"fldmdbx", 0xed300b00, 7, FPU_VFP_EXT_V1xD, do_vfp_xp_ldstmdb},
- {"fldmeax", 0xed300b00, 7, FPU_VFP_EXT_V1xD, do_vfp_xp_ldstmdb},
- {"fstmias", 0xec800a00, 7, FPU_VFP_EXT_V1xD, do_vfp_sp_ldstmia},
- {"fstmeas", 0xec800a00, 7, FPU_VFP_EXT_V1xD, do_vfp_sp_ldstmia},
- {"fstmdbs", 0xed200a00, 7, FPU_VFP_EXT_V1xD, do_vfp_sp_ldstmdb},
- {"fstmfds", 0xed200a00, 7, FPU_VFP_EXT_V1xD, do_vfp_sp_ldstmdb},
- {"fstmiax", 0xec800b00, 7, FPU_VFP_EXT_V1xD, do_vfp_xp_ldstmia},
- {"fstmeax", 0xec800b00, 7, FPU_VFP_EXT_V1xD, do_vfp_xp_ldstmia},
- {"fstmdbx", 0xed200b00, 7, FPU_VFP_EXT_V1xD, do_vfp_xp_ldstmdb},
- {"fstmfdx", 0xed200b00, 7, FPU_VFP_EXT_V1xD, do_vfp_xp_ldstmdb},
-
- /* Monadic operations. */
- {"fabss", 0xeeb00ac0, 5, FPU_VFP_EXT_V1xD, do_vfp_sp_monadic},
- {"fnegs", 0xeeb10a40, 5, FPU_VFP_EXT_V1xD, do_vfp_sp_monadic},
- {"fsqrts", 0xeeb10ac0, 6, FPU_VFP_EXT_V1xD, do_vfp_sp_monadic},
-
- /* Dyadic operations. */
- {"fadds", 0xee300a00, 5, FPU_VFP_EXT_V1xD, do_vfp_sp_dyadic},
- {"fsubs", 0xee300a40, 5, FPU_VFP_EXT_V1xD, do_vfp_sp_dyadic},
- {"fmuls", 0xee200a00, 5, FPU_VFP_EXT_V1xD, do_vfp_sp_dyadic},
- {"fdivs", 0xee800a00, 5, FPU_VFP_EXT_V1xD, do_vfp_sp_dyadic},
- {"fmacs", 0xee000a00, 5, FPU_VFP_EXT_V1xD, do_vfp_sp_dyadic},
- {"fmscs", 0xee100a00, 5, FPU_VFP_EXT_V1xD, do_vfp_sp_dyadic},
- {"fnmuls", 0xee200a40, 6, FPU_VFP_EXT_V1xD, do_vfp_sp_dyadic},
- {"fnmacs", 0xee000a40, 6, FPU_VFP_EXT_V1xD, do_vfp_sp_dyadic},
- {"fnmscs", 0xee100a40, 6, FPU_VFP_EXT_V1xD, do_vfp_sp_dyadic},
-
- /* Comparisons. */
- {"fcmps", 0xeeb40a40, 5, FPU_VFP_EXT_V1xD, do_vfp_sp_monadic},
- {"fcmpzs", 0xeeb50a40, 6, FPU_VFP_EXT_V1xD, do_vfp_sp_compare_z},
- {"fcmpes", 0xeeb40ac0, 6, FPU_VFP_EXT_V1xD, do_vfp_sp_monadic},
- {"fcmpezs", 0xeeb50ac0, 7, FPU_VFP_EXT_V1xD, do_vfp_sp_compare_z},
-
- /* VFP V1 (Double precision). */
- /* Moves and type conversions. */
- {"fcpyd", 0xeeb00b40, 5, FPU_VFP_EXT_V1, do_vfp_dp_monadic},
- {"fcvtds", 0xeeb70ac0, 6, FPU_VFP_EXT_V1, do_vfp_dp_sp_cvt},
- {"fcvtsd", 0xeeb70bc0, 6, FPU_VFP_EXT_V1, do_vfp_sp_dp_cvt},
- {"fmdhr", 0xee200b10, 5, FPU_VFP_EXT_V1, do_vfp_dp_from_reg},
- {"fmdlr", 0xee000b10, 5, FPU_VFP_EXT_V1, do_vfp_dp_from_reg},
- {"fmrdh", 0xee300b10, 5, FPU_VFP_EXT_V1, do_vfp_reg_from_dp},
- {"fmrdl", 0xee100b10, 5, FPU_VFP_EXT_V1, do_vfp_reg_from_dp},
- {"fsitod", 0xeeb80bc0, 6, FPU_VFP_EXT_V1, do_vfp_dp_sp_cvt},
- {"fuitod", 0xeeb80b40, 6, FPU_VFP_EXT_V1, do_vfp_dp_sp_cvt},
- {"ftosid", 0xeebd0b40, 6, FPU_VFP_EXT_V1, do_vfp_sp_dp_cvt},
- {"ftosizd", 0xeebd0bc0, 7, FPU_VFP_EXT_V1, do_vfp_sp_dp_cvt},
- {"ftouid", 0xeebc0b40, 6, FPU_VFP_EXT_V1, do_vfp_sp_dp_cvt},
- {"ftouizd", 0xeebc0bc0, 7, FPU_VFP_EXT_V1, do_vfp_sp_dp_cvt},
-
- /* Memory operations. */
- {"fldd", 0xed100b00, 4, FPU_VFP_EXT_V1, do_vfp_dp_ldst},
- {"fstd", 0xed000b00, 4, FPU_VFP_EXT_V1, do_vfp_dp_ldst},
- {"fldmiad", 0xec900b00, 7, FPU_VFP_EXT_V1, do_vfp_dp_ldstmia},
- {"fldmfdd", 0xec900b00, 7, FPU_VFP_EXT_V1, do_vfp_dp_ldstmia},
- {"fldmdbd", 0xed300b00, 7, FPU_VFP_EXT_V1, do_vfp_dp_ldstmdb},
- {"fldmead", 0xed300b00, 7, FPU_VFP_EXT_V1, do_vfp_dp_ldstmdb},
- {"fstmiad", 0xec800b00, 7, FPU_VFP_EXT_V1, do_vfp_dp_ldstmia},
- {"fstmead", 0xec800b00, 7, FPU_VFP_EXT_V1, do_vfp_dp_ldstmia},
- {"fstmdbd", 0xed200b00, 7, FPU_VFP_EXT_V1, do_vfp_dp_ldstmdb},
- {"fstmfdd", 0xed200b00, 7, FPU_VFP_EXT_V1, do_vfp_dp_ldstmdb},
-
- /* Monadic operations. */
- {"fabsd", 0xeeb00bc0, 5, FPU_VFP_EXT_V1, do_vfp_dp_monadic},
- {"fnegd", 0xeeb10b40, 5, FPU_VFP_EXT_V1, do_vfp_dp_monadic},
- {"fsqrtd", 0xeeb10bc0, 6, FPU_VFP_EXT_V1, do_vfp_dp_monadic},
-
- /* Dyadic operations. */
- {"faddd", 0xee300b00, 5, FPU_VFP_EXT_V1, do_vfp_dp_dyadic},
- {"fsubd", 0xee300b40, 5, FPU_VFP_EXT_V1, do_vfp_dp_dyadic},
- {"fmuld", 0xee200b00, 5, FPU_VFP_EXT_V1, do_vfp_dp_dyadic},
- {"fdivd", 0xee800b00, 5, FPU_VFP_EXT_V1, do_vfp_dp_dyadic},
- {"fmacd", 0xee000b00, 5, FPU_VFP_EXT_V1, do_vfp_dp_dyadic},
- {"fmscd", 0xee100b00, 5, FPU_VFP_EXT_V1, do_vfp_dp_dyadic},
- {"fnmuld", 0xee200b40, 6, FPU_VFP_EXT_V1, do_vfp_dp_dyadic},
- {"fnmacd", 0xee000b40, 6, FPU_VFP_EXT_V1, do_vfp_dp_dyadic},
- {"fnmscd", 0xee100b40, 6, FPU_VFP_EXT_V1, do_vfp_dp_dyadic},
-
- /* Comparisons. */
- {"fcmpd", 0xeeb40b40, 5, FPU_VFP_EXT_V1, do_vfp_dp_monadic},
- {"fcmpzd", 0xeeb50b40, 6, FPU_VFP_EXT_V1, do_vfp_dp_compare_z},
- {"fcmped", 0xeeb40bc0, 6, FPU_VFP_EXT_V1, do_vfp_dp_monadic},
- {"fcmpezd", 0xeeb50bc0, 7, FPU_VFP_EXT_V1, do_vfp_dp_compare_z},
-
- /* VFP V2. */
- {"fmsrr", 0xec400a10, 5, FPU_VFP_EXT_V2, do_vfp_sp2_from_reg2},
- {"fmrrs", 0xec500a10, 5, FPU_VFP_EXT_V2, do_vfp_reg2_from_sp2},
- {"fmdrr", 0xec400b10, 5, FPU_VFP_EXT_V2, do_vfp_dp_from_reg2},
- {"fmrrd", 0xec500b10, 5, FPU_VFP_EXT_V2, do_vfp_reg2_from_dp},
-
- /* Intel XScale extensions to ARM V5 ISA. (All use CP0). */
- {"mia", 0xee200010, 3, ARM_CEXT_XSCALE, do_xsc_mia},
- {"miaph", 0xee280010, 5, ARM_CEXT_XSCALE, do_xsc_mia},
- {"miabb", 0xee2c0010, 5, ARM_CEXT_XSCALE, do_xsc_mia},
- {"miabt", 0xee2d0010, 5, ARM_CEXT_XSCALE, do_xsc_mia},
- {"miatb", 0xee2e0010, 5, ARM_CEXT_XSCALE, do_xsc_mia},
- {"miatt", 0xee2f0010, 5, ARM_CEXT_XSCALE, do_xsc_mia},
- {"mar", 0xec400000, 3, ARM_CEXT_XSCALE, do_xsc_mar},
- {"mra", 0xec500000, 3, ARM_CEXT_XSCALE, do_xsc_mra},
-
- /* Intel Wireless MMX technology instructions. */
- {"tandcb", 0xee130130, 6, ARM_CEXT_IWMMXT, do_iwmmxt_tandc},
- {"tandch", 0xee530130, 6, ARM_CEXT_IWMMXT, do_iwmmxt_tandc},
- {"tandcw", 0xee930130, 6, ARM_CEXT_IWMMXT, do_iwmmxt_tandc},
- {"tbcstb", 0xee400010, 6, ARM_CEXT_IWMMXT, do_iwmmxt_tbcst},
- {"tbcsth", 0xee400050, 6, ARM_CEXT_IWMMXT, do_iwmmxt_tbcst},
- {"tbcstw", 0xee400090, 6, ARM_CEXT_IWMMXT, do_iwmmxt_tbcst},
- {"textrcb", 0xee130170, 7, ARM_CEXT_IWMMXT, do_iwmmxt_textrc},
- {"textrch", 0xee530170, 7, ARM_CEXT_IWMMXT, do_iwmmxt_textrc},
- {"textrcw", 0xee930170, 7, ARM_CEXT_IWMMXT, do_iwmmxt_textrc},
- {"textrmub", 0xee100070, 8, ARM_CEXT_IWMMXT, do_iwmmxt_textrm},
- {"textrmuh", 0xee500070, 8, ARM_CEXT_IWMMXT, do_iwmmxt_textrm},
- {"textrmuw", 0xee900070, 8, ARM_CEXT_IWMMXT, do_iwmmxt_textrm},
- {"textrmsb", 0xee100078, 8, ARM_CEXT_IWMMXT, do_iwmmxt_textrm},
- {"textrmsh", 0xee500078, 8, ARM_CEXT_IWMMXT, do_iwmmxt_textrm},
- {"textrmsw", 0xee900078, 8, ARM_CEXT_IWMMXT, do_iwmmxt_textrm},
- {"tinsrb", 0xee600010, 6, ARM_CEXT_IWMMXT, do_iwmmxt_tinsr},
- {"tinsrh", 0xee600050, 6, ARM_CEXT_IWMMXT, do_iwmmxt_tinsr},
- {"tinsrw", 0xee600090, 6, ARM_CEXT_IWMMXT, do_iwmmxt_tinsr},
- {"tmcr", 0xee000110, 4, ARM_CEXT_IWMMXT, do_iwmmxt_tmcr},
- {"tmcrr", 0xec400000, 5, ARM_CEXT_IWMMXT, do_iwmmxt_tmcrr},
- {"tmia", 0xee200010, 4, ARM_CEXT_IWMMXT, do_iwmmxt_tmia},
- {"tmiaph", 0xee280010, 6, ARM_CEXT_IWMMXT, do_iwmmxt_tmia},
- {"tmiabb", 0xee2c0010, 6, ARM_CEXT_IWMMXT, do_iwmmxt_tmia},
- {"tmiabt", 0xee2d0010, 6, ARM_CEXT_IWMMXT, do_iwmmxt_tmia},
- {"tmiatb", 0xee2e0010, 6, ARM_CEXT_IWMMXT, do_iwmmxt_tmia},
- {"tmiatt", 0xee2f0010, 6, ARM_CEXT_IWMMXT, do_iwmmxt_tmia},
- {"tmovmskb", 0xee100030, 8, ARM_CEXT_IWMMXT, do_iwmmxt_tmovmsk},
- {"tmovmskh", 0xee500030, 8, ARM_CEXT_IWMMXT, do_iwmmxt_tmovmsk},
- {"tmovmskw", 0xee900030, 8, ARM_CEXT_IWMMXT, do_iwmmxt_tmovmsk},
- {"tmrc", 0xee100110, 4, ARM_CEXT_IWMMXT, do_iwmmxt_tmrc},
- {"tmrrc", 0xec500000, 5, ARM_CEXT_IWMMXT, do_iwmmxt_tmrrc},
- {"torcb", 0xee130150, 5, ARM_CEXT_IWMMXT, do_iwmmxt_torc},
- {"torch", 0xee530150, 5, ARM_CEXT_IWMMXT, do_iwmmxt_torc},
- {"torcw", 0xee930150, 5, ARM_CEXT_IWMMXT, do_iwmmxt_torc},
- {"waccb", 0xee0001c0, 5, ARM_CEXT_IWMMXT, do_iwmmxt_wrwr},
- {"wacch", 0xee4001c0, 5, ARM_CEXT_IWMMXT, do_iwmmxt_wrwr},
- {"waccw", 0xee8001c0, 5, ARM_CEXT_IWMMXT, do_iwmmxt_wrwr},
- {"waddbss", 0xee300180, 7, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"waddb", 0xee000180, 5, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"waddbus", 0xee100180, 7, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"waddhss", 0xee700180, 7, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"waddh", 0xee400180, 5, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"waddhus", 0xee500180, 7, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"waddwss", 0xeeb00180, 7, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"waddw", 0xee800180, 5, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"waddwus", 0xee900180, 7, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"waligni", 0xee000020, 7, ARM_CEXT_IWMMXT, do_iwmmxt_waligni},
- {"walignr0", 0xee800020, 8, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"walignr1", 0xee900020, 8, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"walignr2", 0xeea00020, 8, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"walignr3", 0xeeb00020, 8, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wand", 0xee200000, 4, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wandn", 0xee300000, 5, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wavg2b", 0xee800000, 6, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wavg2br", 0xee900000, 7, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wavg2h", 0xeec00000, 6, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wavg2hr", 0xeed00000, 7, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wcmpeqb", 0xee000060, 7, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wcmpeqh", 0xee400060, 7, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wcmpeqw", 0xee800060, 7, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wcmpgtub", 0xee100060, 8, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wcmpgtuh", 0xee500060, 8, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wcmpgtuw", 0xee900060, 8, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wcmpgtsb", 0xee300060, 8, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wcmpgtsh", 0xee700060, 8, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wcmpgtsw", 0xeeb00060, 8, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wldrb", 0xec100000, 5, ARM_CEXT_IWMMXT, do_iwmmxt_byte_addr},
- {"wldrh", 0xec100100, 5, ARM_CEXT_IWMMXT, do_iwmmxt_byte_addr},
- {"wldrw", 0xec100200, 5, ARM_CEXT_IWMMXT, do_iwmmxt_word_addr},
- {"wldrd", 0xec100300, 5, ARM_CEXT_IWMMXT, do_iwmmxt_word_addr},
- {"wmacs", 0xee600100, 5, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wmacsz", 0xee700100, 6, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wmacu", 0xee400100, 5, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wmacuz", 0xee500100, 6, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wmadds", 0xeea00100, 6, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wmaddu", 0xee800100, 6, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wmaxsb", 0xee200160, 6, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wmaxsh", 0xee600160, 6, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wmaxsw", 0xeea00160, 6, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wmaxub", 0xee000160, 6, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wmaxuh", 0xee400160, 6, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wmaxuw", 0xee800160, 6, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wminsb", 0xee300160, 6, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wminsh", 0xee700160, 6, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wminsw", 0xeeb00160, 6, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wminub", 0xee100160, 6, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wminuh", 0xee500160, 6, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wminuw", 0xee900160, 6, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wmov", 0xee000000, 4, ARM_CEXT_IWMMXT, do_iwmmxt_wmov},
- {"wmulsm", 0xee300100, 6, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wmulsl", 0xee200100, 6, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wmulum", 0xee100100, 6, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wmulul", 0xee000100, 6, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wor", 0xee000000, 3, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wpackhss", 0xee700080, 8, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wpackhus", 0xee500080, 8, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wpackwss", 0xeeb00080, 8, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wpackwus", 0xee900080, 8, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wpackdss", 0xeef00080, 8, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wpackdus", 0xeed00080, 8, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wrorh", 0xee700040, 5, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wrorhg", 0xee700148, 6, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwcg},
- {"wrorw", 0xeeb00040, 5, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wrorwg", 0xeeb00148, 6, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwcg},
- {"wrord", 0xeef00040, 5, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wrordg", 0xeef00148, 6, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwcg},
- {"wsadb", 0xee000120, 5, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wsadbz", 0xee100120, 6, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wsadh", 0xee400120, 5, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wsadhz", 0xee500120, 6, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wshufh", 0xee0001e0, 6, ARM_CEXT_IWMMXT, do_iwmmxt_wshufh},
- {"wsllh", 0xee500040, 5, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wsllhg", 0xee500148, 6, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwcg},
- {"wsllw", 0xee900040, 5, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wsllwg", 0xee900148, 6, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwcg},
- {"wslld", 0xeed00040, 5, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wslldg", 0xeed00148, 6, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwcg},
- {"wsrah", 0xee400040, 5, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wsrahg", 0xee400148, 6, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwcg},
- {"wsraw", 0xee800040, 5, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wsrawg", 0xee800148, 6, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwcg},
- {"wsrad", 0xeec00040, 5, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wsradg", 0xeec00148, 6, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwcg},
- {"wsrlh", 0xee600040, 5, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wsrlhg", 0xee600148, 6, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwcg},
- {"wsrlw", 0xeea00040, 5, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wsrlwg", 0xeea00148, 6, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwcg},
- {"wsrld", 0xeee00040, 5, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wsrldg", 0xeee00148, 6, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwcg},
- {"wstrb", 0xec000000, 5, ARM_CEXT_IWMMXT, do_iwmmxt_byte_addr},
- {"wstrh", 0xec000100, 5, ARM_CEXT_IWMMXT, do_iwmmxt_byte_addr},
- {"wstrw", 0xec000200, 5, ARM_CEXT_IWMMXT, do_iwmmxt_word_addr},
- {"wstrd", 0xec000300, 5, ARM_CEXT_IWMMXT, do_iwmmxt_word_addr},
- {"wsubbss", 0xee3001a0, 7, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wsubb", 0xee0001a0, 5, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wsubbus", 0xee1001a0, 7, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wsubhss", 0xee7001a0, 7, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wsubh", 0xee4001a0, 5, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wsubhus", 0xee5001a0, 7, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wsubwss", 0xeeb001a0, 7, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wsubw", 0xee8001a0, 5, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wsubwus", 0xee9001a0, 7, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wunpckehub", 0xee0000c0, 10, ARM_CEXT_IWMMXT, do_iwmmxt_wrwr},
- {"wunpckehuh", 0xee4000c0, 10, ARM_CEXT_IWMMXT, do_iwmmxt_wrwr},
- {"wunpckehuw", 0xee8000c0, 10, ARM_CEXT_IWMMXT, do_iwmmxt_wrwr},
- {"wunpckehsb", 0xee2000c0, 10, ARM_CEXT_IWMMXT, do_iwmmxt_wrwr},
- {"wunpckehsh", 0xee6000c0, 10, ARM_CEXT_IWMMXT, do_iwmmxt_wrwr},
- {"wunpckehsw", 0xeea000c0, 10, ARM_CEXT_IWMMXT, do_iwmmxt_wrwr},
- {"wunpckihb", 0xee1000c0, 9, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wunpckihh", 0xee5000c0, 9, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wunpckihw", 0xee9000c0, 9, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wunpckelub", 0xee0000e0, 10, ARM_CEXT_IWMMXT, do_iwmmxt_wrwr},
- {"wunpckeluh", 0xee4000e0, 10, ARM_CEXT_IWMMXT, do_iwmmxt_wrwr},
- {"wunpckeluw", 0xee8000e0, 10, ARM_CEXT_IWMMXT, do_iwmmxt_wrwr},
- {"wunpckelsb", 0xee2000e0, 10, ARM_CEXT_IWMMXT, do_iwmmxt_wrwr},
- {"wunpckelsh", 0xee6000e0, 10, ARM_CEXT_IWMMXT, do_iwmmxt_wrwr},
- {"wunpckelsw", 0xeea000e0, 10, ARM_CEXT_IWMMXT, do_iwmmxt_wrwr},
- {"wunpckilb", 0xee1000e0, 9, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wunpckilh", 0xee5000e0, 9, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wunpckilw", 0xee9000e0, 9, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wxor", 0xee100000, 4, ARM_CEXT_IWMMXT, do_iwmmxt_wrwrwr},
- {"wzero", 0xee300000, 5, ARM_CEXT_IWMMXT, do_iwmmxt_wzero},
-
- /* Cirrus Maverick instructions. */
- {"cfldrs", 0xec100400, 6, ARM_CEXT_MAVERICK, do_mav_ldst_1},
- {"cfldrd", 0xec500400, 6, ARM_CEXT_MAVERICK, do_mav_ldst_2},
- {"cfldr32", 0xec100500, 7, ARM_CEXT_MAVERICK, do_mav_ldst_3},
- {"cfldr64", 0xec500500, 7, ARM_CEXT_MAVERICK, do_mav_ldst_4},
- {"cfstrs", 0xec000400, 6, ARM_CEXT_MAVERICK, do_mav_ldst_1},
- {"cfstrd", 0xec400400, 6, ARM_CEXT_MAVERICK, do_mav_ldst_2},
- {"cfstr32", 0xec000500, 7, ARM_CEXT_MAVERICK, do_mav_ldst_3},
- {"cfstr64", 0xec400500, 7, ARM_CEXT_MAVERICK, do_mav_ldst_4},
- {"cfmvsr", 0xee000450, 6, ARM_CEXT_MAVERICK, do_mav_binops_2a},
- {"cfmvrs", 0xee100450, 6, ARM_CEXT_MAVERICK, do_mav_binops_1a},
- {"cfmvdlr", 0xee000410, 7, ARM_CEXT_MAVERICK, do_mav_binops_2b},
- {"cfmvrdl", 0xee100410, 7, ARM_CEXT_MAVERICK, do_mav_binops_1b},
- {"cfmvdhr", 0xee000430, 7, ARM_CEXT_MAVERICK, do_mav_binops_2b},
- {"cfmvrdh", 0xee100430, 7, ARM_CEXT_MAVERICK, do_mav_binops_1b},
- {"cfmv64lr", 0xee000510, 8, ARM_CEXT_MAVERICK, do_mav_binops_2c},
- {"cfmvr64l", 0xee100510, 8, ARM_CEXT_MAVERICK, do_mav_binops_1c},
- {"cfmv64hr", 0xee000530, 8, ARM_CEXT_MAVERICK, do_mav_binops_2c},
- {"cfmvr64h", 0xee100530, 8, ARM_CEXT_MAVERICK, do_mav_binops_1c},
- {"cfmval32", 0xee200440, 8, ARM_CEXT_MAVERICK, do_mav_binops_3a},
- {"cfmv32al", 0xee100440, 8, ARM_CEXT_MAVERICK, do_mav_binops_3b},
- {"cfmvam32", 0xee200460, 8, ARM_CEXT_MAVERICK, do_mav_binops_3a},
- {"cfmv32am", 0xee100460, 8, ARM_CEXT_MAVERICK, do_mav_binops_3b},
- {"cfmvah32", 0xee200480, 8, ARM_CEXT_MAVERICK, do_mav_binops_3a},
- {"cfmv32ah", 0xee100480, 8, ARM_CEXT_MAVERICK, do_mav_binops_3b},
- {"cfmva32", 0xee2004a0, 7, ARM_CEXT_MAVERICK, do_mav_binops_3a},
- {"cfmv32a", 0xee1004a0, 7, ARM_CEXT_MAVERICK, do_mav_binops_3b},
- {"cfmva64", 0xee2004c0, 7, ARM_CEXT_MAVERICK, do_mav_binops_3c},
- {"cfmv64a", 0xee1004c0, 7, ARM_CEXT_MAVERICK, do_mav_binops_3d},
- {"cfmvsc32", 0xee2004e0, 8, ARM_CEXT_MAVERICK, do_mav_dspsc_1},
- {"cfmv32sc", 0xee1004e0, 8, ARM_CEXT_MAVERICK, do_mav_dspsc_2},
- {"cfcpys", 0xee000400, 6, ARM_CEXT_MAVERICK, do_mav_binops_1d},
- {"cfcpyd", 0xee000420, 6, ARM_CEXT_MAVERICK, do_mav_binops_1e},
- {"cfcvtsd", 0xee000460, 7, ARM_CEXT_MAVERICK, do_mav_binops_1f},
- {"cfcvtds", 0xee000440, 7, ARM_CEXT_MAVERICK, do_mav_binops_1g},
- {"cfcvt32s", 0xee000480, 8, ARM_CEXT_MAVERICK, do_mav_binops_1h},
- {"cfcvt32d", 0xee0004a0, 8, ARM_CEXT_MAVERICK, do_mav_binops_1i},
- {"cfcvt64s", 0xee0004c0, 8, ARM_CEXT_MAVERICK, do_mav_binops_1j},
- {"cfcvt64d", 0xee0004e0, 8, ARM_CEXT_MAVERICK, do_mav_binops_1k},
- {"cfcvts32", 0xee100580, 8, ARM_CEXT_MAVERICK, do_mav_binops_1l},
- {"cfcvtd32", 0xee1005a0, 8, ARM_CEXT_MAVERICK, do_mav_binops_1m},
- {"cftruncs32", 0xee1005c0, 10, ARM_CEXT_MAVERICK, do_mav_binops_1l},
- {"cftruncd32", 0xee1005e0, 10, ARM_CEXT_MAVERICK, do_mav_binops_1m},
- {"cfrshl32", 0xee000550, 8, ARM_CEXT_MAVERICK, do_mav_triple_4a},
- {"cfrshl64", 0xee000570, 8, ARM_CEXT_MAVERICK, do_mav_triple_4b},
- {"cfsh32", 0xee000500, 6, ARM_CEXT_MAVERICK, do_mav_shift_1},
- {"cfsh64", 0xee200500, 6, ARM_CEXT_MAVERICK, do_mav_shift_2},
- {"cfcmps", 0xee100490, 6, ARM_CEXT_MAVERICK, do_mav_triple_5a},
- {"cfcmpd", 0xee1004b0, 6, ARM_CEXT_MAVERICK, do_mav_triple_5b},
- {"cfcmp32", 0xee100590, 7, ARM_CEXT_MAVERICK, do_mav_triple_5c},
- {"cfcmp64", 0xee1005b0, 7, ARM_CEXT_MAVERICK, do_mav_triple_5d},
- {"cfabss", 0xee300400, 6, ARM_CEXT_MAVERICK, do_mav_binops_1d},
- {"cfabsd", 0xee300420, 6, ARM_CEXT_MAVERICK, do_mav_binops_1e},
- {"cfnegs", 0xee300440, 6, ARM_CEXT_MAVERICK, do_mav_binops_1d},
- {"cfnegd", 0xee300460, 6, ARM_CEXT_MAVERICK, do_mav_binops_1e},
- {"cfadds", 0xee300480, 6, ARM_CEXT_MAVERICK, do_mav_triple_5e},
- {"cfaddd", 0xee3004a0, 6, ARM_CEXT_MAVERICK, do_mav_triple_5f},
- {"cfsubs", 0xee3004c0, 6, ARM_CEXT_MAVERICK, do_mav_triple_5e},
- {"cfsubd", 0xee3004e0, 6, ARM_CEXT_MAVERICK, do_mav_triple_5f},
- {"cfmuls", 0xee100400, 6, ARM_CEXT_MAVERICK, do_mav_triple_5e},
- {"cfmuld", 0xee100420, 6, ARM_CEXT_MAVERICK, do_mav_triple_5f},
- {"cfabs32", 0xee300500, 7, ARM_CEXT_MAVERICK, do_mav_binops_1n},
- {"cfabs64", 0xee300520, 7, ARM_CEXT_MAVERICK, do_mav_binops_1o},
- {"cfneg32", 0xee300540, 7, ARM_CEXT_MAVERICK, do_mav_binops_1n},
- {"cfneg64", 0xee300560, 7, ARM_CEXT_MAVERICK, do_mav_binops_1o},
- {"cfadd32", 0xee300580, 7, ARM_CEXT_MAVERICK, do_mav_triple_5g},
- {"cfadd64", 0xee3005a0, 7, ARM_CEXT_MAVERICK, do_mav_triple_5h},
- {"cfsub32", 0xee3005c0, 7, ARM_CEXT_MAVERICK, do_mav_triple_5g},
- {"cfsub64", 0xee3005e0, 7, ARM_CEXT_MAVERICK, do_mav_triple_5h},
- {"cfmul32", 0xee100500, 7, ARM_CEXT_MAVERICK, do_mav_triple_5g},
- {"cfmul64", 0xee100520, 7, ARM_CEXT_MAVERICK, do_mav_triple_5h},
- {"cfmac32", 0xee100540, 7, ARM_CEXT_MAVERICK, do_mav_triple_5g},
- {"cfmsc32", 0xee100560, 7, ARM_CEXT_MAVERICK, do_mav_triple_5g},
- {"cfmadd32", 0xee000600, 8, ARM_CEXT_MAVERICK, do_mav_quad_6a},
- {"cfmsub32", 0xee100600, 8, ARM_CEXT_MAVERICK, do_mav_quad_6a},
- {"cfmadda32", 0xee200600, 9, ARM_CEXT_MAVERICK, do_mav_quad_6b},
- {"cfmsuba32", 0xee300600, 9, ARM_CEXT_MAVERICK, do_mav_quad_6b},
-};
-
-/* Iterate over the base tables to create the instruction patterns. */
-
-static void
-build_arm_ops_hsh (void)
-{
- unsigned int i;
- unsigned int j;
- static struct obstack insn_obstack;
-
- obstack_begin (&insn_obstack, 4000);
-
- for (i = 0; i < sizeof (insns) / sizeof (struct asm_opcode); i++)
- {
- const struct asm_opcode *insn = insns + i;
-
- if (insn->cond_offset != 0)
- {
- /* Insn supports conditional execution. Build the varaints
- and insert them in the hash table. */
- for (j = 0; j < sizeof (conds) / sizeof (struct asm_cond); j++)
- {
- unsigned len = strlen (insn->template);
- struct asm_opcode *new;
- char *template;
-
- new = obstack_alloc (&insn_obstack, sizeof (struct asm_opcode));
- /* All condition codes are two characters. */
- template = obstack_alloc (&insn_obstack, len + 3);
-
- strncpy (template, insn->template, insn->cond_offset);
- strcpy (template + insn->cond_offset, conds[j].template);
- if (len > insn->cond_offset)
- strcpy (template + insn->cond_offset + 2,
- insn->template + insn->cond_offset);
- new->template = template;
- new->cond_offset = 0;
- new->variant = insn->variant;
- new->parms = insn->parms;
- new->value = (insn->value & ~COND_MASK) | conds[j].value;
-
- hash_insert (arm_ops_hsh, new->template, (PTR) new);
- }
- }
- /* Finally, insert the unconditional insn in the table directly;
- no need to build a copy. */
- hash_insert (arm_ops_hsh, insn->template, (PTR) insn);
- }
-}
-
-\f
-static const struct thumb_opcode tinsns[] =
-{
- /* Thumb v1 (ARMv4T). */
- {"adc", 0x4140, 2, ARM_EXT_V4T, do_t_arit},
- {"add", 0x0000, 2, ARM_EXT_V4T, do_t_add},
- {"and", 0x4000, 2, ARM_EXT_V4T, do_t_arit},
- {"asr", 0x0000, 2, ARM_EXT_V4T, do_t_asr},
- {"b", T_OPCODE_BRANCH, 2, ARM_EXT_V4T, do_t_branch12},
- {"beq", 0xd0fe, 2, ARM_EXT_V4T, do_t_branch9},
- {"bne", 0xd1fe, 2, ARM_EXT_V4T, do_t_branch9},
- {"bcs", 0xd2fe, 2, ARM_EXT_V4T, do_t_branch9},
- {"bhs", 0xd2fe, 2, ARM_EXT_V4T, do_t_branch9},
- {"bcc", 0xd3fe, 2, ARM_EXT_V4T, do_t_branch9},
- {"bul", 0xd3fe, 2, ARM_EXT_V4T, do_t_branch9},
- {"blo", 0xd3fe, 2, ARM_EXT_V4T, do_t_branch9},
- {"bmi", 0xd4fe, 2, ARM_EXT_V4T, do_t_branch9},
- {"bpl", 0xd5fe, 2, ARM_EXT_V4T, do_t_branch9},
- {"bvs", 0xd6fe, 2, ARM_EXT_V4T, do_t_branch9},
- {"bvc", 0xd7fe, 2, ARM_EXT_V4T, do_t_branch9},
- {"bhi", 0xd8fe, 2, ARM_EXT_V4T, do_t_branch9},
- {"bls", 0xd9fe, 2, ARM_EXT_V4T, do_t_branch9},
- {"bge", 0xdafe, 2, ARM_EXT_V4T, do_t_branch9},
- {"blt", 0xdbfe, 2, ARM_EXT_V4T, do_t_branch9},
- {"bgt", 0xdcfe, 2, ARM_EXT_V4T, do_t_branch9},
- {"ble", 0xddfe, 2, ARM_EXT_V4T, do_t_branch9},
- {"bal", 0xdefe, 2, ARM_EXT_V4T, do_t_branch9},
- {"bic", 0x4380, 2, ARM_EXT_V4T, do_t_arit},
- {"bl", 0xf7fffffe, 4, ARM_EXT_V4T, do_t_branch23},
- {"bx", 0x4700, 2, ARM_EXT_V4T, do_t_bx},
- {"cmn", T_OPCODE_CMN, 2, ARM_EXT_V4T, do_t_arit},
- {"cmp", 0x0000, 2, ARM_EXT_V4T, do_t_compare},
- {"eor", 0x4040, 2, ARM_EXT_V4T, do_t_arit},
- {"ldmia", 0xc800, 2, ARM_EXT_V4T, do_t_ldmstm},
- {"ldr", 0x0000, 2, ARM_EXT_V4T, do_t_ldr},
- {"ldrb", 0x0000, 2, ARM_EXT_V4T, do_t_ldrb},
- {"ldrh", 0x0000, 2, ARM_EXT_V4T, do_t_ldrh},
- {"ldrsb", 0x5600, 2, ARM_EXT_V4T, do_t_lds},
- {"ldrsh", 0x5e00, 2, ARM_EXT_V4T, do_t_lds},
- {"ldsb", 0x5600, 2, ARM_EXT_V4T, do_t_lds},
- {"ldsh", 0x5e00, 2, ARM_EXT_V4T, do_t_lds},
- {"lsl", 0x0000, 2, ARM_EXT_V4T, do_t_lsl},
- {"lsr", 0x0000, 2, ARM_EXT_V4T, do_t_lsr},
- {"mov", 0x0000, 2, ARM_EXT_V4T, do_t_mov},
- {"mul", T_OPCODE_MUL, 2, ARM_EXT_V4T, do_t_arit},
- {"mvn", T_OPCODE_MVN, 2, ARM_EXT_V4T, do_t_arit},
- {"neg", T_OPCODE_NEG, 2, ARM_EXT_V4T, do_t_arit},
- {"orr", 0x4300, 2, ARM_EXT_V4T, do_t_arit},
- {"pop", 0xbc00, 2, ARM_EXT_V4T, do_t_push_pop},
- {"push", 0xb400, 2, ARM_EXT_V4T, do_t_push_pop},
- {"ror", 0x41c0, 2, ARM_EXT_V4T, do_t_arit},
- {"sbc", 0x4180, 2, ARM_EXT_V4T, do_t_arit},
- {"stmia", 0xc000, 2, ARM_EXT_V4T, do_t_ldmstm},
- {"str", 0x0000, 2, ARM_EXT_V4T, do_t_str},
- {"strb", 0x0000, 2, ARM_EXT_V4T, do_t_strb},
- {"strh", 0x0000, 2, ARM_EXT_V4T, do_t_strh},
- {"swi", 0xdf00, 2, ARM_EXT_V4T, do_t_swi},
- {"sub", 0x0000, 2, ARM_EXT_V4T, do_t_sub},
- {"tst", T_OPCODE_TST, 2, ARM_EXT_V4T, do_t_arit},
- /* Pseudo ops: */
- {"adr", 0x0000, 2, ARM_EXT_V4T, do_t_adr},
- {"nop", 0x46C0, 2, ARM_EXT_V4T, do_t_nop}, /* mov r8,r8 */
- /* Thumb v2 (ARMv5T). */
- {"blx", 0, 0, ARM_EXT_V5T, do_t_blx},
- {"bkpt", 0xbe00, 2, ARM_EXT_V5T, do_t_bkpt},
-
- /* ARM V6. */
- {"cpsie", 0xb660, 2, ARM_EXT_V6, do_t_cps},
- {"cpsid", 0xb670, 2, ARM_EXT_V6, do_t_cps},
- {"cpy", 0x4600, 2, ARM_EXT_V6, do_t_cpy},
- {"rev", 0xba00, 2, ARM_EXT_V6, do_t_arit},
- {"rev16", 0xba40, 2, ARM_EXT_V6, do_t_arit},
- {"revsh", 0xbac0, 2, ARM_EXT_V6, do_t_arit},
- {"setend", 0xb650, 2, ARM_EXT_V6, do_t_setend},
- {"sxth", 0xb200, 2, ARM_EXT_V6, do_t_arit},
- {"sxtb", 0xb240, 2, ARM_EXT_V6, do_t_arit},
- {"uxth", 0xb280, 2, ARM_EXT_V6, do_t_arit},
- {"uxtb", 0xb2c0, 2, ARM_EXT_V6, do_t_arit},
-
- /* ARM V6K. */
- {"sev", 0xbf40, 2, ARM_EXT_V6K, do_empty},
- {"wfe", 0xbf20, 2, ARM_EXT_V6K, do_empty},
- {"wfi", 0xbf30, 2, ARM_EXT_V6K, do_empty},
- {"yield", 0xbf10, 2, ARM_EXT_V6K, do_empty},
-};
-
-void
-md_begin (void)
-{
- unsigned mach;
- unsigned int i;
-
- if ( (arm_ops_hsh = hash_new ()) == NULL
- || (arm_tops_hsh = hash_new ()) == NULL
- || (arm_cond_hsh = hash_new ()) == NULL
- || (arm_shift_hsh = hash_new ()) == NULL
- || (arm_psr_hsh = hash_new ()) == NULL)
- as_fatal (_("virtual memory exhausted"));
-
- build_arm_ops_hsh ();
- for (i = 0; i < sizeof (tinsns) / sizeof (struct thumb_opcode); i++)
- hash_insert (arm_tops_hsh, tinsns[i].template, (PTR) (tinsns + i));
- for (i = 0; i < sizeof (conds) / sizeof (struct asm_cond); i++)
- hash_insert (arm_cond_hsh, conds[i].template, (PTR) (conds + i));
- for (i = 0; i < sizeof (shift_names) / sizeof (struct asm_shift_name); i++)
- hash_insert (arm_shift_hsh, shift_names[i].name, (PTR) (shift_names + i));
- for (i = 0; i < sizeof (psrs) / sizeof (struct asm_psr); i++)
- hash_insert (arm_psr_hsh, psrs[i].template, (PTR) (psrs + i));
-
- for (i = (int) REG_TYPE_FIRST; i < (int) REG_TYPE_MAX; i++)
- build_reg_hsh (all_reg_maps + i);
-
- set_constant_flonums ();
-
- /* Set the cpu variant based on the command-line options. We prefer
- -mcpu= over -march= if both are set (as for GCC); and we prefer
- -mfpu= over any other way of setting the floating point unit.
- Use of legacy options with new options are faulted. */
- if (legacy_cpu != -1)
- {
- if (mcpu_cpu_opt != -1 || march_cpu_opt != -1)
- as_bad (_("use of old and new-style options to set CPU type"));
-
- mcpu_cpu_opt = legacy_cpu;
- }
- else if (mcpu_cpu_opt == -1)
- mcpu_cpu_opt = march_cpu_opt;
-
- if (legacy_fpu != -1)
- {
- if (mfpu_opt != -1)
- as_bad (_("use of old and new-style options to set FPU type"));
+ if (legacy_fpu != -1)
+ {
+ if (mfpu_opt != -1)
+ as_bad (_("use of old and new-style options to set FPU type"));
mfpu_opt = legacy_fpu;
}
else if (mfpu_opt == -1)
{
-#if !(defined (TE_LINUX) || defined (TE_NetBSD) || defined (TE_VXWORKS))
+#if !(defined (TE_LINUX) || defined (TE_NetBSD) || defined (TE_VXWORKS))
/* Some environments specify a default FPU. If they don't, infer it
from the processor. */
if (mcpu_fpu_opt != -1)
if (uses_apcs_26) flags |= F_APCS26;
if (support_interwork) flags |= F_INTERWORK;
if (uses_apcs_float) flags |= F_APCS_FLOAT;
- if (pic_code) flags |= F_PIC;
+ if (pic_code) flags |= F_PIC;
if ((cpu_variant & FPU_ANY) == FPU_NONE
|| (cpu_variant & FPU_ANY) == FPU_ARCH_VFP) /* VFP layout only. */
flags |= F_SOFT_FLOAT;
break;
}
- /* Using VFP conventions (even if soft-float). */
+ /* Using VFP conventions (even if soft-float). */
if (cpu_variant & FPU_VFP_EXT_NONE)
flags |= F_VFP_FLOAT;
break;
case EF_ARM_EABI_VER4:
- /* No additional flags to set. */
+ /* No additional flags to set. */
break;
default:
/* We have run out flags in the COFF header to encode the
status of ATPCS support, so instead we create a dummy,
- empty, debug section called .arm.atpcs. */
+ empty, debug section called .arm.atpcs. */
if (atpcs)
{
asection * sec;
mach = bfd_mach_arm_2;
break;
- case ARM_3: /* Also ARM_250. */
+ case ARM_3: /* Also ARM_250. */
mach = bfd_mach_arm_2a;
break;
- case ARM_6: /* Also ARM_7. */
+ case ARM_6: /* Also ARM_7. */
mach = bfd_mach_arm_3;
break;
bfd_set_arch_mach (stdoutput, TARGET_ARCH, mach);
}
-/* Turn an integer of n bytes (in val) into a stream of bytes appropriate
- for use in the a.out file, and stores them in the array pointed to by buf.
- This knows about the endian-ness of the target machine and does
- THE RIGHT THING, whatever it is. Possible values for n are 1 (byte)
- 2 (short) and 4 (long) Floating numbers are put out as a series of
- LITTLENUMS (shorts, here at least). */
-
-void
-md_number_to_chars (char * buf, valueT val, int n)
-{
- if (target_big_endian)
- number_to_chars_bigendian (buf, val, n);
- else
- number_to_chars_littleendian (buf, val, n);
-}
-
-static valueT
-md_chars_to_number (char * buf, int n)
-{
- valueT result = 0;
- unsigned char * where = (unsigned char *) buf;
-
- if (target_big_endian)
- {
- while (n--)
- {
- result <<= 8;
- result |= (*where++ & 255);
- }
- }
- else
- {
- while (n--)
- {
- result <<= 8;
- result |= (where[n] & 255);
- }
- }
-
- return result;
-}
-
-/* Turn a string in input_line_pointer into a floating point constant
- of type TYPE, and store the appropriate bytes in *LITP. The number
- of LITTLENUMS emitted is stored in *SIZEP. An error message is
- returned, or NULL on OK.
-
- Note that fp constants aren't represent in the normal way on the ARM.
- In big endian mode, things are as expected. However, in little endian
- mode fp constants are big-endian word-wise, and little-endian byte-wise
- within the words. For example, (double) 1.1 in big endian mode is
- the byte sequence 3f f1 99 99 99 99 99 9a, and in little endian mode is
- the byte sequence 99 99 f1 3f 9a 99 99 99.
-
- ??? The format of 12 byte floats is uncertain according to gcc's arm.h. */
-
-char *
-md_atof (int type, char * litP, int * sizeP)
-{
- int prec;
- LITTLENUM_TYPE words[MAX_LITTLENUMS];
- char *t;
- int i;
-
- switch (type)
- {
- case 'f':
- case 'F':
- case 's':
- case 'S':
- prec = 2;
- break;
+/* Command line processing. */
- case 'd':
- case 'D':
- case 'r':
- case 'R':
- prec = 4;
- break;
+/* md_parse_option
+ Invocation line includes a switch not recognized by the base assembler.
+ See if it's a processor-specific option.
- case 'x':
- case 'X':
- prec = 6;
- break;
+ This routine is somewhat complicated by the need for backwards
+ compatibility (since older releases of gcc can't be changed).
+ The new options try to make the interface as compatible as
+ possible with GCC.
- case 'p':
- case 'P':
- prec = 6;
- break;
+ New options (supported) are:
- default:
- *sizeP = 0;
- return _("bad call to MD_ATOF()");
- }
+ -mcpu=<cpu name> Assemble for selected processor
+ -march=<architecture name> Assemble for selected architecture
+ -mfpu=<fpu architecture> Assemble for selected FPU.
+ -EB/-mbig-endian Big-endian
+ -EL/-mlittle-endian Little-endian
+ -k Generate PIC code
+ -mthumb Start in Thumb mode
+ -mthumb-interwork Code supports ARM/Thumb interworking
- t = atof_ieee (input_line_pointer, type, words);
- if (t)
- input_line_pointer = t;
- *sizeP = prec * 2;
+ For now we will also provide support for:
- if (target_big_endian)
- {
- for (i = 0; i < prec; i++)
- {
- md_number_to_chars (litP, (valueT) words[i], 2);
- litP += 2;
- }
- }
- else
- {
- if (cpu_variant & FPU_ARCH_VFP)
- for (i = prec - 1; i >= 0; i--)
- {
- md_number_to_chars (litP, (valueT) words[i], 2);
- litP += 2;
- }
- else
- /* For a 4 byte float the order of elements in `words' is 1 0.
- For an 8 byte float the order is 1 0 3 2. */
- for (i = 0; i < prec; i += 2)
- {
- md_number_to_chars (litP, (valueT) words[i + 1], 2);
- md_number_to_chars (litP + 2, (valueT) words[i], 2);
- litP += 4;
- }
- }
+ -mapcs-32 32-bit Program counter
+ -mapcs-26 26-bit Program counter
+ -macps-float Floats passed in FP registers
+ -mapcs-reentrant Reentrant code
+ -matpcs
+ (sometime these will probably be replaced with -mapcs=<list of options>
+ and -matpcs=<list of options>)
- return 0;
-}
+ The remaining options are only supported for back-wards compatibility.
+ Cpu variants, the arm part is optional:
+ -m[arm]1 Currently not supported.
+ -m[arm]2, -m[arm]250 Arm 2 and Arm 250 processor
+ -m[arm]3 Arm 3 processor
+ -m[arm]6[xx], Arm 6 processors
+ -m[arm]7[xx][t][[d]m] Arm 7 processors
+ -m[arm]8[10] Arm 8 processors
+ -m[arm]9[20][tdmi] Arm 9 processors
+ -mstrongarm[110[0]] StrongARM processors
+ -mxscale XScale processors
+ -m[arm]v[2345[t[e]]] Arm architectures
+ -mall All (except the ARM1)
+ FP variants:
+ -mfpa10, -mfpa11 FPA10 and 11 co-processor instructions
+ -mfpe-old (No float load/store multiples)
+ -mvfpxd VFP Single precision
+ -mvfp All VFP
+ -mno-fpu Disable all floating point instructions
-/* The knowledge of the PC's pipeline offset is built into the insns
- themselves. */
+ The following CPU names are recognized:
+ arm1, arm2, arm250, arm3, arm6, arm600, arm610, arm620,
+ arm7, arm7m, arm7d, arm7dm, arm7di, arm7dmi, arm70, arm700,
+ arm700i, arm710 arm710t, arm720, arm720t, arm740t, arm710c,
+ arm7100, arm7500, arm7500fe, arm7tdmi, arm8, arm810, arm9,
+ arm920, arm920t, arm940t, arm946, arm966, arm9tdmi, arm9e,
+ arm10t arm10e, arm1020t, arm1020e, arm10200e,
+ strongarm, strongarm110, strongarm1100, strongarm1110, xscale.
-long
-md_pcrel_from (fixS * fixP)
-{
- if (fixP->fx_addsy
- && S_GET_SEGMENT (fixP->fx_addsy) == undefined_section
- && fixP->fx_subsy == NULL)
- return 0;
+ */
- if (fixP->fx_pcrel && (fixP->fx_r_type == BFD_RELOC_ARM_THUMB_ADD))
- {
- /* PC relative addressing on the Thumb is slightly odd
- as the bottom two bits of the PC are forced to zero
- for the calculation. */
- return (fixP->fx_where + fixP->fx_frag->fr_address) & ~3;
- }
+const char * md_shortopts = "m:k";
-#ifdef TE_WINCE
- /* The pattern was adjusted to accommodate CE's off-by-one fixups,
- so we un-adjust here to compensate for the accommodation. */
- return fixP->fx_where + fixP->fx_frag->fr_address + 8;
+#ifdef ARM_BI_ENDIAN
+#define OPTION_EB (OPTION_MD_BASE + 0)
+#define OPTION_EL (OPTION_MD_BASE + 1)
#else
- return fixP->fx_where + fixP->fx_frag->fr_address;
-#endif
-}
-
-/* Round up a section size to the appropriate boundary. */
-
-valueT
-md_section_align (segT segment ATTRIBUTE_UNUSED,
- valueT size)
-{
-#ifdef OBJ_ELF
- return size;
+#if TARGET_BYTES_BIG_ENDIAN
+#define OPTION_EB (OPTION_MD_BASE + 0)
#else
- /* Round all sects to multiple of 4. */
- return (size + 3) & ~3;
+#define OPTION_EL (OPTION_MD_BASE + 1)
+#endif
#endif
-}
-
-/* Under ELF we need to default _GLOBAL_OFFSET_TABLE.
- Otherwise we have no need to default values of symbols. */
-symbolS *
-md_undefined_symbol (char * name ATTRIBUTE_UNUSED)
+struct option md_longopts[] =
{
-#ifdef OBJ_ELF
- if (name[0] == '_' && name[1] == 'G'
- && streq (name, GLOBAL_OFFSET_TABLE_NAME))
- {
- if (!GOT_symbol)
- {
- if (symbol_find (name))
- as_bad ("GOT already in the symbol table");
-
- GOT_symbol = symbol_new (name, undefined_section,
- (valueT) 0, & zero_address_frag);
- }
-
- return GOT_symbol;
- }
+#ifdef OPTION_EB
+ {"EB", no_argument, NULL, OPTION_EB},
+#endif
+#ifdef OPTION_EL
+ {"EL", no_argument, NULL, OPTION_EL},
#endif
+ {NULL, no_argument, NULL, 0}
+};
- return 0;
-}
+size_t md_longopts_size = sizeof (md_longopts);
-void
-md_apply_fix3 (fixS * fixP,
- valueT * valP,
- segT seg)
+struct arm_option_table
{
- offsetT value = * valP;
- offsetT newval;
- unsigned int newimm;
- unsigned long temp;
- int sign;
- char * buf = fixP->fx_where + fixP->fx_frag->fr_literal;
- arm_fix_data * arm_data = (arm_fix_data *) fixP->tc_fix_data;
+ char *option; /* Option name to match. */
+ char *help; /* Help information. */
+ int *var; /* Variable to change. */
+ int value; /* What to change it to. */
+ char *deprecated; /* If non-null, print this message. */
+};
- assert (fixP->fx_r_type <= BFD_RELOC_UNUSED);
+struct arm_option_table arm_opts[] =
+{
+ {"k", N_("generate PIC code"), &pic_code, 1, NULL},
+ {"mthumb", N_("assemble Thumb code"), &thumb_mode, 1, NULL},
+ {"mthumb-interwork", N_("support ARM/Thumb interworking"),
+ &support_interwork, 1, NULL},
+ {"mapcs-32", N_("code uses 32-bit program counter"), &uses_apcs_26, 0, NULL},
+ {"mapcs-26", N_("code uses 26-bit program counter"), &uses_apcs_26, 1, NULL},
+ {"mapcs-float", N_("floating point args are in fp regs"), &uses_apcs_float,
+ 1, NULL},
+ {"mapcs-reentrant", N_("re-entrant code"), &pic_code, 1, NULL},
+ {"matpcs", N_("code is ATPCS conformant"), &atpcs, 1, NULL},
+ {"mbig-endian", N_("assemble for big-endian"), &target_big_endian, 1, NULL},
+ {"mlittle-endian", N_("assemble for little-endian"), &target_big_endian, 0,
+ NULL},
- /* Note whether this will delete the relocation. */
- if (fixP->fx_addsy == 0 && !fixP->fx_pcrel)
- fixP->fx_done = 1;
+ /* These are recognized by the assembler, but have no affect on code. */
+ {"mapcs-frame", N_("use frame pointer"), NULL, 0, NULL},
+ {"mapcs-stack-check", N_("use stack size checking"), NULL, 0, NULL},
- /* If this symbol is in a different section then we need to leave it for
- the linker to deal with. Unfortunately, md_pcrel_from can't tell,
- so we have to undo it's effects here. */
- if (fixP->fx_pcrel)
- {
- if (fixP->fx_addsy != NULL
- && S_IS_DEFINED (fixP->fx_addsy)
- && S_GET_SEGMENT (fixP->fx_addsy) != seg)
- value += md_pcrel_from (fixP);
- }
-
- /* Remember value for emit_reloc. */
- fixP->fx_addnumber = value;
-
- switch (fixP->fx_r_type)
- {
- case BFD_RELOC_NONE:
- /* This will need to go in the object file. */
- fixP->fx_done = 0;
- break;
-
- case BFD_RELOC_ARM_IMMEDIATE:
- /* We claim that this fixup has been processed here,
- even if in fact we generate an error because we do
- not have a reloc for it, so tc_gen_reloc will reject it. */
- fixP->fx_done = 1;
-
- if (fixP->fx_addsy
- && ! S_IS_DEFINED (fixP->fx_addsy))
- {
- as_bad_where (fixP->fx_file, fixP->fx_line,
- _("undefined symbol %s used as an immediate value"),
- S_GET_NAME (fixP->fx_addsy));
- break;
- }
-
- newimm = validate_immediate (value);
- temp = md_chars_to_number (buf, INSN_SIZE);
-
- /* If the instruction will fail, see if we can fix things up by
- changing the opcode. */
- if (newimm == (unsigned int) FAIL
- && (newimm = negate_data_op (&temp, value)) == (unsigned int) FAIL)
- {
- as_bad_where (fixP->fx_file, fixP->fx_line,
- _("invalid constant (%lx) after fixup"),
- (unsigned long) value);
- break;
- }
-
- newimm |= (temp & 0xfffff000);
- md_number_to_chars (buf, (valueT) newimm, INSN_SIZE);
- break;
-
- case BFD_RELOC_ARM_ADRL_IMMEDIATE:
- {
- unsigned int highpart = 0;
- unsigned int newinsn = 0xe1a00000; /* nop. */
-
- newimm = validate_immediate (value);
- temp = md_chars_to_number (buf, INSN_SIZE);
-
- /* If the instruction will fail, see if we can fix things up by
- changing the opcode. */
- if (newimm == (unsigned int) FAIL
- && (newimm = negate_data_op (& temp, value)) == (unsigned int) FAIL)
- {
- /* No ? OK - try using two ADD instructions to generate
- the value. */
- newimm = validate_immediate_twopart (value, & highpart);
-
- /* Yes - then make sure that the second instruction is
- also an add. */
- if (newimm != (unsigned int) FAIL)
- newinsn = temp;
- /* Still No ? Try using a negated value. */
- else if ((newimm = validate_immediate_twopart (- value, & highpart)) != (unsigned int) FAIL)
- temp = newinsn = (temp & OPCODE_MASK) | OPCODE_SUB << DATA_OP_SHIFT;
- /* Otherwise - give up. */
- else
- {
- as_bad_where (fixP->fx_file, fixP->fx_line,
- _("unable to compute ADRL instructions for PC offset of 0x%lx"),
- (long) value);
- break;
- }
-
- /* Replace the first operand in the 2nd instruction (which
- is the PC) with the destination register. We have
- already added in the PC in the first instruction and we
- do not want to do it again. */
- newinsn &= ~ 0xf0000;
- newinsn |= ((newinsn & 0x0f000) << 4);
- }
-
- newimm |= (temp & 0xfffff000);
- md_number_to_chars (buf, (valueT) newimm, INSN_SIZE);
-
- highpart |= (newinsn & 0xfffff000);
- md_number_to_chars (buf + INSN_SIZE, (valueT) highpart, INSN_SIZE);
- }
- break;
-
- case BFD_RELOC_ARM_OFFSET_IMM:
- sign = value >= 0;
-
- if (value < 0)
- value = - value;
-
- if (validate_offset_imm (value, 0) == FAIL)
- {
- as_bad_where (fixP->fx_file, fixP->fx_line,
- _("bad immediate value for offset (%ld)"),
- (long) value);
- break;
- }
-
- newval = md_chars_to_number (buf, INSN_SIZE);
- newval &= 0xff7ff000;
- newval |= value | (sign ? INDEX_UP : 0);
- md_number_to_chars (buf, newval, INSN_SIZE);
- break;
-
- case BFD_RELOC_ARM_OFFSET_IMM8:
- case BFD_RELOC_ARM_HWLITERAL:
- sign = value >= 0;
-
- if (value < 0)
- value = - value;
-
- if (validate_offset_imm (value, 1) == FAIL)
- {
- if (fixP->fx_r_type == BFD_RELOC_ARM_HWLITERAL)
- as_bad_where (fixP->fx_file, fixP->fx_line,
- _("invalid literal constant: pool needs to be closer"));
- else
- as_bad (_("bad immediate value for half-word offset (%ld)"),
- (long) value);
- break;
- }
-
- newval = md_chars_to_number (buf, INSN_SIZE);
- newval &= 0xff7ff0f0;
- newval |= ((value >> 4) << 8) | (value & 0xf) | (sign ? INDEX_UP : 0);
- md_number_to_chars (buf, newval, INSN_SIZE);
- break;
-
- case BFD_RELOC_ARM_LITERAL:
- sign = value >= 0;
-
- if (value < 0)
- value = - value;
-
- if (validate_offset_imm (value, 0) == FAIL)
- {
- as_bad_where (fixP->fx_file, fixP->fx_line,
- _("invalid literal constant: pool needs to be closer"));
- break;
- }
-
- newval = md_chars_to_number (buf, INSN_SIZE);
- newval &= 0xff7ff000;
- newval |= value | (sign ? INDEX_UP : 0);
- md_number_to_chars (buf, newval, INSN_SIZE);
- break;
-
- case BFD_RELOC_ARM_SHIFT_IMM:
- newval = md_chars_to_number (buf, INSN_SIZE);
- if (((unsigned long) value) > 32
- || (value == 32
- && (((newval & 0x60) == 0) || (newval & 0x60) == 0x60)))
- {
- as_bad_where (fixP->fx_file, fixP->fx_line,
- _("shift expression is too large"));
- break;
- }
-
- if (value == 0)
- /* Shifts of zero must be done as lsl. */
- newval &= ~0x60;
- else if (value == 32)
- value = 0;
- newval &= 0xfffff07f;
- newval |= (value & 0x1f) << 7;
- md_number_to_chars (buf, newval, INSN_SIZE);
- break;
-
- case BFD_RELOC_ARM_SMI:
- if (((unsigned long) value) > 0xffff)
- as_bad_where (fixP->fx_file, fixP->fx_line,
- _("invalid smi expression"));
- newval = md_chars_to_number (buf, INSN_SIZE) & 0xfff000f0;
- newval |= (value & 0xf) | ((value & 0xfff0) << 4);
- md_number_to_chars (buf, newval, INSN_SIZE);
- break;
-
- case BFD_RELOC_ARM_SWI:
- if (arm_data->thumb_mode)
- {
- if (((unsigned long) value) > 0xff)
- as_bad_where (fixP->fx_file, fixP->fx_line,
- _("invalid swi expression"));
- newval = md_chars_to_number (buf, THUMB_SIZE) & 0xff00;
- newval |= value;
- md_number_to_chars (buf, newval, THUMB_SIZE);
- }
- else
- {
- if (((unsigned long) value) > 0x00ffffff)
- as_bad_where (fixP->fx_file, fixP->fx_line,
- _("invalid swi expression"));
- newval = md_chars_to_number (buf, INSN_SIZE) & 0xff000000;
- newval |= value;
- md_number_to_chars (buf, newval, INSN_SIZE);
- }
- break;
-
- case BFD_RELOC_ARM_MULTI:
- if (((unsigned long) value) > 0xffff)
- as_bad_where (fixP->fx_file, fixP->fx_line,
- _("invalid expression in load/store multiple"));
- newval = value | md_chars_to_number (buf, INSN_SIZE);
- md_number_to_chars (buf, newval, INSN_SIZE);
- break;
-
- case BFD_RELOC_ARM_PCREL_BRANCH:
- newval = md_chars_to_number (buf, INSN_SIZE);
-
- /* Sign-extend a 24-bit number. */
-#define SEXT24(x) ((((x) & 0xffffff) ^ (~ 0x7fffff)) + 0x800000)
-
-#ifdef OBJ_ELF
- value = fixP->fx_offset;
-#endif
-
- /* We are going to store value (shifted right by two) in the
- instruction, in a 24 bit, signed field. Thus we need to check
- that none of the top 8 bits of the shifted value (top 7 bits of
- the unshifted, unsigned value) are set, or that they are all set. */
- if ((value & ~ ((offsetT) 0x1ffffff)) != 0
- && ((value & ~ ((offsetT) 0x1ffffff)) != ~ ((offsetT) 0x1ffffff)))
- {
-#ifdef OBJ_ELF
- /* Normally we would be stuck at this point, since we cannot store
- the absolute address that is the destination of the branch in the
- 24 bits of the branch instruction. If however, we happen to know
- that the destination of the branch is in the same section as the
- branch instruction itself, then we can compute the relocation for
- ourselves and not have to bother the linker with it.
-
- FIXME: The test for OBJ_ELF is only here because I have not
- worked out how to do this for OBJ_COFF. */
- if (fixP->fx_addsy != NULL
- && S_IS_DEFINED (fixP->fx_addsy)
- && S_GET_SEGMENT (fixP->fx_addsy) == seg)
- {
- /* Get pc relative value to go into the branch. */
- value = * valP;
-
- /* Permit a backward branch provided that enough bits
- are set. Allow a forwards branch, provided that
- enough bits are clear. */
- if ( (value & ~ ((offsetT) 0x1ffffff)) == ~ ((offsetT) 0x1ffffff)
- || (value & ~ ((offsetT) 0x1ffffff)) == 0)
- fixP->fx_done = 1;
- }
-
- if (! fixP->fx_done)
-#endif
- as_bad_where (fixP->fx_file, fixP->fx_line,
- _("GAS can't handle same-section branch dest >= 0x04000000"));
- }
-
- value >>= 2;
- value += SEXT24 (newval);
-
- if ( (value & ~ ((offsetT) 0xffffff)) != 0
- && ((value & ~ ((offsetT) 0xffffff)) != ~ ((offsetT) 0xffffff)))
- as_bad_where (fixP->fx_file, fixP->fx_line,
- _("out of range branch"));
-
- if (seg->use_rela_p && !fixP->fx_done)
- {
- /* Must unshift the value before storing it in the addend. */
- value <<= 2;
-#ifdef OBJ_ELF
- fixP->fx_offset = value;
-#endif
- fixP->fx_addnumber = value;
- newval = newval & 0xff000000;
- }
- else
- newval = (value & 0x00ffffff) | (newval & 0xff000000);
- md_number_to_chars (buf, newval, INSN_SIZE);
- break;
-
- case BFD_RELOC_ARM_PCREL_BLX:
- {
- offsetT hbit;
- newval = md_chars_to_number (buf, INSN_SIZE);
-
-#ifdef OBJ_ELF
- value = fixP->fx_offset;
-#endif
- hbit = (value >> 1) & 1;
- value = (value >> 2) & 0x00ffffff;
- value = (value + (newval & 0x00ffffff)) & 0x00ffffff;
-
- if (seg->use_rela_p && !fixP->fx_done)
- {
- /* Must sign-extend and unshift the value before storing
- it in the addend. */
- value = SEXT24 (value);
- value = (value << 2) | hbit;
-#ifdef OBJ_ELF
- fixP->fx_offset = value;
-#endif
- fixP->fx_addnumber = value;
- newval = newval & 0xfe000000;
- }
- else
- newval = value | (newval & 0xfe000000) | (hbit << 24);
- md_number_to_chars (buf, newval, INSN_SIZE);
- }
- break;
-
- case BFD_RELOC_THUMB_PCREL_BRANCH9: /* Conditional branch. */
- newval = md_chars_to_number (buf, THUMB_SIZE);
- {
- addressT diff = (newval & 0xff) << 1;
- if (diff & 0x100)
- diff |= ~0xff;
-
- value += diff;
- if ((value & ~0xff) && ((value & ~0xff) != ~0xff))
- as_bad_where (fixP->fx_file, fixP->fx_line,
- _("branch out of range"));
- if (seg->use_rela_p && !fixP->fx_done)
- {
-#ifdef OBJ_ELF
- fixP->fx_offset = value;
-#endif
- fixP->fx_addnumber = value;
- newval = newval & 0xff00;
- }
- else
- newval = (newval & 0xff00) | ((value & 0x1ff) >> 1);
- }
- md_number_to_chars (buf, newval, THUMB_SIZE);
- break;
-
- case BFD_RELOC_THUMB_PCREL_BRANCH12: /* Unconditional branch. */
- newval = md_chars_to_number (buf, THUMB_SIZE);
- {
- addressT diff = (newval & 0x7ff) << 1;
- if (diff & 0x800)
- diff |= ~0x7ff;
-
- value += diff;
- if ((value & ~0x7ff) && ((value & ~0x7ff) != ~0x7ff))
- as_bad_where (fixP->fx_file, fixP->fx_line,
- _("branch out of range"));
- if (seg->use_rela_p && !fixP->fx_done)
- {
-#ifdef OBJ_ELF
- fixP->fx_offset = value;
-#endif
- fixP->fx_addnumber = value;
- newval = newval & 0xf800;
- }
- else
- newval = (newval & 0xf800) | ((value & 0xfff) >> 1);
- }
- md_number_to_chars (buf, newval, THUMB_SIZE);
- break;
-
- case BFD_RELOC_THUMB_PCREL_BLX:
- case BFD_RELOC_THUMB_PCREL_BRANCH23:
- {
- offsetT newval2;
- addressT diff;
-
- newval = md_chars_to_number (buf, THUMB_SIZE);
- newval2 = md_chars_to_number (buf + THUMB_SIZE, THUMB_SIZE);
- diff = ((newval & 0x7ff) << 12) | ((newval2 & 0x7ff) << 1);
- if (diff & 0x400000)
- diff |= ~0x3fffff;
-#ifdef OBJ_ELF
- value = fixP->fx_offset;
-#endif
- value += diff;
-
- if ((value & ~0x3fffff) && ((value & ~0x3fffff) != ~0x3fffff))
- as_bad_where (fixP->fx_file, fixP->fx_line,
- _("branch with link out of range"));
-
- if (fixP->fx_r_type == BFD_RELOC_THUMB_PCREL_BLX)
- /* For a BLX instruction, make sure that the relocation is rounded up
- to a word boundary. This follows the semantics of the instruction
- which specifies that bit 1 of the target address will come from bit
- 1 of the base address. */
- value = (value + 1) & ~ 1;
-
- if (seg->use_rela_p && !fixP->fx_done)
- {
-#ifdef OBJ_ELF
- fixP->fx_offset = value;
-#endif
- fixP->fx_addnumber = value;
- newval = newval & 0xf800;
- newval2 = newval2 & 0xf800;
- }
- else
- {
- newval = (newval & 0xf800) | ((value & 0x7fffff) >> 12);
- newval2 = (newval2 & 0xf800) | ((value & 0xfff) >> 1);
- }
- md_number_to_chars (buf, newval, THUMB_SIZE);
- md_number_to_chars (buf + THUMB_SIZE, newval2, THUMB_SIZE);
- }
- break;
-
- case BFD_RELOC_8:
- if (seg->use_rela_p && !fixP->fx_done)
- break;
- if (fixP->fx_done || fixP->fx_pcrel)
- md_number_to_chars (buf, value, 1);
-#ifdef OBJ_ELF
- else
- {
- value = fixP->fx_offset;
- md_number_to_chars (buf, value, 1);
- }
-#endif
- break;
-
- case BFD_RELOC_16:
- if (seg->use_rela_p && !fixP->fx_done)
- break;
- if (fixP->fx_done || fixP->fx_pcrel)
- md_number_to_chars (buf, value, 2);
-#ifdef OBJ_ELF
- else
- {
- value = fixP->fx_offset;
- md_number_to_chars (buf, value, 2);
- }
-#endif
- break;
-
-#ifdef OBJ_ELF
- case BFD_RELOC_ARM_TLS_GD32:
- case BFD_RELOC_ARM_TLS_LE32:
- case BFD_RELOC_ARM_TLS_IE32:
- case BFD_RELOC_ARM_TLS_LDM32:
- case BFD_RELOC_ARM_TLS_LDO32:
- S_SET_THREAD_LOCAL (fixP->fx_addsy);
- /* fall through */
-
- case BFD_RELOC_ARM_GOT32:
- case BFD_RELOC_ARM_GOTOFF:
- case BFD_RELOC_ARM_TARGET2:
- if (seg->use_rela_p && !fixP->fx_done)
- break;
- md_number_to_chars (buf, 0, 4);
- break;
-#endif
-
- case BFD_RELOC_RVA:
- case BFD_RELOC_32:
- case BFD_RELOC_ARM_TARGET1:
- case BFD_RELOC_ARM_ROSEGREL32:
- case BFD_RELOC_ARM_SBREL32:
- case BFD_RELOC_32_PCREL:
- if (seg->use_rela_p && !fixP->fx_done)
- break;
- if (fixP->fx_done || fixP->fx_pcrel)
- md_number_to_chars (buf, value, 4);
-#ifdef OBJ_ELF
- else
- {
- value = fixP->fx_offset;
- md_number_to_chars (buf, value, 4);
- }
-#endif
- break;
-
-#ifdef OBJ_ELF
- case BFD_RELOC_ARM_PREL31:
- if (fixP->fx_done || fixP->fx_pcrel)
- {
- newval = md_chars_to_number (buf, 4) & 0x80000000;
- if ((value ^ (value >> 1)) & 0x40000000)
- {
- as_bad_where (fixP->fx_file, fixP->fx_line,
- _("rel31 relocation overflow"));
- }
- newval |= value & 0x7fffffff;
- md_number_to_chars (buf, newval, 4);
- }
- break;
-
- case BFD_RELOC_ARM_PLT32:
- /* It appears the instruction is fully prepared at this point. */
- break;
-#endif
-
- case BFD_RELOC_ARM_CP_OFF_IMM:
- sign = value >= 0;
- if (value < -1023 || value > 1023 || (value & 3))
- as_bad_where (fixP->fx_file, fixP->fx_line,
- _("illegal value for co-processor offset"));
- if (value < 0)
- value = -value;
- newval = md_chars_to_number (buf, INSN_SIZE) & 0xff7fff00;
- newval |= (value >> 2) | (sign ? INDEX_UP : 0);
- md_number_to_chars (buf, newval, INSN_SIZE);
- break;
-
- case BFD_RELOC_ARM_CP_OFF_IMM_S2:
- sign = value >= 0;
- if (value < -255 || value > 255)
- as_bad_where (fixP->fx_file, fixP->fx_line,
- _("Illegal value for co-processor offset"));
- if (value < 0)
- value = -value;
- newval = md_chars_to_number (buf, INSN_SIZE) & 0xff7fff00;
- newval |= value | (sign ? INDEX_UP : 0);
- md_number_to_chars (buf, newval , INSN_SIZE);
- break;
-
- case BFD_RELOC_ARM_THUMB_OFFSET:
- newval = md_chars_to_number (buf, THUMB_SIZE);
- /* Exactly what ranges, and where the offset is inserted depends
- on the type of instruction, we can establish this from the
- top 4 bits. */
- switch (newval >> 12)
- {
- case 4: /* PC load. */
- /* Thumb PC loads are somewhat odd, bit 1 of the PC is
- forced to zero for these loads, so we will need to round
- up the offset if the instruction address is not word
- aligned (since the final address produced must be, and
- we can only describe word-aligned immediate offsets). */
-
- if ((fixP->fx_frag->fr_address + fixP->fx_where + value) & 3)
- as_bad_where (fixP->fx_file, fixP->fx_line,
- _("invalid offset, target not word aligned (0x%08X)"),
- (unsigned int) (fixP->fx_frag->fr_address
- + fixP->fx_where + value));
-
- if ((value + 2) & ~0x3fe)
- as_bad_where (fixP->fx_file, fixP->fx_line,
- _("invalid offset, value too big (0x%08lX)"),
- (long) value);
-
- /* Round up, since pc will be rounded down. */
- newval |= (value + 2) >> 2;
- break;
-
- case 9: /* SP load/store. */
- if (value & ~0x3fc)
- as_bad_where (fixP->fx_file, fixP->fx_line,
- _("invalid offset, value too big (0x%08lX)"),
- (long) value);
- newval |= value >> 2;
- break;
-
- case 6: /* Word load/store. */
- if (value & ~0x7c)
- as_bad_where (fixP->fx_file, fixP->fx_line,
- _("invalid offset, value too big (0x%08lX)"),
- (long) value);
- newval |= value << 4; /* 6 - 2. */
- break;
-
- case 7: /* Byte load/store. */
- if (value & ~0x1f)
- as_bad_where (fixP->fx_file, fixP->fx_line,
- _("invalid offset, value too big (0x%08lX)"),
- (long) value);
- newval |= value << 6;
- break;
-
- case 8: /* Halfword load/store. */
- if (value & ~0x3e)
- as_bad_where (fixP->fx_file, fixP->fx_line,
- _("invalid offset, value too big (0x%08lX)"),
- (long) value);
- newval |= value << 5; /* 6 - 1. */
- break;
-
- default:
- as_bad_where (fixP->fx_file, fixP->fx_line,
- "Unable to process relocation for thumb opcode: %lx",
- (unsigned long) newval);
- break;
- }
- md_number_to_chars (buf, newval, THUMB_SIZE);
- break;
-
- case BFD_RELOC_ARM_THUMB_ADD:
- /* This is a complicated relocation, since we use it for all of
- the following immediate relocations:
-
- 3bit ADD/SUB
- 8bit ADD/SUB
- 9bit ADD/SUB SP word-aligned
- 10bit ADD PC/SP word-aligned
-
- The type of instruction being processed is encoded in the
- instruction field:
-
- 0x8000 SUB
- 0x00F0 Rd
- 0x000F Rs
- */
- newval = md_chars_to_number (buf, THUMB_SIZE);
- {
- int rd = (newval >> 4) & 0xf;
- int rs = newval & 0xf;
- int subtract = newval & 0x8000;
-
- if (rd == REG_SP)
- {
- if (value & ~0x1fc)
- as_bad_where (fixP->fx_file, fixP->fx_line,
- _("invalid immediate for stack address calculation"));
- newval = subtract ? T_OPCODE_SUB_ST : T_OPCODE_ADD_ST;
- newval |= value >> 2;
- }
- else if (rs == REG_PC || rs == REG_SP)
- {
- if (subtract ||
- value & ~0x3fc)
- as_bad_where (fixP->fx_file, fixP->fx_line,
- _("invalid immediate for address calculation (value = 0x%08lX)"),
- (unsigned long) value);
- newval = (rs == REG_PC ? T_OPCODE_ADD_PC : T_OPCODE_ADD_SP);
- newval |= rd << 8;
- newval |= value >> 2;
- }
- else if (rs == rd)
- {
- if (value & ~0xff)
- as_bad_where (fixP->fx_file, fixP->fx_line,
- _("invalid 8bit immediate"));
- newval = subtract ? T_OPCODE_SUB_I8 : T_OPCODE_ADD_I8;
- newval |= (rd << 8) | value;
- }
- else
- {
- if (value & ~0x7)
- as_bad_where (fixP->fx_file, fixP->fx_line,
- _("invalid 3bit immediate"));
- newval = subtract ? T_OPCODE_SUB_I3 : T_OPCODE_ADD_I3;
- newval |= rd | (rs << 3) | (value << 6);
- }
- }
- md_number_to_chars (buf, newval, THUMB_SIZE);
- break;
-
- case BFD_RELOC_ARM_THUMB_IMM:
- newval = md_chars_to_number (buf, THUMB_SIZE);
- switch (newval >> 11)
- {
- case 0x04: /* 8bit immediate MOV. */
- case 0x05: /* 8bit immediate CMP. */
- if (value < 0 || value > 255)
- as_bad_where (fixP->fx_file, fixP->fx_line,
- _("invalid immediate: %ld is too large"),
- (long) value);
- newval |= value;
- break;
-
- default:
- abort ();
- }
- md_number_to_chars (buf, newval, THUMB_SIZE);
- break;
-
- case BFD_RELOC_ARM_THUMB_SHIFT:
- /* 5bit shift value (0..31). */
- if (value < 0 || value > 31)
- as_bad_where (fixP->fx_file, fixP->fx_line,
- _("illegal Thumb shift value: %ld"), (long) value);
- newval = md_chars_to_number (buf, THUMB_SIZE) & 0xf03f;
- newval |= value << 6;
- md_number_to_chars (buf, newval, THUMB_SIZE);
- break;
-
- case BFD_RELOC_VTABLE_INHERIT:
- case BFD_RELOC_VTABLE_ENTRY:
- fixP->fx_done = 0;
- return;
-
- case BFD_RELOC_UNUSED:
- default:
- as_bad_where (fixP->fx_file, fixP->fx_line,
- _("bad relocation fixup type (%d)"), fixP->fx_r_type);
- }
-}
-
-/* Translate internal representation of relocation info to BFD target
- format. */
-
-arelent *
-tc_gen_reloc (asection * section ATTRIBUTE_UNUSED,
- fixS * fixp)
-{
- arelent * reloc;
- bfd_reloc_code_real_type code;
-
- reloc = xmalloc (sizeof (arelent));
-
- reloc->sym_ptr_ptr = xmalloc (sizeof (asymbol *));
- *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
- reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
-
- /* @@ Why fx_addnumber sometimes and fx_offset other times? */
-#ifndef OBJ_ELF
- if (fixp->fx_pcrel == 0)
- reloc->addend = fixp->fx_offset;
- else
- reloc->addend = fixp->fx_offset = reloc->address;
-#else /* OBJ_ELF */
- reloc->addend = fixp->fx_offset;
-#endif
-
- switch (fixp->fx_r_type)
- {
- case BFD_RELOC_8:
- if (fixp->fx_pcrel)
- {
- code = BFD_RELOC_8_PCREL;
- break;
- }
-
- case BFD_RELOC_16:
- if (fixp->fx_pcrel)
- {
- code = BFD_RELOC_16_PCREL;
- break;
- }
-
- case BFD_RELOC_32:
- if (fixp->fx_pcrel)
- {
- code = BFD_RELOC_32_PCREL;
- break;
- }
-
- case BFD_RELOC_NONE:
- case BFD_RELOC_ARM_PCREL_BRANCH:
- case BFD_RELOC_ARM_PCREL_BLX:
- case BFD_RELOC_RVA:
- case BFD_RELOC_THUMB_PCREL_BRANCH9:
- case BFD_RELOC_THUMB_PCREL_BRANCH12:
- case BFD_RELOC_THUMB_PCREL_BRANCH23:
- case BFD_RELOC_THUMB_PCREL_BLX:
- case BFD_RELOC_VTABLE_ENTRY:
- case BFD_RELOC_VTABLE_INHERIT:
- code = fixp->fx_r_type;
- break;
-
- case BFD_RELOC_ARM_LITERAL:
- case BFD_RELOC_ARM_HWLITERAL:
- /* If this is called then the a literal has
- been referenced across a section boundary. */
- as_bad_where (fixp->fx_file, fixp->fx_line,
- _("literal referenced across section boundary"));
- return NULL;
-
-#ifdef OBJ_ELF
- case BFD_RELOC_ARM_GOT32:
- case BFD_RELOC_ARM_GOTOFF:
- case BFD_RELOC_ARM_PLT32:
- case BFD_RELOC_ARM_TARGET1:
- case BFD_RELOC_ARM_ROSEGREL32:
- case BFD_RELOC_ARM_SBREL32:
- case BFD_RELOC_ARM_PREL31:
- case BFD_RELOC_ARM_TARGET2:
- case BFD_RELOC_ARM_TLS_LE32:
- case BFD_RELOC_ARM_TLS_LDO32:
- code = fixp->fx_r_type;
- break;
-
- case BFD_RELOC_ARM_TLS_GD32:
- case BFD_RELOC_ARM_TLS_IE32:
- case BFD_RELOC_ARM_TLS_LDM32:
- /* BFD will include the symbol's address in the addend.
- But we don't want that, so subtract it out again here. */
- if (!S_IS_COMMON (fixp->fx_addsy))
- reloc->addend -= (*reloc->sym_ptr_ptr)->value;
- code = fixp->fx_r_type;
- break;
-#endif
-
- case BFD_RELOC_ARM_IMMEDIATE:
- as_bad_where (fixp->fx_file, fixp->fx_line,
- _("internal relocation (type: IMMEDIATE) not fixed up"));
- return NULL;
-
- case BFD_RELOC_ARM_ADRL_IMMEDIATE:
- as_bad_where (fixp->fx_file, fixp->fx_line,
- _("ADRL used for a symbol not defined in the same file"));
- return NULL;
-
- case BFD_RELOC_ARM_OFFSET_IMM:
- if (fixp->fx_addsy != NULL
- && !S_IS_DEFINED (fixp->fx_addsy)
- && S_IS_LOCAL (fixp->fx_addsy))
- {
- as_bad_where (fixp->fx_file, fixp->fx_line,
- _("undefined local label `%s'"),
- S_GET_NAME (fixp->fx_addsy));
- return NULL;
- }
-
- as_bad_where (fixp->fx_file, fixp->fx_line,
- _("internal_relocation (type: OFFSET_IMM) not fixed up"));
- return NULL;
-
- default:
- {
- char * type;
-
- switch (fixp->fx_r_type)
- {
- case BFD_RELOC_NONE: type = "NONE"; break;
- case BFD_RELOC_ARM_OFFSET_IMM8: type = "OFFSET_IMM8"; break;
- case BFD_RELOC_ARM_SHIFT_IMM: type = "SHIFT_IMM"; break;
- case BFD_RELOC_ARM_SMI: type = "SMI"; break;
- case BFD_RELOC_ARM_SWI: type = "SWI"; break;
- case BFD_RELOC_ARM_MULTI: type = "MULTI"; break;
- case BFD_RELOC_ARM_CP_OFF_IMM: type = "CP_OFF_IMM"; break;
- case BFD_RELOC_ARM_THUMB_ADD: type = "THUMB_ADD"; break;
- case BFD_RELOC_ARM_THUMB_SHIFT: type = "THUMB_SHIFT"; break;
- case BFD_RELOC_ARM_THUMB_IMM: type = "THUMB_IMM"; break;
- case BFD_RELOC_ARM_THUMB_OFFSET: type = "THUMB_OFFSET"; break;
- default: type = _("<unknown>"); break;
- }
- as_bad_where (fixp->fx_file, fixp->fx_line,
- _("cannot represent %s relocation in this object file format"),
- type);
- return NULL;
- }
- }
-
-#ifdef OBJ_ELF
- if ((code == BFD_RELOC_32_PCREL || code == BFD_RELOC_32)
- && GOT_symbol
- && fixp->fx_addsy == GOT_symbol)
- {
- code = BFD_RELOC_ARM_GOTPC;
- reloc->addend = fixp->fx_offset = reloc->address;
- }
-#endif
-
- reloc->howto = bfd_reloc_type_lookup (stdoutput, code);
-
- if (reloc->howto == NULL)
- {
- as_bad_where (fixp->fx_file, fixp->fx_line,
- _("cannot represent %s relocation in this object file format"),
- bfd_get_reloc_code_name (code));
- return NULL;
- }
-
- /* HACK: Since arm ELF uses Rel instead of Rela, encode the
- vtable entry to be used in the relocation's section offset. */
- if (fixp->fx_r_type == BFD_RELOC_VTABLE_ENTRY)
- reloc->address = fixp->fx_offset;
-
- return reloc;
-}
-
-int
-md_estimate_size_before_relax (fragS * fragP ATTRIBUTE_UNUSED,
- segT segtype ATTRIBUTE_UNUSED)
-{
- as_fatal (_("md_estimate_size_before_relax\n"));
- return 1;
-}
-
-/* We need to be able to fix up arbitrary expressions in some statements.
- This is so that we can handle symbols that are an arbitrary distance from
- the pc. The most common cases are of the form ((+/-sym -/+ . - 8) & mask),
- which returns part of an address in a form which will be valid for
- a data instruction. We do this by pushing the expression into a symbol
- in the expr_section, and creating a fix for that. */
-
-static void
-fix_new_arm (fragS * frag,
- int where,
- short int size,
- expressionS * exp,
- int pc_rel,
- int reloc)
-{
- fixS * new_fix;
- arm_fix_data * arm_data;
-
- switch (exp->X_op)
- {
- case O_constant:
- case O_symbol:
- case O_add:
- case O_subtract:
- new_fix = fix_new_exp (frag, where, size, exp, pc_rel, reloc);
- break;
-
- default:
- new_fix = fix_new (frag, where, size, make_expr_symbol (exp), 0,
- pc_rel, reloc);
- break;
- }
-
- /* Mark whether the fix is to a THUMB instruction, or an ARM
- instruction. */
- arm_data = obstack_alloc (& notes, sizeof (arm_fix_data));
- new_fix->tc_fix_data = (PTR) arm_data;
- arm_data->thumb_mode = thumb_mode;
-}
-
-static void
-output_inst (const char * str)
-{
- char * to = NULL;
-
- if (inst.error)
- {
- as_bad ("%s -- `%s'", inst.error, str);
- return;
- }
-
- to = frag_more (inst.size);
-
- if (thumb_mode && (inst.size > THUMB_SIZE))
- {
- assert (inst.size == (2 * THUMB_SIZE));
- md_number_to_chars (to, inst.instruction >> 16, THUMB_SIZE);
- md_number_to_chars (to + THUMB_SIZE, inst.instruction, THUMB_SIZE);
- }
- else if (inst.size > INSN_SIZE)
- {
- assert (inst.size == (2 * INSN_SIZE));
- md_number_to_chars (to, inst.instruction, INSN_SIZE);
- md_number_to_chars (to + INSN_SIZE, inst.instruction, INSN_SIZE);
- }
- else
- md_number_to_chars (to, inst.instruction, inst.size);
-
- if (inst.reloc.type != BFD_RELOC_UNUSED)
- fix_new_arm (frag_now, to - frag_now->fr_literal,
- inst.size, & inst.reloc.exp, inst.reloc.pc_rel,
- inst.reloc.type);
-
-#ifdef OBJ_ELF
- dwarf2_emit_insn (inst.size);
-#endif
-}
-
-void
-md_assemble (char * str)
-{
- char c;
- char *p;
- char *start;
-
- /* Align the previous label if needed. */
- if (last_label_seen != NULL)
- {
- symbol_set_frag (last_label_seen, frag_now);
- S_SET_VALUE (last_label_seen, (valueT) frag_now_fix ());
- S_SET_SEGMENT (last_label_seen, now_seg);
- }
-
- memset (&inst, '\0', sizeof (inst));
- inst.reloc.type = BFD_RELOC_UNUSED;
-
- skip_whitespace (str);
-
- /* Scan up to the end of the op-code, which must end in white space or
- end of string. */
- for (start = p = str; *p != '\0'; p++)
- if (*p == ' ')
- break;
-
- if (p == str)
- {
- as_bad (_("no operator -- statement `%s'\n"), str);
- return;
- }
-
- if (thumb_mode)
- {
- const struct thumb_opcode * opcode;
-
- c = *p;
- *p = '\0';
- opcode = (const struct thumb_opcode *) hash_find (arm_tops_hsh, str);
- *p = c;
-
- if (opcode)
- {
- /* Check that this instruction is supported for this CPU. */
- if (thumb_mode == 1 && (opcode->variant & cpu_variant) == 0)
- {
- as_bad (_("selected processor does not support `%s'"), str);
- return;
- }
-
- mapping_state (MAP_THUMB);
- inst.instruction = opcode->value;
- inst.size = opcode->size;
- opcode->parms (p);
- output_inst (str);
- return;
- }
- }
- else
- {
- const struct asm_opcode * opcode;
-
- c = *p;
- *p = '\0';
- opcode = (const struct asm_opcode *) hash_find (arm_ops_hsh, str);
- *p = c;
-
- if (opcode)
- {
- /* Check that this instruction is supported for this CPU. */
- if ((opcode->variant & cpu_variant) == 0)
- {
- as_bad (_("selected processor does not support `%s'"), str);
- return;
- }
-
- mapping_state (MAP_ARM);
- inst.instruction = opcode->value;
- inst.size = INSN_SIZE;
- opcode->parms (p);
- output_inst (str);
- return;
- }
- }
-
- /* It wasn't an instruction, but it might be a register alias of the form
- alias .req reg. */
- if (create_register_alias (str, p))
- return;
-
- as_bad (_("bad instruction `%s'"), start);
-}
-
-/* md_parse_option
- Invocation line includes a switch not recognized by the base assembler.
- See if it's a processor-specific option.
-
- This routine is somewhat complicated by the need for backwards
- compatibility (since older releases of gcc can't be changed).
- The new options try to make the interface as compatible as
- possible with GCC.
-
- New options (supported) are:
-
- -mcpu=<cpu name> Assemble for selected processor
- -march=<architecture name> Assemble for selected architecture
- -mfpu=<fpu architecture> Assemble for selected FPU.
- -EB/-mbig-endian Big-endian
- -EL/-mlittle-endian Little-endian
- -k Generate PIC code
- -mthumb Start in Thumb mode
- -mthumb-interwork Code supports ARM/Thumb interworking
-
- For now we will also provide support for:
-
- -mapcs-32 32-bit Program counter
- -mapcs-26 26-bit Program counter
- -macps-float Floats passed in FP registers
- -mapcs-reentrant Reentrant code
- -matpcs
- (sometime these will probably be replaced with -mapcs=<list of options>
- and -matpcs=<list of options>)
-
- The remaining options are only supported for back-wards compatibility.
- Cpu variants, the arm part is optional:
- -m[arm]1 Currently not supported.
- -m[arm]2, -m[arm]250 Arm 2 and Arm 250 processor
- -m[arm]3 Arm 3 processor
- -m[arm]6[xx], Arm 6 processors
- -m[arm]7[xx][t][[d]m] Arm 7 processors
- -m[arm]8[10] Arm 8 processors
- -m[arm]9[20][tdmi] Arm 9 processors
- -mstrongarm[110[0]] StrongARM processors
- -mxscale XScale processors
- -m[arm]v[2345[t[e]]] Arm architectures
- -mall All (except the ARM1)
- FP variants:
- -mfpa10, -mfpa11 FPA10 and 11 co-processor instructions
- -mfpe-old (No float load/store multiples)
- -mvfpxd VFP Single precision
- -mvfp All VFP
- -mno-fpu Disable all floating point instructions
-
- The following CPU names are recognized:
- arm1, arm2, arm250, arm3, arm6, arm600, arm610, arm620,
- arm7, arm7m, arm7d, arm7dm, arm7di, arm7dmi, arm70, arm700,
- arm700i, arm710 arm710t, arm720, arm720t, arm740t, arm710c,
- arm7100, arm7500, arm7500fe, arm7tdmi, arm8, arm810, arm9,
- arm920, arm920t, arm940t, arm946, arm966, arm9tdmi, arm9e,
- arm10t arm10e, arm1020t, arm1020e, arm10200e,
- strongarm, strongarm110, strongarm1100, strongarm1110, xscale.
-
- */
-
-const char * md_shortopts = "m:k";
-
-#ifdef ARM_BI_ENDIAN
-#define OPTION_EB (OPTION_MD_BASE + 0)
-#define OPTION_EL (OPTION_MD_BASE + 1)
-#else
-#if TARGET_BYTES_BIG_ENDIAN
-#define OPTION_EB (OPTION_MD_BASE + 0)
-#else
-#define OPTION_EL (OPTION_MD_BASE + 1)
-#endif
-#endif
-
-struct option md_longopts[] =
-{
-#ifdef OPTION_EB
- {"EB", no_argument, NULL, OPTION_EB},
-#endif
-#ifdef OPTION_EL
- {"EL", no_argument, NULL, OPTION_EL},
-#endif
- {NULL, no_argument, NULL, 0}
-};
-
-size_t md_longopts_size = sizeof (md_longopts);
-
-struct arm_option_table
-{
- char *option; /* Option name to match. */
- char *help; /* Help information. */
- int *var; /* Variable to change. */
- int value; /* What to change it to. */
- char *deprecated; /* If non-null, print this message. */
-};
-
-struct arm_option_table arm_opts[] =
-{
- {"k", N_("generate PIC code"), &pic_code, 1, NULL},
- {"mthumb", N_("assemble Thumb code"), &thumb_mode, 1, NULL},
- {"mthumb-interwork", N_("support ARM/Thumb interworking"),
- &support_interwork, 1, NULL},
- {"mapcs-32", N_("code uses 32-bit program counter"), &uses_apcs_26, 0, NULL},
- {"mapcs-26", N_("code uses 26-bit program counter"), &uses_apcs_26, 1, NULL},
- {"mapcs-float", N_("floating point args are in fp regs"), &uses_apcs_float,
- 1, NULL},
- {"mapcs-reentrant", N_("re-entrant code"), &pic_code, 1, NULL},
- {"matpcs", N_("code is ATPCS conformant"), &atpcs, 1, NULL},
- {"mbig-endian", N_("assemble for big-endian"), &target_big_endian, 1, NULL},
- {"mlittle-endian", N_("assemble for little-endian"), &target_big_endian, 0,
- NULL},
-
- /* These are recognized by the assembler, but have no affect on code. */
- {"mapcs-frame", N_("use frame pointer"), NULL, 0, NULL},
- {"mapcs-stack-check", N_("use stack size checking"), NULL, 0, NULL},
-
- /* DON'T add any new processors to this list -- we want the whole list
- to go away... Add them to the processors table instead. */
- {"marm1", NULL, &legacy_cpu, ARM_ARCH_V1, N_("use -mcpu=arm1")},
- {"m1", NULL, &legacy_cpu, ARM_ARCH_V1, N_("use -mcpu=arm1")},
- {"marm2", NULL, &legacy_cpu, ARM_ARCH_V2, N_("use -mcpu=arm2")},
- {"m2", NULL, &legacy_cpu, ARM_ARCH_V2, N_("use -mcpu=arm2")},
- {"marm250", NULL, &legacy_cpu, ARM_ARCH_V2S, N_("use -mcpu=arm250")},
- {"m250", NULL, &legacy_cpu, ARM_ARCH_V2S, N_("use -mcpu=arm250")},
- {"marm3", NULL, &legacy_cpu, ARM_ARCH_V2S, N_("use -mcpu=arm3")},
- {"m3", NULL, &legacy_cpu, ARM_ARCH_V2S, N_("use -mcpu=arm3")},
- {"marm6", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm6")},
- {"m6", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm6")},
- {"marm600", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm600")},
- {"m600", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm600")},
- {"marm610", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm610")},
- {"m610", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm610")},
- {"marm620", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm620")},
- {"m620", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm620")},
- {"marm7", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7")},
- {"m7", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7")},
- {"marm70", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm70")},
- {"m70", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm70")},
- {"marm700", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm700")},
- {"m700", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm700")},
- {"marm700i", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm700i")},
- {"m700i", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm700i")},
- {"marm710", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm710")},
- {"m710", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm710")},
- {"marm710c", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm710c")},
- {"m710c", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm710c")},
- {"marm720", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm720")},
- {"m720", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm720")},
- {"marm7d", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7d")},
- {"m7d", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7d")},
- {"marm7di", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7di")},
- {"m7di", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7di")},
- {"marm7m", NULL, &legacy_cpu, ARM_ARCH_V3M, N_("use -mcpu=arm7m")},
- {"m7m", NULL, &legacy_cpu, ARM_ARCH_V3M, N_("use -mcpu=arm7m")},
- {"marm7dm", NULL, &legacy_cpu, ARM_ARCH_V3M, N_("use -mcpu=arm7dm")},
- {"m7dm", NULL, &legacy_cpu, ARM_ARCH_V3M, N_("use -mcpu=arm7dm")},
- {"marm7dmi", NULL, &legacy_cpu, ARM_ARCH_V3M, N_("use -mcpu=arm7dmi")},
- {"m7dmi", NULL, &legacy_cpu, ARM_ARCH_V3M, N_("use -mcpu=arm7dmi")},
- {"marm7100", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7100")},
- {"m7100", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7100")},
- {"marm7500", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7500")},
- {"m7500", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7500")},
- {"marm7500fe", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7500fe")},
- {"m7500fe", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7500fe")},
- {"marm7t", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm7tdmi")},
- {"m7t", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm7tdmi")},
- {"marm7tdmi", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm7tdmi")},
- {"m7tdmi", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm7tdmi")},
- {"marm710t", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm710t")},
- {"m710t", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm710t")},
- {"marm720t", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm720t")},
- {"m720t", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm720t")},
- {"marm740t", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm740t")},
- {"m740t", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm740t")},
- {"marm8", NULL, &legacy_cpu, ARM_ARCH_V4, N_("use -mcpu=arm8")},
- {"m8", NULL, &legacy_cpu, ARM_ARCH_V4, N_("use -mcpu=arm8")},
- {"marm810", NULL, &legacy_cpu, ARM_ARCH_V4, N_("use -mcpu=arm810")},
- {"m810", NULL, &legacy_cpu, ARM_ARCH_V4, N_("use -mcpu=arm810")},
- {"marm9", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm9")},
- {"m9", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm9")},
- {"marm9tdmi", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm9tdmi")},
- {"m9tdmi", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm9tdmi")},
- {"marm920", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm920")},
- {"m920", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm920")},
- {"marm940", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm940")},
- {"m940", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm940")},
- {"mstrongarm", NULL, &legacy_cpu, ARM_ARCH_V4, N_("use -mcpu=strongarm")},
- {"mstrongarm110", NULL, &legacy_cpu, ARM_ARCH_V4,
- N_("use -mcpu=strongarm110")},
- {"mstrongarm1100", NULL, &legacy_cpu, ARM_ARCH_V4,
- N_("use -mcpu=strongarm1100")},
- {"mstrongarm1110", NULL, &legacy_cpu, ARM_ARCH_V4,
- N_("use -mcpu=strongarm1110")},
- {"mxscale", NULL, &legacy_cpu, ARM_ARCH_XSCALE, N_("use -mcpu=xscale")},
- {"miwmmxt", NULL, &legacy_cpu, ARM_ARCH_IWMMXT, N_("use -mcpu=iwmmxt")},
- {"mall", NULL, &legacy_cpu, ARM_ANY, N_("use -mcpu=all")},
-
- /* Architecture variants -- don't add any more to this list either. */
- {"mv2", NULL, &legacy_cpu, ARM_ARCH_V2, N_("use -march=armv2")},
- {"marmv2", NULL, &legacy_cpu, ARM_ARCH_V2, N_("use -march=armv2")},
- {"mv2a", NULL, &legacy_cpu, ARM_ARCH_V2S, N_("use -march=armv2a")},
- {"marmv2a", NULL, &legacy_cpu, ARM_ARCH_V2S, N_("use -march=armv2a")},
- {"mv3", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -march=armv3")},
- {"marmv3", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -march=armv3")},
- {"mv3m", NULL, &legacy_cpu, ARM_ARCH_V3M, N_("use -march=armv3m")},
- {"marmv3m", NULL, &legacy_cpu, ARM_ARCH_V3M, N_("use -march=armv3m")},
- {"mv4", NULL, &legacy_cpu, ARM_ARCH_V4, N_("use -march=armv4")},
- {"marmv4", NULL, &legacy_cpu, ARM_ARCH_V4, N_("use -march=armv4")},
- {"mv4t", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -march=armv4t")},
- {"marmv4t", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -march=armv4t")},
- {"mv5", NULL, &legacy_cpu, ARM_ARCH_V5, N_("use -march=armv5")},
- {"marmv5", NULL, &legacy_cpu, ARM_ARCH_V5, N_("use -march=armv5")},
- {"mv5t", NULL, &legacy_cpu, ARM_ARCH_V5T, N_("use -march=armv5t")},
- {"marmv5t", NULL, &legacy_cpu, ARM_ARCH_V5T, N_("use -march=armv5t")},
- {"mv5e", NULL, &legacy_cpu, ARM_ARCH_V5TE, N_("use -march=armv5te")},
- {"marmv5e", NULL, &legacy_cpu, ARM_ARCH_V5TE, N_("use -march=armv5te")},
-
- /* Floating point variants -- don't add any more to this list either. */
- {"mfpe-old", NULL, &legacy_fpu, FPU_ARCH_FPE, N_("use -mfpu=fpe")},
- {"mfpa10", NULL, &legacy_fpu, FPU_ARCH_FPA, N_("use -mfpu=fpa10")},
- {"mfpa11", NULL, &legacy_fpu, FPU_ARCH_FPA, N_("use -mfpu=fpa11")},
- {"mno-fpu", NULL, &legacy_fpu, 0,
- N_("use either -mfpu=softfpa or -mfpu=softvfp")},
-
- {NULL, NULL, NULL, 0, NULL}
-};
-
-struct arm_cpu_option_table
-{
- char *name;
- int value;
- /* For some CPUs we assume an FPU unless the user explicitly sets
- -mfpu=... */
- int default_fpu;
-};
-
-/* This list should, at a minimum, contain all the cpu names
- recognized by GCC. */
-static struct arm_cpu_option_table arm_cpus[] =
-{
- {"all", ARM_ANY, FPU_ARCH_FPA},
- {"arm1", ARM_ARCH_V1, FPU_ARCH_FPA},
- {"arm2", ARM_ARCH_V2, FPU_ARCH_FPA},
- {"arm250", ARM_ARCH_V2S, FPU_ARCH_FPA},
- {"arm3", ARM_ARCH_V2S, FPU_ARCH_FPA},
- {"arm6", ARM_ARCH_V3, FPU_ARCH_FPA},
- {"arm60", ARM_ARCH_V3, FPU_ARCH_FPA},
- {"arm600", ARM_ARCH_V3, FPU_ARCH_FPA},
- {"arm610", ARM_ARCH_V3, FPU_ARCH_FPA},
- {"arm620", ARM_ARCH_V3, FPU_ARCH_FPA},
- {"arm7", ARM_ARCH_V3, FPU_ARCH_FPA},
- {"arm7m", ARM_ARCH_V3M, FPU_ARCH_FPA},
- {"arm7d", ARM_ARCH_V3, FPU_ARCH_FPA},
- {"arm7dm", ARM_ARCH_V3M, FPU_ARCH_FPA},
- {"arm7di", ARM_ARCH_V3, FPU_ARCH_FPA},
- {"arm7dmi", ARM_ARCH_V3M, FPU_ARCH_FPA},
- {"arm70", ARM_ARCH_V3, FPU_ARCH_FPA},
- {"arm700", ARM_ARCH_V3, FPU_ARCH_FPA},
- {"arm700i", ARM_ARCH_V3, FPU_ARCH_FPA},
- {"arm710", ARM_ARCH_V3, FPU_ARCH_FPA},
- {"arm710t", ARM_ARCH_V4T, FPU_ARCH_FPA},
- {"arm720", ARM_ARCH_V3, FPU_ARCH_FPA},
- {"arm720t", ARM_ARCH_V4T, FPU_ARCH_FPA},
- {"arm740t", ARM_ARCH_V4T, FPU_ARCH_FPA},
- {"arm710c", ARM_ARCH_V3, FPU_ARCH_FPA},
- {"arm7100", ARM_ARCH_V3, FPU_ARCH_FPA},
- {"arm7500", ARM_ARCH_V3, FPU_ARCH_FPA},
- {"arm7500fe", ARM_ARCH_V3, FPU_ARCH_FPA},
- {"arm7t", ARM_ARCH_V4T, FPU_ARCH_FPA},
- {"arm7tdmi", ARM_ARCH_V4T, FPU_ARCH_FPA},
- {"arm7tdmi-s", ARM_ARCH_V4T, FPU_ARCH_FPA},
- {"arm8", ARM_ARCH_V4, FPU_ARCH_FPA},
- {"arm810", ARM_ARCH_V4, FPU_ARCH_FPA},
- {"strongarm", ARM_ARCH_V4, FPU_ARCH_FPA},
- {"strongarm1", ARM_ARCH_V4, FPU_ARCH_FPA},
- {"strongarm110", ARM_ARCH_V4, FPU_ARCH_FPA},
- {"strongarm1100", ARM_ARCH_V4, FPU_ARCH_FPA},
- {"strongarm1110", ARM_ARCH_V4, FPU_ARCH_FPA},
- {"arm9", ARM_ARCH_V4T, FPU_ARCH_FPA},
- {"arm920", ARM_ARCH_V4T, FPU_ARCH_FPA},
- {"arm920t", ARM_ARCH_V4T, FPU_ARCH_FPA},
- {"arm922t", ARM_ARCH_V4T, FPU_ARCH_FPA},
- {"arm940t", ARM_ARCH_V4T, FPU_ARCH_FPA},
- {"arm9tdmi", ARM_ARCH_V4T, FPU_ARCH_FPA},
- /* For V5 or later processors we default to using VFP; but the user
- should really set the FPU type explicitly. */
- {"arm9e-r0", ARM_ARCH_V5TExP, FPU_ARCH_VFP_V2},
- {"arm9e", ARM_ARCH_V5TE, FPU_ARCH_VFP_V2},
- {"arm926ej", ARM_ARCH_V5TEJ, FPU_ARCH_VFP_V2},
- {"arm926ejs", ARM_ARCH_V5TEJ, FPU_ARCH_VFP_V2},
- {"arm926ej-s", ARM_ARCH_V5TEJ, FPU_ARCH_VFP_V2},
- {"arm946e-r0", ARM_ARCH_V5TExP, FPU_ARCH_VFP_V2},
- {"arm946e", ARM_ARCH_V5TE, FPU_ARCH_VFP_V2},
- {"arm966e-r0", ARM_ARCH_V5TExP, FPU_ARCH_VFP_V2},
- {"arm966e", ARM_ARCH_V5TE, FPU_ARCH_VFP_V2},
- {"arm10t", ARM_ARCH_V5T, FPU_ARCH_VFP_V1},
- {"arm10e", ARM_ARCH_V5TE, FPU_ARCH_VFP_V2},
- {"arm1020", ARM_ARCH_V5TE, FPU_ARCH_VFP_V2},
- {"arm1020t", ARM_ARCH_V5T, FPU_ARCH_VFP_V1},
- {"arm1020e", ARM_ARCH_V5TE, FPU_ARCH_VFP_V2},
- {"arm1026ejs", ARM_ARCH_V5TEJ, FPU_ARCH_VFP_V2},
- {"arm1026ej-s", ARM_ARCH_V5TEJ, FPU_ARCH_VFP_V2},
- {"arm1136js", ARM_ARCH_V6, FPU_NONE},
- {"arm1136j-s", ARM_ARCH_V6, FPU_NONE},
- {"arm1136jfs", ARM_ARCH_V6, FPU_ARCH_VFP_V2},
- {"arm1136jf-s", ARM_ARCH_V6, FPU_ARCH_VFP_V2},
- {"mpcore", ARM_ARCH_V6K, FPU_ARCH_VFP_V2},
- {"mpcorenovfp", ARM_ARCH_V6K, FPU_NONE},
- {"arm1176jz-s", ARM_ARCH_V6ZK, FPU_NONE},
- {"arm1176jzf-s", ARM_ARCH_V6ZK, FPU_ARCH_VFP_V2},
- /* ??? XSCALE is really an architecture. */
- {"xscale", ARM_ARCH_XSCALE, FPU_ARCH_VFP_V2},
- /* ??? iwmmxt is not a processor. */
- {"iwmmxt", ARM_ARCH_IWMMXT, FPU_ARCH_VFP_V2},
- {"i80200", ARM_ARCH_XSCALE, FPU_ARCH_VFP_V2},
- /* Maverick */
- {"ep9312", ARM_ARCH_V4T | ARM_CEXT_MAVERICK, FPU_ARCH_MAVERICK},
- {NULL, 0, 0}
-};
-
-struct arm_arch_option_table
-{
- char *name;
- int value;
- int default_fpu;
-};
-
-/* This list should, at a minimum, contain all the architecture names
- recognized by GCC. */
-static struct arm_arch_option_table arm_archs[] =
-{
- {"all", ARM_ANY, FPU_ARCH_FPA},
- {"armv1", ARM_ARCH_V1, FPU_ARCH_FPA},
- {"armv2", ARM_ARCH_V2, FPU_ARCH_FPA},
- {"armv2a", ARM_ARCH_V2S, FPU_ARCH_FPA},
- {"armv2s", ARM_ARCH_V2S, FPU_ARCH_FPA},
- {"armv3", ARM_ARCH_V3, FPU_ARCH_FPA},
- {"armv3m", ARM_ARCH_V3M, FPU_ARCH_FPA},
- {"armv4", ARM_ARCH_V4, FPU_ARCH_FPA},
- {"armv4xm", ARM_ARCH_V4xM, FPU_ARCH_FPA},
- {"armv4t", ARM_ARCH_V4T, FPU_ARCH_FPA},
- {"armv4txm", ARM_ARCH_V4TxM, FPU_ARCH_FPA},
- {"armv5", ARM_ARCH_V5, FPU_ARCH_VFP},
- {"armv5t", ARM_ARCH_V5T, FPU_ARCH_VFP},
- {"armv5txm", ARM_ARCH_V5TxM, FPU_ARCH_VFP},
- {"armv5te", ARM_ARCH_V5TE, FPU_ARCH_VFP},
- {"armv5texp", ARM_ARCH_V5TExP, FPU_ARCH_VFP},
- {"armv5tej", ARM_ARCH_V5TEJ, FPU_ARCH_VFP},
- {"armv6", ARM_ARCH_V6, FPU_ARCH_VFP},
- {"armv6j", ARM_ARCH_V6, FPU_ARCH_VFP},
- {"armv6k", ARM_ARCH_V6K, FPU_ARCH_VFP},
- {"armv6z", ARM_ARCH_V6Z, FPU_ARCH_VFP},
- {"armv6zk", ARM_ARCH_V6ZK, FPU_ARCH_VFP},
- {"armv6t2", ARM_ARCH_V6T2, FPU_ARCH_VFP},
- {"armv6kt2", ARM_ARCH_V6KT2, FPU_ARCH_VFP},
- {"armv6zt2", ARM_ARCH_V6ZT2, FPU_ARCH_VFP},
- {"armv6zkt2", ARM_ARCH_V6ZKT2, FPU_ARCH_VFP},
- {"xscale", ARM_ARCH_XSCALE, FPU_ARCH_VFP},
- {"iwmmxt", ARM_ARCH_IWMMXT, FPU_ARCH_VFP},
- {NULL, 0, 0}
-};
-
-/* ISA extensions in the co-processor space. */
-struct arm_arch_extension_table
-{
- char *name;
- int value;
-};
-
-static struct arm_arch_extension_table arm_extensions[] =
-{
- {"maverick", ARM_CEXT_MAVERICK},
- {"xscale", ARM_CEXT_XSCALE},
- {"iwmmxt", ARM_CEXT_IWMMXT},
- {NULL, 0}
-};
-
-struct arm_fpu_option_table
-{
- char *name;
- int value;
-};
-
-/* This list should, at a minimum, contain all the fpu names
- recognized by GCC. */
-static struct arm_fpu_option_table arm_fpus[] =
-{
- {"softfpa", FPU_NONE},
- {"fpe", FPU_ARCH_FPE},
- {"fpe2", FPU_ARCH_FPE},
- {"fpe3", FPU_ARCH_FPA}, /* Third release supports LFM/SFM. */
- {"fpa", FPU_ARCH_FPA},
- {"fpa10", FPU_ARCH_FPA},
- {"fpa11", FPU_ARCH_FPA},
- {"arm7500fe", FPU_ARCH_FPA},
- {"softvfp", FPU_ARCH_VFP},
- {"softvfp+vfp", FPU_ARCH_VFP_V2},
- {"vfp", FPU_ARCH_VFP_V2},
- {"vfp9", FPU_ARCH_VFP_V2},
- {"vfp10", FPU_ARCH_VFP_V2},
- {"vfp10-r0", FPU_ARCH_VFP_V1},
- {"vfpxd", FPU_ARCH_VFP_V1xD},
- {"arm1020t", FPU_ARCH_VFP_V1},
- {"arm1020e", FPU_ARCH_VFP_V2},
- {"arm1136jfs", FPU_ARCH_VFP_V2},
- {"arm1136jf-s", FPU_ARCH_VFP_V2},
- {"maverick", FPU_ARCH_MAVERICK},
- {NULL, 0}
-};
-
-struct arm_float_abi_option_table
-{
- char *name;
- int value;
-};
-
-static struct arm_float_abi_option_table arm_float_abis[] =
-{
- {"hard", ARM_FLOAT_ABI_HARD},
- {"softfp", ARM_FLOAT_ABI_SOFTFP},
- {"soft", ARM_FLOAT_ABI_SOFT},
- {NULL, 0}
-};
-
-struct arm_eabi_option_table
-{
- char *name;
- unsigned int value;
-};
-
-#ifdef OBJ_ELF
-/* We only know how to output GNU and ver 4 (AAELF) formats. */
-static struct arm_eabi_option_table arm_eabis[] =
-{
- {"gnu", EF_ARM_EABI_UNKNOWN},
- {"4", EF_ARM_EABI_VER4},
- {NULL, 0}
-};
-#endif
-
-struct arm_long_option_table
-{
- char * option; /* Substring to match. */
- char * help; /* Help information. */
- int (* func) (char * subopt); /* Function to decode sub-option. */
- char * deprecated; /* If non-null, print this message. */
-};
-
-static int
-arm_parse_extension (char * str, int * opt_p)
-{
- while (str != NULL && *str != 0)
- {
- struct arm_arch_extension_table * opt;
- char * ext;
- int optlen;
-
- if (*str != '+')
- {
- as_bad (_("invalid architectural extension"));
- return 0;
- }
-
- str++;
- ext = strchr (str, '+');
-
- if (ext != NULL)
- optlen = ext - str;
- else
- optlen = strlen (str);
-
- if (optlen == 0)
- {
- as_bad (_("missing architectural extension"));
- return 0;
- }
-
- for (opt = arm_extensions; opt->name != NULL; opt++)
- if (strncmp (opt->name, str, optlen) == 0)
- {
- *opt_p |= opt->value;
- break;
- }
-
- if (opt->name == NULL)
- {
- as_bad (_("unknown architectural extnsion `%s'"), str);
- return 0;
- }
-
- str = ext;
- };
-
- return 1;
-}
-
-static int
-arm_parse_cpu (char * str)
-{
- struct arm_cpu_option_table * opt;
- char * ext = strchr (str, '+');
- int optlen;
-
- if (ext != NULL)
- optlen = ext - str;
- else
- optlen = strlen (str);
-
- if (optlen == 0)
- {
- as_bad (_("missing cpu name `%s'"), str);
- return 0;
- }
-
- for (opt = arm_cpus; opt->name != NULL; opt++)
- if (strncmp (opt->name, str, optlen) == 0)
- {
- mcpu_cpu_opt = opt->value;
- mcpu_fpu_opt = opt->default_fpu;
-
- if (ext != NULL)
- return arm_parse_extension (ext, &mcpu_cpu_opt);
-
- return 1;
- }
-
- as_bad (_("unknown cpu `%s'"), str);
- return 0;
-}
-
-static int
-arm_parse_arch (char * str)
-{
- struct arm_arch_option_table *opt;
- char *ext = strchr (str, '+');
- int optlen;
-
- if (ext != NULL)
- optlen = ext - str;
- else
- optlen = strlen (str);
-
- if (optlen == 0)
- {
- as_bad (_("missing architecture name `%s'"), str);
- return 0;
- }
-
-
- for (opt = arm_archs; opt->name != NULL; opt++)
- if (streq (opt->name, str))
- {
- march_cpu_opt = opt->value;
- march_fpu_opt = opt->default_fpu;
-
- if (ext != NULL)
- return arm_parse_extension (ext, &march_cpu_opt);
-
- return 1;
- }
-
- as_bad (_("unknown architecture `%s'\n"), str);
- return 0;
-}
-
-static int
-arm_parse_fpu (char * str)
-{
- struct arm_fpu_option_table * opt;
-
- for (opt = arm_fpus; opt->name != NULL; opt++)
- if (streq (opt->name, str))
- {
- mfpu_opt = opt->value;
- return 1;
- }
-
- as_bad (_("unknown floating point format `%s'\n"), str);
- return 0;
-}
-
-static int
-arm_parse_float_abi (char * str)
-{
- struct arm_float_abi_option_table * opt;
-
- for (opt = arm_float_abis; opt->name != NULL; opt++)
- if (streq (opt->name, str))
- {
- mfloat_abi_opt = opt->value;
- return 1;
- }
-
- as_bad (_("unknown floating point abi `%s'\n"), str);
- return 0;
-}
-
-#ifdef OBJ_ELF
-static int
-arm_parse_eabi (char * str)
-{
- struct arm_eabi_option_table *opt;
-
- for (opt = arm_eabis; opt->name != NULL; opt++)
- if (streq (opt->name, str))
- {
- meabi_flags = opt->value;
- return 1;
- }
- as_bad (_("unknown EABI `%s'\n"), str);
- return 0;
-}
-#endif
-
-struct arm_long_option_table arm_long_opts[] =
-{
- {"mcpu=", N_("<cpu name>\t assemble for CPU <cpu name>"),
- arm_parse_cpu, NULL},
- {"march=", N_("<arch name>\t assemble for architecture <arch name>"),
- arm_parse_arch, NULL},
- {"mfpu=", N_("<fpu name>\t assemble for FPU architecture <fpu name>"),
- arm_parse_fpu, NULL},
- {"mfloat-abi=", N_("<abi>\t assemble for floating point ABI <abi>"),
- arm_parse_float_abi, NULL},
-#ifdef OBJ_ELF
- {"meabi=", N_("<ver>\t assemble for eabi version <ver>"),
- arm_parse_eabi, NULL},
-#endif
- {NULL, NULL, 0, NULL}
-};
-
-int
-md_parse_option (int c, char * arg)
-{
- struct arm_option_table *opt;
- struct arm_long_option_table *lopt;
-
- switch (c)
- {
-#ifdef OPTION_EB
- case OPTION_EB:
- target_big_endian = 1;
- break;
-#endif
-
-#ifdef OPTION_EL
- case OPTION_EL:
- target_big_endian = 0;
- break;
-#endif
-
- case 'a':
- /* Listing option. Just ignore these, we don't support additional
- ones. */
- return 0;
-
- default:
- for (opt = arm_opts; opt->option != NULL; opt++)
- {
- if (c == opt->option[0]
- && ((arg == NULL && opt->option[1] == 0)
- || streq (arg, opt->option + 1)))
- {
-#if WARN_DEPRECATED
- /* If the option is deprecated, tell the user. */
- if (opt->deprecated != NULL)
- as_tsktsk (_("option `-%c%s' is deprecated: %s"), c,
- arg ? arg : "", _(opt->deprecated));
-#endif
-
- if (opt->var != NULL)
- *opt->var = opt->value;
-
- return 1;
- }
- }
-
- for (lopt = arm_long_opts; lopt->option != NULL; lopt++)
- {
- /* These options are expected to have an argument. */
- if (c == lopt->option[0]
- && arg != NULL
- && strncmp (arg, lopt->option + 1,
- strlen (lopt->option + 1)) == 0)
- {
-#if WARN_DEPRECATED
- /* If the option is deprecated, tell the user. */
- if (lopt->deprecated != NULL)
- as_tsktsk (_("option `-%c%s' is deprecated: %s"), c, arg,
- _(lopt->deprecated));
-#endif
-
- /* Call the sup-option parser. */
- return lopt->func (arg + strlen (lopt->option) - 1);
- }
- }
-
- return 0;
- }
-
- return 1;
-}
-
-void
-md_show_usage (FILE * fp)
-{
- struct arm_option_table *opt;
- struct arm_long_option_table *lopt;
-
- fprintf (fp, _(" ARM-specific assembler options:\n"));
-
- for (opt = arm_opts; opt->option != NULL; opt++)
- if (opt->help != NULL)
- fprintf (fp, " -%-23s%s\n", opt->option, _(opt->help));
-
- for (lopt = arm_long_opts; lopt->option != NULL; lopt++)
- if (lopt->help != NULL)
- fprintf (fp, " -%s%s\n", lopt->option, _(lopt->help));
-
-#ifdef OPTION_EB
- fprintf (fp, _("\
- -EB assemble code for a big-endian cpu\n"));
-#endif
-
-#ifdef OPTION_EL
- fprintf (fp, _("\
- -EL assemble code for a little-endian cpu\n"));
-#endif
-}
-
-/* This fix_new is called by cons via TC_CONS_FIX_NEW. */
-
-void
-cons_fix_new_arm (fragS * frag,
- int where,
- int size,
- expressionS * exp)
-{
- bfd_reloc_code_real_type type;
- int pcrel = 0;
-
- /* Pick a reloc.
- FIXME: @@ Should look at CPU word size. */
- switch (size)
- {
- case 1:
- type = BFD_RELOC_8;
- break;
- case 2:
- type = BFD_RELOC_16;
- break;
- case 4:
- default:
- type = BFD_RELOC_32;
- break;
- case 8:
- type = BFD_RELOC_64;
- break;
- }
-
- fix_new_exp (frag, where, (int) size, exp, pcrel, type);
-}
-
-/* A good place to do this, although this was probably not intended
- for this kind of use. We need to dump the literal pool before
- references are made to a null symbol pointer. */
-
-void
-arm_cleanup (void)
-{
- literal_pool * pool;
-
- for (pool = list_of_pools; pool; pool = pool->next)
- {
- /* Put it at the end of the relevent section. */
- subseg_set (pool->section, pool->sub_section);
-#ifdef OBJ_ELF
- arm_elf_change_section ();
-#endif
- s_ltorg (0);
- }
-}
-
-void
-arm_start_line_hook (void)
-{
- last_label_seen = NULL;
-}
-
-void
-arm_frob_label (symbolS * sym)
-{
- last_label_seen = sym;
-
- ARM_SET_THUMB (sym, thumb_mode);
-
-#if defined OBJ_COFF || defined OBJ_ELF
- ARM_SET_INTERWORK (sym, support_interwork);
-#endif
-
- /* Note - do not allow local symbols (.Lxxx) to be labeled
- as Thumb functions. This is because these labels, whilst
- they exist inside Thumb code, are not the entry points for
- possible ARM->Thumb calls. Also, these labels can be used
- as part of a computed goto or switch statement. eg gcc
- can generate code that looks like this:
-
- ldr r2, [pc, .Laaa]
- lsl r3, r3, #2
- ldr r2, [r3, r2]
- mov pc, r2
-
- .Lbbb: .word .Lxxx
- .Lccc: .word .Lyyy
- ..etc...
- .Laaa: .word Lbbb
-
- The first instruction loads the address of the jump table.
- The second instruction converts a table index into a byte offset.
- The third instruction gets the jump address out of the table.
- The fourth instruction performs the jump.
-
- If the address stored at .Laaa is that of a symbol which has the
- Thumb_Func bit set, then the linker will arrange for this address
- to have the bottom bit set, which in turn would mean that the
- address computation performed by the third instruction would end
- up with the bottom bit set. Since the ARM is capable of unaligned
- word loads, the instruction would then load the incorrect address
- out of the jump table, and chaos would ensue. */
- if (label_is_thumb_function_name
- && (S_GET_NAME (sym)[0] != '.' || S_GET_NAME (sym)[1] != 'L')
- && (bfd_get_section_flags (stdoutput, now_seg) & SEC_CODE) != 0)
- {
- /* When the address of a Thumb function is taken the bottom
- bit of that address should be set. This will allow
- interworking between Arm and Thumb functions to work
- correctly. */
-
- THUMB_SET_FUNC (sym, 1);
-
- label_is_thumb_function_name = FALSE;
- }
-}
-
-/* Adjust the symbol table. This marks Thumb symbols as distinct from
- ARM ones. */
-
-void
-arm_adjust_symtab (void)
-{
-#ifdef OBJ_COFF
- symbolS * sym;
-
- for (sym = symbol_rootP; sym != NULL; sym = symbol_next (sym))
- {
- if (ARM_IS_THUMB (sym))
- {
- if (THUMB_IS_FUNC (sym))
- {
- /* Mark the symbol as a Thumb function. */
- if ( S_GET_STORAGE_CLASS (sym) == C_STAT
- || S_GET_STORAGE_CLASS (sym) == C_LABEL) /* This can happen! */
- S_SET_STORAGE_CLASS (sym, C_THUMBSTATFUNC);
-
- else if (S_GET_STORAGE_CLASS (sym) == C_EXT)
- S_SET_STORAGE_CLASS (sym, C_THUMBEXTFUNC);
- else
- as_bad (_("%s: unexpected function type: %d"),
- S_GET_NAME (sym), S_GET_STORAGE_CLASS (sym));
- }
- else switch (S_GET_STORAGE_CLASS (sym))
- {
- case C_EXT:
- S_SET_STORAGE_CLASS (sym, C_THUMBEXT);
- break;
- case C_STAT:
- S_SET_STORAGE_CLASS (sym, C_THUMBSTAT);
- break;
- case C_LABEL:
- S_SET_STORAGE_CLASS (sym, C_THUMBLABEL);
- break;
- default:
- /* Do nothing. */
- break;
- }
- }
-
- if (ARM_IS_INTERWORK (sym))
- coffsymbol (symbol_get_bfdsym (sym))->native->u.syment.n_flags = 0xFF;
- }
-#endif
-#ifdef OBJ_ELF
- symbolS * sym;
- char bind;
-
- for (sym = symbol_rootP; sym != NULL; sym = symbol_next (sym))
- {
- if (ARM_IS_THUMB (sym))
- {
- elf_symbol_type * elf_sym;
-
- elf_sym = elf_symbol (symbol_get_bfdsym (sym));
- bind = ELF_ST_BIND (elf_sym->internal_elf_sym.st_info);
-
- if (! bfd_is_arm_mapping_symbol_name (elf_sym->symbol.name))
- {
- /* If it's a .thumb_func, declare it as so,
- otherwise tag label as .code 16. */
- if (THUMB_IS_FUNC (sym))
- elf_sym->internal_elf_sym.st_info =
- ELF_ST_INFO (bind, STT_ARM_TFUNC);
- else
- elf_sym->internal_elf_sym.st_info =
- ELF_ST_INFO (bind, STT_ARM_16BIT);
- }
- }
- }
-#endif
-}
-
-int
-arm_data_in_code (void)
-{
- if (thumb_mode && ! strncmp (input_line_pointer + 1, "data:", 5))
- {
- *input_line_pointer = '/';
- input_line_pointer += 5;
- *input_line_pointer = 0;
- return 1;
- }
-
- return 0;
-}
-
-char *
-arm_canonicalize_symbol_name (char * name)
-{
- int len;
-
- if (thumb_mode && (len = strlen (name)) > 5
- && streq (name + len - 5, "/data"))
- *(name + len - 5) = 0;
-
- return name;
-}
-
-#if defined OBJ_COFF || defined OBJ_ELF
-void
-arm_validate_fix (fixS * fixP)
-{
- /* If the destination of the branch is a defined symbol which does not have
- the THUMB_FUNC attribute, then we must be calling a function which has
- the (interfacearm) attribute. We look for the Thumb entry point to that
- function and change the branch to refer to that function instead. */
- if (fixP->fx_r_type == BFD_RELOC_THUMB_PCREL_BRANCH23
- && fixP->fx_addsy != NULL
- && S_IS_DEFINED (fixP->fx_addsy)
- && ! THUMB_IS_FUNC (fixP->fx_addsy))
- {
- fixP->fx_addsy = find_real_start (fixP->fx_addsy);
- }
-}
-#endif
-
-int
-arm_force_relocation (struct fix * fixp)
-{
-#if defined (OBJ_COFF) && defined (TE_PE)
- if (fixp->fx_r_type == BFD_RELOC_RVA)
- return 1;
-#endif
-#ifdef OBJ_ELF
- if (fixp->fx_r_type == BFD_RELOC_ARM_PCREL_BRANCH
- || fixp->fx_r_type == BFD_RELOC_ARM_PCREL_BLX
- || fixp->fx_r_type == BFD_RELOC_THUMB_PCREL_BLX
- || fixp->fx_r_type == BFD_RELOC_THUMB_PCREL_BRANCH23)
- return 1;
-#endif
-
- /* Resolve these relocations even if the symbol is extern or weak. */
- if (fixp->fx_r_type == BFD_RELOC_ARM_IMMEDIATE
- || fixp->fx_r_type == BFD_RELOC_ARM_OFFSET_IMM
- || fixp->fx_r_type == BFD_RELOC_ARM_ADRL_IMMEDIATE)
- return 0;
-
- return generic_force_reloc (fixp);
-}
-
-#ifdef OBJ_COFF
-/* This is a little hack to help the gas/arm/adrl.s test. It prevents
- local labels from being added to the output symbol table when they
- are used with the ADRL pseudo op. The ADRL relocation should always
- be resolved before the binbary is emitted, so it is safe to say that
- it is adjustable. */
-
-bfd_boolean
-arm_fix_adjustable (fixS * fixP)
-{
- if (fixP->fx_r_type == BFD_RELOC_ARM_ADRL_IMMEDIATE)
- return 1;
- return 0;
-}
-#endif
-
-#ifdef OBJ_ELF
-/* Relocations against Thumb function names must be left unadjusted,
- so that the linker can use this information to correctly set the
- bottom bit of their addresses. The MIPS version of this function
- also prevents relocations that are mips-16 specific, but I do not
- know why it does this.
-
- FIXME:
- There is one other problem that ought to be addressed here, but
- which currently is not: Taking the address of a label (rather
- than a function) and then later jumping to that address. Such
- addresses also ought to have their bottom bit set (assuming that
- they reside in Thumb code), but at the moment they will not. */
-
-bfd_boolean
-arm_fix_adjustable (fixS * fixP)
-{
- if (fixP->fx_addsy == NULL)
- return 1;
-
- if (THUMB_IS_FUNC (fixP->fx_addsy)
- && fixP->fx_subsy == NULL)
- return 0;
-
- /* We need the symbol name for the VTABLE entries. */
- if ( fixP->fx_r_type == BFD_RELOC_VTABLE_INHERIT
- || fixP->fx_r_type == BFD_RELOC_VTABLE_ENTRY)
- return 0;
-
- /* Don't allow symbols to be discarded on GOT related relocs. */
- if (fixP->fx_r_type == BFD_RELOC_ARM_PLT32
- || fixP->fx_r_type == BFD_RELOC_ARM_GOT32
- || fixP->fx_r_type == BFD_RELOC_ARM_GOTOFF
- || fixP->fx_r_type == BFD_RELOC_ARM_TLS_GD32
- || fixP->fx_r_type == BFD_RELOC_ARM_TLS_LE32
- || fixP->fx_r_type == BFD_RELOC_ARM_TLS_IE32
- || fixP->fx_r_type == BFD_RELOC_ARM_TLS_LDM32
- || fixP->fx_r_type == BFD_RELOC_ARM_TLS_LDO32
- || fixP->fx_r_type == BFD_RELOC_ARM_TARGET2)
- return 0;
-
- return 1;
-}
-
-const char *
-elf32_arm_target_format (void)
-{
-#ifdef TE_SYMBIAN
- return (target_big_endian
- ? "elf32-bigarm-symbian"
- : "elf32-littlearm-symbian");
-#elif defined (TE_VXWORKS)
- return (target_big_endian
- ? "elf32-bigarm-vxworks"
- : "elf32-littlearm-vxworks");
-#else
- if (target_big_endian)
- return "elf32-bigarm";
- else
- return "elf32-littlearm";
-#endif
-}
-
-void
-armelf_frob_symbol (symbolS * symp,
- int * puntp)
-{
- elf_frob_symbol (symp, puntp);
-}
-
-static void
-s_arm_elf_cons (int nbytes)
-{
- expressionS exp;
-
-#ifdef md_flush_pending_output
- md_flush_pending_output ();
-#endif
-
- if (is_it_end_of_statement ())
- {
- demand_empty_rest_of_line ();
- return;
- }
-
-#ifdef md_cons_align
- md_cons_align (nbytes);
-#endif
-
- mapping_state (MAP_DATA);
- do
- {
- bfd_reloc_code_real_type reloc;
- char *sym_start;
- int sym_len;
-
- sym_start = input_line_pointer;
- expression (& exp);
- sym_len = input_line_pointer - sym_start;
-
- if (exp.X_op == O_symbol
- && * input_line_pointer == '('
- && (reloc = arm_parse_reloc ()) != BFD_RELOC_UNUSED)
- {
- reloc_howto_type *howto = bfd_reloc_type_lookup (stdoutput, reloc);
- int size = bfd_get_reloc_size (howto);
-
- if (size > nbytes)
- as_bad ("%s relocations do not fit in %d bytes",
- howto->name, nbytes);
- else
- {
- char *p;
- int offset = nbytes - size;
- char *saved_buf = alloca (sym_len), *saved_input;
-
- /* We've parsed an expression stopping at O_symbol. But there
- may be more expression left now that we have parsed the
- relocation marker. Parse it again. */
- saved_input = input_line_pointer - sym_len;
- memcpy (saved_buf, saved_input, sym_len);
- memmove (saved_input, sym_start, sym_len);
- input_line_pointer = saved_input;
- expression (& exp);
- memcpy (saved_input, saved_buf, sym_len);
- assert (input_line_pointer >= saved_input + sym_len);
-
- p = frag_more ((int) nbytes);
- fix_new_exp (frag_now, p - frag_now->fr_literal + offset, size,
- &exp, 0, reloc);
- }
- }
- else
- emit_expr (&exp, (unsigned int) nbytes);
- }
- while (*input_line_pointer++ == ',');
-
- /* Put terminator back into stream. */
- input_line_pointer --;
- demand_empty_rest_of_line ();
-}
-
-
-/* Parse a .rel31 directive. */
-
-static void
-s_arm_rel31 (int ignored ATTRIBUTE_UNUSED)
-{
- expressionS exp;
- char *p;
- valueT highbit;
-
- SKIP_WHITESPACE ();
-
- highbit = 0;
- if (*input_line_pointer == '1')
- highbit = 0x80000000;
- else if (*input_line_pointer != '0')
- as_bad (_("expected 0 or 1"));
-
- input_line_pointer++;
- SKIP_WHITESPACE ();
- if (*input_line_pointer != ',')
- as_bad (_("missing comma"));
- input_line_pointer++;
-
-#ifdef md_flush_pending_output
- md_flush_pending_output ();
-#endif
-
-#ifdef md_cons_align
- md_cons_align (4);
-#endif
-
- mapping_state (MAP_DATA);
-
- expression (&exp);
-
- p = frag_more (4);
- md_number_to_chars (p, highbit, 4);
- fix_new_arm (frag_now, p - frag_now->fr_literal, 4, &exp, 1,
- BFD_RELOC_ARM_PREL31);
-
- demand_empty_rest_of_line ();
-}
-\f
-/* Code to deal with unwinding tables. */
-
-static void add_unwind_adjustsp (offsetT);
-
-/* Switch to section NAME and create section if necessary. It's
- rather ugly that we have to manipulate input_line_pointer but I
- don't see any other way to accomplish the same thing without
- changing obj-elf.c (which may be the Right Thing, in the end).
- Copied from tc-ia64.c. */
-
-static void
-set_section (char *name)
-{
- char *saved_input_line_pointer;
-
- saved_input_line_pointer = input_line_pointer;
- input_line_pointer = name;
- obj_elf_section (0);
- input_line_pointer = saved_input_line_pointer;
-}
-
-/* Cenerate and deferred unwind frame offset. */
-
-static void
-flush_pending_unwind (void)
-{
- offsetT offset;
-
- offset = unwind.pending_offset;
- unwind.pending_offset = 0;
- if (offset != 0)
- add_unwind_adjustsp (offset);
-}
-
-/* Add an opcode to this list for this function. Two-byte opcodes should
- be passed as op[0] << 8 | op[1]. The list of opcodes is built in reverse
- order. */
-
-static void
-add_unwind_opcode (valueT op, int length)
-{
- /* Add any deferred stack adjustment. */
- if (unwind.pending_offset)
- flush_pending_unwind ();
-
- unwind.sp_restored = 0;
-
- if (unwind.opcode_count + length > unwind.opcode_alloc)
- {
- unwind.opcode_alloc += ARM_OPCODE_CHUNK_SIZE;
- if (unwind.opcodes)
- unwind.opcodes = xrealloc (unwind.opcodes,
- unwind.opcode_alloc);
- else
- unwind.opcodes = xmalloc (unwind.opcode_alloc);
- }
- while (length > 0)
- {
- length--;
- unwind.opcodes[unwind.opcode_count] = op & 0xff;
- op >>= 8;
- unwind.opcode_count++;
- }
-}
-
-/* Add unwind opcodes to adjust the stack pointer. */
-
-static void
-add_unwind_adjustsp (offsetT offset)
-{
- valueT op;
-
- if (offset > 0x200)
- {
- /* We need at most 5 bytes to hold a 32-bit value in a uleb128. */
- char bytes[5];
- int n;
- valueT o;
-
- /* Long form: 0xb2, uleb128. */
- /* This might not fit in a word so add the individual bytes,
- remembering the list is built in reverse order. */
- o = (valueT) ((offset - 0x204) >> 2);
- if (o == 0)
- add_unwind_opcode (0, 1);
-
- /* Calculate the uleb128 encoding of the offset. */
- n = 0;
- while (o)
- {
- bytes[n] = o & 0x7f;
- o >>= 7;
- if (o)
- bytes[n] |= 0x80;
- n++;
- }
- /* Add the insn. */
- for (; n; n--)
- add_unwind_opcode (bytes[n - 1], 1);
- add_unwind_opcode (0xb2, 1);
- }
- else if (offset > 0x100)
- {
- /* Two short opcodes. */
- add_unwind_opcode (0x3f, 1);
- op = (offset - 0x104) >> 2;
- add_unwind_opcode (op, 1);
- }
- else if (offset > 0)
- {
- /* Short opcode. */
- op = (offset - 4) >> 2;
- add_unwind_opcode (op, 1);
- }
- else if (offset < 0)
- {
- offset = -offset;
- while (offset > 0x100)
- {
- add_unwind_opcode (0x7f, 1);
- offset -= 0x100;
- }
- op = ((offset - 4) >> 2) | 0x40;
- add_unwind_opcode (op, 1);
- }
-}
-
-/* Finish the list of unwind opcodes for this function. */
-static void
-finish_unwind_opcodes (void)
-{
- valueT op;
-
- if (unwind.fp_used)
- {
- /* Adjust sp as neccessary. */
- unwind.pending_offset += unwind.fp_offset - unwind.frame_size;
- flush_pending_unwind ();
-
- /* After restoring sp from the frame pointer. */
- op = 0x90 | unwind.fp_reg;
- add_unwind_opcode (op, 1);
- }
- else
- flush_pending_unwind ();
-}
-
-
-/* Start an exception table entry. If idx is nonzero this is an index table
- entry. */
-
-static void
-start_unwind_section (const segT text_seg, int idx)
-{
- const char * text_name;
- const char * prefix;
- const char * prefix_once;
- size_t prefix_len;
- size_t text_len;
- char * sec_name;
- size_t sec_name_len;
-
- if (idx)
- {
- prefix = ELF_STRING_ARM_unwind;
- prefix_once = ELF_STRING_ARM_unwind_once;
- }
- else
- {
- prefix = ELF_STRING_ARM_unwind_info;
- prefix_once = ELF_STRING_ARM_unwind_info_once;
- }
-
- text_name = segment_name (text_seg);
- if (streq (text_name, ".text"))
- text_name = "";
-
- if (strncmp (text_name, ".gnu.linkonce.t.",
- strlen (".gnu.linkonce.t.")) == 0)
- {
- prefix = prefix_once;
- text_name += strlen (".gnu.linkonce.t.");
- }
-
- prefix_len = strlen (prefix);
- text_len = strlen (text_name);
- sec_name_len = prefix_len + text_len;
- sec_name = alloca (sec_name_len + 1);
- memcpy (sec_name, prefix, prefix_len);
- memcpy (sec_name + prefix_len, text_name, text_len);
- sec_name[prefix_len + text_len] = '\0';
-
- /* Handle COMDAT group. */
- if (prefix != prefix_once && (text_seg->flags & SEC_LINK_ONCE) != 0)
- {
- char *section;
- size_t len, group_name_len;
- const char *group_name = elf_group_name (text_seg);
-
- if (group_name == NULL)
- {
- as_bad ("Group section `%s' has no group signature",
- segment_name (text_seg));
- ignore_rest_of_line ();
- return;
- }
- /* We have to construct a fake section directive. */
- group_name_len = strlen (group_name);
- if (idx)
- prefix_len = 13;
- else
- prefix_len = 16;
-
- len = (sec_name_len
- + prefix_len /* ,"aG",%sectiontype, */
- + group_name_len /* ,group_name */
- + 7); /* ,comdat */
-
- section = alloca (len + 1);
- memcpy (section, sec_name, sec_name_len);
- if (idx)
- memcpy (section + sec_name_len, ",\"aG\",%exidx,", 13);
- else
- memcpy (section + sec_name_len, ",\"aG\",%progbits,", 16);
- memcpy (section + sec_name_len + prefix_len, group_name, group_name_len);
- memcpy (section + len - 7, ",comdat", 7);
- section [len] = '\0';
- set_section (section);
- }
- else
- {
- set_section (sec_name);
- bfd_set_section_flags (stdoutput, now_seg,
- SEC_LOAD | SEC_ALLOC | SEC_READONLY);
- }
-
- /* Set the setion link for index tables. */
- if (idx)
- elf_linked_to_section (now_seg) = text_seg;
-}
-
-
-/* Start an unwind table entry. HAVE_DATA is nonzero if we have additional
- personality routine data. Returns zero, or the index table value for
- and inline entry. */
-
-static valueT
-create_unwind_entry (int have_data)
-{
- int size;
- addressT where;
- char *ptr;
- /* The current word of data. */
- valueT data;
- /* The number of bytes left in this word. */
- int n;
-
- finish_unwind_opcodes ();
-
- /* Remember the current text section. */
- unwind.saved_seg = now_seg;
- unwind.saved_subseg = now_subseg;
-
- start_unwind_section (now_seg, 0);
-
- if (unwind.personality_routine == NULL)
- {
- if (unwind.personality_index == -2)
- {
- if (have_data)
- as_bad (_("handerdata in cantunwind frame"));
- return 1; /* EXIDX_CANTUNWIND. */
- }
-
- /* Use a default personality routine if none is specified. */
- if (unwind.personality_index == -1)
- {
- if (unwind.opcode_count > 3)
- unwind.personality_index = 1;
- else
- unwind.personality_index = 0;
- }
-
- /* Space for the personality routine entry. */
- if (unwind.personality_index == 0)
- {
- if (unwind.opcode_count > 3)
- as_bad (_("too many unwind opcodes for personality routine 0"));
-
- if (!have_data)
- {
- /* All the data is inline in the index table. */
- data = 0x80;
- n = 3;
- while (unwind.opcode_count > 0)
- {
- unwind.opcode_count--;
- data = (data << 8) | unwind.opcodes[unwind.opcode_count];
- n--;
- }
-
- /* Pad with "finish" opcodes. */
- while (n--)
- data = (data << 8) | 0xb0;
-
- return data;
- }
- size = 0;
- }
- else
- /* We get two opcodes "free" in the first word. */
- size = unwind.opcode_count - 2;
- }
- else
- /* An extra byte is required for the opcode count. */
- size = unwind.opcode_count + 1;
-
- size = (size + 3) >> 2;
- if (size > 0xff)
- as_bad (_("too many unwind opcodes"));
-
- frag_align (2, 0, 0);
- record_alignment (now_seg, 2);
- unwind.table_entry = expr_build_dot ();
-
- /* Allocate the table entry. */
- ptr = frag_more ((size << 2) + 4);
- where = frag_now_fix () - ((size << 2) + 4);
-
- switch (unwind.personality_index)
- {
- case -1:
- /* ??? Should this be a PLT generating relocation? */
- /* Custom personality routine. */
- fix_new (frag_now, where, 4, unwind.personality_routine, 0, 1,
- BFD_RELOC_ARM_PREL31);
-
- where += 4;
- ptr += 4;
-
- /* Set the first byte to the number of additional words. */
- data = size - 1;
- n = 3;
- break;
-
- /* ABI defined personality routines. */
- case 0:
- /* Three opcodes bytes are packed into the first word. */
- data = 0x80;
- n = 3;
- break;
-
- case 1:
- case 2:
- /* The size and first two opcode bytes go in the first word. */
- data = ((0x80 + unwind.personality_index) << 8) | size;
- n = 2;
- break;
-
- default:
- /* Should never happen. */
- abort ();
- }
-
- /* Pack the opcodes into words (MSB first), reversing the list at the same
- time. */
- while (unwind.opcode_count > 0)
- {
- if (n == 0)
- {
- md_number_to_chars (ptr, data, 4);
- ptr += 4;
- n = 4;
- data = 0;
- }
- unwind.opcode_count--;
- n--;
- data = (data << 8) | unwind.opcodes[unwind.opcode_count];
- }
-
- /* Finish off the last word. */
- if (n < 4)
- {
- /* Pad with "finish" opcodes. */
- while (n--)
- data = (data << 8) | 0xb0;
-
- md_number_to_chars (ptr, data, 4);
- }
-
- if (!have_data)
- {
- /* Add an empty descriptor if there is no user-specified data. */
- ptr = frag_more (4);
- md_number_to_chars (ptr, 0, 4);
- }
-
- return 0;
-}
-
-
-/* Parse an unwind_fnstart directive. Simply records the current location. */
-
-static void
-s_arm_unwind_fnstart (int ignored ATTRIBUTE_UNUSED)
-{
- demand_empty_rest_of_line ();
- /* Mark the start of the function. */
- unwind.proc_start = expr_build_dot ();
-
- /* Reset the rest of the unwind info. */
- unwind.opcode_count = 0;
- unwind.table_entry = NULL;
- unwind.personality_routine = NULL;
- unwind.personality_index = -1;
- unwind.frame_size = 0;
- unwind.fp_offset = 0;
- unwind.fp_reg = 13;
- unwind.fp_used = 0;
- unwind.sp_restored = 0;
-}
-
-
-/* Parse a handlerdata directive. Creates the exception handling table entry
- for the function. */
-
-static void
-s_arm_unwind_handlerdata (int ignored ATTRIBUTE_UNUSED)
-{
- demand_empty_rest_of_line ();
- if (unwind.table_entry)
- as_bad (_("dupicate .handlerdata directive"));
-
- create_unwind_entry (1);
-}
-
-/* Parse an unwind_fnend directive. Generates the index table entry. */
-
-static void
-s_arm_unwind_fnend (int ignored ATTRIBUTE_UNUSED)
-{
- long where;
- char *ptr;
- valueT val;
-
- demand_empty_rest_of_line ();
-
- /* Add eh table entry. */
- if (unwind.table_entry == NULL)
- val = create_unwind_entry (0);
- else
- val = 0;
-
- /* Add index table entry. This is two words. */
- start_unwind_section (unwind.saved_seg, 1);
- frag_align (2, 0, 0);
- record_alignment (now_seg, 2);
-
- ptr = frag_more (8);
- where = frag_now_fix () - 8;
-
- /* Self relative offset of the function start. */
- fix_new (frag_now, where, 4, unwind.proc_start, 0, 1,
- BFD_RELOC_ARM_PREL31);
-
- /* Indicate dependency on EHABI-defined personality routines to the
- linker, if it hasn't been done already. */
- if (unwind.personality_index >= 0 && unwind.personality_index < 3)
- {
- char *name[] = { "__aeabi_unwind_cpp_pr0",
- "__aeabi_unwind_cpp_pr1",
- "__aeabi_unwind_cpp_pr2" };
- if (!(marked_pr_dependency & (1 << unwind.personality_index)))
- {
- symbolS *pr = symbol_find_or_make (name[unwind.personality_index]);
- fix_new (frag_now, where, 0, pr, 0, 1, BFD_RELOC_NONE);
- marked_pr_dependency |= 1 << unwind.personality_index;
- seg_info (now_seg)->tc_segment_info_data.marked_pr_dependency
- = marked_pr_dependency;
- }
- }
-
- if (val)
- /* Inline exception table entry. */
- md_number_to_chars (ptr + 4, val, 4);
- else
- /* Self relative offset of the table entry. */
- fix_new (frag_now, where + 4, 4, unwind.table_entry, 0, 1,
- BFD_RELOC_ARM_PREL31);
-
- /* Restore the original section. */
- subseg_set (unwind.saved_seg, unwind.saved_subseg);
-}
-
-
-/* Parse an unwind_cantunwind directive. */
-
-static void
-s_arm_unwind_cantunwind (int ignored ATTRIBUTE_UNUSED)
-{
- demand_empty_rest_of_line ();
- if (unwind.personality_routine || unwind.personality_index != -1)
- as_bad (_("personality routine specified for cantunwind frame"));
-
- unwind.personality_index = -2;
-}
-
-
-/* Parse a personalityindex directive. */
-
-static void
-s_arm_unwind_personalityindex (int ignored ATTRIBUTE_UNUSED)
-{
- expressionS exp;
-
- if (unwind.personality_routine || unwind.personality_index != -1)
- as_bad (_("duplicate .personalityindex directive"));
-
- SKIP_WHITESPACE ();
-
- expression (&exp);
-
- if (exp.X_op != O_constant
- || exp.X_add_number < 0 || exp.X_add_number > 15)
- {
- as_bad (_("bad personality routine number"));
- ignore_rest_of_line ();
- return;
- }
-
- unwind.personality_index = exp.X_add_number;
-
- demand_empty_rest_of_line ();
-}
-
-
-/* Parse a personality directive. */
-
-static void
-s_arm_unwind_personality (int ignored ATTRIBUTE_UNUSED)
-{
- char *name, *p, c;
-
- if (unwind.personality_routine || unwind.personality_index != -1)
- as_bad (_("duplicate .personality directive"));
-
- SKIP_WHITESPACE ();
- name = input_line_pointer;
- c = get_symbol_end ();
- p = input_line_pointer;
- unwind.personality_routine = symbol_find_or_make (name);
- *p = c;
- SKIP_WHITESPACE ();
- demand_empty_rest_of_line ();
-}
-
-
-/* Parse a directive saving core registers. */
-
-static void
-s_arm_unwind_save_core (void)
-{
- valueT op;
- long range;
- int n;
-
- SKIP_WHITESPACE ();
- range = reg_list (&input_line_pointer);
- if (range == FAIL)
- {
- as_bad (_("expected register list"));
- ignore_rest_of_line ();
- return;
- }
-
- demand_empty_rest_of_line ();
-
- /* Turn .unwind_movsp ip followed by .unwind_save {..., ip, ...}
- into .unwind_save {..., sp...}. We aren't bothered about the value of
- ip because it is clobbered by calls. */
- if (unwind.sp_restored && unwind.fp_reg == 12
- && (range & 0x3000) == 0x1000)
- {
- unwind.opcode_count--;
- unwind.sp_restored = 0;
- range = (range | 0x2000) & ~0x1000;
- unwind.pending_offset = 0;
- }
-
- /* See if we can use the short opcodes. These pop a block of upto 8
- registers starting with r4, plus maybe r14. */
- for (n = 0; n < 8; n++)
- {
- /* Break at the first non-saved register. */
- if ((range & (1 << (n + 4))) == 0)
- break;
- }
- /* See if there are any other bits set. */
- if (n == 0 || (range & (0xfff0 << n) & 0xbff0) != 0)
- {
- /* Use the long form. */
- op = 0x8000 | ((range >> 4) & 0xfff);
- add_unwind_opcode (op, 2);
- }
- else
- {
- /* Use the short form. */
- if (range & 0x4000)
- op = 0xa8; /* Pop r14. */
- else
- op = 0xa0; /* Do not pop r14. */
- op |= (n - 1);
- add_unwind_opcode (op, 1);
- }
-
- /* Pop r0-r3. */
- if (range & 0xf)
- {
- op = 0xb100 | (range & 0xf);
- add_unwind_opcode (op, 2);
- }
-
- /* Record the number of bytes pushed. */
- for (n = 0; n < 16; n++)
- {
- if (range & (1 << n))
- unwind.frame_size += 4;
- }
-}
-
-
-/* Parse a directive saving FPA registers. */
-
-static void
-s_arm_unwind_save_fpa (int reg)
-{
- expressionS exp;
- int num_regs;
- valueT op;
-
- /* Get Number of registers to transfer. */
- if (skip_past_comma (&input_line_pointer) != FAIL)
- expression (&exp);
- else
- exp.X_op = O_illegal;
-
- if (exp.X_op != O_constant)
- {
- as_bad (_("expected , <constant>"));
- ignore_rest_of_line ();
- return;
- }
-
- num_regs = exp.X_add_number;
-
- if (num_regs < 1 || num_regs > 4)
- {
- as_bad (_("number of registers must be in the range [1:4]"));
- ignore_rest_of_line ();
- return;
- }
-
- demand_empty_rest_of_line ();
-
- if (reg == 4)
- {
- /* Short form. */
- op = 0xb4 | (num_regs - 1);
- add_unwind_opcode (op, 1);
- }
- else
- {
- /* Long form. */
- op = 0xc800 | (reg << 4) | (num_regs - 1);
- add_unwind_opcode (op, 2);
- }
- unwind.frame_size += num_regs * 12;
-}
-
-
-/* Parse a directive saving VFP registers. */
-
-static void
-s_arm_unwind_save_vfp (void)
-{
- int count;
- int reg;
- valueT op;
-
- count = vfp_parse_reg_list (&input_line_pointer, ®, 1);
- if (count == FAIL)
- {
- as_bad (_("expected register list"));
- ignore_rest_of_line ();
- return;
- }
-
- demand_empty_rest_of_line ();
-
- if (reg == 8)
- {
- /* Short form. */
- op = 0xb8 | (count - 1);
- add_unwind_opcode (op, 1);
- }
- else
- {
- /* Long form. */
- op = 0xb300 | (reg << 4) | (count - 1);
- add_unwind_opcode (op, 2);
- }
- unwind.frame_size += count * 8 + 4;
-}
-
-
-/* Parse a directive saving iWMMXt registers. */
-
-static void
-s_arm_unwind_save_wmmx (void)
-{
- int reg;
- int hi_reg;
- int i;
- unsigned wcg_mask;
- unsigned wr_mask;
- valueT op;
-
- if (*input_line_pointer == '{')
- input_line_pointer++;
-
- wcg_mask = 0;
- wr_mask = 0;
- do
- {
- reg = arm_reg_parse (&input_line_pointer,
- all_reg_maps[REG_TYPE_IWMMXT].htab);
-
- if (wr_register (reg))
- {
- i = reg & ~WR_PREFIX;
- if (wr_mask >> i)
- as_tsktsk (_("register list not in ascending order"));
- wr_mask |= 1 << i;
- }
- else if (wcg_register (reg))
- {
- i = (reg & ~WC_PREFIX) - 8;
- if (wcg_mask >> i)
- as_tsktsk (_("register list not in ascending order"));
- wcg_mask |= 1 << i;
- }
- else
- {
- as_bad (_("expected wr or wcgr"));
- goto error;
- }
-
- SKIP_WHITESPACE ();
- if (*input_line_pointer == '-')
- {
- hi_reg = arm_reg_parse (&input_line_pointer,
- all_reg_maps[REG_TYPE_IWMMXT].htab);
- if (wr_register (reg) && wr_register (hi_reg))
- {
- for (; reg < hi_reg; reg++)
- wr_mask |= 1 << (reg & ~WR_PREFIX);
- }
- else if (wcg_register (reg) && wcg_register (hi_reg))
- {
- for (; reg < hi_reg; reg++)
- wcg_mask |= 1 << ((reg & ~WC_PREFIX) - 8);
- }
- else
- {
- as_bad (_("bad register range"));
- goto error;
- }
- }
- }
- while (skip_past_comma (&input_line_pointer) != FAIL);
-
- SKIP_WHITESPACE ();
- if (*input_line_pointer == '}')
- input_line_pointer++;
-
- demand_empty_rest_of_line ();
-
- if (wr_mask && wcg_mask)
- {
- as_bad (_("inconsistent register types"));
- goto error;
- }
-
- /* Generate any deferred opcodes becuuse we're going to be looking at
- the list. */
- flush_pending_unwind ();
-
- if (wcg_mask)
- {
- for (i = 0; i < 16; i++)
- {
- if (wcg_mask & (1 << i))
- unwind.frame_size += 4;
- }
- op = 0xc700 | wcg_mask;
- add_unwind_opcode (op, 2);
- }
- else
- {
- for (i = 0; i < 16; i++)
- {
- if (wr_mask & (1 << i))
- unwind.frame_size += 8;
- }
- /* Attempt to combine with a previous opcode. We do this because gcc
- likes to output separate unwind directives for a single block of
- registers. */
- if (unwind.opcode_count > 0)
- {
- i = unwind.opcodes[unwind.opcode_count - 1];
- if ((i & 0xf8) == 0xc0)
- {
- i &= 7;
- /* Only merge if the blocks are contiguous. */
- if (i < 6)
- {
- if ((wr_mask & 0xfe00) == (1 << 9))
- {
- wr_mask |= ((1 << (i + 11)) - 1) & 0xfc00;
- unwind.opcode_count--;
- }
- }
- else if (i == 6 && unwind.opcode_count >= 2)
- {
- i = unwind.opcodes[unwind.opcode_count - 2];
- reg = i >> 4;
- i &= 0xf;
-
- op = 0xffff << (reg - 1);
- if (reg > 0
- || ((wr_mask & op) == (1u << (reg - 1))))
- {
- op = (1 << (reg + i + 1)) - 1;
- op &= ~((1 << reg) - 1);
- wr_mask |= op;
- unwind.opcode_count -= 2;
- }
- }
- }
- }
+ /* DON'T add any new processors to this list -- we want the whole list
+ to go away... Add them to the processors table instead. */
+ {"marm1", NULL, &legacy_cpu, ARM_ARCH_V1, N_("use -mcpu=arm1")},
+ {"m1", NULL, &legacy_cpu, ARM_ARCH_V1, N_("use -mcpu=arm1")},
+ {"marm2", NULL, &legacy_cpu, ARM_ARCH_V2, N_("use -mcpu=arm2")},
+ {"m2", NULL, &legacy_cpu, ARM_ARCH_V2, N_("use -mcpu=arm2")},
+ {"marm250", NULL, &legacy_cpu, ARM_ARCH_V2S, N_("use -mcpu=arm250")},
+ {"m250", NULL, &legacy_cpu, ARM_ARCH_V2S, N_("use -mcpu=arm250")},
+ {"marm3", NULL, &legacy_cpu, ARM_ARCH_V2S, N_("use -mcpu=arm3")},
+ {"m3", NULL, &legacy_cpu, ARM_ARCH_V2S, N_("use -mcpu=arm3")},
+ {"marm6", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm6")},
+ {"m6", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm6")},
+ {"marm600", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm600")},
+ {"m600", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm600")},
+ {"marm610", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm610")},
+ {"m610", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm610")},
+ {"marm620", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm620")},
+ {"m620", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm620")},
+ {"marm7", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7")},
+ {"m7", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7")},
+ {"marm70", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm70")},
+ {"m70", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm70")},
+ {"marm700", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm700")},
+ {"m700", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm700")},
+ {"marm700i", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm700i")},
+ {"m700i", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm700i")},
+ {"marm710", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm710")},
+ {"m710", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm710")},
+ {"marm710c", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm710c")},
+ {"m710c", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm710c")},
+ {"marm720", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm720")},
+ {"m720", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm720")},
+ {"marm7d", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7d")},
+ {"m7d", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7d")},
+ {"marm7di", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7di")},
+ {"m7di", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7di")},
+ {"marm7m", NULL, &legacy_cpu, ARM_ARCH_V3M, N_("use -mcpu=arm7m")},
+ {"m7m", NULL, &legacy_cpu, ARM_ARCH_V3M, N_("use -mcpu=arm7m")},
+ {"marm7dm", NULL, &legacy_cpu, ARM_ARCH_V3M, N_("use -mcpu=arm7dm")},
+ {"m7dm", NULL, &legacy_cpu, ARM_ARCH_V3M, N_("use -mcpu=arm7dm")},
+ {"marm7dmi", NULL, &legacy_cpu, ARM_ARCH_V3M, N_("use -mcpu=arm7dmi")},
+ {"m7dmi", NULL, &legacy_cpu, ARM_ARCH_V3M, N_("use -mcpu=arm7dmi")},
+ {"marm7100", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7100")},
+ {"m7100", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7100")},
+ {"marm7500", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7500")},
+ {"m7500", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7500")},
+ {"marm7500fe", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7500fe")},
+ {"m7500fe", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7500fe")},
+ {"marm7t", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm7tdmi")},
+ {"m7t", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm7tdmi")},
+ {"marm7tdmi", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm7tdmi")},
+ {"m7tdmi", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm7tdmi")},
+ {"marm710t", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm710t")},
+ {"m710t", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm710t")},
+ {"marm720t", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm720t")},
+ {"m720t", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm720t")},
+ {"marm740t", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm740t")},
+ {"m740t", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm740t")},
+ {"marm8", NULL, &legacy_cpu, ARM_ARCH_V4, N_("use -mcpu=arm8")},
+ {"m8", NULL, &legacy_cpu, ARM_ARCH_V4, N_("use -mcpu=arm8")},
+ {"marm810", NULL, &legacy_cpu, ARM_ARCH_V4, N_("use -mcpu=arm810")},
+ {"m810", NULL, &legacy_cpu, ARM_ARCH_V4, N_("use -mcpu=arm810")},
+ {"marm9", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm9")},
+ {"m9", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm9")},
+ {"marm9tdmi", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm9tdmi")},
+ {"m9tdmi", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm9tdmi")},
+ {"marm920", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm920")},
+ {"m920", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm920")},
+ {"marm940", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm940")},
+ {"m940", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm940")},
+ {"mstrongarm", NULL, &legacy_cpu, ARM_ARCH_V4, N_("use -mcpu=strongarm")},
+ {"mstrongarm110", NULL, &legacy_cpu, ARM_ARCH_V4,
+ N_("use -mcpu=strongarm110")},
+ {"mstrongarm1100", NULL, &legacy_cpu, ARM_ARCH_V4,
+ N_("use -mcpu=strongarm1100")},
+ {"mstrongarm1110", NULL, &legacy_cpu, ARM_ARCH_V4,
+ N_("use -mcpu=strongarm1110")},
+ {"mxscale", NULL, &legacy_cpu, ARM_ARCH_XSCALE, N_("use -mcpu=xscale")},
+ {"miwmmxt", NULL, &legacy_cpu, ARM_ARCH_IWMMXT, N_("use -mcpu=iwmmxt")},
+ {"mall", NULL, &legacy_cpu, ARM_ANY, N_("use -mcpu=all")},
- hi_reg = 15;
- /* We want to generate opcodes in the order the registers have been
- saved, ie. descending order. */
- for (reg = 15; reg >= -1; reg--)
- {
- /* Save registers in blocks. */
- if (reg < 0
- || !(wr_mask & (1 << reg)))
- {
- /* We found an unsaved reg. Generate opcodes to save the
- preceeding block. */
- if (reg != hi_reg)
- {
- if (reg == 9)
- {
- /* Short form. */
- op = 0xc0 | (hi_reg - 10);
- add_unwind_opcode (op, 1);
- }
- else
- {
- /* Long form. */
- op = 0xc600 | ((reg + 1) << 4) | ((hi_reg - reg) - 1);
- add_unwind_opcode (op, 2);
- }
- }
- hi_reg = reg - 1;
- }
- }
- }
- return;
-error:
- ignore_rest_of_line ();
-}
+ /* Architecture variants -- don't add any more to this list either. */
+ {"mv2", NULL, &legacy_cpu, ARM_ARCH_V2, N_("use -march=armv2")},
+ {"marmv2", NULL, &legacy_cpu, ARM_ARCH_V2, N_("use -march=armv2")},
+ {"mv2a", NULL, &legacy_cpu, ARM_ARCH_V2S, N_("use -march=armv2a")},
+ {"marmv2a", NULL, &legacy_cpu, ARM_ARCH_V2S, N_("use -march=armv2a")},
+ {"mv3", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -march=armv3")},
+ {"marmv3", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -march=armv3")},
+ {"mv3m", NULL, &legacy_cpu, ARM_ARCH_V3M, N_("use -march=armv3m")},
+ {"marmv3m", NULL, &legacy_cpu, ARM_ARCH_V3M, N_("use -march=armv3m")},
+ {"mv4", NULL, &legacy_cpu, ARM_ARCH_V4, N_("use -march=armv4")},
+ {"marmv4", NULL, &legacy_cpu, ARM_ARCH_V4, N_("use -march=armv4")},
+ {"mv4t", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -march=armv4t")},
+ {"marmv4t", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -march=armv4t")},
+ {"mv5", NULL, &legacy_cpu, ARM_ARCH_V5, N_("use -march=armv5")},
+ {"marmv5", NULL, &legacy_cpu, ARM_ARCH_V5, N_("use -march=armv5")},
+ {"mv5t", NULL, &legacy_cpu, ARM_ARCH_V5T, N_("use -march=armv5t")},
+ {"marmv5t", NULL, &legacy_cpu, ARM_ARCH_V5T, N_("use -march=armv5t")},
+ {"mv5e", NULL, &legacy_cpu, ARM_ARCH_V5TE, N_("use -march=armv5te")},
+ {"marmv5e", NULL, &legacy_cpu, ARM_ARCH_V5TE, N_("use -march=armv5te")},
+ /* Floating point variants -- don't add any more to this list either. */
+ {"mfpe-old", NULL, &legacy_fpu, FPU_ARCH_FPE, N_("use -mfpu=fpe")},
+ {"mfpa10", NULL, &legacy_fpu, FPU_ARCH_FPA, N_("use -mfpu=fpa10")},
+ {"mfpa11", NULL, &legacy_fpu, FPU_ARCH_FPA, N_("use -mfpu=fpa11")},
+ {"mno-fpu", NULL, &legacy_fpu, 0,
+ N_("use either -mfpu=softfpa or -mfpu=softvfp")},
-/* Parse an unwind_save directive. */
+ {NULL, NULL, NULL, 0, NULL}
+};
-static void
-s_arm_unwind_save (int ignored ATTRIBUTE_UNUSED)
+struct arm_cpu_option_table
{
- char *saved_ptr;
- int reg;
-
- /* Figure out what sort of save we have. */
- SKIP_WHITESPACE ();
- saved_ptr = input_line_pointer;
-
- reg = arm_reg_parse (&input_line_pointer, all_reg_maps[REG_TYPE_FN].htab);
- if (reg != FAIL)
- {
- s_arm_unwind_save_fpa (reg);
- return;
- }
-
- if (*input_line_pointer == '{')
- input_line_pointer++;
-
- SKIP_WHITESPACE ();
-
- reg = arm_reg_parse (&input_line_pointer, all_reg_maps[REG_TYPE_RN].htab);
- if (reg != FAIL)
- {
- input_line_pointer = saved_ptr;
- s_arm_unwind_save_core ();
- return;
- }
-
- reg = arm_reg_parse (&input_line_pointer, all_reg_maps[REG_TYPE_DN].htab);
- if (reg != FAIL)
- {
- input_line_pointer = saved_ptr;
- s_arm_unwind_save_vfp ();
- return;
- }
-
- reg = arm_reg_parse (&input_line_pointer,
- all_reg_maps[REG_TYPE_IWMMXT].htab);
- if (reg != FAIL)
- {
- input_line_pointer = saved_ptr;
- s_arm_unwind_save_wmmx ();
- return;
- }
-
- /* TODO: Maverick registers. */
- as_bad (_("unrecognised register"));
-}
-
+ char *name;
+ int value;
+ /* For some CPUs we assume an FPU unless the user explicitly sets
+ -mfpu=... */
+ int default_fpu;
+};
-/* Parse an unwind_movsp directive. */
+/* This list should, at a minimum, contain all the cpu names
+ recognized by GCC. */
+static struct arm_cpu_option_table arm_cpus[] =
+{
+ {"all", ARM_ANY, FPU_ARCH_FPA},
+ {"arm1", ARM_ARCH_V1, FPU_ARCH_FPA},
+ {"arm2", ARM_ARCH_V2, FPU_ARCH_FPA},
+ {"arm250", ARM_ARCH_V2S, FPU_ARCH_FPA},
+ {"arm3", ARM_ARCH_V2S, FPU_ARCH_FPA},
+ {"arm6", ARM_ARCH_V3, FPU_ARCH_FPA},
+ {"arm60", ARM_ARCH_V3, FPU_ARCH_FPA},
+ {"arm600", ARM_ARCH_V3, FPU_ARCH_FPA},
+ {"arm610", ARM_ARCH_V3, FPU_ARCH_FPA},
+ {"arm620", ARM_ARCH_V3, FPU_ARCH_FPA},
+ {"arm7", ARM_ARCH_V3, FPU_ARCH_FPA},
+ {"arm7m", ARM_ARCH_V3M, FPU_ARCH_FPA},
+ {"arm7d", ARM_ARCH_V3, FPU_ARCH_FPA},
+ {"arm7dm", ARM_ARCH_V3M, FPU_ARCH_FPA},
+ {"arm7di", ARM_ARCH_V3, FPU_ARCH_FPA},
+ {"arm7dmi", ARM_ARCH_V3M, FPU_ARCH_FPA},
+ {"arm70", ARM_ARCH_V3, FPU_ARCH_FPA},
+ {"arm700", ARM_ARCH_V3, FPU_ARCH_FPA},
+ {"arm700i", ARM_ARCH_V3, FPU_ARCH_FPA},
+ {"arm710", ARM_ARCH_V3, FPU_ARCH_FPA},
+ {"arm710t", ARM_ARCH_V4T, FPU_ARCH_FPA},
+ {"arm720", ARM_ARCH_V3, FPU_ARCH_FPA},
+ {"arm720t", ARM_ARCH_V4T, FPU_ARCH_FPA},
+ {"arm740t", ARM_ARCH_V4T, FPU_ARCH_FPA},
+ {"arm710c", ARM_ARCH_V3, FPU_ARCH_FPA},
+ {"arm7100", ARM_ARCH_V3, FPU_ARCH_FPA},
+ {"arm7500", ARM_ARCH_V3, FPU_ARCH_FPA},
+ {"arm7500fe", ARM_ARCH_V3, FPU_ARCH_FPA},
+ {"arm7t", ARM_ARCH_V4T, FPU_ARCH_FPA},
+ {"arm7tdmi", ARM_ARCH_V4T, FPU_ARCH_FPA},
+ {"arm7tdmi-s", ARM_ARCH_V4T, FPU_ARCH_FPA},
+ {"arm8", ARM_ARCH_V4, FPU_ARCH_FPA},
+ {"arm810", ARM_ARCH_V4, FPU_ARCH_FPA},
+ {"strongarm", ARM_ARCH_V4, FPU_ARCH_FPA},
+ {"strongarm1", ARM_ARCH_V4, FPU_ARCH_FPA},
+ {"strongarm110", ARM_ARCH_V4, FPU_ARCH_FPA},
+ {"strongarm1100", ARM_ARCH_V4, FPU_ARCH_FPA},
+ {"strongarm1110", ARM_ARCH_V4, FPU_ARCH_FPA},
+ {"arm9", ARM_ARCH_V4T, FPU_ARCH_FPA},
+ {"arm920", ARM_ARCH_V4T, FPU_ARCH_FPA},
+ {"arm920t", ARM_ARCH_V4T, FPU_ARCH_FPA},
+ {"arm922t", ARM_ARCH_V4T, FPU_ARCH_FPA},
+ {"arm940t", ARM_ARCH_V4T, FPU_ARCH_FPA},
+ {"arm9tdmi", ARM_ARCH_V4T, FPU_ARCH_FPA},
+ /* For V5 or later processors we default to using VFP; but the user
+ should really set the FPU type explicitly. */
+ {"arm9e-r0", ARM_ARCH_V5TExP, FPU_ARCH_VFP_V2},
+ {"arm9e", ARM_ARCH_V5TE, FPU_ARCH_VFP_V2},
+ {"arm926ej", ARM_ARCH_V5TEJ, FPU_ARCH_VFP_V2},
+ {"arm926ejs", ARM_ARCH_V5TEJ, FPU_ARCH_VFP_V2},
+ {"arm926ej-s", ARM_ARCH_V5TEJ, FPU_ARCH_VFP_V2},
+ {"arm946e-r0", ARM_ARCH_V5TExP, FPU_ARCH_VFP_V2},
+ {"arm946e", ARM_ARCH_V5TE, FPU_ARCH_VFP_V2},
+ {"arm966e-r0", ARM_ARCH_V5TExP, FPU_ARCH_VFP_V2},
+ {"arm966e", ARM_ARCH_V5TE, FPU_ARCH_VFP_V2},
+ {"arm10t", ARM_ARCH_V5T, FPU_ARCH_VFP_V1},
+ {"arm10e", ARM_ARCH_V5TE, FPU_ARCH_VFP_V2},
+ {"arm1020", ARM_ARCH_V5TE, FPU_ARCH_VFP_V2},
+ {"arm1020t", ARM_ARCH_V5T, FPU_ARCH_VFP_V1},
+ {"arm1020e", ARM_ARCH_V5TE, FPU_ARCH_VFP_V2},
+ {"arm1026ejs", ARM_ARCH_V5TEJ, FPU_ARCH_VFP_V2},
+ {"arm1026ej-s", ARM_ARCH_V5TEJ, FPU_ARCH_VFP_V2},
+ {"arm1136js", ARM_ARCH_V6, FPU_NONE},
+ {"arm1136j-s", ARM_ARCH_V6, FPU_NONE},
+ {"arm1136jfs", ARM_ARCH_V6, FPU_ARCH_VFP_V2},
+ {"arm1136jf-s", ARM_ARCH_V6, FPU_ARCH_VFP_V2},
+ {"mpcore", ARM_ARCH_V6K, FPU_ARCH_VFP_V2},
+ {"mpcorenovfp", ARM_ARCH_V6K, FPU_NONE},
+ {"arm1176jz-s", ARM_ARCH_V6ZK, FPU_NONE},
+ {"arm1176jzf-s", ARM_ARCH_V6ZK, FPU_ARCH_VFP_V2},
+ /* ??? XSCALE is really an architecture. */
+ {"xscale", ARM_ARCH_XSCALE, FPU_ARCH_VFP_V2},
+ /* ??? iwmmxt is not a processor. */
+ {"iwmmxt", ARM_ARCH_IWMMXT, FPU_ARCH_VFP_V2},
+ {"i80200", ARM_ARCH_XSCALE, FPU_ARCH_VFP_V2},
+ /* Maverick */
+ {"ep9312", ARM_ARCH_V4T | ARM_CEXT_MAVERICK, FPU_ARCH_MAVERICK},
+ {NULL, 0, 0}
+};
-static void
-s_arm_unwind_movsp (int ignored ATTRIBUTE_UNUSED)
+struct arm_arch_option_table
{
- int reg;
- valueT op;
+ char *name;
+ int value;
+ int default_fpu;
+};
- SKIP_WHITESPACE ();
- reg = reg_required_here (&input_line_pointer, -1);
- if (reg == FAIL)
- {
- as_bad (_("ARM register expected"));
- ignore_rest_of_line ();
- return;
- }
+/* This list should, at a minimum, contain all the architecture names
+ recognized by GCC. */
+static struct arm_arch_option_table arm_archs[] =
+{
+ {"all", ARM_ANY, FPU_ARCH_FPA},
+ {"armv1", ARM_ARCH_V1, FPU_ARCH_FPA},
+ {"armv2", ARM_ARCH_V2, FPU_ARCH_FPA},
+ {"armv2a", ARM_ARCH_V2S, FPU_ARCH_FPA},
+ {"armv2s", ARM_ARCH_V2S, FPU_ARCH_FPA},
+ {"armv3", ARM_ARCH_V3, FPU_ARCH_FPA},
+ {"armv3m", ARM_ARCH_V3M, FPU_ARCH_FPA},
+ {"armv4", ARM_ARCH_V4, FPU_ARCH_FPA},
+ {"armv4xm", ARM_ARCH_V4xM, FPU_ARCH_FPA},
+ {"armv4t", ARM_ARCH_V4T, FPU_ARCH_FPA},
+ {"armv4txm", ARM_ARCH_V4TxM, FPU_ARCH_FPA},
+ {"armv5", ARM_ARCH_V5, FPU_ARCH_VFP},
+ {"armv5t", ARM_ARCH_V5T, FPU_ARCH_VFP},
+ {"armv5txm", ARM_ARCH_V5TxM, FPU_ARCH_VFP},
+ {"armv5te", ARM_ARCH_V5TE, FPU_ARCH_VFP},
+ {"armv5texp", ARM_ARCH_V5TExP, FPU_ARCH_VFP},
+ {"armv5tej", ARM_ARCH_V5TEJ, FPU_ARCH_VFP},
+ {"armv6", ARM_ARCH_V6, FPU_ARCH_VFP},
+ {"armv6j", ARM_ARCH_V6, FPU_ARCH_VFP},
+ {"armv6k", ARM_ARCH_V6K, FPU_ARCH_VFP},
+ {"armv6z", ARM_ARCH_V6Z, FPU_ARCH_VFP},
+ {"armv6zk", ARM_ARCH_V6ZK, FPU_ARCH_VFP},
+ {"armv6t2", ARM_ARCH_V6T2, FPU_ARCH_VFP},
+ {"armv6kt2", ARM_ARCH_V6KT2, FPU_ARCH_VFP},
+ {"armv6zt2", ARM_ARCH_V6ZT2, FPU_ARCH_VFP},
+ {"armv6zkt2", ARM_ARCH_V6ZKT2, FPU_ARCH_VFP},
+ {"xscale", ARM_ARCH_XSCALE, FPU_ARCH_VFP},
+ {"iwmmxt", ARM_ARCH_IWMMXT, FPU_ARCH_VFP},
+ {NULL, 0, 0}
+};
- if (reg == 13 || reg == 15)
- {
- as_bad (_("r%d not permitted in .unwind_movsp directive"), reg);
- ignore_rest_of_line ();
- return;
- }
+/* ISA extensions in the co-processor space. */
+struct arm_option_value_table
+{
+ char *name;
+ int value;
+};
- if (unwind.fp_reg != 13)
- as_bad (_("unexpected .unwind_movsp directive"));
+static struct arm_option_value_table arm_extensions[] =
+{
+ {"maverick", ARM_CEXT_MAVERICK},
+ {"xscale", ARM_CEXT_XSCALE},
+ {"iwmmxt", ARM_CEXT_IWMMXT},
+ {NULL, 0}
+};
- /* Generate opcode to restore the value. */
- op = 0x90 | reg;
- add_unwind_opcode (op, 1);
+/* This list should, at a minimum, contain all the fpu names
+ recognized by GCC. */
+static struct arm_option_value_table arm_fpus[] =
+{
+ {"softfpa", FPU_NONE},
+ {"fpe", FPU_ARCH_FPE},
+ {"fpe2", FPU_ARCH_FPE},
+ {"fpe3", FPU_ARCH_FPA}, /* Third release supports LFM/SFM. */
+ {"fpa", FPU_ARCH_FPA},
+ {"fpa10", FPU_ARCH_FPA},
+ {"fpa11", FPU_ARCH_FPA},
+ {"arm7500fe", FPU_ARCH_FPA},
+ {"softvfp", FPU_ARCH_VFP},
+ {"softvfp+vfp", FPU_ARCH_VFP_V2},
+ {"vfp", FPU_ARCH_VFP_V2},
+ {"vfp9", FPU_ARCH_VFP_V2},
+ {"vfp10", FPU_ARCH_VFP_V2},
+ {"vfp10-r0", FPU_ARCH_VFP_V1},
+ {"vfpxd", FPU_ARCH_VFP_V1xD},
+ {"arm1020t", FPU_ARCH_VFP_V1},
+ {"arm1020e", FPU_ARCH_VFP_V2},
+ {"arm1136jfs", FPU_ARCH_VFP_V2},
+ {"arm1136jf-s", FPU_ARCH_VFP_V2},
+ {"maverick", FPU_ARCH_MAVERICK},
+ {NULL, 0}
+};
- /* Record the information for later. */
- unwind.fp_reg = reg;
- unwind.fp_offset = unwind.frame_size;
- unwind.sp_restored = 1;
- demand_empty_rest_of_line ();
-}
+static struct arm_option_value_table arm_float_abis[] =
+{
+ {"hard", ARM_FLOAT_ABI_HARD},
+ {"softfp", ARM_FLOAT_ABI_SOFTFP},
+ {"soft", ARM_FLOAT_ABI_SOFT},
+ {NULL, 0}
+};
+#ifdef OBJ_ELF
+/* We only know how to output GNU and ver 4 (AAELF) formats. */
+static struct arm_option_value_table arm_eabis[] =
+{
+ {"gnu", EF_ARM_EABI_UNKNOWN},
+ {"4", EF_ARM_EABI_VER4},
+ {NULL, 0}
+};
+#endif
-/* Parse #<number>. */
+struct arm_long_option_table
+{
+ char * option; /* Substring to match. */
+ char * help; /* Help information. */
+ int (* func) (char * subopt); /* Function to decode sub-option. */
+ char * deprecated; /* If non-null, print this message. */
+};
static int
-require_hashconst (int * val)
+arm_parse_extension (char * str, int * opt_p)
{
- expressionS exp;
-
- SKIP_WHITESPACE ();
- if (*input_line_pointer == '#')
+ while (str != NULL && *str != 0)
{
- input_line_pointer++;
- expression (&exp);
- }
- else
- exp.X_op = O_illegal;
+ struct arm_option_value_table * opt;
+ char * ext;
+ int optlen;
- if (exp.X_op != O_constant)
- {
- as_bad (_("expected #constant"));
- ignore_rest_of_line ();
- return FAIL;
- }
- *val = exp.X_add_number;
- return SUCCESS;
-}
+ if (*str != '+')
+ {
+ as_bad (_("invalid architectural extension"));
+ return 0;
+ }
-/* Parse an unwind_pad directive. */
+ str++;
+ ext = strchr (str, '+');
-static void
-s_arm_unwind_pad (int ignored ATTRIBUTE_UNUSED)
-{
- int offset;
+ if (ext != NULL)
+ optlen = ext - str;
+ else
+ optlen = strlen (str);
- if (require_hashconst (&offset) == FAIL)
- return;
+ if (optlen == 0)
+ {
+ as_bad (_("missing architectural extension"));
+ return 0;
+ }
- if (offset & 3)
- {
- as_bad (_("stack increment must be multiple of 4"));
- ignore_rest_of_line ();
- return;
- }
+ for (opt = arm_extensions; opt->name != NULL; opt++)
+ if (strncmp (opt->name, str, optlen) == 0)
+ {
+ *opt_p |= opt->value;
+ break;
+ }
- /* Don't generate any opcodes, just record the details for later. */
- unwind.frame_size += offset;
- unwind.pending_offset += offset;
+ if (opt->name == NULL)
+ {
+ as_bad (_("unknown architectural extnsion `%s'"), str);
+ return 0;
+ }
- demand_empty_rest_of_line ();
-}
+ str = ext;
+ };
-/* Parse an unwind_setfp directive. */
+ return 1;
+}
-static void
-s_arm_unwind_setfp (int ignored ATTRIBUTE_UNUSED)
+static int
+arm_parse_cpu (char * str)
{
- int sp_reg;
- int fp_reg;
- int offset;
+ struct arm_cpu_option_table * opt;
+ char * ext = strchr (str, '+');
+ int optlen;
- fp_reg = reg_required_here (&input_line_pointer, -1);
- if (skip_past_comma (&input_line_pointer) == FAIL)
- sp_reg = FAIL;
+ if (ext != NULL)
+ optlen = ext - str;
else
- sp_reg = reg_required_here (&input_line_pointer, -1);
+ optlen = strlen (str);
- if (fp_reg == FAIL || sp_reg == FAIL)
+ if (optlen == 0)
{
- as_bad (_("expected <reg>, <reg>"));
- ignore_rest_of_line ();
- return;
+ as_bad (_("missing cpu name `%s'"), str);
+ return 0;
}
- /* Optonal constant. */
- if (skip_past_comma (&input_line_pointer) != FAIL)
- {
- if (require_hashconst (&offset) == FAIL)
- return;
- }
- else
- offset = 0;
+ for (opt = arm_cpus; opt->name != NULL; opt++)
+ if (strncmp (opt->name, str, optlen) == 0)
+ {
+ mcpu_cpu_opt = opt->value;
+ mcpu_fpu_opt = opt->default_fpu;
- demand_empty_rest_of_line ();
+ if (ext != NULL)
+ return arm_parse_extension (ext, &mcpu_cpu_opt);
- if (sp_reg != 13 && sp_reg != unwind.fp_reg)
- {
- as_bad (_("register must be either sp or set by a previous"
- "unwind_movsp directive"));
- return;
- }
+ return 1;
+ }
- /* Don't generate any opcodes, just record the information for later. */
- unwind.fp_reg = fp_reg;
- unwind.fp_used = 1;
- if (sp_reg == 13)
- unwind.fp_offset = unwind.frame_size - offset;
- else
- unwind.fp_offset -= offset;
+ as_bad (_("unknown cpu `%s'"), str);
+ return 0;
}
-/* Parse an unwind_raw directive. */
-
-static void
-s_arm_unwind_raw (int ignored ATTRIBUTE_UNUSED)
+static int
+arm_parse_arch (char * str)
{
- expressionS exp;
- /* This is an arbitary limit. */
- unsigned char op[16];
- int count;
+ struct arm_arch_option_table *opt;
+ char *ext = strchr (str, '+');
+ int optlen;
- SKIP_WHITESPACE ();
- expression (&exp);
- if (exp.X_op == O_constant
- && skip_past_comma (&input_line_pointer) != FAIL)
- {
- unwind.frame_size += exp.X_add_number;
- expression (&exp);
- }
+ if (ext != NULL)
+ optlen = ext - str;
else
- exp.X_op = O_illegal;
+ optlen = strlen (str);
- if (exp.X_op != O_constant)
+ if (optlen == 0)
{
- as_bad (_("expected <offset>, <opcode>"));
- ignore_rest_of_line ();
- return;
+ as_bad (_("missing architecture name `%s'"), str);
+ return 0;
}
- count = 0;
-
- /* Parse the opcode. */
- for (;;)
- {
- if (count >= 16)
- {
- as_bad (_("unwind opcode too long"));
- ignore_rest_of_line ();
- }
- if (exp.X_op != O_constant || exp.X_add_number & ~0xff)
- {
- as_bad (_("invalid unwind opcode"));
- ignore_rest_of_line ();
- return;
- }
- op[count++] = exp.X_add_number;
-
- /* Parse the next byte. */
- if (skip_past_comma (&input_line_pointer) == FAIL)
- break;
- expression (&exp);
- }
+ for (opt = arm_archs; opt->name != NULL; opt++)
+ if (streq (opt->name, str))
+ {
+ march_cpu_opt = opt->value;
+ march_fpu_opt = opt->default_fpu;
- /* Add the opcode bytes in reverse order. */
- while (count--)
- add_unwind_opcode (op[count], 1);
+ if (ext != NULL)
+ return arm_parse_extension (ext, &march_cpu_opt);
- demand_empty_rest_of_line ();
+ return 1;
+ }
+
+ as_bad (_("unknown architecture `%s'\n"), str);
+ return 0;
}
-#endif /* OBJ_ELF */
+static int
+arm_parse_fpu (char * str)
+{
+ struct arm_option_value_table * opt;
-/* This is called from HANDLE_ALIGN in write.c. Fill in the contents
- of an rs_align_code fragment. */
+ for (opt = arm_fpus; opt->name != NULL; opt++)
+ if (streq (opt->name, str))
+ {
+ mfpu_opt = opt->value;
+ return 1;
+ }
-void
-arm_handle_align (fragS * fragP)
+ as_bad (_("unknown floating point format `%s'\n"), str);
+ return 0;
+}
+
+static int
+arm_parse_float_abi (char * str)
{
- static char const arm_noop[4] = { 0x00, 0x00, 0xa0, 0xe1 };
- static char const thumb_noop[2] = { 0xc0, 0x46 };
- static char const arm_bigend_noop[4] = { 0xe1, 0xa0, 0x00, 0x00 };
- static char const thumb_bigend_noop[2] = { 0x46, 0xc0 };
+ struct arm_option_value_table * opt;
- int bytes, fix, noop_size;
- char * p;
- const char * noop;
+ for (opt = arm_float_abis; opt->name != NULL; opt++)
+ if (streq (opt->name, str))
+ {
+ mfloat_abi_opt = opt->value;
+ return 1;
+ }
- if (fragP->fr_type != rs_align_code)
- return;
+ as_bad (_("unknown floating point abi `%s'\n"), str);
+ return 0;
+}
- bytes = fragP->fr_next->fr_address - fragP->fr_address - fragP->fr_fix;
- p = fragP->fr_literal + fragP->fr_fix;
- fix = 0;
+#ifdef OBJ_ELF
+static int
+arm_parse_eabi (char * str)
+{
+ struct arm_option_value_table *opt;
- if (bytes > MAX_MEM_FOR_RS_ALIGN_CODE)
- bytes &= MAX_MEM_FOR_RS_ALIGN_CODE;
+ for (opt = arm_eabis; opt->name != NULL; opt++)
+ if (streq (opt->name, str))
+ {
+ meabi_flags = opt->value;
+ return 1;
+ }
+ as_bad (_("unknown EABI `%s'\n"), str);
+ return 0;
+}
+#endif
- if (fragP->tc_frag_data)
- {
- if (target_big_endian)
- noop = thumb_bigend_noop;
- else
- noop = thumb_noop;
- noop_size = sizeof (thumb_noop);
- }
- else
- {
- if (target_big_endian)
- noop = arm_bigend_noop;
- else
- noop = arm_noop;
- noop_size = sizeof (arm_noop);
- }
+struct arm_long_option_table arm_long_opts[] =
+{
+ {"mcpu=", N_("<cpu name>\t assemble for CPU <cpu name>"),
+ arm_parse_cpu, NULL},
+ {"march=", N_("<arch name>\t assemble for architecture <arch name>"),
+ arm_parse_arch, NULL},
+ {"mfpu=", N_("<fpu name>\t assemble for FPU architecture <fpu name>"),
+ arm_parse_fpu, NULL},
+ {"mfloat-abi=", N_("<abi>\t assemble for floating point ABI <abi>"),
+ arm_parse_float_abi, NULL},
+#ifdef OBJ_ELF
+ {"meabi=", N_("<ver>\t assemble for eabi version <ver>"),
+ arm_parse_eabi, NULL},
+#endif
+ {NULL, NULL, 0, NULL}
+};
- if (bytes & (noop_size - 1))
- {
- fix = bytes & (noop_size - 1);
- memset (p, 0, fix);
- p += fix;
- bytes -= fix;
- }
+int
+md_parse_option (int c, char * arg)
+{
+ struct arm_option_table *opt;
+ struct arm_long_option_table *lopt;
- while (bytes >= noop_size)
+ switch (c)
{
- memcpy (p, noop, noop_size);
- p += noop_size;
- bytes -= noop_size;
- fix += noop_size;
- }
+#ifdef OPTION_EB
+ case OPTION_EB:
+ target_big_endian = 1;
+ break;
+#endif
- fragP->fr_fix += fix;
- fragP->fr_var = noop_size;
-}
+#ifdef OPTION_EL
+ case OPTION_EL:
+ target_big_endian = 0;
+ break;
+#endif
-/* Called from md_do_align. Used to create an alignment
- frag in a code section. */
+ case 'a':
+ /* Listing option. Just ignore these, we don't support additional
+ ones. */
+ return 0;
-void
-arm_frag_align_code (int n, int max)
-{
- char * p;
+ default:
+ for (opt = arm_opts; opt->option != NULL; opt++)
+ {
+ if (c == opt->option[0]
+ && ((arg == NULL && opt->option[1] == 0)
+ || streq (arg, opt->option + 1)))
+ {
+#if WARN_DEPRECATED
+ /* If the option is deprecated, tell the user. */
+ if (opt->deprecated != NULL)
+ as_tsktsk (_("option `-%c%s' is deprecated: %s"), c,
+ arg ? arg : "", _(opt->deprecated));
+#endif
- /* We assume that there will never be a requirement
- to support alignments greater than 32 bytes. */
- if (max > MAX_MEM_FOR_RS_ALIGN_CODE)
- as_fatal (_("alignments greater than 32 bytes not supported in .text sections."));
+ if (opt->var != NULL)
+ *opt->var = opt->value;
- p = frag_var (rs_align_code,
- MAX_MEM_FOR_RS_ALIGN_CODE,
- 1,
- (relax_substateT) max,
- (symbolS *) NULL,
- (offsetT) n,
- (char *) NULL);
- *p = 0;
-}
+ return 1;
+ }
+ }
-/* Perform target specific initialisation of a frag. */
+ for (lopt = arm_long_opts; lopt->option != NULL; lopt++)
+ {
+ /* These options are expected to have an argument. */
+ if (c == lopt->option[0]
+ && arg != NULL
+ && strncmp (arg, lopt->option + 1,
+ strlen (lopt->option + 1)) == 0)
+ {
+#if WARN_DEPRECATED
+ /* If the option is deprecated, tell the user. */
+ if (lopt->deprecated != NULL)
+ as_tsktsk (_("option `-%c%s' is deprecated: %s"), c, arg,
+ _(lopt->deprecated));
+#endif
-void
-arm_init_frag (fragS * fragP)
-{
- /* Record whether this frag is in an ARM or a THUMB area. */
- fragP->tc_frag_data = thumb_mode;
-}
+ /* Call the sup-option parser. */
+ return lopt->func (arg + strlen (lopt->option) - 1);
+ }
+ }
-#ifdef OBJ_ELF
+ return 0;
+ }
-/* Convert REGNAME to a DWARF-2 register number. */
+ return 1;
+}
-int
-tc_arm_regname_to_dw2regnum (const char *regname)
+void
+md_show_usage (FILE * fp)
{
- unsigned int i;
+ struct arm_option_table *opt;
+ struct arm_long_option_table *lopt;
- for (i = 0; rn_table[i].name; i++)
- if (streq (regname, rn_table[i].name))
- return rn_table[i].number;
+ fprintf (fp, _(" ARM-specific assembler options:\n"));
- return -1;
-}
+ for (opt = arm_opts; opt->option != NULL; opt++)
+ if (opt->help != NULL)
+ fprintf (fp, " -%-23s%s\n", opt->option, _(opt->help));
-/* Initialize the DWARF-2 unwind information for this procedure. */
+ for (lopt = arm_long_opts; lopt->option != NULL; lopt++)
+ if (lopt->help != NULL)
+ fprintf (fp, " -%s%s\n", lopt->option, _(lopt->help));
-void
-tc_arm_frame_initial_instructions (void)
-{
- cfi_add_CFA_def_cfa (REG_SP, 0);
-}
+#ifdef OPTION_EB
+ fprintf (fp, _("\
+ -EB assemble code for a big-endian cpu\n"));
#endif
-/* This table describes all the machine specific pseudo-ops the assembler
- has to support. The fields are:
- pseudo-op name without dot
- function to call to execute this pseudo-op
- Integer arg to pass to the function. */
-
-const pseudo_typeS md_pseudo_table[] =
-{
- /* Never called because '.req' does not start a line. */
- { "req", s_req, 0 },
- { "unreq", s_unreq, 0 },
- { "bss", s_bss, 0 },
- { "align", s_align, 0 },
- { "arm", s_arm, 0 },
- { "thumb", s_thumb, 0 },
- { "code", s_code, 0 },
- { "force_thumb", s_force_thumb, 0 },
- { "thumb_func", s_thumb_func, 0 },
- { "thumb_set", s_thumb_set, 0 },
- { "even", s_even, 0 },
- { "ltorg", s_ltorg, 0 },
- { "pool", s_ltorg, 0 },
-#ifdef OBJ_ELF
- { "word", s_arm_elf_cons, 4 },
- { "long", s_arm_elf_cons, 4 },
- { "rel31", s_arm_rel31, 0 },
- { "fnstart", s_arm_unwind_fnstart, 0 },
- { "fnend", s_arm_unwind_fnend, 0 },
- { "cantunwind", s_arm_unwind_cantunwind, 0 },
- { "personality", s_arm_unwind_personality, 0 },
- { "personalityindex", s_arm_unwind_personalityindex, 0 },
- { "handlerdata", s_arm_unwind_handlerdata, 0 },
- { "save", s_arm_unwind_save, 0 },
- { "movsp", s_arm_unwind_movsp, 0 },
- { "pad", s_arm_unwind_pad, 0 },
- { "setfp", s_arm_unwind_setfp, 0 },
- { "unwind_raw", s_arm_unwind_raw, 0 },
-#else
- { "word", cons, 4},
+#ifdef OPTION_EL
+ fprintf (fp, _("\
+ -EL assemble code for a little-endian cpu\n"));
#endif
- { "extend", float_cons, 'x' },
- { "ldouble", float_cons, 'x' },
- { "packed", float_cons, 'p' },
- { 0, 0, 0 }
-};
+}
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