/* Disassemble MSP430 instructions.
- Copyright (C) 2002 Free Software Foundation, Inc.
+ Copyright (C) 2002, 2004, 2005, 2007, 2009 Free Software Foundation, Inc.
Contributed by Dmitry Diky <diwil@mail.ru>
- This program is free software; you can redistribute it and/or modify
+ This file is part of the GNU opcodes library.
+
+ This library is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program 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
- GNU General Public License for more details.
-
+ the Free Software Foundation; either version 3, or (at your option)
+ any later version.
+
+ It 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 GNU General Public
+ License for more details.
+
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
#include <stdio.h>
#include <ctype.h>
#undef DASM_SECTION
-static unsigned short msp430dis_opcode
- PARAMS ((bfd_vma, disassemble_info *));
-int print_insn_msp430
- PARAMS ((bfd_vma, disassemble_info *));
-int msp430_nooperands
- PARAMS ((struct msp430_opcode_s *, bfd_vma, unsigned short, char *, int *));
-int msp430_singleoperand
- PARAMS ((disassemble_info *, struct msp430_opcode_s *, bfd_vma, unsigned short,
- char *, char *, int *));
-int msp430_doubleoperand
- PARAMS ((disassemble_info *, struct msp430_opcode_s *, bfd_vma, unsigned short,
- char *, char *, char *, char *, int *));
-int msp430_branchinstr
- PARAMS ((disassemble_info *, struct msp430_opcode_s *, bfd_vma, unsigned short,
- char *, char *, int *));
-
#define PS(x) (0xffff & (x))
static unsigned short
-msp430dis_opcode (addr, info)
- bfd_vma addr;
- disassemble_info *info;
+msp430dis_opcode (bfd_vma addr, disassemble_info *info)
{
bfd_byte buffer[2];
int status;
return bfd_getl16 (buffer);
}
-int
-print_insn_msp430 (addr, info)
- bfd_vma addr;
- disassemble_info *info;
-{
- void *stream = info->stream;
- fprintf_ftype prin = info->fprintf_func;
- struct msp430_opcode_s *opcode;
- char op1[32], op2[32], comm1[64], comm2[64];
- int cmd_len = 0;
- unsigned short insn;
- int cycles = 0;
- char *bc = "";
- char dinfo[32]; /* Debug purposes. */
-
- insn = msp430dis_opcode (addr, info);
- sprintf (dinfo, "0x%04x", insn);
-
- if (((int) addr & 0xffff) > 0xffdf)
- {
- (*prin) (stream, "interrupt service routine at 0x%04x", 0xffff & insn);
- return 2;
- }
-
- *comm1 = 0;
- *comm2 = 0;
-
- for (opcode = msp430_opcodes; opcode->name; opcode++)
- {
- if ((insn & opcode->bin_mask) == opcode->bin_opcode
- && opcode->bin_opcode != 0x9300)
- {
- *op1 = 0;
- *op2 = 0;
- *comm1 = 0;
- *comm2 = 0;
-
- /* r0 as destination. Ad should be zero. */
- if (opcode->insn_opnumb == 3 && (insn & 0x000f) == 0
- && (0x0080 & insn) == 0)
- {
- cmd_len =
- msp430_branchinstr (info, opcode, addr, insn, op1, comm1,
- &cycles);
- if (cmd_len)
- break;
- }
-
- switch (opcode->insn_opnumb)
- {
- case 0:
- cmd_len = msp430_nooperands (opcode, addr, insn, comm1, &cycles);
- break;
- case 2:
- cmd_len =
- msp430_doubleoperand (info, opcode, addr, insn, op1, op2,
- comm1, comm2, &cycles);
- if (insn & BYTE_OPERATION)
- bc = ".b";
- break;
- case 1:
- cmd_len =
- msp430_singleoperand (info, opcode, addr, insn, op1, comm1,
- &cycles);
- if (insn & BYTE_OPERATION && opcode->fmt != 3)
- bc = ".b";
- break;
- default:
- break;
- }
- }
-
- if (cmd_len)
- break;
- }
-
- dinfo[5] = 0;
-
- if (cmd_len < 1)
- {
- /* Unknown opcode, or invalid combination of operands. */
- (*prin) (stream, ".word 0x%04x; ????", PS (insn));
- return 2;
- }
-
- (*prin) (stream, "%s%s", opcode->name, bc);
-
- if (*op1)
- (*prin) (stream, "\t%s", op1);
- if (*op2)
- (*prin) (stream, ",");
-
- if (strlen (op1) < 7)
- (*prin) (stream, "\t");
- if (!strlen (op1))
- (*prin) (stream, "\t");
-
- if (*op2)
- (*prin) (stream, "%s", op2);
- if (strlen (op2) < 8)
- (*prin) (stream, "\t");
-
- if (*comm1 || *comm2)
- (*prin) (stream, ";");
- else if (cycles)
- {
- if (*op2)
- (*prin) (stream, ";");
- else
- {
- if (strlen (op1) < 7)
- (*prin) (stream, ";");
- else
- (*prin) (stream, "\t;");
- }
- }
- if (*comm1)
- (*prin) (stream, "%s", comm1);
- if (*comm1 && *comm2)
- (*prin) (stream, ",");
- if (*comm2)
- (*prin) (stream, " %s", comm2);
- return cmd_len;
-}
-
-int
-msp430_nooperands (opcode, addr, insn, comm, cycles)
- struct msp430_opcode_s *opcode;
- bfd_vma addr ATTRIBUTE_UNUSED;
- unsigned short insn ATTRIBUTE_UNUSED;
- char *comm;
- int *cycles;
+static int
+msp430_nooperands (struct msp430_opcode_s *opcode,
+ bfd_vma addr ATTRIBUTE_UNUSED,
+ unsigned short insn ATTRIBUTE_UNUSED,
+ char *comm,
+ int *cycles)
{
/* Pop with constant. */
if (insn == 0x43b2)
return 2;
}
-
-int
-msp430_singleoperand (info, opcode, addr, insn, op, comm, cycles)
- disassemble_info *info;
- struct msp430_opcode_s *opcode;
- bfd_vma addr;
- unsigned short insn;
- char *op;
- char *comm;
- int *cycles;
+static int
+msp430_singleoperand (disassemble_info *info,
+ struct msp430_opcode_s *opcode,
+ bfd_vma addr,
+ unsigned short insn,
+ char *op,
+ char *comm,
+ int *cycles)
{
int regs = 0, regd = 0;
int ad = 0, as = 0;
else
sprintf (op, "r%d", regd);
}
- else /* ad == 1 msp430dis_opcode. */
+ else /* ad == 1 msp430dis_opcode. */
{
if (regd == 0)
{
break;
case 2: /* rrc, push, call, swpb, rra, sxt, push, call, reti etc... */
-
if (as == 0)
{
if (regd == 3)
return cmd_len;
}
-int
-msp430_doubleoperand (info, opcode, addr, insn, op1, op2, comm1, comm2, cycles)
- disassemble_info *info;
- struct msp430_opcode_s *opcode;
- bfd_vma addr;
- unsigned short insn;
- char *op1, *op2;
- char *comm1, *comm2;
- int *cycles;
+static int
+msp430_doubleoperand (disassemble_info *info,
+ struct msp430_opcode_s *opcode,
+ bfd_vma addr,
+ unsigned short insn,
+ char *op1,
+ char *op2,
+ char *comm1,
+ char *comm2,
+ int *cycles)
{
int regs = 0, regd = 0;
int ad = 0, as = 0;
/* Register mode. */
if (regd == 3)
{
- strcpy (comm1, "Illegal as emulation instr");
+ strcpy (comm1, _("Illegal as emulation instr"));
return -1;
}
{
/* Absolute. */
dst = msp430dis_opcode (addr + 2, info);
+ /* If the 'src' field is not the same as the dst
+ then this is not an rla instruction. */
+ if (dst != msp430dis_opcode (addr + 4, info))
+ return 0;
cmd_len += 4;
*cycles = 6;
sprintf (op1, "&0x%04x", PS (dst));
if (ad == 0 && regd == 3)
{
/* R2/R3 are illegal as dest: may be data section. */
- strcpy (comm1, "Illegal as 2-op instr");
+ strcpy (comm1, _("Illegal as 2-op instr"));
return -1;
}
else if (regs == 0)
{
*cycles = 3;
- /* Absolute. @pc+ */
+ /* Absolute. @pc+. */
dst = msp430dis_opcode (addr + 2, info);
cmd_len += 2;
sprintf (op1, "#%d", dst);
else
sprintf (op2, "r%d", regd);
}
- else /* ad == 1. */
+ else /* ad == 1. */
{
* cycles += 3;
return cmd_len;
}
-
-int
-msp430_branchinstr (info, opcode, addr, insn, op1, comm1, cycles)
- disassemble_info *info;
- struct msp430_opcode_s *opcode ATTRIBUTE_UNUSED;
- bfd_vma addr ATTRIBUTE_UNUSED;
- unsigned short insn;
- char *op1;
- char *comm1;
- int *cycles;
+static int
+msp430_branchinstr (disassemble_info *info,
+ struct msp430_opcode_s *opcode ATTRIBUTE_UNUSED,
+ bfd_vma addr ATTRIBUTE_UNUSED,
+ unsigned short insn,
+ char *op1,
+ char *comm1,
+ int *cycles)
{
int regs = 0, regd = 0;
int ad = 0, as = 0;
return cmd_len;
}
+
+int
+print_insn_msp430 (bfd_vma addr, disassemble_info *info)
+{
+ void *stream = info->stream;
+ fprintf_ftype prin = info->fprintf_func;
+ struct msp430_opcode_s *opcode;
+ char op1[32], op2[32], comm1[64], comm2[64];
+ int cmd_len = 0;
+ unsigned short insn;
+ int cycles = 0;
+ char *bc = "";
+ char dinfo[32]; /* Debug purposes. */
+
+ insn = msp430dis_opcode (addr, info);
+ sprintf (dinfo, "0x%04x", insn);
+
+ if (((int) addr & 0xffff) > 0xffdf)
+ {
+ (*prin) (stream, "interrupt service routine at 0x%04x", 0xffff & insn);
+ return 2;
+ }
+
+ *comm1 = 0;
+ *comm2 = 0;
+
+ for (opcode = msp430_opcodes; opcode->name; opcode++)
+ {
+ if ((insn & opcode->bin_mask) == opcode->bin_opcode
+ && opcode->bin_opcode != 0x9300)
+ {
+ *op1 = 0;
+ *op2 = 0;
+ *comm1 = 0;
+ *comm2 = 0;
+
+ /* r0 as destination. Ad should be zero. */
+ if (opcode->insn_opnumb == 3 && (insn & 0x000f) == 0
+ && (0x0080 & insn) == 0)
+ {
+ cmd_len =
+ msp430_branchinstr (info, opcode, addr, insn, op1, comm1,
+ &cycles);
+ if (cmd_len)
+ break;
+ }
+
+ switch (opcode->insn_opnumb)
+ {
+ case 0:
+ cmd_len = msp430_nooperands (opcode, addr, insn, comm1, &cycles);
+ break;
+ case 2:
+ cmd_len =
+ msp430_doubleoperand (info, opcode, addr, insn, op1, op2,
+ comm1, comm2, &cycles);
+ if (insn & BYTE_OPERATION)
+ bc = ".b";
+ break;
+ case 1:
+ cmd_len =
+ msp430_singleoperand (info, opcode, addr, insn, op1, comm1,
+ &cycles);
+ if (insn & BYTE_OPERATION && opcode->fmt != 3)
+ bc = ".b";
+ break;
+ default:
+ break;
+ }
+ }
+
+ if (cmd_len)
+ break;
+ }
+
+ dinfo[5] = 0;
+
+ if (cmd_len < 1)
+ {
+ /* Unknown opcode, or invalid combination of operands. */
+ (*prin) (stream, ".word 0x%04x; ????", PS (insn));
+ return 2;
+ }
+
+ (*prin) (stream, "%s%s", opcode->name, bc);
+
+ if (*op1)
+ (*prin) (stream, "\t%s", op1);
+ if (*op2)
+ (*prin) (stream, ",");
+
+ if (strlen (op1) < 7)
+ (*prin) (stream, "\t");
+ if (!strlen (op1))
+ (*prin) (stream, "\t");
+
+ if (*op2)
+ (*prin) (stream, "%s", op2);
+ if (strlen (op2) < 8)
+ (*prin) (stream, "\t");
+
+ if (*comm1 || *comm2)
+ (*prin) (stream, ";");
+ else if (cycles)
+ {
+ if (*op2)
+ (*prin) (stream, ";");
+ else
+ {
+ if (strlen (op1) < 7)
+ (*prin) (stream, ";");
+ else
+ (*prin) (stream, "\t;");
+ }
+ }
+ if (*comm1)
+ (*prin) (stream, "%s", comm1);
+ if (*comm1 && *comm2)
+ (*prin) (stream, ",");
+ if (*comm2)
+ (*prin) (stream, " %s", comm2);
+ return cmd_len;
+}
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