From 9a64fbe4d89751524be0954f87dd514083295e99 Mon Sep 17 00:00:00 2001 From: bellard Date: Sun, 4 Jan 2004 22:58:38 +0000 Subject: [PATCH] PowerPC system emulation (Jocelyn Mayer) - modified patch to use new TLB api git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@528 c046a42c-6fe2-441c-8c8c-71466251a162 --- target-ppc/cpu.h | 407 +++++---- target-ppc/exec.h | 181 ++-- target-ppc/helper.c | 1024 +++++++++++++++++---- target-ppc/hw.c | 935 ++++++++++++++++++++ target-ppc/op.c | 653 ++++++++------ target-ppc/op_helper.c | 445 ++++++++++ target-ppc/op_helper_mem.h | 44 + target-ppc/op_mem.h | 187 ++++ target-ppc/op_template.h | 33 +- target-ppc/translate.c | 2116 +++++++++++++++++++++++++++++--------------- 10 files changed, 4596 insertions(+), 1429 deletions(-) create mode 100644 target-ppc/hw.c create mode 100644 target-ppc/op_helper.c create mode 100644 target-ppc/op_helper_mem.h create mode 100644 target-ppc/op_mem.h diff --git a/target-ppc/cpu.h b/target-ppc/cpu.h index 53824896a4..bc3c46df62 100644 --- a/target-ppc/cpu.h +++ b/target-ppc/cpu.h @@ -25,6 +25,8 @@ #include "cpu-defs.h" +//#define USE_OPEN_FIRMWARE + /*** Sign extend constants ***/ /* 8 to 32 bits */ static inline int32_t s_ext8 (uint8_t value) @@ -54,56 +56,28 @@ static inline int32_t s_ext24 (uint32_t value) #include "config.h" #include -/* Floting point status and control register */ -#define FPSCR_FX 31 -#define FPSCR_FEX 30 -#define FPSCR_VX 29 -#define FPSCR_OX 28 -#define FPSCR_UX 27 -#define FPSCR_ZX 26 -#define FPSCR_XX 25 -#define FPSCR_VXSNAN 24 -#define FPSCR_VXISI 26 -#define FPSCR_VXIDI 25 -#define FPSCR_VXZDZ 21 -#define FPSCR_VXIMZ 20 +/* Instruction types */ +enum { + PPC_NONE = 0x0000, + PPC_INTEGER = 0x0001, /* CPU has integer operations instructions */ + PPC_FLOAT = 0x0002, /* CPU has floating point operations instructions */ + PPC_FLOW = 0x0004, /* CPU has flow control instructions */ + PPC_MEM = 0x0008, /* CPU has virtual memory instructions */ + PPC_RES = 0x0010, /* CPU has ld/st with reservation instructions */ + PPC_CACHE = 0x0020, /* CPU has cache control instructions */ + PPC_MISC = 0x0040, /* CPU has spr/msr access instructions */ + PPC_EXTERN = 0x0080, /* CPU has external control instructions */ + PPC_SEGMENT = 0x0100, /* CPU has memory segment instructions */ + PPC_CACHE_OPT= 0x0200, + PPC_FLOAT_OPT= 0x0400, + PPC_MEM_OPT = 0x0800, +}; -#define FPSCR_VXVC 18 -#define FPSCR_FR 17 -#define FPSCR_FI 16 -#define FPSCR_FPRF 11 -#define FPSCR_VXSOFT 9 -#define FPSCR_VXSQRT 8 -#define FPSCR_VXCVI 7 -#define FPSCR_OE 6 -#define FPSCR_UE 5 -#define FPSCR_ZE 4 -#define FPSCR_XE 3 -#define FPSCR_NI 2 -#define FPSCR_RN 0 -#define fpscr_fx env->fpscr[FPSCR_FX] -#define fpscr_fex env->fpscr[FPSCR_FEX] -#define fpscr_vx env->fpscr[FPSCR_VX] -#define fpscr_ox env->fpscr[FPSCR_OX] -#define fpscr_ux env->fpscr[FPSCR_UX] -#define fpscr_zx env->fpscr[FPSCR_ZX] -#define fpscr_xx env->fpscr[FPSCR_XX] -#define fpscr_vsxnan env->fpscr[FPSCR_VXSNAN] -#define fpscr_vxisi env->fpscr[FPSCR_VXISI] -#define fpscr_vxidi env->fpscr[FPSCR_VXIDI] -#define fpscr_vxzdz env->fpscr[FPSCR_VXZDZ] -#define fpscr_vximz env->fpscr[FPSCR_VXIMZ] -#define fpscr_fr env->fpscr[FPSCR_FR] -#define fpscr_fi env->fpscr[FPSCR_FI] -#define fpscr_fprf env->fpscr[FPSCR_FPRF] -#define fpscr_vxsoft env->fpscr[FPSCR_VXSOFT] -#define fpscr_vxsqrt env->fpscr[FPSCR_VXSQRT] -#define fpscr_oe env->fpscr[FPSCR_OE] -#define fpscr_ue env->fpscr[FPSCR_UE] -#define fpscr_ze env->fpscr[FPSCR_ZE] -#define fpscr_xe env->fpscr[FPSCR_XE] -#define fpscr_ni env->fpscr[FPSCR_NI] -#define fpscr_rn env->fpscr[FPSCR_RN] +#define PPC_COMMON (PPC_INTEGER | PPC_FLOAT | PPC_FLOW | PPC_MEM | \ + PPC_RES | PPC_CACHE | PPC_MISC | PPC_SEGMENT) +/* PPC 740/745/750/755 (aka G3) has external access instructions */ +#define PPC_750 (PPC_INTEGER | PPC_FLOAT | PPC_FLOW | PPC_MEM | \ + PPC_RES | PPC_CACHE | PPC_MISC | PPC_EXTERN | PPC_SEGMENT) /* Supervisor mode registers */ /* Machine state register */ @@ -139,26 +113,16 @@ static inline int32_t s_ext24 (uint32_t value) #define msr_le env->msr[MSR_LE] /* Segment registers */ -typedef struct ppc_sr_t { - uint32_t t:1; - uint32_t ks:1; - uint32_t kp:1; - uint32_t n:1; - uint32_t res:4; - uint32_t vsid:24; -} ppc_sr_t; - typedef struct CPUPPCState { /* general purpose registers */ uint32_t gpr[32]; /* floating point registers */ double fpr[32]; /* segment registers */ - ppc_sr_t sr[16]; - /* special purpose registers */ - uint32_t spr[1024]; + uint32_t sdr1; + uint32_t sr[16]; /* XER */ - uint8_t xer[32]; + uint8_t xer[4]; /* Reservation address */ uint32_t reserve; /* machine state register */ @@ -166,11 +130,20 @@ typedef struct CPUPPCState { /* condition register */ uint8_t crf[8]; /* floating point status and control register */ - uint8_t fpscr[32]; + uint8_t fpscr[8]; uint32_t nip; - /* CPU exception code */ - uint32_t exception; - + /* special purpose registers */ + uint32_t lr; + uint32_t ctr; + /* Time base */ + uint32_t tb[2]; + /* decrementer */ + uint32_t decr; + /* BATs */ + uint32_t DBAT[2][8]; + uint32_t IBAT[2][8]; + /* all others */ + uint32_t spr[1024]; /* qemu dedicated */ /* temporary float registers */ double ft0; @@ -180,9 +153,14 @@ typedef struct CPUPPCState { jmp_buf jmp_env; int exception_index; int error_code; + uint32_t exceptions; /* exception queue */ + uint32_t errors[16]; int user_mode_only; /* user mode only simulation */ struct TranslationBlock *current_tb; /* currently executing TB */ - + /* soft mmu support */ + /* 0 = kernel, 1 = user */ + CPUTLBEntry tlb_read[2][CPU_TLB_SIZE]; + CPUTLBEntry tlb_write[2][CPU_TLB_SIZE]; /* user data */ void *opaque; } CPUPPCState; @@ -198,107 +176,99 @@ int cpu_ppc_signal_handler(int host_signum, struct siginfo *info, void *puc); void cpu_ppc_dump_state(CPUPPCState *env, FILE *f, int flags); +void cpu_loop_exit(void); +void dump_stack (CPUPPCState *env); +uint32_t _load_xer (void); +void _store_xer (uint32_t value); +uint32_t _load_msr (void); +void _store_msr (uint32_t value); +void do_interrupt (CPUPPCState *env); #define TARGET_PAGE_BITS 12 #include "cpu-all.h" #define ugpr(n) (env->gpr[n]) -#define fpr(n) (env->fpr[n]) +#define fprd(n) (env->fpr[n]) +#define fprs(n) ((float)env->fpr[n]) +#define fpru(n) ((uint32_t)env->fpr[n]) +#define fpri(n) ((int32_t)env->fpr[n]) #define SPR_ENCODE(sprn) \ (((sprn) >> 5) | (((sprn) & 0x1F) << 5)) /* User mode SPR */ #define spr(n) env->spr[n] -//#define XER spr[1] -#define XER env->xer #define XER_SO 31 #define XER_OV 30 #define XER_CA 29 #define XER_BC 0 -#define xer_so env->xer[XER_SO] -#define xer_ov env->xer[XER_OV] -#define xer_ca env->xer[XER_CA] -#define xer_bc env->xer[XER_BC] +#define xer_so env->xer[3] +#define xer_ov env->xer[2] +#define xer_ca env->xer[1] +#define xer_bc env->xer[0] -#define LR spr[SPR_ENCODE(8)] -#define CTR spr[SPR_ENCODE(9)] +#define XER SPR_ENCODE(1) +#define LR SPR_ENCODE(8) +#define CTR SPR_ENCODE(9) /* VEA mode SPR */ -#define V_TBL spr[SPR_ENCODE(268)] -#define V_TBU spr[SPR_ENCODE(269)] +#define V_TBL SPR_ENCODE(268) +#define V_TBU SPR_ENCODE(269) /* supervisor mode SPR */ -#define DSISR spr[SPR_ENCODE(18)] -#define DAR spr[SPR_ENCODE(19)] -#define DEC spr[SPR_ENCODE(22)] -#define SDR1 spr[SPR_ENCODE(25)] -typedef struct ppc_sdr1_t { - uint32_t htaborg:16; - uint32_t res:7; - uint32_t htabmask:9; -} ppc_sdr1_t; -#define SRR0 spr[SPR_ENCODE(26)] -#define SRR0_MASK 0xFFFFFFFC -#define SRR1 spr[SPR_ENCODE(27)] -#define SPRG0 spr[SPR_ENCODE(272)] -#define SPRG1 spr[SPR_ENCODE(273)] -#define SPRG2 spr[SPR_ENCODE(274)] -#define SPRG3 spr[SPR_ENCODE(275)] -#define EAR spr[SPR_ENCODE(282)] -typedef struct ppc_ear_t { - uint32_t e:1; - uint32_t res:25; - uint32_t rid:6; -} ppc_ear_t; -#define TBL spr[SPR_ENCODE(284)] -#define TBU spr[SPR_ENCODE(285)] -#define PVR spr[SPR_ENCODE(287)] -typedef struct ppc_pvr_t { - uint32_t version:16; - uint32_t revision:16; -} ppc_pvr_t; -#define IBAT0U spr[SPR_ENCODE(528)] -#define IBAT0L spr[SPR_ENCODE(529)] -#define IBAT1U spr[SPR_ENCODE(530)] -#define IBAT1L spr[SPR_ENCODE(531)] -#define IBAT2U spr[SPR_ENCODE(532)] -#define IBAT2L spr[SPR_ENCODE(533)] -#define IBAT3U spr[SPR_ENCODE(534)] -#define IBAT3L spr[SPR_ENCODE(535)] -#define DBAT0U spr[SPR_ENCODE(536)] -#define DBAT0L spr[SPR_ENCODE(537)] -#define DBAT1U spr[SPR_ENCODE(538)] -#define DBAT1L spr[SPR_ENCODE(539)] -#define DBAT2U spr[SPR_ENCODE(540)] -#define DBAT2L spr[SPR_ENCODE(541)] -#define DBAT3U spr[SPR_ENCODE(542)] -#define DBAT3L spr[SPR_ENCODE(543)] -typedef struct ppc_ubat_t { - uint32_t bepi:15; - uint32_t res:4; - uint32_t bl:11; - uint32_t vs:1; - uint32_t vp:1; -} ppc_ubat_t; -typedef struct ppc_lbat_t { - uint32_t brpn:15; - uint32_t res0:10; - uint32_t w:1; - uint32_t i:1; - uint32_t m:1; - uint32_t g:1; - uint32_t res1:1; - uint32_t pp:2; -} ppc_lbat_t; -#define DABR spr[SPR_ENCODE(1013)] +#define DSISR SPR_ENCODE(18) +#define DAR SPR_ENCODE(19) +#define DECR SPR_ENCODE(22) +#define SDR1 SPR_ENCODE(25) +#define SRR0 SPR_ENCODE(26) +#define SRR1 SPR_ENCODE(27) +#define SPRG0 SPR_ENCODE(272) +#define SPRG1 SPR_ENCODE(273) +#define SPRG2 SPR_ENCODE(274) +#define SPRG3 SPR_ENCODE(275) +#define SPRG4 SPR_ENCODE(276) +#define SPRG5 SPR_ENCODE(277) +#define SPRG6 SPR_ENCODE(278) +#define SPRG7 SPR_ENCODE(279) +#define ASR SPR_ENCODE(280) +#define EAR SPR_ENCODE(282) +#define O_TBL SPR_ENCODE(284) +#define O_TBU SPR_ENCODE(285) +#define PVR SPR_ENCODE(287) +#define IBAT0U SPR_ENCODE(528) +#define IBAT0L SPR_ENCODE(529) +#define IBAT1U SPR_ENCODE(530) +#define IBAT1L SPR_ENCODE(531) +#define IBAT2U SPR_ENCODE(532) +#define IBAT2L SPR_ENCODE(533) +#define IBAT3U SPR_ENCODE(534) +#define IBAT3L SPR_ENCODE(535) +#define DBAT0U SPR_ENCODE(536) +#define DBAT0L SPR_ENCODE(537) +#define DBAT1U SPR_ENCODE(538) +#define DBAT1L SPR_ENCODE(539) +#define DBAT2U SPR_ENCODE(540) +#define DBAT2L SPR_ENCODE(541) +#define DBAT3U SPR_ENCODE(542) +#define DBAT3L SPR_ENCODE(543) +#define IBAT4U SPR_ENCODE(560) +#define IBAT4L SPR_ENCODE(561) +#define IBAT5U SPR_ENCODE(562) +#define IBAT5L SPR_ENCODE(563) +#define IBAT6U SPR_ENCODE(564) +#define IBAT6L SPR_ENCODE(565) +#define IBAT7U SPR_ENCODE(566) +#define IBAT7L SPR_ENCODE(567) +#define DBAT4U SPR_ENCODE(568) +#define DBAT4L SPR_ENCODE(569) +#define DBAT5U SPR_ENCODE(570) +#define DBAT5L SPR_ENCODE(571) +#define DBAT6U SPR_ENCODE(572) +#define DBAT6L SPR_ENCODE(573) +#define DBAT7U SPR_ENCODE(574) +#define DBAT7L SPR_ENCODE(575) +#define DABR SPR_ENCODE(1013) #define DABR_MASK 0xFFFFFFF8 -typedef struct ppc_dabr_t { - uint32_t dab:29; - uint32_t bt:1; - uint32_t dw:1; - uint32_t dr:1; -} ppc_dabr_t; -#define FPECR spr[SPR_ENCODE(1022)] -#define PIR spr[SPR_ENCODE(1023)] +#define FPECR SPR_ENCODE(1022) +#define PIR SPR_ENCODE(1023) #define TARGET_PAGE_BITS 12 #include "cpu-all.h" @@ -307,10 +277,30 @@ CPUPPCState *cpu_ppc_init(void); int cpu_ppc_exec(CPUPPCState *s); void cpu_ppc_close(CPUPPCState *s); void cpu_ppc_dump_state(CPUPPCState *env, FILE *f, int flags); +void PPC_init_hw (CPUPPCState *env, uint32_t mem_size, + uint32_t kernel_addr, uint32_t kernel_size, + uint32_t stack_addr, int boot_device); -/* Exeptions */ +/* Memory access type : + * may be needed for precise access rights control and precise exceptions. + */ enum { - EXCP_NONE = 0x00, + /* 1 bit to define user level / supervisor access */ + ACCESS_USER = 0x00, + ACCESS_SUPER = 0x01, + /* Type of instruction that generated the access */ + ACCESS_CODE = 0x10, /* Code fetch access */ + ACCESS_INT = 0x20, /* Integer load/store access */ + ACCESS_FLOAT = 0x30, /* floating point load/store access */ + ACCESS_RES = 0x40, /* load/store with reservation */ + ACCESS_EXT = 0x50, /* external access */ + ACCESS_CACHE = 0x60, /* Cache manipulation */ +}; + +/*****************************************************************************/ +/* Exceptions */ +enum { + EXCP_NONE = -1, /* PPC hardware exceptions : exception vector / 0x100 */ EXCP_RESET = 0x01, /* System reset */ EXCP_MACHINE_CHECK = 0x02, /* Machine check exception */ @@ -326,55 +316,80 @@ enum { EXCP_SYSCALL = 0x0C, /* System call */ EXCP_TRACE = 0x0D, /* Trace exception (optional) */ EXCP_FP_ASSIST = 0x0E, /* Floating-point assist (optional) */ -#if 0 - /* Exeption subtypes for EXCP_DSI */ - EXCP_DSI_TRANSLATE = 0x10301, /* Data address can't be translated */ - EXCP_DSI_NOTSUP = 0x10302, /* Access type not supported */ - EXCP_DSI_PROT = 0x10303, /* Memory protection violation */ - EXCP_DSI_EXTERNAL = 0x10304, /* External access disabled */ - EXCP_DSI_DABR = 0x10305, /* Data address breakpoint */ - /* Exeption subtypes for EXCP_ISI */ - EXCP_ISI_TRANSLATE = 0x10401, /* Code address can't be translated */ - EXCP_ISI_NOTSUP = 0x10402, /* Access type not supported */ - EXCP_ISI_PROT = 0x10403, /* Memory protection violation */ - EXCP_ISI_GUARD = 0x10404, /* Fetch into guarded memory */ - /* Exeption subtypes for EXCP_ALIGN */ - EXCP_ALIGN_FP = 0x10601, /* FP alignment exception */ - EXCP_ALIGN_LST = 0x10602, /* Unaligned memory load/store */ - EXCP_ALIGN_LE = 0x10603, /* Unaligned little-endian access */ - EXCP_ALIGN_PROT = 0x10604, /* Access cross protection boundary */ - EXCP_ALIGN_BAT = 0x10605, /* Access cross a BAT/seg boundary */ - EXCP_ALIGN_CACHE = 0x10606, /* Impossible dcbz access */ - /* Exeption subtypes for EXCP_PROGRAM */ + /* MPC740/745/750 & IBM 750 */ + EXCP_PERF = 0x0F, /* Performance monitor */ + EXCP_IABR = 0x13, /* Instruction address breakpoint */ + EXCP_SMI = 0x14, /* System management interrupt */ + EXCP_THRM = 0x15, /* Thermal management interrupt */ + /* MPC755 */ + EXCP_TLBMISS = 0x10, /* Instruction TLB miss */ + EXCP_TLBMISS_DL = 0x11, /* Data TLB miss for load */ + EXCP_TLBMISS_DS = 0x12, /* Data TLB miss for store */ + EXCP_PPC_MAX = 0x16, + /* Qemu exception */ + EXCP_OFCALL = 0x20, /* Call open-firmware emulator */ + EXCP_RTASCALL = 0x21, /* Call RTAS emulator */ + /* Special cases where we want to stop translation */ + EXCP_MTMSR = 0x104, /* mtmsr instruction: */ + /* may change privilege level */ + EXCP_BRANCH = 0x108, /* branch instruction */ + EXCP_RFI = 0x10C, /* return from interrupt */ + EXCP_SYSCALL_USER = 0x110, /* System call in user mode only */ +}; +/* Error codes */ +enum { + /* Exception subtypes for EXCP_DSI */ + EXCP_DSI_TRANSLATE = 0x01, /* Data address can't be translated */ + EXCP_DSI_NOTSUP = 0x02, /* Access type not supported */ + EXCP_DSI_PROT = 0x03, /* Memory protection violation */ + EXCP_DSI_EXTERNAL = 0x04, /* External access disabled */ + EXCP_DSI_DABR = 0x05, /* Data address breakpoint */ + /* flags for EXCP_DSI */ + EXCP_DSI_DIRECT = 0x10, + EXCP_DSI_STORE = 0x20, + EXCP_ECXW = 0x40, + /* Exception subtypes for EXCP_ISI */ + EXCP_ISI_TRANSLATE = 0x01, /* Code address can't be translated */ + EXCP_ISI_NOEXEC = 0x02, /* Try to fetch from a data segment */ + EXCP_ISI_GUARD = 0x03, /* Fetch from guarded memory */ + EXCP_ISI_PROT = 0x04, /* Memory protection violation */ + /* Exception subtypes for EXCP_ALIGN */ + EXCP_ALIGN_FP = 0x01, /* FP alignment exception */ + EXCP_ALIGN_LST = 0x02, /* Unaligned mult/extern load/store */ + EXCP_ALIGN_LE = 0x03, /* Multiple little-endian access */ + EXCP_ALIGN_PROT = 0x04, /* Access cross protection boundary */ + EXCP_ALIGN_BAT = 0x05, /* Access cross a BAT/seg boundary */ + EXCP_ALIGN_CACHE = 0x06, /* Impossible dcbz access */ + /* Exception subtypes for EXCP_PROGRAM */ /* FP exceptions */ - EXCP_FP_OX = 0x10701, /* FP overflow */ - EXCP_FP_UX = 0x10702, /* FP underflow */ - EXCP_FP_ZX = 0x10703, /* FP divide by zero */ - EXCP_FP_XX = 0x10704, /* FP inexact */ - EXCP_FP_VXNAN = 0x10705, /* FP invalid SNaN op */ - EXCP_FP_VXISI = 0x10706, /* FP invalid infinite substraction */ - EXCP_FP_VXIDI = 0x10707, /* FP invalid infinite divide */ - EXCP_FP_VXZDZ = 0x10708, /* FP invalid zero divide */ - EXCP_FP_VXIMZ = 0x10709, /* FP invalid infinite * zero */ - EXCP_FP_VXVC = 0x1070A, /* FP invalid compare */ - EXCP_FP_VXSOFT = 0x1070B, /* FP invalid operation */ - EXCP_FP_VXSQRT = 0x1070C, /* FP invalid square root */ - EXCP_FP_VXCVI = 0x1070D, /* FP invalid integer conversion */ + EXCP_FP = 0x10, + EXCP_FP_OX = 0x01, /* FP overflow */ + EXCP_FP_UX = 0x02, /* FP underflow */ + EXCP_FP_ZX = 0x03, /* FP divide by zero */ + EXCP_FP_XX = 0x04, /* FP inexact */ + EXCP_FP_VXNAN = 0x05, /* FP invalid SNaN op */ + EXCP_FP_VXISI = 0x06, /* FP invalid infinite substraction */ + EXCP_FP_VXIDI = 0x07, /* FP invalid infinite divide */ + EXCP_FP_VXZDZ = 0x08, /* FP invalid zero divide */ + EXCP_FP_VXIMZ = 0x09, /* FP invalid infinite * zero */ + EXCP_FP_VXVC = 0x0A, /* FP invalid compare */ + EXCP_FP_VXSOFT = 0x0B, /* FP invalid operation */ + EXCP_FP_VXSQRT = 0x0C, /* FP invalid square root */ + EXCP_FP_VXCVI = 0x0D, /* FP invalid integer conversion */ /* Invalid instruction */ - EXCP_INVAL_INVAL = 0x10711, /* Invalid instruction */ - EXCP_INVAL_LSWX = 0x10712, /* Invalid lswx instruction */ - EXCP_INVAL_SPR = 0x10713, /* Invalid SPR access */ - EXCP_INVAL_FP = 0x10714, /* Unimplemented mandatory fp instr */ -#endif - EXCP_INVAL = 0x70, /* Invalid instruction */ + EXCP_INVAL = 0x20, + EXCP_INVAL_INVAL = 0x01, /* Invalid instruction */ + EXCP_INVAL_LSWX = 0x02, /* Invalid lswx instruction */ + EXCP_INVAL_SPR = 0x03, /* Invalid SPR access */ + EXCP_INVAL_FP = 0x04, /* Unimplemented mandatory fp instr */ /* Privileged instruction */ - EXCP_PRIV = 0x71, /* Privileged instruction */ + EXCP_PRIV = 0x30, + EXCP_PRIV_OPC = 0x01, + EXCP_PRIV_REG = 0x02, /* Trap */ - EXCP_TRAP = 0x72, /* Trap */ - /* Special cases where we want to stop translation */ - EXCP_MTMSR = 0x103, /* mtmsr instruction: */ - /* may change privilege level */ - EXCP_BRANCH = 0x104, /* branch instruction */ + EXCP_TRAP = 0x40, }; +/*****************************************************************************/ + #endif /* !defined (__CPU_PPC_H__) */ diff --git a/target-ppc/exec.h b/target-ppc/exec.h index da1ebb765a..8a255ec6f1 100644 --- a/target-ppc/exec.h +++ b/target-ppc/exec.h @@ -41,126 +41,119 @@ register uint32_t T2 asm(AREG3); #include "cpu.h" #include "exec-all.h" -static inline uint8_t ld8 (uint32_t EA) +static inline uint32_t rotl (uint32_t i, int n) { - return *((uint8_t *)EA); + return ((i << n) | (i >> (32 - n))); } -static inline uint16_t ld16 (uint32_t EA) -{ - return __be16_to_cpu(*((uint16_t *)EA)); -} +/* XXX: move that to a generic header */ +#if !defined(CONFIG_USER_ONLY) -static inline uint16_t ld16r (uint32_t EA) -{ - return __le16_to_cpu(*((uint16_t *)EA)); -} +#define ldul_user ldl_user +#define ldul_kernel ldl_kernel -static inline uint32_t ld32 (uint32_t EA) -{ - return __be32_to_cpu(*((uint32_t *)EA)); -} - -static inline uint32_t ld32r (uint32_t EA) -{ - return __le32_to_cpu(*((uint32_t *)EA)); -} +#define ACCESS_TYPE 0 +#define MEMSUFFIX _kernel +#define DATA_SIZE 1 +#include "softmmu_header.h" -static inline uint64_t ld64 (uint32_t EA) -{ - return __be64_to_cpu(*((uint64_t *)EA)); -} +#define DATA_SIZE 2 +#include "softmmu_header.h" -static inline uint64_t ld64r (uint32_t EA) -{ - return __le64_to_cpu(*((uint64_t *)EA)); -} +#define DATA_SIZE 4 +#include "softmmu_header.h" -static inline void st8 (uint32_t EA, uint8_t data) -{ - *((uint8_t *)EA) = data; -} +#define DATA_SIZE 8 +#include "softmmu_header.h" +#undef ACCESS_TYPE +#undef MEMSUFFIX -static inline void st16 (uint32_t EA, uint16_t data) -{ - *((uint16_t *)EA) = __cpu_to_be16(data); -} +#define ACCESS_TYPE 1 +#define MEMSUFFIX _user +#define DATA_SIZE 1 +#include "softmmu_header.h" -static inline void st16r (uint32_t EA, uint16_t data) -{ - *((uint16_t *)EA) = __cpu_to_le16(data); -} +#define DATA_SIZE 2 +#include "softmmu_header.h" -static inline void st32 (uint32_t EA, uint32_t data) -{ - *((uint32_t *)EA) = __cpu_to_be32(data); -} +#define DATA_SIZE 4 +#include "softmmu_header.h" -static inline void st32r (uint32_t EA, uint32_t data) -{ - *((uint32_t *)EA) = __cpu_to_le32(data); -} +#define DATA_SIZE 8 +#include "softmmu_header.h" +#undef ACCESS_TYPE +#undef MEMSUFFIX -static inline void st64 (uint32_t EA, uint64_t data) -{ - *((uint64_t *)EA) = __cpu_to_be64(data); -} +/* these access are slower, they must be as rare as possible */ +#define ACCESS_TYPE 2 +#define MEMSUFFIX _data +#define DATA_SIZE 1 +#include "softmmu_header.h" -static inline void st64r (uint32_t EA, uint64_t data) -{ - *((uint64_t *)EA) = __cpu_to_le64(data); -} +#define DATA_SIZE 2 +#include "softmmu_header.h" -static inline void set_CRn(int n, uint8_t value) -{ - env->crf[n] = value; -} +#define DATA_SIZE 4 +#include "softmmu_header.h" -static inline void set_carry (void) -{ - xer_ca = 1; -} +#define DATA_SIZE 8 +#include "softmmu_header.h" +#undef ACCESS_TYPE +#undef MEMSUFFIX -static inline void reset_carry (void) -{ - xer_ca = 0; -} +#define ldub(p) ldub_data(p) +#define ldsb(p) ldsb_data(p) +#define lduw(p) lduw_data(p) +#define ldsw(p) ldsw_data(p) +#define ldl(p) ldl_data(p) +#define ldq(p) ldq_data(p) -static inline void set_overflow (void) -{ - xer_so = 1; - xer_ov = 1; -} +#define stb(p, v) stb_data(p, v) +#define stw(p, v) stw_data(p, v) +#define stl(p, v) stl_data(p, v) +#define stq(p, v) stq_data(p, v) -static inline void reset_overflow (void) -{ - xer_ov = 0; -} +#endif /* !defined(CONFIG_USER_ONLY) */ -static inline uint32_t rotl (uint32_t i, int n) -{ - return ((i << n) | (i >> (32 - n))); -} +int check_exception_state (CPUState *env); -void raise_exception (int exception_index); -void raise_exception_err (int exception_index, int error_code); +void do_queue_exception_err (uint32_t exception, int error_code); +void do_queue_exception (uint32_t exception); +void do_process_exceptions (void); +void do_check_exception_state (void); -uint32_t do_load_cr (void); -void do_store_cr (uint32_t crn, uint32_t value); -uint32_t do_load_xer (void); -void do_store_xer (uint32_t value); -uint32_t do_load_msr (void); -void do_store_msr (uint32_t msr_value); +void do_load_cr (void); +void do_store_cr (uint32_t mask); +void do_load_xer (void); +void do_store_xer (void); +void do_load_msr (void); +void do_store_msr (void); void do_load_fpscr (void); void do_store_fpscr (uint32_t mask); -int32_t do_sraw(int32_t Ta, uint32_t Tb); -void do_lmw (int reg, uint32_t src); -void do_stmw (int reg, uint32_t dest); -void do_lsw (uint32_t reg, int count, uint32_t src); -void do_stsw (uint32_t reg, int count, uint32_t dest); +void do_sraw(void); + +void do_fctiw (void); +void do_fctiwz (void); +void do_fsqrt (void); +void do_fsqrts (void); +void do_fres (void); +void do_fsqrte (void); +void do_fsel (void); +void do_fcmpu (void); +void do_fcmpo (void); +void do_fabs (void); +void do_fnabs (void); -void do_dcbz (void); void do_icbi (void); +void do_tlbia (void); +void do_tlbie (void); + +void dump_rfi (void); +void dump_store_sr (int srnum); +void dump_store_ibat (int ul, int nr); +void dump_store_dbat (int ul, int nr); +void dump_store_tb (int ul); +void dump_update_tb(uint32_t param); #endif /* !defined (__PPC_H__) */ diff --git a/target-ppc/helper.c b/target-ppc/helper.c index 4e9cc98e32..272dc95887 100644 --- a/target-ppc/helper.c +++ b/target-ppc/helper.c @@ -17,56 +17,642 @@ * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ +#include + #include "exec.h" +#if defined (USE_OPEN_FIRMWARE) +#include "of.h" +#endif + +//#define DEBUG_MMU +//#define DEBUG_BATS +//#define DEBUG_EXCEPTIONS + +extern FILE *logfile, *stderr; +void exit (int); +void abort (void); -extern FILE *logfile; +int phys_ram_size; +int phys_ram_fd; +uint8_t *phys_ram_base; void cpu_loop_exit(void) { longjmp(env->jmp_env, 1); } -/* shortcuts to generate exceptions */ -void raise_exception_err (int exception_index, int error_code) +void do_process_exceptions (void) { - env->exception_index = exception_index; - env->error_code = error_code; - cpu_loop_exit(); } -void raise_exception (int exception_index) +int check_exception_state (CPUState *env) { - env->exception_index = exception_index; - env->error_code = 0; + int i; - cpu_loop_exit(); + /* Process PPC exceptions */ + for (i = 1; i < EXCP_PPC_MAX; i++) { + if (env->exceptions & (1 << i)) { + switch (i) { + case EXCP_EXTERNAL: + case EXCP_DECR: + if (msr_ee == 0) + return 0; + break; + case EXCP_PROGRAM: + if (env->errors[EXCP_PROGRAM] == EXCP_FP && + msr_fe0 == 0 && msr_fe1 == 0) + return 0; + break; + default: + break; + } + env->exception_index = i; + env->error_code = env->errors[i]; + return 1; + } + } + + return 0; +} + +/*****************************************************************************/ +/* PPC MMU emulation */ +/* Perform BAT hit & translation */ +static int get_bat (CPUState *env, uint32_t *real, int *prot, + uint32_t virtual, int rw, int type) +{ + uint32_t *BATlt, *BATut, *BATu, *BATl; + uint32_t base, BEPIl, BEPIu, bl; + int i; + int ret = -1; + +#if defined (DEBUG_BATS) + if (loglevel > 0) { + fprintf(logfile, "%s: %cBAT v 0x%08x\n", __func__, + type == ACCESS_CODE ? 'I' : 'D', virtual); + } + printf("%s: %cBAT v 0x%08x\n", __func__, + type == ACCESS_CODE ? 'I' : 'D', virtual); +#endif + switch (type) { + case ACCESS_CODE: + BATlt = env->IBAT[1]; + BATut = env->IBAT[0]; + break; + default: + BATlt = env->DBAT[1]; + BATut = env->DBAT[0]; + break; + } +#if defined (DEBUG_BATS) + if (loglevel > 0) { + fprintf(logfile, "%s...: %cBAT v 0x%08x\n", __func__, + type == ACCESS_CODE ? 'I' : 'D', virtual); + } + printf("%s...: %cBAT v 0x%08x\n", __func__, + type == ACCESS_CODE ? 'I' : 'D', virtual); +#endif + base = virtual & 0xFFFC0000; + for (i = 0; i < 4; i++) { + BATu = &BATut[i]; + BATl = &BATlt[i]; + BEPIu = *BATu & 0xF0000000; + BEPIl = *BATu & 0x0FFE0000; + bl = (*BATu & 0x00001FFC) << 15; +#if defined (DEBUG_BATS) + if (loglevel > 0) { + fprintf(logfile, "%s: %cBAT%d v 0x%08x BATu 0x%08x BATl 0x%08x\n", + __func__, type == ACCESS_CODE ? 'I' : 'D', i, virtual, + *BATu, *BATl); + } else { + printf("%s: %cBAT%d v 0x%08x BATu 0x%08x BATl 0x%08x\n", + __func__, type == ACCESS_CODE ? 'I' : 'D', i, virtual, + *BATu, *BATl); + } +#endif + if ((virtual & 0xF0000000) == BEPIu && + ((virtual & 0x0FFE0000) & ~bl) == BEPIl) { + /* BAT matches */ + if ((msr_pr == 0 && (*BATu & 0x00000002)) || + (msr_pr == 1 && (*BATu & 0x00000001))) { + /* Get physical address */ + *real = (*BATl & 0xF0000000) | + ((virtual & 0x0FFE0000 & bl) | (*BATl & 0x0FFE0000)) | + (virtual & 0x0001FFFF); + if (*BATl & 0x00000001) + *prot = PROT_READ; + if (*BATl & 0x00000002) + *prot = PROT_WRITE | PROT_READ; +#if defined (DEBUG_BATS) + if (loglevel > 0) { + fprintf(logfile, "BAT %d match: r 0x%08x prot=%c%c\n", + i, *real, *prot & PROT_READ ? 'R' : '-', + *prot & PROT_WRITE ? 'W' : '-'); + } else { + printf("BAT %d match: 0x%08x => 0x%08x prot=%c%c\n", + i, virtual, *real, *prot & PROT_READ ? 'R' : '-', + *prot & PROT_WRITE ? 'W' : '-'); + } +#endif + ret = 0; + break; + } + } + } + if (ret < 0) { +#if defined (DEBUG_BATS) + printf("no BAT match for 0x%08x:\n", virtual); + for (i = 0; i < 4; i++) { + BATu = &BATut[i]; + BATl = &BATlt[i]; + BEPIu = *BATu & 0xF0000000; + BEPIl = *BATu & 0x0FFE0000; + bl = (*BATu & 0x00001FFC) << 15; + printf("%s: %cBAT%d v 0x%08x BATu 0x%08x BATl 0x%08x \n\t" + "0x%08x 0x%08x 0x%08x\n", + __func__, type == ACCESS_CODE ? 'I' : 'D', i, virtual, + *BATu, *BATl, BEPIu, BEPIl, bl); + } +#endif + env->spr[DAR] = virtual; + } + /* No hit */ + return ret; +} + +/* PTE table lookup */ +static int find_pte (uint32_t *RPN, int *prot, uint32_t base, uint32_t va, + int h, int key, int rw) +{ + uint32_t pte0, pte1, keep = 0; + int i, good = -1, store = 0; + int ret = -1; /* No entry found */ + + for (i = 0; i < 8; i++) { + pte0 = ldl_raw((void *)((uint32_t)phys_ram_base + base + (i * 8))); + pte1 = ldl_raw((void *)((uint32_t)phys_ram_base + base + (i * 8) + 4)); +#if defined (DEBUG_MMU) + printf("Load pte from 0x%08x => 0x%08x 0x%08x\n", base + (i * 8), + pte0, pte1); +#endif + /* Check validity and table match */ + if (pte0 & 0x80000000 && (h == ((pte0 >> 6) & 1))) { +#if defined (DEBUG_MMU) + printf("PTE is valid and table matches... compare 0x%08x:%08x\n", + pte0 & 0x7FFFFFBF, va); +#endif + /* Check vsid & api */ + if ((pte0 & 0x7FFFFFBF) == va) { +#if defined (DEBUG_MMU) + printf("PTE match !\n"); +#endif + if (good == -1) { + good = i; + keep = pte1; + } else { + /* All matches should have equal RPN, WIMG & PP */ + if ((keep & 0xFFFFF07B) != (pte1 & 0xFFFFF07B)) { + printf("Bad RPN/WIMG/PP\n"); + return -1; + } + } + /* Check access rights */ + if (key == 0) { + *prot = PROT_READ; + if ((pte1 & 0x00000003) != 0x3) + *prot |= PROT_WRITE; + } else { + switch (pte1 & 0x00000003) { + case 0x0: + *prot = 0; + break; + case 0x1: + case 0x3: + *prot = PROT_READ; + break; + case 0x2: + *prot = PROT_READ | PROT_WRITE; + break; + } + } + if ((rw == 0 && *prot != 0) || + (rw == 1 && (*prot & PROT_WRITE))) { +#if defined (DEBUG_MMU) + printf("PTE access granted !\n"); +#endif + good = i; + keep = pte1; + ret = 0; + } else if (ret == -1) { + ret = -2; /* Access right violation */ +#if defined (DEBUG_MMU) + printf("PTE access rejected\n"); +#endif + } + } + } + } + if (good != -1) { + *RPN = keep & 0xFFFFF000; +#if defined (DEBUG_MMU) + printf("found PTE at addr 0x%08x prot=0x%01x ret=%d\n", + *RPN, *prot, ret); +#endif + /* Update page flags */ + if (!(keep & 0x00000100)) { + keep |= 0x00000100; + store = 1; + } + if (rw) { + if (!(keep & 0x00000080)) { + keep |= 0x00000080; + store = 1; + } + } + if (store) + stl_raw((void *)(base + (good * 2) + 1), keep); + } + + return ret; } -/* Helpers for "fat" micro operations */ -uint32_t do_load_cr (void) +static inline uint32_t get_pgaddr (uint32_t sdr1, uint32_t hash, uint32_t mask) { - return (env->crf[0] << 28) | - (env->crf[1] << 24) | - (env->crf[2] << 20) | - (env->crf[3] << 16) | - (env->crf[4] << 12) | - (env->crf[5] << 8) | - (env->crf[6] << 4) | - (env->crf[7] << 0); + return (sdr1 & 0xFFFF0000) | (hash & mask); } -void do_store_cr (uint32_t crn, uint32_t value) +/* Perform segment based translation */ +static int get_segment (CPUState *env, uint32_t *real, int *prot, + uint32_t virtual, int rw, int type) { - int i, sh; + uint32_t pg_addr, sdr, ptem, vsid, pgidx; + uint32_t hash, mask; + uint32_t sr; + int key; + int ret = -1, ret2; - for (i = 0, sh = 7; i < 8; i++, sh --) { - if (crn & (1 << sh)) - env->crf[i] = (value >> (sh * 4)) & 0xF; + sr = env->sr[virtual >> 28]; +#if defined (DEBUG_MMU) + printf("Check segment v=0x%08x %d 0x%08x nip=0x%08x lr=0x%08x ir=%d dr=%d " + "pr=%d t=%d\n", virtual, virtual >> 28, sr, env->nip, + env->lr, msr_ir, msr_dr, msr_pr, type); +#endif + key = ((sr & 0x20000000) && msr_pr == 1) || + ((sr & 0x40000000) && msr_pr == 0) ? 1 : 0; + if ((sr & 0x80000000) == 0) { +#if defined (DEBUG_MMU) + printf("pte segment: key=%d n=0x%08x\n", key, sr & 0x10000000); +#endif + /* Check if instruction fetch is allowed, if needed */ + if (type != ACCESS_CODE || (sr & 0x10000000) == 0) { + /* Page address translation */ + vsid = sr & 0x00FFFFFF; + pgidx = (virtual >> 12) & 0xFFFF; + sdr = env->spr[SDR1]; + hash = ((vsid ^ pgidx) & 0x07FFFF) << 6; + mask = ((sdr & 0x000001FF) << 16) | 0xFFC0; + pg_addr = get_pgaddr(sdr, hash, mask); + ptem = (vsid << 7) | (pgidx >> 10); +#if defined (DEBUG_MMU) + printf("0 sdr1=0x%08x vsid=0x%06x api=0x%04x hash=0x%07x " + "pg_addr=0x%08x\n", sdr, vsid, pgidx, hash, pg_addr); +#endif + /* Primary table lookup */ + ret = find_pte(real, prot, pg_addr, ptem, 0, key, rw); + if (ret < 0) { + /* Secondary table lookup */ + hash = (~hash) & 0x01FFFFC0; + pg_addr = get_pgaddr(sdr, hash, mask); +#if defined (DEBUG_MMU) + printf("1 sdr1=0x%08x vsid=0x%06x api=0x%04x hash=0x%05x " + "pg_addr=0x%08x\n", sdr, vsid, pgidx, hash, pg_addr); +#endif + ret2 = find_pte(real, prot, pg_addr, ptem, 1, key, rw); + if (ret2 != -1) + ret = ret2; + } + if (ret != -1) + *real |= (virtual & 0x00000FFF); + if (ret == -2 && type == ACCESS_CODE && (sr & 0x10000000)) + ret = -3; + } else { +#if defined (DEBUG_MMU) + printf("No access allowed\n"); +#endif + } + } else { +#if defined (DEBUG_MMU) + printf("direct store...\n"); +#endif + /* Direct-store segment : absolutely *BUGGY* for now */ + switch (type) { + case ACCESS_INT: + /* Integer load/store : only access allowed */ + break; + case ACCESS_CODE: + /* No code fetch is allowed in direct-store areas */ + return -4; + case ACCESS_FLOAT: + /* Floating point load/store */ + return -4; + case ACCESS_RES: + /* lwarx, ldarx or srwcx. */ + return -4; + case ACCESS_CACHE: + /* dcba, dcbt, dcbtst, dcbf, dcbi, dcbst, dcbz, or icbi */ + /* Should make the instruction do no-op. + * As it already do no-op, it's quite easy :-) + */ + *real = virtual; + return 0; + case ACCESS_EXT: + /* eciwx or ecowx */ + return -4; + default: + if (logfile) { + fprintf(logfile, "ERROR: instruction should not need " + "address translation\n"); + } + printf("ERROR: instruction should not need " + "address translation\n"); + return -4; + } + if ((rw == 1 || key != 1) && (rw == 0 || key != 0)) { + *real = virtual; + ret = 2; + } else { + ret = -2; + } } + + return ret; } -uint32_t do_load_xer (void) +int get_physical_address (CPUState *env, uint32_t *physical, int *prot, + uint32_t address, int rw, int access_type) +{ + int ret; + + if (loglevel > 0) { + fprintf(logfile, "%s\n", __func__); + } + if ((access_type == ACCESS_CODE && msr_ir == 0) || msr_dr == 0) { + /* No address translation */ + *physical = address; + *prot = PROT_READ | PROT_WRITE; + ret = 0; + } else { + /* Try to find a BAT */ + ret = get_bat(env, physical, prot, address, rw, access_type); + if (ret < 0) { + /* We didn't match any BAT entry */ + ret = get_segment(env, physical, prot, address, rw, access_type); + } + } + + return ret; +} + + +#if !defined(CONFIG_USER_ONLY) + +#define MMUSUFFIX _mmu +#define GETPC() (__builtin_return_address(0)) + +#define SHIFT 0 +#include "softmmu_template.h" + +#define SHIFT 1 +#include "softmmu_template.h" + +#define SHIFT 2 +#include "softmmu_template.h" + +#define SHIFT 3 +#include "softmmu_template.h" + +/* try to fill the TLB and return an exception if error. If retaddr is + NULL, it means that the function was called in C code (i.e. not + from generated code or from helper.c) */ +/* XXX: fix it to restore all registers */ +void tlb_fill(unsigned long addr, int is_write, int flags, void *retaddr) +{ + TranslationBlock *tb; + int ret, is_user; + unsigned long pc; + CPUState *saved_env; + + /* XXX: hack to restore env in all cases, even if not called from + generated code */ + saved_env = env; + env = cpu_single_env; + is_user = flags & 0x01; + { + unsigned long tlb_addrr, tlb_addrw; + int index; + index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1); + tlb_addrr = env->tlb_read[is_user][index].address; + tlb_addrw = env->tlb_write[is_user][index].address; +#if 0 + printf("%s 1 %p %p idx=%d addr=0x%08lx tbl_addr=0x%08lx 0x%08lx " + "(0x%08lx 0x%08lx)\n", __func__, env, + &env->tlb_read[is_user][index], index, addr, + tlb_addrr, tlb_addrw, addr & TARGET_PAGE_MASK, + tlb_addrr & (TARGET_PAGE_MASK | TLB_INVALID_MASK)); +#endif + } + ret = cpu_handle_mmu_fault(env, addr, is_write, flags, 1); + if (ret) { + if (retaddr) { + /* now we have a real cpu fault */ + pc = (unsigned long)retaddr; + tb = tb_find_pc(pc); + if (tb) { + /* the PC is inside the translated code. It means that we have + a virtual CPU fault */ + cpu_restore_state(tb, env, pc); + } + } + do_queue_exception_err(env->exception_index, env->error_code); + do_process_exceptions(); + } + { + unsigned long tlb_addrr, tlb_addrw; + int index; + index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1); + tlb_addrr = env->tlb_read[is_user][index].address; + tlb_addrw = env->tlb_write[is_user][index].address; +#if 0 + printf("%s 2 %p %p idx=%d addr=0x%08lx tbl_addr=0x%08lx 0x%08lx " + "(0x%08lx 0x%08lx)\n", __func__, env, + &env->tlb_read[is_user][index], index, addr, + tlb_addrr, tlb_addrw, addr & TARGET_PAGE_MASK, + tlb_addrr & (TARGET_PAGE_MASK | TLB_INVALID_MASK)); +#endif + } + env = saved_env; +} + +void cpu_ppc_init_mmu(CPUPPCState *env) +{ + /* Nothing to do: all translation are disabled */ +} +#endif + +/* Perform address translation */ +int cpu_ppc_handle_mmu_fault (CPUState *env, uint32_t address, int rw, + int flags, int is_softmmu) +{ + uint32_t physical; + int prot; + int exception = 0, error_code = 0; + int is_user, access_type; + int ret = 0; + +// printf("%s 0\n", __func__); + is_user = flags & 0x01; + access_type = flags & ~0x01; + if (env->user_mode_only) { + /* user mode only emulation */ + ret = -1; + goto do_fault; + } + ret = get_physical_address(env, &physical, &prot, + address, rw, access_type); + if (ret == 0) { + ret = tlb_set_page(env, address, physical, prot, is_user, is_softmmu); + } else if (ret < 0) { + do_fault: +#if defined (DEBUG_MMU) + printf("%s 5\n", __func__); + printf("nip=0x%08x LR=0x%08x CTR=0x%08x MSR=0x%08x TBL=0x%08x\n", + env->nip, env->lr, env->ctr, /*msr*/0, env->tb[0]); + { + int i; + for (i = 0; i < 32; i++) { + if ((i & 7) == 0) + printf("GPR%02d:", i); + printf(" %08x", env->gpr[i]); + if ((i & 7) == 7) + printf("\n"); + } + printf("CR: 0x"); + for (i = 0; i < 8; i++) + printf("%01x", env->crf[i]); + printf(" ["); + for (i = 0; i < 8; i++) { + char a = '-'; + if (env->crf[i] & 0x08) + a = 'L'; + else if (env->crf[i] & 0x04) + a = 'G'; + else if (env->crf[i] & 0x02) + a = 'E'; + printf(" %c%c", a, env->crf[i] & 0x01 ? 'O' : ' '); + } + printf(" ] "); + } + printf("TB: 0x%08x %08x\n", env->tb[1], env->tb[0]); + printf("SRR0 0x%08x SRR1 0x%08x\n", env->spr[SRR0], env->spr[SRR1]); +#endif + if (access_type == ACCESS_CODE) { + exception = EXCP_ISI; + switch (ret) { + case -1: + /* No matches in page tables */ + error_code = EXCP_ISI_TRANSLATE; + break; + case -2: + /* Access rights violation */ + error_code = EXCP_ISI_PROT; + break; + case -3: + error_code = EXCP_ISI_NOEXEC; + break; + case -4: + /* Direct store exception */ + /* No code fetch is allowed in direct-store areas */ + exception = EXCP_ISI; + error_code = EXCP_ISI_NOEXEC; + break; + } + } else { + exception = EXCP_DSI; + switch (ret) { + case -1: + /* No matches in page tables */ + error_code = EXCP_DSI_TRANSLATE; + break; + case -2: + /* Access rights violation */ + error_code = EXCP_DSI_PROT; + break; + case -4: + /* Direct store exception */ + switch (access_type) { + case ACCESS_FLOAT: + /* Floating point load/store */ + exception = EXCP_ALIGN; + error_code = EXCP_ALIGN_FP; + break; + case ACCESS_RES: + /* lwarx, ldarx or srwcx. */ + exception = EXCP_DSI; + error_code = EXCP_DSI_NOTSUP | EXCP_DSI_DIRECT; + if (rw) + error_code |= EXCP_DSI_STORE; + break; + case ACCESS_EXT: + /* eciwx or ecowx */ + exception = EXCP_DSI; + error_code = EXCP_DSI_NOTSUP | EXCP_DSI_DIRECT | EXCP_ECXW; + break; + default: + exception = EXCP_PROGRAM; + error_code = EXCP_INVAL | EXCP_INVAL_INVAL; + break; + } + } + if (rw) + error_code |= EXCP_DSI_STORE; + /* Should find a better solution: + * this will be invalid for some exception if more than one + * exception occurs for one instruction + */ + env->spr[DSISR] = 0; + if (error_code & EXCP_DSI_DIRECT) { + env->spr[DSISR] |= 0x80000000; + if (access_type == ACCESS_EXT || + access_type == ACCESS_RES) + env->spr[DSISR] |= 0x04000000; + } + if ((error_code & 0xF) == EXCP_DSI_TRANSLATE) + env->spr[DSISR] |= 0x40000000; + if (error_code & EXCP_DSI_PROT) + env->spr[DSISR] |= 0x08000000; + if (error_code & EXCP_DSI_STORE) + env->spr[DSISR] |= 0x02000000; + if ((error_code & 0xF) == EXCP_DSI_DABR) + env->spr[DSISR] |= 0x00400000; + if (access_type == ACCESS_EXT) + env->spr[DSISR] |= 0x00100000; + } +#if 0 + printf("%s: set exception to %d %02x\n", + __func__, exception, error_code); +#endif + env->exception_index = exception; + env->error_code = error_code; + /* Store fault address */ + env->spr[DAR] = address; + ret = 1; + } + + return ret; +} + +uint32_t _load_xer (void) { return (xer_so << XER_SO) | (xer_ov << XER_OV) | @@ -74,7 +660,7 @@ uint32_t do_load_xer (void) (xer_bc << XER_BC); } -void do_store_xer (uint32_t value) +void _store_xer (uint32_t value) { xer_so = (value >> XER_SO) & 0x01; xer_ov = (value >> XER_OV) & 0x01; @@ -82,7 +668,7 @@ void do_store_xer (uint32_t value) xer_bc = (value >> XER_BC) & 0x1f; } -uint32_t do_load_msr (void) +uint32_t _load_msr (void) { return (msr_pow << MSR_POW) | (msr_ile << MSR_ILE) | @@ -101,167 +687,255 @@ uint32_t do_load_msr (void) (msr_le << MSR_LE); } -void do_store_msr (uint32_t msr_value) +void _store_msr (uint32_t value) { - msr_pow = (msr_value >> MSR_POW) & 0x03; - msr_ile = (msr_value >> MSR_ILE) & 0x01; - msr_ee = (msr_value >> MSR_EE) & 0x01; - msr_pr = (msr_value >> MSR_PR) & 0x01; - msr_fp = (msr_value >> MSR_FP) & 0x01; - msr_me = (msr_value >> MSR_ME) & 0x01; - msr_fe0 = (msr_value >> MSR_FE0) & 0x01; - msr_se = (msr_value >> MSR_SE) & 0x01; - msr_be = (msr_value >> MSR_BE) & 0x01; - msr_fe1 = (msr_value >> MSR_FE1) & 0x01; - msr_ip = (msr_value >> MSR_IP) & 0x01; - msr_ir = (msr_value >> MSR_IR) & 0x01; - msr_dr = (msr_value >> MSR_DR) & 0x01; - msr_ri = (msr_value >> MSR_RI) & 0x01; - msr_le = (msr_value >> MSR_LE) & 0x01; + msr_pow = (value >> MSR_POW) & 0x03; + msr_ile = (value >> MSR_ILE) & 0x01; + msr_ee = (value >> MSR_EE) & 0x01; + msr_pr = (value >> MSR_PR) & 0x01; + msr_fp = (value >> MSR_FP) & 0x01; + msr_me = (value >> MSR_ME) & 0x01; + msr_fe0 = (value >> MSR_FE0) & 0x01; + msr_se = (value >> MSR_SE) & 0x01; + msr_be = (value >> MSR_BE) & 0x01; + msr_fe1 = (value >> MSR_FE1) & 0x01; + msr_ip = (value >> MSR_IP) & 0x01; + msr_ir = (value >> MSR_IR) & 0x01; + msr_dr = (value >> MSR_DR) & 0x01; + msr_ri = (value >> MSR_RI) & 0x01; + msr_le = (value >> MSR_LE) & 0x01; } -/* The 32 MSB of the target fpr are undefined. They'll be zero... */ -/* Floating point operations helpers */ -void do_load_fpscr (void) +void do_interrupt (CPUState *env) { - /* The 32 MSB of the target fpr are undefined. - * They'll be zero... - */ - union { - double d; - struct { - uint32_t u[2]; - } s; - } u; - int i; - - u.s.u[0] = 0; - u.s.u[1] = 0; - for (i = 0; i < 8; i++) - u.s.u[1] |= env->fpscr[i] << (4 * i); - FT0 = u.d; -} +#if defined (CONFIG_USER_ONLY) + env->exception_index |= 0x100; +#else + uint32_t msr; + int excp = env->exception_index; -void do_store_fpscr (uint32_t mask) -{ - /* - * We use only the 32 LSB of the incoming fpr - */ - union { - double d; - struct { - uint32_t u[2]; - } s; - } u; + /* Dequeue PPC exceptions */ + if (excp < EXCP_PPC_MAX) + env->exceptions &= ~(1 << excp); + msr = _load_msr(); +#if defined (DEBUG_EXCEPTIONS) + if (excp != EXCP_DECR && excp == EXCP_PROGRAM && excp < EXCP_PPC_MAX) + { + if (loglevel > 0) { + fprintf(logfile, "Raise exception at 0x%08x => 0x%08x (%02x)\n", + env->nip, excp << 8, env->error_code); + } else { + printf("Raise exception at 0x%08x => 0x%08x (%02x)\n", + env->nip, excp << 8, env->error_code); + } + printf("nip=0x%08x LR=0x%08x CTR=0x%08x MSR=0x%08x DECR=0x%08x\n", + env->nip, env->lr, env->ctr, msr, env->decr); + { int i; - - u.d = FT0; - if (mask & 0x80) - env->fpscr[0] = (env->fpscr[0] & 0x9) | ((u.s.u[1] >> 28) & ~0x9); - for (i = 1; i < 7; i++) { - if (mask & (1 << (7 - i))) - env->fpscr[i] = (u.s.u[1] >> (4 * (7 - i))) & 0xF; + for (i = 0; i < 32; i++) { + if ((i & 7) == 0) + printf("GPR%02d:", i); + printf(" %08x", env->gpr[i]); + if ((i & 7) == 7) + printf("\n"); } - /* TODO: update FEX & VX */ - /* Set rounding mode */ - switch (env->fpscr[0] & 0x3) { - case 0: - /* Best approximation (round to nearest) */ - fesetround(FE_TONEAREST); - break; - case 1: - /* Smaller magnitude (round toward zero) */ - fesetround(FE_TOWARDZERO); - break; - case 2: - /* Round toward +infinite */ - fesetround(FE_UPWARD); - break; - case 3: - /* Round toward -infinite */ - fesetround(FE_DOWNWARD); - break; + printf("CR: 0x"); + for (i = 0; i < 8; i++) + printf("%01x", env->crf[i]); + printf(" ["); + for (i = 0; i < 8; i++) { + char a = '-'; + if (env->crf[i] & 0x08) + a = 'L'; + else if (env->crf[i] & 0x04) + a = 'G'; + else if (env->crf[i] & 0x02) + a = 'E'; + printf(" %c%c", a, env->crf[i] & 0x01 ? 'O' : ' '); } -} - -int32_t do_sraw(int32_t value, uint32_t shift) -{ - int32_t ret; - - xer_ca = 0; - if (shift & 0x20) { - ret = (-1) * ((uint32_t)value >> 31); - if (ret < 0) - xer_ca = 1; - } else { - ret = value >> (shift & 0x1f); - if (ret < 0 && (value & ((1 << shift) - 1)) != 0) - xer_ca = 1; + printf(" ] "); } - - return ret; -} - -void do_lmw (int reg, uint32_t src) -{ - for (; reg <= 31; reg++, src += 4) - ugpr(reg) = ld32(src); -} - -void do_stmw (int reg, uint32_t dest) -{ - for (; reg <= 31; reg++, dest += 4) - st32(dest, ugpr(reg)); -} - -void do_lsw (uint32_t reg, int count, uint32_t src) -{ - uint32_t tmp; - int sh; - - for (; count > 3; count -= 4, src += 4) { - ugpr(reg++) = ld32(src); - if (T2 == 32) - T2 = 0; + printf("TB: 0x%08x %08x\n", env->tb[1], env->tb[0]); + printf("XER 0x%08x SRR0 0x%08x SRR1 0x%08x\n", + _load_xer(), env->spr[SRR0], env->spr[SRR1]); } - if (count > 0) { - tmp = 0; - for (sh = 24; count > 0; count--, src++, sh -= 8) { - tmp |= ld8(src) << sh; +#endif + /* Generate informations in save/restore registers */ + switch (excp) { + case EXCP_OFCALL: +#if defined (USE_OPEN_FIRMWARE) + env->gpr[3] = OF_client_entry((void *)env->gpr[3]); +#endif + return; + case EXCP_RTASCALL: +#if defined (USE_OPEN_FIRMWARE) + printf("RTAS call !\n"); + env->gpr[3] = RTAS_entry((void *)env->gpr[3]); + printf("RTAS call done\n"); +#endif + return; + case EXCP_NONE: + /* Do nothing */ +#if defined (DEBUG_EXCEPTIONS) + printf("%s: escape EXCP_NONE\n", __func__); +#endif + return; + case EXCP_RESET: + if (msr_ip) + excp += 0xFFC00; + goto store_next; + case EXCP_MACHINE_CHECK: + if (msr_me == 0) { + printf("Machine check exception while not allowed !\n"); + if (loglevel) { + fprintf(logfile, + "Machine check exception while not allowed !\n"); } - ugpr(reg) = tmp; + abort(); } -} - -void do_stsw (uint32_t reg, int count, uint32_t dest) -{ - int sh; - - for (; count > 3; count -= 4, dest += 4) { - st32(dest, ugpr(reg++)); - if (reg == 32) - reg = 0; + msr_me = 0; + break; + case EXCP_DSI: + /* Store exception cause */ + /* data location address has been stored + * when the fault has been detected + */ + goto store_current; + case EXCP_ISI: + /* Store exception cause */ + if (env->error_code == EXCP_ISI_TRANSLATE) + msr |= 0x40000000; + else if (env->error_code == EXCP_ISI_NOEXEC || + env->error_code == EXCP_ISI_GUARD) + msr |= 0x10000000; + else + msr |= 0x08000000; + goto store_next; + case EXCP_EXTERNAL: + if (msr_ee == 0) { +#if defined (DEBUG_EXCEPTIONS) + if (loglevel > 0) { + fprintf(logfile, "Skipping hardware interrupt\n"); + } else { + printf("Skipping hardware interrupt\n"); } - if (count > 0) { - for (sh = 24; count > 0; count--, dest++, sh -= 8) { - st8(dest, (ugpr(reg) >> sh) & 0xFF); +#endif + return; } + goto store_next; + case EXCP_ALIGN: + /* Store exception cause */ + /* Get rS/rD and rA from faulting opcode */ + env->spr[DSISR] |= + (ldl_code((void *)(env->nip - 4)) & 0x03FF0000) >> 16; + /* data location address has been stored + * when the fault has been detected + */ + goto store_current; + case EXCP_PROGRAM: + msr &= ~0xFFFF0000; + switch (env->error_code & ~0xF) { + case EXCP_FP: + if (msr_fe0 == 0 && msr_fe1 == 0) { +#if defined (DEBUG_EXCEPTIONS) + printf("Ignore floating point exception\n"); +#endif + return; } -} - -void do_dcbz (void) -{ - int i; - - /* Assume cache line size is 32 */ - for (i = 0; i < 8; i++) { - st32(T0, 0); - T0 += 4; + msr |= 0x00100000; + /* Set FX */ + env->fpscr[7] |= 0x8; + /* Finally, update FEX */ + if ((((env->fpscr[7] & 0x3) << 3) | (env->fpscr[6] >> 1)) & + ((env->fpscr[1] << 1) | (env->fpscr[0] >> 3))) + env->fpscr[7] |= 0x4; + break; + case EXCP_INVAL: + msr |= 0x00080000; + break; + case EXCP_PRIV: + msr |= 0x00040000; + break; + case EXCP_TRAP: + msr |= 0x00020000; + break; + default: + /* Should never occur */ + break; } -} - -/* Instruction cache invalidation helper */ -void do_icbi (void) -{ - // tb_invalidate_page(T0); + msr |= 0x00010000; + goto store_current; + case EXCP_NO_FP: + goto store_current; + case EXCP_DECR: + if (msr_ee == 0) { + /* Requeue it */ + do_queue_exception(EXCP_DECR); + return; + } + goto store_next; + case EXCP_SYSCALL: +#if defined (DEBUG_EXCEPTIONS) + printf("syscall %d 0x%08x 0x%08x 0x%08x 0x%08x\n", + env->gpr[0], env->gpr[3], env->gpr[4], env->gpr[5], env->gpr[6]); +#endif + goto store_next; + case EXCP_TRACE: + goto store_next; + case EXCP_FP_ASSIST: + goto store_next; + case EXCP_MTMSR: + /* Nothing to do */ +#if defined (DEBUG_EXCEPTIONS) + printf("%s: escape EXCP_MTMSR\n", __func__); +#endif + return; + case EXCP_BRANCH: + /* Nothing to do */ +#if defined (DEBUG_EXCEPTIONS) + printf("%s: escape EXCP_BRANCH\n", __func__); +#endif + return; + case EXCP_RFI: + /* Restore user-mode state */ +#if defined (DEBUG_EXCEPTIONS) + printf("%s: escape EXCP_RFI\n", __func__); +#endif + return; + store_current: + /* SRR0 is set to current instruction */ + env->spr[SRR0] = (uint32_t)env->nip - 4; + break; + store_next: + /* SRR0 is set to next instruction */ + env->spr[SRR0] = (uint32_t)env->nip; + break; + } + env->spr[SRR1] = msr; + /* reload MSR with correct bits */ + msr_pow = 0; + msr_ee = 0; + msr_pr = 0; + msr_fp = 0; + msr_fe0 = 0; + msr_se = 0; + msr_be = 0; + msr_fe1 = 0; + msr_ir = 0; + msr_dr = 0; + msr_ri = 0; + msr_le = msr_ile; + /* Jump to handler */ + env->nip = excp << 8; + env->exception_index = EXCP_NONE; + /* Invalidate all TLB as we may have changed translation mode */ + do_tlbia(); + /* ensure that no TB jump will be modified as + the program flow was changed */ +#ifdef __sparc__ + tmp_T0 = 0; +#else + T0 = 0; +#endif +#endif } diff --git a/target-ppc/hw.c b/target-ppc/hw.c new file mode 100644 index 0000000000..090b610c31 --- /dev/null +++ b/target-ppc/hw.c @@ -0,0 +1,935 @@ +/* + * Hardware simulation for PPC target. + * For now, this is only a 'minimal' collection of hacks needed to boot Linux. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "cpu.h" +#include "vl.h" + +//#define HARD_DEBUG_PPC_IO +#define DEBUG_PPC_IO + +extern int loglevel; +extern FILE *logfile; + +#if defined (HARD_DEBUG_PPC_IO) && !defined (DEBUG_PPC_IO) +#define DEBUG_PPC_IO +#endif + +#if defined (HARD_DEBUG_PPC_IO) +#define PPC_IO_DPRINTF(fmt, args...) \ +do { \ + if (loglevel > 0) { \ + fprintf(logfile, "%s: " fmt, __func__ , ##args); \ + } else { \ + printf("%s : " fmt, __func__ , ##args); \ + } \ +} while (0) +#elif defined (DEBUG_PPC_IO) +#define PPC_IO_DPRINTF(fmt, args...) \ +do { \ + if (loglevel > 0) { \ + fprintf(logfile, "%s: " fmt, __func__ , ##args); \ + } \ +} while (0) +#else +#define PPC_IO_DPRINTF(fmt, args...) do { } while (0) +#endif + +#if defined (USE_OPEN_FIRMWARE) +#include "of.h" +#else +#define NVRAM_SIZE 0x2000 +#endif + +/* IO ports emulation */ +#define PPC_IO_BASE 0x80000000 + +static void PPC_io_writeb (uint32_t addr, uint32_t value) +{ + /* Don't polute serial port output */ + if ((addr < 0x800003F0 || addr > 0x80000400) && + (addr < 0x80000074 || addr > 0x80000077) && + (addr < 0x80000020 || addr > 0x80000021) && + (addr < 0x800000a0 || addr > 0x800000a1) && + (addr < 0x800001f0 || addr > 0x800001f7) && + (addr < 0x80000170 || addr > 0x80000177)) { + PPC_IO_DPRINTF("0x%08x => 0x%02x\n", addr - PPC_IO_BASE, value); + } + cpu_outb(NULL, addr - PPC_IO_BASE, value); +} + +static uint32_t PPC_io_readb (uint32_t addr) +{ + uint32_t ret = cpu_inb(NULL, addr - PPC_IO_BASE); + + if ((addr < 0x800003F0 || addr > 0x80000400) && + (addr < 0x80000074 || addr > 0x80000077) && + (addr < 0x80000020 || addr > 0x80000021) && + (addr < 0x800000a0 || addr > 0x800000a1) && + (addr < 0x800001f0 || addr > 0x800001f7) && + (addr < 0x80000170 || addr > 0x80000177) && + (addr < 0x8000060 || addr > 0x8000064)) { +// PPC_IO_DPRINTF("0x%08x <= 0x%02x\n", addr - PPC_IO_BASE, ret); + } + + return ret; +} + +static void PPC_io_writew (uint32_t addr, uint32_t value) +{ + if ((addr < 0x800001f0 || addr > 0x800001f7) && + (addr < 0x80000170 || addr > 0x80000177)) { + PPC_IO_DPRINTF("0x%08x => 0x%04x\n", addr - PPC_IO_BASE, value); + } + cpu_outw(NULL, addr - PPC_IO_BASE, value); +} + +static uint32_t PPC_io_readw (uint32_t addr) +{ + uint32_t ret = cpu_inw(NULL, addr - PPC_IO_BASE); + + if ((addr < 0x800001f0 || addr > 0x800001f7) && + (addr < 0x80000170 || addr > 0x80000177)) { + PPC_IO_DPRINTF("0x%08x <= 0x%04x\n", addr - PPC_IO_BASE, ret); + } + + return ret; +} + +static void PPC_io_writel (uint32_t addr, uint32_t value) +{ + PPC_IO_DPRINTF("0x%08x => 0x%08x\n", addr - PPC_IO_BASE, value); + cpu_outl(NULL, addr - PPC_IO_BASE, value); +} + +static uint32_t PPC_io_readl (uint32_t addr) +{ + uint32_t ret = cpu_inl(NULL, addr - PPC_IO_BASE); + + PPC_IO_DPRINTF("0x%08x <= 0x%08x\n", addr - PPC_IO_BASE, ret); + + return ret; +} + +static CPUWriteMemoryFunc *PPC_io_write[] = { + &PPC_io_writeb, + &PPC_io_writew, + &PPC_io_writel, +}; + +static CPUReadMemoryFunc *PPC_io_read[] = { + &PPC_io_readb, + &PPC_io_readw, + &PPC_io_readl, +}; + +uint32_t pic_intack_read(CPUState *env); + +/* Read-only register (?) */ +static void _PPC_ioB_write (uint32_t addr, uint32_t value) +{ + PPC_IO_DPRINTF("0x%08x => 0x%08x\n", addr, value); +} + +static uint32_t _PPC_ioB_read (uint32_t addr) +{ + uint32_t retval = 0; + + if (addr == 0xBFFFFFF0) + retval = pic_intack_read(NULL); + PPC_IO_DPRINTF("0x%08x <= 0x%08x\n", addr, retval); + + return retval; +} + +static CPUWriteMemoryFunc *PPC_ioB_write[] = { + &_PPC_ioB_write, + &_PPC_ioB_write, + &_PPC_ioB_write, +}; + +static CPUReadMemoryFunc *PPC_ioB_read[] = { + &_PPC_ioB_read, + &_PPC_ioB_read, + &_PPC_ioB_read, +}; + +#if 0 +static CPUWriteMemoryFunc *PPC_io3_write[] = { + &PPC_io3_writeb, + &PPC_io3_writew, + &PPC_io3_writel, +}; + +static CPUReadMemoryFunc *PPC_io3_read[] = { + &PPC_io3_readb, + &PPC_io3_readw, + &PPC_io3_readl, +}; +#endif + +/* Fake super-io ports for PREP platform (Intel 82378ZB) */ +static uint8_t PREP_fake_io[2]; +static uint8_t NVRAM_lock; + +static void PREP_io_write (CPUState *env, uint32_t addr, uint32_t val) +{ + PREP_fake_io[addr - 0x0398] = val; +} + +static uint32_t PREP_io_read (CPUState *env, uint32_t addr) +{ + return PREP_fake_io[addr - 0x0398]; +} + +static uint8_t syscontrol; + +static void PREP_io_800_writeb (CPUState *env, uint32_t addr, uint32_t val) +{ + switch (addr) { + case 0x0092: + /* Special port 92 */ + /* Check soft reset asked */ + if (val & 0x80) { + printf("Soft reset asked... Stop emulation\n"); + abort(); + } + /* Check LE mode */ + if (val & 0x40) { + printf("Little Endian mode isn't supported (yet ?)\n"); + abort(); + } + break; + case 0x0808: + /* Hardfile light register: don't care */ + break; + case 0x0810: + /* Password protect 1 register */ + NVRAM_lock ^= 0x01; + break; + case 0x0812: + /* Password protect 2 register */ + NVRAM_lock ^= 0x02; + break; + case 0x0814: + /* L2 invalidate register: don't care */ + break; + case 0x081C: + /* system control register */ + syscontrol = val; + break; + case 0x0850: + /* I/O map type register */ + if (val & 0x80) { + printf("No support for non-continuous I/O map mode\n"); + abort(); + } + break; + default: + break; + } +} + +static uint32_t PREP_io_800_readb (CPUState *env, uint32_t addr) +{ + uint32_t retval = 0xFF; + + switch (addr) { + case 0x0092: + /* Special port 92 */ + retval = 0x40; + break; + case 0x080C: + /* Equipment present register: + * no L2 cache + * no upgrade processor + * no cards in PCI slots + * SCSI fuse is bad + */ + retval = 0xFC; + break; + case 0x0818: + /* Keylock */ + retval = 0x00; + break; + case 0x081C: + /* system control register + * 7 - 6 / 1 - 0: L2 cache enable + */ + retval = syscontrol; + break; + case 0x0823: + /* */ + retval = 0x03; /* no L2 cache */ + break; + case 0x0850: + /* I/O map type register */ + retval = 0x00; + break; + default: + break; + } + + return retval; +} + +/* M48T59 NVRAM/RTC emulation */ +static uint8_t NVRAM[NVRAM_SIZE]; + +/* RTC */ +static time_t time_offset; + +time_t get_time (void) +{ + return time(NULL) + time_offset; +} + +void set_time_offset (time_t new_time) +{ + time_t now = time(NULL); + + time_offset = new_time - now; +} + +static void NVRAM_init (void) +{ + /* NVRAM header */ + /* 0x00: NVRAM size in kB */ + NVRAM[0x00] = (NVRAM_SIZE >> 12) & 0xFF; + NVRAM[0x01] = (NVRAM_SIZE >> 10) & 0xFF; + /* 0x02: NVRAM version */ + NVRAM[0x02] = 0x01; + /* 0x03: NVRAM revision */ + NVRAM[0x03] = 0x00; + /* 0x04: checksum 0 => OS area */ + /* 0x06: checksum of config area */ + /* 0x08: last OS */ + NVRAM[0x08] = 0x00; /* Unknown */ + /* 0x09: endian */ + NVRAM[0x09] = 'B'; + /* 0x0B: PM mode */ + NVRAM[0x0B] = 0x00; + /* Restart block description record */ + /* 0x0C: restart block version */ + NVRAM[0x0C] = 0x00; + NVRAM[0x0D] = 0x01; + /* 0x0E: restart block revision */ + NVRAM[0x0E] = 0x00; + NVRAM[0x0F] = 0x00; + /* 0x1C: checksum of restart block */ + /* 0x20: restart address */ + NVRAM[0x20] = 0x00; + NVRAM[0x21] = 0x00; + NVRAM[0x22] = 0x00; + NVRAM[0x23] = 0x00; + /* 0x24: save area address */ + NVRAM[0x24] = 0x00; + NVRAM[0x25] = 0x00; + NVRAM[0x26] = 0x00; + NVRAM[0x27] = 0x00; + /* 0x28: save area length */ + NVRAM[0x28] = 0x00; + NVRAM[0x29] = 0x00; + NVRAM[0x2A] = 0x00; + NVRAM[0x2B] = 0x00; + /* Security section */ + /* Set all to zero */ + /* 0xC4: pointer to global environment area */ + NVRAM[0xC4] = 0x00; + NVRAM[0xC5] = 0x00; + NVRAM[0xC6] = 0x01; + NVRAM[0xC7] = 0x00; + /* 0xC8: size of global environment area */ + NVRAM[0xC8] = 0x00; + NVRAM[0xC9] = 0x00; + NVRAM[0xCA] = 0x07; + NVRAM[0xCB] = 0x00; + /* 0xD4: pointer to configuration area */ + NVRAM[0xD4] = 0x00; + NVRAM[0xD5] = 0x00; + NVRAM[0xD6] = 0x08; + NVRAM[0xD7] = 0x00; + /* 0xD8: size of configuration area */ + NVRAM[0xD8] = 0x00; + NVRAM[0xD9] = 0x00; + NVRAM[0xDA] = 0x08; + NVRAM[0xDB] = 0x00; + /* 0xE8: pointer to OS specific area */ + NVRAM[0xE8] = 0x00; + NVRAM[0xE9] = 0x00; + NVRAM[0xEA] = 0x10; + NVRAM[0xEB] = 0x00; + /* 0xD8: size of OS specific area */ + NVRAM[0xEC] = 0x00; + NVRAM[0xED] = 0x00; + NVRAM[0xEE] = 0x0F; + NVRAM[0xEF] = 0xF0; + /* CRC */ + /* RTC init */ + NVRAM[0x1FFC] = 0x50; +} + +static uint16_t NVRAM_addr; + +/* Direct access to NVRAM */ +void NVRAM_write (CPUState *env, uint32_t addr, uint32_t val) +{ + switch (addr) { + case 0x1FF0: + /* flags register */ + break; + case 0x1FF1: + /* unused */ + break; + case 0x1FF2: + /* alarm seconds */ + break; + case 0x1FF3: + /* alarm minutes */ + break; + case 0x1FF4: + /* alarm hours */ + break; + case 0x1FF5: + /* alarm date */ + break; + case 0x1FF6: + /* interrupts */ + break; + case 0x1FF7: + /* watchdog */ + break; + case 0x1FF8: + /* control */ + break; + case 0x1FF9: + /* seconds (BCD) */ + break; + case 0x1FFA: + /* minutes (BCD) */ + break; + case 0x1FFB: + /* hours (BCD) */ + break; + case 0x1FFC: + /* day of the week / century */ + NVRAM[0x1FFC] = val & 0x50; + break; + case 0x1FFD: + /* date */ + break; + case 0x1FFE: + /* month */ + break; + case 0x1FFF: + /* year */ + break; + default: + if (addr < NVRAM_SIZE) + NVRAM[addr] = val & 0xFF; + break; + } +} + +uint32_t NVRAM_read (CPUState *env, uint32_t addr) +{ + struct tm tm; + time_t t; + uint32_t retval = 0xFF; + + switch (addr) { + case 0x1FF0: + /* flags register */ + break; + case 0x1FF1: + /* unused */ + break; + case 0x1FF2: + /* alarm seconds */ + break; + case 0x1FF3: + /* alarm minutes */ + break; + case 0x1FF4: + /* alarm hours */ + break; + case 0x1FF5: + /* alarm date */ + break; + case 0x1FF6: + /* interrupts */ + break; + case 0x1FF7: + /* watchdog */ + break; + case 0x1FF8: + /* control */ + break; + case 0x1FF9: + /* seconds (BCD) */ + t = get_time(); + localtime_r(&t, &tm); + retval = ((tm.tm_sec / 10) << 4) | (tm.tm_sec % 10); +// printf("return seconds=%d\n", tm.tm_sec); + break; + case 0x1FFA: + /* minutes (BCD) */ + t = get_time(); + localtime_r(&t, &tm); + retval = ((tm.tm_min / 10) << 4) | (tm.tm_min % 10); + break; + case 0x1FFB: + /* hours (BCD) */ + t = get_time(); + localtime_r(&t, &tm); + retval = ((tm.tm_hour / 10) << 4) | (tm.tm_hour % 10); + break; + case 0x1FFC: + /* day of the week / century */ + t = get_time(); + localtime_r(&t, &tm); + retval = (NVRAM[0x1FFC] & 0x50) | tm.tm_wday; + break; + case 0x1FFD: + /* date */ + t = get_time(); + localtime_r(&t, &tm); + retval = ((tm.tm_mday / 10) << 4) | (tm.tm_mday % 10); + break; + case 0x1FFE: + /* month */ + t = get_time(); + localtime_r(&t, &tm); + retval = ((tm.tm_mon / 10) << 4) | (tm.tm_mon % 10); + break; + case 0x1FFF: + /* year */ + t = get_time(); + localtime_r(&t, &tm); + retval = ((tm.tm_year / 10) << 4) | (tm.tm_year % 10); + break; + default: + if (NVRAM_addr < NVRAM_SIZE) + retval = NVRAM[NVRAM_addr]; + break; + } + + return retval; +} + +/* IO access to NVRAM */ +static void NVRAM_writeb (CPUState *env, uint32_t addr, uint32_t val) +{ + switch (addr) { + case 0x74: + NVRAM_addr &= ~0x00FF; + NVRAM_addr |= val; + break; + case 0x75: + NVRAM_addr &= ~0xFF00; + NVRAM_addr |= val << 8; + break; + case 0x77: + NVRAM_write(env, NVRAM_addr, val); + NVRAM_addr = 0x0000; + break; + default: + break; + } +} + +static uint32_t NVRAM_readb (CPUState *env, uint32_t addr) +{ + if (addr == 0x77) + return NVRAM_read(env, NVRAM_addr); + + return 0xFF; +} + +int load_initrd (const char *filename, uint8_t *addr) +{ + int fd, size; + + printf("Load initrd\n"); + fd = open(filename, O_RDONLY); + if (fd < 0) + return -1; + size = read(fd, addr, 16 * 1024 * 1024); + if (size < 0) + goto fail; + close(fd); + printf("Load initrd: %d\n", size); + return size; + fail: + close(fd); + printf("Load initrd failed\n"); + return -1; +} + +/* Quick hack for PPC memory infos... */ +static void put_long (void *addr, uint32_t l) +{ + char *pos = addr; + pos[0] = (l >> 24) & 0xFF; + pos[1] = (l >> 16) & 0xFF; + pos[2] = (l >> 8) & 0xFF; + pos[3] = l & 0xFF; +} + +/* bootloader infos are in the form: + * uint32_t TAG + * uint32_t TAG_size (from TAG to next TAG). + * datas + * .... + */ +#if !defined (USE_OPEN_FIRMWARE) +static void *set_bootinfo_tag (void *addr, uint32_t tag, uint32_t size, + void *data) +{ + char *pos = addr; + + put_long(pos, tag); + pos += 4; + put_long(pos, size + 8); + pos += 4; + memcpy(pos, data, size); + pos += size; + + return pos; +} +#endif + +typedef struct boot_dev_t { + const unsigned char *name; + int major; + int minor; +} boot_dev_t; + +static boot_dev_t boot_devs[] = +{ + { "/dev/fd0", 2, 0, }, + { "/dev/fd1", 2, 1, }, + { "/dev/hda1", 3, 1, }, +// { "/dev/ide/host0/bus0/target0/lun0/part1", 3, 1, }, + { "/dev/hdc", 22, 0, }, + { "/dev/ram0 init=/linuxrc", 1, 0, }, +}; + +/* BATU: + * BEPI : bloc virtual address + * BL : area size bits (128 kB is 0, 256 1, 512 3, ... + * Vs/Vp + * BATL: + * BPRN : bloc real address align on 4MB boundary + * WIMG : cache access mode : not used + * PP : protection bits + */ +static void setup_BAT (CPUPPCState *env, int BAT, + uint32_t virtual, uint32_t physical, + uint32_t size, int Vs, int Vp, int PP) +{ + uint32_t sz_bits, tmp_sz, align, tmp; + + sz_bits = 0; + align = 131072; + for (tmp_sz = size / 131072; tmp_sz != 1; tmp_sz = tmp_sz >> 1) { + sz_bits = (sz_bits << 1) + 1; + align = align << 1; + } + tmp = virtual & ~(align - 1); /* Align virtual area start */ + tmp |= sz_bits << 2; /* Fix BAT size */ + tmp |= Vs << 1; /* Supervisor access */ + tmp |= Vp; /* User access */ + env->DBAT[0][BAT] = tmp; + env->IBAT[0][BAT] = tmp; + tmp = physical & ~(align - 1); /* Align physical area start */ + tmp |= 0; /* Don't care about WIMG */ + tmp |= PP; /* Protection */ + env->DBAT[1][BAT] = tmp; + env->IBAT[1][BAT] = tmp; + printf("Set BATU0 to 0x%08x BATL0 to 0x%08x\n", + env->DBAT[0][BAT], env->DBAT[1][BAT]); +} + +static void VGA_printf (uint8_t *s) +{ + uint16_t *arg_ptr; + unsigned int format_width, i; + int in_format; + uint16_t arg, digit, nibble; + uint8_t c; + + arg_ptr = (uint16_t *)(&s); + in_format = 0; + format_width = 0; + while ((c = *s) != '\0') { + if (c == '%') { + in_format = 1; + format_width = 0; + } else if (in_format) { + if ((c >= '0') && (c <= '9')) { + format_width = (format_width * 10) + (c - '0'); + } else if (c == 'x') { + arg_ptr++; // increment to next arg + arg = *arg_ptr; + if (format_width == 0) + format_width = 4; + digit = format_width - 1; + for (i = 0; i < format_width; i++) { + nibble = (arg >> (4 * digit)) & 0x000f; + if (nibble <= 9) + PPC_io_writeb(PPC_IO_BASE + 0x500, nibble + '0'); + else + PPC_io_writeb(PPC_IO_BASE + 0x500, nibble + 'A'); + digit--; + } + in_format = 0; + } + //else if (c == 'd') { + // in_format = 0; + // } + } else { + PPC_io_writeb(PPC_IO_BASE + 0x500, c); + } + s++; + } +} + +static void VGA_init (void) +{ + /* Basic VGA init, inspired by plex86 VGAbios */ + printf("Init VGA...\n"); + /* switch to color mode and enable CPU access 480 lines */ + PPC_io_writeb(PPC_IO_BASE + 0x3C2, 0xC3); + /* more than 64k 3C4/04 */ + PPC_io_writeb(PPC_IO_BASE + 0x3C4, 0x04); + PPC_io_writeb(PPC_IO_BASE + 0x3C5, 0x02); + VGA_printf("PPC VGA BIOS...\n"); +} + +void PPC_init_hw (CPUPPCState *env, uint32_t mem_size, + uint32_t kernel_addr, uint32_t kernel_size, + uint32_t stack_addr, int boot_device) +{ + char *p; +#if !defined (USE_OPEN_FIRMWARE) + char *tmp; + uint32_t tmpi[2]; +#endif + int PPC_io_memory; + +#if defined (USE_OPEN_FIRMWARE) + setup_memory(env, mem_size); +#endif + /* Register 64 kB of IO space */ + PPC_io_memory = cpu_register_io_memory(0, PPC_io_read, PPC_io_write); + cpu_register_physical_memory(0x80000000, 0x10000, PPC_io_memory); + /* Register fake IO ports for PREP */ + register_ioport_read(0x398, 2, PREP_io_read, 1); + register_ioport_write(0x398, 2, PREP_io_write, 1); + /* System control ports */ + register_ioport_write(0x0092, 0x1, PREP_io_800_writeb, 1); + register_ioport_read(0x0800, 0x52, PREP_io_800_readb, 1); + register_ioport_write(0x0800, 0x52, PREP_io_800_writeb, 1); + /* PCI intack location */ + PPC_io_memory = cpu_register_io_memory(0, PPC_ioB_read, PPC_ioB_write); + cpu_register_physical_memory(0xBFFFFFF0, 0x4, PPC_io_memory); + /* NVRAM ports */ + NVRAM_init(); + register_ioport_read(0x0074, 0x04, NVRAM_readb, 1); + register_ioport_write(0x0074, 0x04, NVRAM_writeb, 1); + + /* Fake bootloader */ + env->nip = kernel_addr + (3 * sizeof(uint32_t)); + /* Set up msr according to PREP specification */ + msr_ee = 0; + msr_fp = 1; + msr_pr = 0; /* Start in supervisor mode */ + msr_me = 1; + msr_fe0 = msr_fe1 = 0; + msr_ip = 0; + msr_ir = msr_dr = 1; +// msr_sf = 0; + msr_le = msr_ile = 0; + env->gpr[1] = stack_addr; /* Let's have a stack */ + env->gpr[2] = 0; + env->gpr[8] = kernel_addr; + /* There is a bug in 2.4 kernels: + * if a decrementer exception is pending when it enables msr_ee, + * it's not ready to handle it... + */ + env->decr = 0xFFFFFFFF; + p = (void *)(phys_ram_base + kernel_addr); +#if !defined (USE_OPEN_FIRMWARE) + /* Let's register the whole memory available only in supervisor mode */ + setup_BAT(env, 0, 0x00000000, 0x00000000, mem_size, 1, 0, 2); + /* Avoid open firmware init call (to get a console) + * This will make the kernel think we are a PREP machine... + */ + put_long(p, 0xdeadc0de); + /* Build a real stack room */ + p = (void *)(phys_ram_base + stack_addr); + put_long(p, stack_addr); + p -= 32; + env->gpr[1] -= 32; + /* Pretend there are no residual data */ + env->gpr[3] = 0; +#if 1 + { + int size; + env->gpr[4] = 0x00800000; + size = load_initrd("initrd", + (void *)((uint32_t)phys_ram_base + env->gpr[4])); + if (size < 0) { + /* No initrd */ + env->gpr[4] = env->gpr[5] = 0; + } else { + env->gpr[5] = size; + boot_device = 'e'; + } + printf("Initrd loaded at 0x%08x (%d)\n", env->gpr[4], env->gpr[5]); + } +#else + env->gpr[4] = env->gpr[5] = 0; +#endif + /* We have to put bootinfos after the BSS + * The BSS starts after the kernel end. + */ +#if 0 + p = (void *)(((uint32_t)phys_ram_base + kernel_addr + + kernel_size + (1 << 20) - 1) & ~((1 << 20) - 1)); +#else + p = (void *)((uint32_t)phys_ram_base + kernel_addr + 0x400000); +#endif + if (loglevel > 0) { + fprintf(logfile, "bootinfos: %p 0x%08x\n", + p, (uint32_t)p - (uint32_t)phys_ram_base); + } else { + printf("bootinfos: %p 0x%08x\n", + p, (uint32_t)p - (uint32_t)phys_ram_base); + } + /* Command line: let's put it after bootinfos */ +#if 0 + sprintf(p + 0x1000, "console=ttyS0,9600 root=%02x%02x mem=%dM", + boot_devs[boot_device - 'a'].major, + boot_devs[boot_device - 'a'].minor, + phys_ram_size >> 20); +#else + sprintf(p + 0x1000, "console=ttyS0,9600 console=tty0 root=%s mem=%dM load_ramdisk=1", + boot_devs[boot_device - 'a'].name, + phys_ram_size >> 20); +#endif + env->gpr[6] = (uint32_t)p + 0x1000 - (uint32_t)phys_ram_base; + env->gpr[7] = env->gpr[6] + strlen(p + 0x1000); + if (loglevel > 0) { + fprintf(logfile, "cmdline: %p 0x%08x [%s]\n", + p + 0x1000, env->gpr[6], p + 0x1000); + } else { + printf("cmdline: %p 0x%08x [%s]\n", + p + 0x1000, env->gpr[6], p + 0x1000); + } + /* BI_FIRST */ + p = set_bootinfo_tag(p, 0x1010, 0, 0); + /* BI_CMD_LINE */ + p = set_bootinfo_tag(p, 0x1012, env->gpr[7] - env->gpr[6], + (void *)(env->gpr[6] + (uint32_t)phys_ram_base)); + /* BI_MEM_SIZE */ + tmp = (void *)tmpi; + tmp[0] = (phys_ram_size >> 24) & 0xFF; + tmp[1] = (phys_ram_size >> 16) & 0xFF; + tmp[2] = (phys_ram_size >> 8) & 0xFF; + tmp[3] = phys_ram_size & 0xFF; + p = set_bootinfo_tag(p, 0x1017, 4, tmpi); + /* BI_INITRD */ + tmp[0] = (env->gpr[4] >> 24) & 0xFF; + tmp[1] = (env->gpr[4] >> 16) & 0xFF; + tmp[2] = (env->gpr[4] >> 8) & 0xFF; + tmp[3] = env->gpr[4] & 0xFF; + tmp[4] = (env->gpr[5] >> 24) & 0xFF; + tmp[5] = (env->gpr[5] >> 16) & 0xFF; + tmp[6] = (env->gpr[5] >> 8) & 0xFF; + tmp[7] = env->gpr[5] & 0xFF; + p = set_bootinfo_tag(p, 0x1014, 8, tmpi); + /* BI_LAST */ + p = set_bootinfo_tag(p, 0x1011, 0, 0); +#else + /* Set up MMU: + * kernel is loaded at kernel_addr and wants to be seen at 0x01000000 + */ + setup_BAT(env, 0, 0x01000000, kernel_addr, 0x00400000, 1, 0, 2); + { +#if 0 + uint32_t offset = + *((uint32_t *)((uint32_t)phys_ram_base + kernel_addr)); +#else + uint32_t offset = 12; +#endif + env->nip = 0x01000000 | (kernel_addr + offset); + printf("Start address: 0x%08x\n", env->nip); + } + env->gpr[1] = env->nip + (1 << 22); + p = (void *)(phys_ram_base + stack_addr); + put_long(p - 32, stack_addr); + env->gpr[1] -= 32; + printf("Kernel starts at 0x%08x stack 0x%08x\n", env->nip, env->gpr[1]); + /* We want all lower address not to be translated */ + setup_BAT(env, 1, 0x00000000, 0x00000000, 0x010000000, 1, 1, 2); + /* We also need a BAT to access OF */ + setup_BAT(env, 2, 0xFFFE0000, mem_size - 131072, 131072, 1, 0, 1); + /* Setup OF entry point */ + { + char *p; + p = (char *)phys_ram_base + mem_size - 131072; + /* Special opcode to call OF */ + *p++ = 0x18; *p++ = 0x00; *p++ = 0x00; *p++ = 0x02; + /* blr */ + *p++ = 0x4E; *p++ = 0x80; *p++ = 0x00; *p++ = 0x20; + } + env->gpr[5] = 0xFFFE0000; + /* Register translations */ + { + OF_transl_t translations[3] = { + { 0x01000000, 0x00400000, kernel_addr, 0x00000002, }, + { 0x00000000, 0x01000000, 0x00000000, 0x00000002, }, + { 0xFFFE0000, 0x00020000, mem_size - (128 * 1024), + 0x00000001, }, + }; + OF_register_translations(3, translations); + } + /* Quite artificial, for now */ + OF_register_bus("isa", "isa"); + OF_register_serial("isa", "serial", 4, 0x3f8); + OF_register_stdio("serial", "serial"); + /* Set up RTAS service */ + RTAS_init(); + /* Command line: let's put it just over the stack */ +#if 1 + sprintf(p, "console=ttyS0,9600 root=%02x%02x mem=%dM", + boot_devs[boot_device - 'a'].major, + boot_devs[boot_device - 'a'].minor, + phys_ram_size >> 20); +#else + sprintf(p, "console=ttyS0,9600 root=%s mem=%dM ne2000=0x300,9", + boot_devs[boot_device - 'a'].name, + phys_ram_size >> 20); +#endif + OF_register_bootargs(p); +#endif +} + +void PPC_end_init (void) +{ + VGA_init(); +} diff --git a/target-ppc/op.c b/target-ppc/op.c index cf77d5ee28..28722d6507 100644 --- a/target-ppc/op.c +++ b/target-ppc/op.c @@ -21,6 +21,8 @@ #include "config.h" #include "exec.h" +//#define DEBUG_OP + #define regs (env) #define Ts0 (int32_t)T0 #define Ts1 (int32_t)T1 @@ -34,7 +36,7 @@ #define FTS1 ((float)env->ft1) #define FTS2 ((float)env->ft2) -#define PPC_OP(name) void op_##name(void) +#define PPC_OP(name) void glue(op_, name)(void) #define REG 0 #include "op_template.h" @@ -145,7 +147,7 @@ PPC_OP(set_Rc0) } else { tmp = 0x02; } - set_CRn(0, tmp); + env->crf[0] = tmp; RETURN(); } @@ -161,21 +163,21 @@ PPC_OP(set_Rc0_ov) tmp = 0x02; } tmp |= xer_ov; - set_CRn(0, tmp); + env->crf[0] = tmp; RETURN(); } /* reset_Rc0 */ PPC_OP(reset_Rc0) { - set_CRn(0, 0x02 | xer_ov); + env->crf[0] = 0x02 | xer_ov; RETURN(); } /* set_Rc0_1 */ PPC_OP(set_Rc0_1) { - set_CRn(0, 0x04 | xer_ov); + env->crf[0] = 0x04 | xer_ov; RETURN(); } @@ -186,6 +188,7 @@ PPC_OP(set_Rc1) RETURN(); } +/* Constants load */ PPC_OP(set_T0) { T0 = PARAM(1); @@ -204,23 +207,50 @@ PPC_OP(set_T2) RETURN(); } -/* Update time base */ -PPC_OP(update_tb) +/* Generate exceptions */ +PPC_OP(queue_exception_err) { - T0 = regs->spr[SPR_ENCODE(268)]; - T1 = T0; - T0 += PARAM(1); - if (T0 < T1) { - T1 = regs->spr[SPR_ENCODE(269)] + 1; - regs->spr[SPR_ENCODE(269)] = T1; + do_queue_exception_err(PARAM(1), PARAM(2)); +} + +PPC_OP(queue_exception) +{ + do_queue_exception(PARAM(1)); +} + +PPC_OP(process_exceptions) +{ + if (env->exceptions != 0) { + env->nip = PARAM(1); + do_check_exception_state(); } - regs->spr[SPR_ENCODE(268)] = T0; +} + +/* Segment registers load and store with immediate index */ +PPC_OP(load_srin) +{ + T0 = regs->sr[T1 >> 28]; + RETURN(); +} + +PPC_OP(store_srin) +{ +#if defined (DEBUG_OP) + dump_store_sr(T1 >> 28); +#endif + regs->sr[T1 >> 28] = T0; + RETURN(); +} + +PPC_OP(load_sdr1) +{ + T0 = regs->sdr1; RETURN(); } -PPC_OP(raise_exception) +PPC_OP(store_sdr1) { - raise_exception(PARAM(1)); + regs->sdr1 = T0; RETURN(); } @@ -229,15 +259,16 @@ PPC_OP(exit_tb) EXIT_TB(); } +/* Load/store special registers */ PPC_OP(load_cr) { - T0 = do_load_cr(); + do_load_cr(); RETURN(); } PPC_OP(store_cr) { - do_store_cr(PARAM(1), T0); + do_store_cr(PARAM(1)); RETURN(); } @@ -257,40 +288,152 @@ PPC_OP(clear_xer_cr) PPC_OP(load_xer_bc) { - T0 = xer_bc; + T1 = xer_bc; RETURN(); } PPC_OP(load_xer) { - T0 = do_load_xer(); + do_load_xer(); RETURN(); } PPC_OP(store_xer) { - do_store_xer(T0); + do_store_xer(); RETURN(); } PPC_OP(load_msr) { - T0 = do_load_msr(); + do_load_msr(); RETURN(); } PPC_OP(store_msr) { - do_store_msr(T0); + do_store_msr(); + RETURN(); +} + +/* SPR */ +PPC_OP(load_spr) +{ + T0 = regs->spr[PARAM(1)]; + RETURN(); +} + +PPC_OP(store_spr) +{ + regs->spr[PARAM(1)] = T0; RETURN(); } PPC_OP(load_lr) { - regs->LR = PARAM(1); + T0 = regs->lr; + RETURN(); +} + +PPC_OP(store_lr) +{ + regs->lr = T0; + RETURN(); +} + +PPC_OP(load_ctr) +{ + T0 = regs->ctr; + RETURN(); +} + +PPC_OP(store_ctr) +{ + regs->ctr = T0; + RETURN(); +} + +/* Update time base */ +PPC_OP(update_tb) +{ + T0 = regs->tb[0]; + T1 = T0; + T0 += PARAM(1); +#if defined (DEBUG_OP) + dump_update_tb(PARAM(1)); +#endif + if (T0 < T1) { + T1 = regs->tb[1] + 1; + regs->tb[1] = T1; + } + regs->tb[0] = T0; + RETURN(); +} + +PPC_OP(load_tb) +{ + T0 = regs->tb[PARAM(1)]; + RETURN(); +} + +PPC_OP(store_tb) +{ + regs->tb[PARAM(1)] = T0; +#if defined (DEBUG_OP) + dump_store_tb(PARAM(1)); +#endif RETURN(); } +/* Update decrementer */ +PPC_OP(update_decr) +{ + T0 = regs->decr; + T1 = T0; + T0 -= PARAM(1); + regs->decr = T0; + if (PARAM(1) > T1) { + do_queue_exception(EXCP_DECR); + } + RETURN(); +} + +PPC_OP(store_decr) +{ + T1 = regs->decr; + regs->decr = T0; + if (Ts0 < 0 && Ts1 > 0) { + do_queue_exception(EXCP_DECR); + } + RETURN(); +} + +PPC_OP(load_ibat) +{ + T0 = regs->IBAT[PARAM(1)][PARAM(2)]; +} + +PPC_OP(store_ibat) +{ +#if defined (DEBUG_OP) + dump_store_ibat(PARAM(1), PARAM(2)); +#endif + regs->IBAT[PARAM(1)][PARAM(2)] = T0; +} + +PPC_OP(load_dbat) +{ + T0 = regs->DBAT[PARAM(1)][PARAM(2)]; +} + +PPC_OP(store_dbat) +{ +#if defined (DEBUG_OP) + dump_store_dbat(PARAM(1), PARAM(2)); +#endif + regs->DBAT[PARAM(1)][PARAM(2)] = T0; +} + /* FPSCR */ PPC_OP(load_fpscr) { @@ -313,14 +456,7 @@ PPC_OP(reset_scrfx) /* Set reservation */ PPC_OP(set_reservation) { - regs->reserve = T1 & ~0x03; - RETURN(); -} - -/* Reset reservation */ -PPC_OP(reset_reservation) -{ - regs->reserve = 0; + regs->reserve = T0 & ~0x03; RETURN(); } @@ -344,47 +480,65 @@ PPC_OP(setcrfbit) } /* Branch */ +#if 0 +#define EIP regs->nip +#define TB_DO_JUMP(name, tb, n, target) JUMP_TB(name, tb, n, target) +#else +#define TB_DO_JUMP(name, tb, n, target) regs->nip = target; +#endif + #define __PPC_OP_B(name, target) \ PPC_OP(name) \ { \ - regs->nip = (target); \ + TB_DO_JUMP(glue(op_, name), T1, 0, (target)); \ RETURN(); \ } -#define __PPC_OP_BL(name, target) \ +#define __PPC_OP_BL(name, target, link) \ PPC_OP(name) \ { \ - regs->LR = PARAM(1); \ - regs->nip = (target); \ + regs->lr = (link); \ + TB_DO_JUMP(glue(op_, name), T1, 0, (target)); \ RETURN(); \ } -#define PPC_OP_B(name, target) \ +#define PPC_OP_B(name, target, link) \ __PPC_OP_B(name, target); \ -__PPC_OP_BL(name##l, target) +__PPC_OP_BL(glue(name, l), target, link) #define __PPC_OP_BC(name, cond, target) \ PPC_OP(name) \ { \ if (cond) { \ - T0 = (target); \ + TB_DO_JUMP(glue(op_, name), T1, 1, (target)); \ } else { \ - T0 = PARAM(1); \ + TB_DO_JUMP(glue(op_, name), T1, 0, PARAM(1)); \ } \ - regs->nip = T0; \ RETURN(); \ } #define __PPC_OP_BCL(name, cond, target) \ PPC_OP(name) \ { \ + regs->lr = PARAM(1); \ if (cond) { \ - T0 = (target); \ - regs->LR = PARAM(1); \ + TB_DO_JUMP(glue(op_, name), T1, 1, (target)); \ } else { \ - T0 = PARAM(1); \ + TB_DO_JUMP(glue(op_, name), T1, 0, PARAM(1)); \ + } \ + RETURN(); \ +} + +#define __PPC_OP_BCLRL(name, cond, target) \ +PPC_OP(name) \ +{ \ + T2 = (target); \ + regs->lr = PARAM(1); \ + if (cond) { \ + TB_DO_JUMP(glue(op_, name), T1, 1, T2); \ + } else { \ + TB_DO_JUMP(glue(op_, name), T1, 0, PARAM(1)); \ } \ - regs->nip = T0; \ RETURN(); \ } @@ -396,48 +550,56 @@ __PPC_OP_BCL(namel, cond, target) #define PPC_OP_BC(name, cond) \ _PPC_OP_BC(b_##name, bl_##name, cond, PARAM(2)) -PPC_OP_B(b, PARAM(1)); -PPC_OP_BC(ctr, (regs->CTR != 0)); -PPC_OP_BC(ctr_true, (regs->CTR != 0 && (T0 & PARAM(3)) != 0)); -PPC_OP_BC(ctr_false, (regs->CTR != 0 && (T0 & PARAM(3)) == 0)); -PPC_OP_BC(ctrz, (regs->CTR == 0)); -PPC_OP_BC(ctrz_true, (regs->CTR == 0 && (T0 & PARAM(3)) != 0)); -PPC_OP_BC(ctrz_false, (regs->CTR == 0 && (T0 & PARAM(3)) == 0)); +PPC_OP_B(b, PARAM(1), PARAM(2)); +PPC_OP_BC(ctr, (regs->ctr != 0)); +PPC_OP_BC(ctr_true, (regs->ctr != 0 && (T0 & PARAM(3)) != 0)); +PPC_OP_BC(ctr_false, (regs->ctr != 0 && (T0 & PARAM(3)) == 0)); +PPC_OP_BC(ctrz, (regs->ctr == 0)); +PPC_OP_BC(ctrz_true, (regs->ctr == 0 && (T0 & PARAM(3)) != 0)); +PPC_OP_BC(ctrz_false, (regs->ctr == 0 && (T0 & PARAM(3)) == 0)); PPC_OP_BC(true, ((T0 & PARAM(3)) != 0)); PPC_OP_BC(false, ((T0 & PARAM(3)) == 0)); /* Branch to CTR */ #define PPC_OP_BCCTR(name, cond) \ -_PPC_OP_BC(bctr_##name, bctrl_##name, cond, regs->CTR & ~0x03) - -PPC_OP_B(bctr, regs->CTR & ~0x03); -PPC_OP_BCCTR(ctr, (regs->CTR != 0)); -PPC_OP_BCCTR(ctr_true, (regs->CTR != 0 && (T0 & PARAM(2)) != 0)); -PPC_OP_BCCTR(ctr_false, (regs->CTR != 0 && (T0 & PARAM(2)) == 0)); -PPC_OP_BCCTR(ctrz, (regs->CTR == 0)); -PPC_OP_BCCTR(ctrz_true, (regs->CTR == 0 && (T0 & PARAM(2)) != 0)); -PPC_OP_BCCTR(ctrz_false, (regs->CTR == 0 && (T0 & PARAM(2)) == 0)); +_PPC_OP_BC(bctr_##name, bctrl_##name, cond, regs->ctr & ~0x03) + +PPC_OP_B(bctr, regs->ctr & ~0x03, PARAM(1)); +PPC_OP_BCCTR(ctr, (regs->ctr != 0)); +PPC_OP_BCCTR(ctr_true, (regs->ctr != 0 && (T0 & PARAM(2)) != 0)); +PPC_OP_BCCTR(ctr_false, (regs->ctr != 0 && (T0 & PARAM(2)) == 0)); +PPC_OP_BCCTR(ctrz, (regs->ctr == 0)); +PPC_OP_BCCTR(ctrz_true, (regs->ctr == 0 && (T0 & PARAM(2)) != 0)); +PPC_OP_BCCTR(ctrz_false, (regs->ctr == 0 && (T0 & PARAM(2)) == 0)); PPC_OP_BCCTR(true, ((T0 & PARAM(2)) != 0)); PPC_OP_BCCTR(false, ((T0 & PARAM(2)) == 0)); /* Branch to LR */ #define PPC_OP_BCLR(name, cond) \ -_PPC_OP_BC(blr_##name, blrl_##name, cond, regs->LR & ~0x03) - -PPC_OP_B(blr, regs->LR & ~0x03); -PPC_OP_BCLR(ctr, (regs->CTR != 0)); -PPC_OP_BCLR(ctr_true, (regs->CTR != 0 && (T0 & PARAM(2)) != 0)); -PPC_OP_BCLR(ctr_false, (regs->CTR != 0 && (T0 & PARAM(2)) == 0)); -PPC_OP_BCLR(ctrz, (regs->CTR == 0)); -PPC_OP_BCLR(ctrz_true, (regs->CTR == 0 && (T0 & PARAM(2)) != 0)); -PPC_OP_BCLR(ctrz_false, (regs->CTR == 0 && (T0 & PARAM(2)) == 0)); +__PPC_OP_BC(blr_##name, cond, regs->lr & ~0x03); \ +__PPC_OP_BCLRL(blrl_##name, cond, regs->lr & ~0x03) + +__PPC_OP_B(blr, regs->lr & ~0x03); +PPC_OP(blrl) +{ + T0 = regs->lr & ~0x03; + regs->lr = PARAM(1); + TB_DO_JUMP(op_blrl, T1, 0, T0); + RETURN(); +} +PPC_OP_BCLR(ctr, (regs->ctr != 0)); +PPC_OP_BCLR(ctr_true, (regs->ctr != 0 && (T0 & PARAM(2)) != 0)); +PPC_OP_BCLR(ctr_false, (regs->ctr != 0 && (T0 & PARAM(2)) == 0)); +PPC_OP_BCLR(ctrz, (regs->ctr == 0)); +PPC_OP_BCLR(ctrz_true, (regs->ctr == 0 && (T0 & PARAM(2)) != 0)); +PPC_OP_BCLR(ctrz_false, (regs->ctr == 0 && (T0 & PARAM(2)) == 0)); PPC_OP_BCLR(true, ((T0 & PARAM(2)) != 0)); PPC_OP_BCLR(false, ((T0 & PARAM(2)) == 0)); /* CTR maintenance */ PPC_OP(dec_ctr) { - regs->CTR--; + regs->ctr--; RETURN(); } @@ -1077,7 +1239,7 @@ PPC_OP(slw) /* shift right algebraic word */ PPC_OP(sraw) { - Ts0 = do_sraw(Ts0, T1); + do_sraw(); RETURN(); } @@ -1106,313 +1268,280 @@ PPC_OP(srw) } /*** Floating-Point arithmetic ***/ - -/*** Floating-Point multiply-and-add ***/ - -/*** Floating-Point round & convert ***/ - -/*** Floating-Point compare ***/ - -/*** Floating-Point status & ctrl register ***/ - -/*** Integer load ***/ -#define ld16x(x) s_ext16(ld16(x)) -#define PPC_ILD_OPX(name, op) \ -PPC_OP(l##name##x_z) \ -{ \ - T1 = op(T0); \ - RETURN(); \ -} \ -PPC_OP(l##name##x) \ -{ \ - T0 += T1; \ - T1 = op(T0); \ - RETURN(); \ -} - -#define PPC_ILD_OP(name, op) \ -PPC_OP(l##name##_z) \ -{ \ - T1 = op(SPARAM(1)); \ - RETURN(); \ -} \ -PPC_OP(l##name) \ -{ \ - T0 += SPARAM(1); \ - T1 = op(T0); \ - RETURN(); \ -} \ -PPC_ILD_OPX(name, op) - -PPC_ILD_OP(bz, ld8); -PPC_ILD_OP(ha, ld16x); -PPC_ILD_OP(hz, ld16); -PPC_ILD_OP(wz, ld32); - -/*** Integer store ***/ -#define PPC_IST_OPX(name, op) \ -PPC_OP(st##name##x_z) \ -{ \ - op(T0, T1); \ - RETURN(); \ -} \ -PPC_OP(st##name##x) \ -{ \ - T0 += T1; \ - op(T0, T2); \ - RETURN(); \ -} - -#define PPC_IST_OP(name, op) \ -PPC_OP(st##name##_z) \ -{ \ - op(SPARAM(1), T0); \ - RETURN(); \ -} \ -PPC_OP(st##name) \ -{ \ - T0 += SPARAM(1); \ - op(T0, T1); \ - RETURN(); \ -} \ -PPC_IST_OPX(name, op); - -PPC_IST_OP(b, st8); -PPC_IST_OP(h, st16); -PPC_IST_OP(w, st32); - -/*** Integer load and store with byte reverse ***/ -PPC_ILD_OPX(hbr, ld16r); -PPC_ILD_OPX(wbr, ld32r); -PPC_IST_OPX(hbr, st16r); -PPC_IST_OPX(wbr, st32r); - -/*** Integer load and store multiple ***/ -PPC_OP(lmw) +/* fadd - fadd. */ +PPC_OP(fadd) { - do_lmw(PARAM(1), SPARAM(2) + T0); + FT0 += FT1; RETURN(); } -PPC_OP(stmw) +/* fadds - fadds. */ +PPC_OP(fadds) { - do_stmw(PARAM(1), SPARAM(2) + T0); + FTS0 += FTS1; RETURN(); } -/*** Integer load and store strings ***/ -PPC_OP(lswi) +/* fsub - fsub. */ +PPC_OP(fsub) { - do_lsw(PARAM(1), PARAM(2), T0); + FT0 -= FT1; RETURN(); } -PPC_OP(lswx) +/* fsubs - fsubs. */ +PPC_OP(fsubs) { - do_lsw(PARAM(1), T0, T1 + T2); + FTS0 -= FTS1; RETURN(); } -PPC_OP(stswi_z) +/* fmul - fmul. */ +PPC_OP(fmul) { - do_stsw(PARAM(1), PARAM(2), 0); + FT0 *= FT1; RETURN(); } -PPC_OP(stswi) +/* fmuls - fmuls. */ +PPC_OP(fmuls) { - do_stsw(PARAM(1), PARAM(2), T0); + FTS0 *= FTS1; RETURN(); } -PPC_OP(stswx_z) +/* fdiv - fdiv. */ +PPC_OP(fdiv) { - do_stsw(PARAM(1), T0, T1); + FT0 /= FT1; RETURN(); } -PPC_OP(stswx) +/* fdivs - fdivs. */ +PPC_OP(fdivs) { - do_stsw(PARAM(1), T0, T1 + T2); + FTS0 /= FTS1; RETURN(); } -/* SPR */ -PPC_OP(load_spr) +/* fsqrt - fsqrt. */ +PPC_OP(fsqrt) { - T0 = regs->spr[PARAM(1)]; + do_fsqrt(); + RETURN(); } -PPC_OP(store_spr) +/* fsqrts - fsqrts. */ +PPC_OP(fsqrts) { - regs->spr[PARAM(1)] = T0; + do_fsqrts(); + RETURN(); } -/*** Floating-point store ***/ - -PPC_OP(stfd_z_FT0) +/* fres - fres. */ +PPC_OP(fres) { - stfq((void *)SPARAM(1), FT0); + do_fres(); + RETURN(); } -PPC_OP(stfd_FT0) +/* frsqrte - frsqrte. */ +PPC_OP(frsqrte) { - T0 += SPARAM(1); - stfq((void *)T0, FT0); + do_fsqrte(); + RETURN(); } -PPC_OP(stfdx_z_FT0) +/* fsel - fsel. */ +PPC_OP(fsel) { - stfq((void *)T0, FT0); + do_fsel(); + RETURN(); } -PPC_OP(stfdx_FT0) +/*** Floating-Point multiply-and-add ***/ +/* fmadd - fmadd. */ +PPC_OP(fmadd) { - T0 += T1; - stfq((void *)T0, FT0); + FT0 = (FT0 * FT1) + FT2; + RETURN(); } -PPC_OP(stfs_z_FT0) +/* fmadds - fmadds. */ +PPC_OP(fmadds) { - float tmp = FT0; - stfl((void *)SPARAM(1), tmp); + FTS0 = (FTS0 * FTS1) + FTS2; + RETURN(); } -PPC_OP(stfs_FT0) +/* fmsub - fmsub. */ +PPC_OP(fmsub) { - float tmp = FT0; - T0 += SPARAM(1); - stfl((void *)T0, tmp); + FT0 = (FT0 * FT1) - FT2; + RETURN(); } -PPC_OP(stfsx_z_FT0) +/* fmsubs - fmsubs. */ +PPC_OP(fmsubs) { - float tmp = FT0; - stfl((void *)T0, tmp); + FTS0 = (FTS0 * FTS1) - FTS2; + RETURN(); } -PPC_OP(stfsx_FT0) +/* fnmadd - fnmadd. - fnmadds - fnmadds. */ +PPC_OP(fnmadd) { - float tmp = FT0; - T0 += T1; - stfl((void *)T0, tmp); + FT0 = -((FT0 * FT1) + FT2); + RETURN(); } -/*** Floating-point load ***/ -PPC_OP(lfd_z_FT0) +/* fnmadds - fnmadds. */ +PPC_OP(fnmadds) { - FT0 = ldfq((void *)SPARAM(1)); + FTS0 = -((FTS0 * FTS1) + FTS2); + RETURN(); } -PPC_OP(lfd_FT0) +/* fnmsub - fnmsub. */ +PPC_OP(fnmsub) { - T0 += SPARAM(1); - FT0 = ldfq((void *)T0); + FT0 = -((FT0 * FT1) - FT2); + RETURN(); } -PPC_OP(lfdx_z_FT0) +/* fnmsubs - fnmsubs. */ +PPC_OP(fnmsubs) { - FT0 = ldfq((void *)T0); + FTS0 = -((FTS0 * FTS1) - FTS2); + RETURN(); } -PPC_OP(lfdx_FT0) +/*** Floating-Point round & convert ***/ +/* frsp - frsp. */ +PPC_OP(frsp) { - T0 += T1; - FT0 = ldfq((void *)T0); + FT0 = FTS0; + RETURN(); } -PPC_OP(lfs_z_FT0) +/* fctiw - fctiw. */ +PPC_OP(fctiw) { - float tmp = ldfl((void *)SPARAM(1)); - FT0 = tmp; + do_fctiw(); + RETURN(); } -PPC_OP(lfs_FT0) +/* fctiwz - fctiwz. */ +PPC_OP(fctiwz) { - float tmp; - T0 += SPARAM(1); - tmp = ldfl((void *)T0); - FT0 = tmp; + do_fctiwz(); + RETURN(); } -PPC_OP(lfsx_z_FT0) + +/*** Floating-Point compare ***/ +/* fcmpu */ +PPC_OP(fcmpu) { - float tmp; - tmp = ldfl((void *)T0); - FT0 = tmp; + do_fcmpu(); + RETURN(); } -PPC_OP(lfsx_FT0) +/* fcmpo */ +PPC_OP(fcmpo) { - float tmp; - T0 += T1; - tmp = ldfl((void *)T0); - FT0 = tmp; + do_fcmpo(); + RETURN(); } -PPC_OP(lwarx_z) +/*** Floating-point move ***/ +/* fabs */ +PPC_OP(fabs) { - T1 = ld32(T0); - regs->reserve = T0; + do_fabs(); RETURN(); } -PPC_OP(lwarx) +/* fnabs */ +PPC_OP(fnabs) { - T0 += T1; - T1 = ld32(T0); - regs->reserve = T0; + do_fnabs(); RETURN(); } -PPC_OP(stwcx_z) +/* fneg */ +PPC_OP(fneg) { - if (regs->reserve != T0) { - env->crf[0] = xer_ov; - } else { - st32(T0, T1); - env->crf[0] = xer_ov | 0x02; - } - regs->reserve = 0; + FT0 = -FT0; RETURN(); } -PPC_OP(stwcx) +/* Load and store */ +#if defined(CONFIG_USER_ONLY) +#define MEMSUFFIX _raw +#include "op_mem.h" +#else +#define MEMSUFFIX _user +#include "op_mem.h" + +#define MEMSUFFIX _kernel +#include "op_mem.h" +#endif + +/* Return from interrupt */ +PPC_OP(rfi) { - T0 += T1; - if (regs->reserve != (T0 & ~0x03)) { - env->crf[0] = xer_ov; - } else { - st32(T0, T2); - env->crf[0] = xer_ov | 0x02; + T0 = regs->spr[SRR1] & ~0xFFFF0000; + do_store_msr(); + do_tlbia(); + dump_rfi(); + regs->nip = regs->spr[SRR0] & ~0x00000003; + if (env->exceptions != 0) { + do_check_exception_state(); } - regs->reserve = 0; RETURN(); } -PPC_OP(dcbz_z) +/* Trap word */ +PPC_OP(tw) { - do_dcbz(); + if ((Ts0 < Ts1 && (PARAM(1) & 0x10)) || + (Ts0 > Ts1 && (PARAM(1) & 0x08)) || + (Ts0 == Ts1 && (PARAM(1) & 0x04)) || + (T0 < T1 && (PARAM(1) & 0x02)) || + (T0 > T1 && (PARAM(1) & 0x01))) + do_queue_exception_err(EXCP_PROGRAM, EXCP_TRAP); RETURN(); } -PPC_OP(dcbz) +PPC_OP(twi) { - T0 += T1; - do_dcbz(); + if ((Ts0 < SPARAM(1) && (PARAM(2) & 0x10)) || + (Ts0 > SPARAM(1) && (PARAM(2) & 0x08)) || + (Ts0 == SPARAM(1) && (PARAM(2) & 0x04)) || + (T0 < (uint32_t)SPARAM(1) && (PARAM(2) & 0x02)) || + (T0 > (uint32_t)SPARAM(1) && (PARAM(2) & 0x01))) + do_queue_exception_err(EXCP_PROGRAM, EXCP_TRAP); RETURN(); } /* Instruction cache block invalidate */ -PPC_OP(icbi_z) +PPC_OP(icbi) { do_icbi(); RETURN(); } -PPC_OP(icbi) +/* tlbia */ +PPC_OP(tlbia) { - T0 += T1; - do_icbi(); + do_tlbia(); + RETURN(); +} + +/* tlbie */ +PPC_OP(tlbie) +{ + do_tlbie(); RETURN(); } diff --git a/target-ppc/op_helper.c b/target-ppc/op_helper.c new file mode 100644 index 0000000000..5d02dfabe7 --- /dev/null +++ b/target-ppc/op_helper.c @@ -0,0 +1,445 @@ +/* + * PPC emulation helpers for qemu. + * + * Copyright (c) 2003 Jocelyn Mayer + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ +#include +#include "exec.h" + +#if defined(CONFIG_USER_ONLY) +#define MEMSUFFIX _raw +#include "op_helper_mem.h" +#else +#define MEMSUFFIX _user +#include "op_helper_mem.h" +#define MEMSUFFIX _kernel +#include "op_helper_mem.h" +#endif + +/*****************************************************************************/ +/* Exceptions processing helpers */ +void do_queue_exception_err (uint32_t exception, int error_code) +{ + /* Queue real PPC exceptions */ + if (exception < EXCP_PPC_MAX) { + env->exceptions |= 1 << exception; + env->errors[exception] = error_code; + } else { + /* Preserve compatibility with qemu core */ + env->exceptions |= 1; + env->exception_index = exception; + env->error_code = error_code; + } +} + +void do_queue_exception (uint32_t exception) +{ + do_queue_exception_err(exception, 0); +} + +void do_check_exception_state (void) +{ + if ((env->exceptions & 1) == 1 || check_exception_state(env)) { + env->exceptions &= ~1; + cpu_loop_exit(); + } +} + +/*****************************************************************************/ +/* Helpers for "fat" micro operations */ +/* Special registers load and store */ +void do_load_cr (void) +{ + T0 = (env->crf[0] << 28) | + (env->crf[1] << 24) | + (env->crf[2] << 20) | + (env->crf[3] << 16) | + (env->crf[4] << 12) | + (env->crf[5] << 8) | + (env->crf[6] << 4) | + (env->crf[7] << 0); +} + +void do_store_cr (uint32_t mask) +{ + int i, sh; + + for (i = 0, sh = 7; i < 8; i++, sh --) { + if (mask & (1 << sh)) + env->crf[i] = (T0 >> (sh * 4)) & 0xF; + } +} + +void do_load_xer (void) +{ + T0 = (xer_so << XER_SO) | + (xer_ov << XER_OV) | + (xer_ca << XER_CA) | + (xer_bc << XER_BC); +} + +void do_store_xer (void) +{ + xer_so = (T0 >> XER_SO) & 0x01; + xer_ov = (T0 >> XER_OV) & 0x01; + xer_ca = (T0 >> XER_CA) & 0x01; + xer_bc = (T0 >> XER_BC) & 0x1f; +} + +void do_load_msr (void) +{ + T0 = (msr_pow << MSR_POW) | + (msr_ile << MSR_ILE) | + (msr_ee << MSR_EE) | + (msr_pr << MSR_PR) | + (msr_fp << MSR_FP) | + (msr_me << MSR_ME) | + (msr_fe0 << MSR_FE0) | + (msr_se << MSR_SE) | + (msr_be << MSR_BE) | + (msr_fe1 << MSR_FE1) | + (msr_ip << MSR_IP) | + (msr_ir << MSR_IR) | + (msr_dr << MSR_DR) | + (msr_ri << MSR_RI) | + (msr_le << MSR_LE); +} + +void do_store_msr (void) +{ + if (((T0 >> MSR_IR) & 0x01) != msr_ir || + ((T0 >> MSR_DR) & 0x01) != msr_dr || + ((T0 >> MSR_PR) & 0x01) != msr_pr) { + /* Flush all tlb when changing translation mode or privilege level */ + do_tlbia(); + } +#if 0 + if ((T0 >> MSR_IP) & 0x01) { + printf("Halting CPU. Stop emulation\n"); + do_queue_exception(EXCP_HLT); + cpu_loop_exit(); + } +#endif + msr_pow = (T0 >> MSR_POW) & 0x03; + msr_ile = (T0 >> MSR_ILE) & 0x01; + msr_ee = (T0 >> MSR_EE) & 0x01; + msr_pr = (T0 >> MSR_PR) & 0x01; + msr_fp = (T0 >> MSR_FP) & 0x01; + msr_me = (T0 >> MSR_ME) & 0x01; + msr_fe0 = (T0 >> MSR_FE0) & 0x01; + msr_se = (T0 >> MSR_SE) & 0x01; + msr_be = (T0 >> MSR_BE) & 0x01; + msr_fe1 = (T0 >> MSR_FE1) & 0x01; + msr_ip = (T0 >> MSR_IP) & 0x01; + msr_ir = (T0 >> MSR_IR) & 0x01; + msr_dr = (T0 >> MSR_DR) & 0x01; + msr_ri = (T0 >> MSR_RI) & 0x01; + msr_le = (T0 >> MSR_LE) & 0x01; +} + +/* shift right arithmetic helper */ +void do_sraw (void) +{ + int32_t ret; + + xer_ca = 0; + if (T1 & 0x20) { + ret = (-1) * (T0 >> 31); + if (ret < 0) + xer_ca = 1; + } else { + ret = (int32_t)T0 >> (T1 & 0x1f); + if (ret < 0 && ((int32_t)T0 & ((1 << T1) - 1)) != 0) + xer_ca = 1; + } + (int32_t)T0 = ret; +} + +/* Floating point operations helpers */ +void do_load_fpscr (void) +{ + /* The 32 MSB of the target fpr are undefined. + * They'll be zero... + */ + union { + double d; + struct { + uint32_t u[2]; + } s; + } u; + int i; + + u.s.u[0] = 0; + u.s.u[1] = 0; + for (i = 0; i < 8; i++) + u.s.u[1] |= env->fpscr[i] << (4 * i); + FT0 = u.d; +} + +void do_store_fpscr (uint32_t mask) +{ + /* + * We use only the 32 LSB of the incoming fpr + */ + union { + double d; + struct { + uint32_t u[2]; + } s; + } u; + int i; + + u.d = FT0; + if (mask & 0x80) + env->fpscr[0] = (env->fpscr[0] & 0x9) | ((u.s.u[1] >> 28) & ~0x9); + for (i = 1; i < 7; i++) { + if (mask & (1 << (7 - i))) + env->fpscr[i] = (u.s.u[1] >> (4 * (7 - i))) & 0xF; + } + /* TODO: update FEX & VX */ + /* Set rounding mode */ + switch (env->fpscr[0] & 0x3) { + case 0: + /* Best approximation (round to nearest) */ + fesetround(FE_TONEAREST); + break; + case 1: + /* Smaller magnitude (round toward zero) */ + fesetround(FE_TOWARDZERO); + break; + case 2: + /* Round toward +infinite */ + fesetround(FE_UPWARD); + break; + case 3: + /* Round toward -infinite */ + fesetround(FE_DOWNWARD); + break; + } +} + +void do_fctiw (void) +{ + union { + double d; + uint64_t i; + } *p = (void *)&FT1; + + if (FT0 > (double)0x7FFFFFFF) + p->i = 0x7FFFFFFFULL << 32; + else if (FT0 < -(double)0x80000000) + p->i = 0x80000000ULL << 32; + else + p->i = 0; + p->i |= (uint32_t)FT0; + FT0 = p->d; +} + +void do_fctiwz (void) +{ + union { + double d; + uint64_t i; + } *p = (void *)&FT1; + int cround = fegetround(); + + fesetround(FE_TOWARDZERO); + if (FT0 > (double)0x7FFFFFFF) + p->i = 0x7FFFFFFFULL << 32; + else if (FT0 < -(double)0x80000000) + p->i = 0x80000000ULL << 32; + else + p->i = 0; + p->i |= (uint32_t)FT0; + FT0 = p->d; + fesetround(cround); +} + +void do_fsqrt (void) +{ + FT0 = sqrt(FT0); +} + +void do_fsqrts (void) +{ + FT0 = (float)sqrt((float)FT0); +} + +void do_fres (void) +{ + FT0 = 1.0 / FT0; +} + +void do_fsqrte (void) +{ + FT0 = 1.0 / sqrt(FT0); +} + +void do_fsel (void) +{ + if (FT0 >= 0) + FT0 = FT2; + else + FT0 = FT1; +} + +void do_fcmpu (void) +{ + env->fpscr[4] &= ~0x1; + if (isnan(FT0) || isnan(FT1)) { + T0 = 0x01; + env->fpscr[4] |= 0x1; + env->fpscr[6] |= 0x1; + } else if (FT0 < FT1) { + T0 = 0x08; + } else if (FT0 > FT1) { + T0 = 0x04; + } else { + T0 = 0x02; + } + env->fpscr[3] |= T0; +} + +void do_fcmpo (void) +{ + env->fpscr[4] &= ~0x1; + if (isnan(FT0) || isnan(FT1)) { + T0 = 0x01; + env->fpscr[4] |= 0x1; + /* I don't know how to test "quiet" nan... */ + if (0 /* || ! quiet_nan(...) */) { + env->fpscr[6] |= 0x1; + if (!(env->fpscr[1] & 0x8)) + env->fpscr[4] |= 0x8; + } else { + env->fpscr[4] |= 0x8; + } + } else if (FT0 < FT1) { + T0 = 0x08; + } else if (FT0 > FT1) { + T0 = 0x04; + } else { + T0 = 0x02; + } + env->fpscr[3] |= T0; +} + +void do_fabs (void) +{ + FT0 = fabsl(FT0); +} + +void do_fnabs (void) +{ + FT0 = -fabsl(FT0); +} + +/* Instruction cache invalidation helper */ +void do_icbi (void) +{ + // tb_invalidate_page(T0); +} + +/* TLB invalidation helpers */ +void do_tlbia (void) +{ + tlb_flush(env); +} + +void do_tlbie (void) +{ + tlb_flush_page(env, T0); +} + +/*****************************************************************************/ +/* Special helpers for debug */ +void dump_rfi (void) +{ +#if 0 + printf("Return from interrupt\n"); + printf("nip=0x%08x LR=0x%08x CTR=0x%08x MSR=0x%08x\n", + env->nip, env->lr, env->ctr, + (msr_pow << MSR_POW) | (msr_ile << MSR_ILE) | (msr_ee << MSR_EE) | + (msr_pr << MSR_PR) | (msr_fp << MSR_FP) | (msr_me << MSR_ME) | + (msr_fe0 << MSR_FE0) | (msr_se << MSR_SE) | (msr_be << MSR_BE) | + (msr_fe1 << MSR_FE1) | (msr_ip << MSR_IP) | (msr_ir << MSR_IR) | + (msr_dr << MSR_DR) | (msr_ri << MSR_RI) | (msr_le << MSR_LE)); + { + int i; + for (i = 0; i < 32; i++) { + if ((i & 7) == 0) + printf("GPR%02d:", i); + printf(" %08x", env->gpr[i]); + if ((i & 7) == 7) + printf("\n"); + } + printf("CR: 0x"); + for (i = 0; i < 8; i++) + printf("%01x", env->crf[i]); + printf(" ["); + for (i = 0; i < 8; i++) { + char a = '-'; + if (env->crf[i] & 0x08) + a = 'L'; + else if (env->crf[i] & 0x04) + a = 'G'; + else if (env->crf[i] & 0x02) + a = 'E'; + printf(" %c%c", a, env->crf[i] & 0x01 ? 'O' : ' '); + } + printf(" ] "); + } + printf("TB: 0x%08x %08x\n", env->tb[1], env->tb[0]); + printf("SRR0 0x%08x SRR1 0x%08x\n", env->spr[SRR0], env->spr[SRR1]); +#endif +} + +void dump_store_sr (int srnum) +{ +#if 0 + printf("%s: reg=%d 0x%08x\n", __func__, srnum, T0); +#endif +} + +static void _dump_store_bat (char ID, int ul, int nr) +{ + printf("Set %cBAT%d%c to 0x%08x (0x%08x)\n", + ID, nr, ul == 0 ? 'u' : 'l', T0, env->nip); +} + +void dump_store_ibat (int ul, int nr) +{ + _dump_store_bat('I', ul, nr); +} + +void dump_store_dbat (int ul, int nr) +{ + _dump_store_bat('D', ul, nr); +} + +void dump_store_tb (int ul) +{ + printf("Set TB%c to 0x%08x\n", ul == 0 ? 'L' : 'U', T0); +} + +void dump_update_tb(uint32_t param) +{ +#if 0 + printf("Update TB: 0x%08x + %d => 0x%08x\n", T1, param, T0); +#endif +} + diff --git a/target-ppc/op_helper_mem.h b/target-ppc/op_helper_mem.h new file mode 100644 index 0000000000..6c20273195 --- /dev/null +++ b/target-ppc/op_helper_mem.h @@ -0,0 +1,44 @@ +void glue(do_lsw, MEMSUFFIX) (int dst) +{ + uint32_t tmp; + int sh; + + if (loglevel > 0) { + fprintf(logfile, "%s: addr=0x%08x count=%d reg=%d\n", + __func__, T0, T1, dst); + } + for (; T1 > 3; T1 -= 4, T0 += 4) { + ugpr(dst++) = glue(_ldl, MEMSUFFIX)((void *)T0, ACCESS_INT); + if (dst == 32) + dst = 0; + } + if (T1 > 0) { + tmp = 0; + for (sh = 24; T1 > 0; T1--, T0++, sh -= 8) { + tmp |= glue(_ldub, MEMSUFFIX)((void *)T0, ACCESS_INT) << sh; + } + ugpr(dst) = tmp; + } +} + +void glue(do_stsw, MEMSUFFIX) (int src) +{ + int sh; + + if (loglevel > 0) { + fprintf(logfile, "%s: addr=0x%08x count=%d reg=%d\n", + __func__, T0, T1, src); + } + for (; T1 > 3; T1 -= 4, T0 += 4) { + glue(_stl, MEMSUFFIX)((void *)T0, ugpr(src++), ACCESS_INT); + if (src == 32) + src = 0; + } + if (T1 > 0) { + for (sh = 24; T1 > 0; T1--, T0++, sh -= 8) + glue(_stb, MEMSUFFIX)((void *)T0, (ugpr(src) >> sh) & 0xFF, + ACCESS_INT); + } +} + +#undef MEMSUFFIX diff --git a/target-ppc/op_mem.h b/target-ppc/op_mem.h new file mode 100644 index 0000000000..2a50f84f42 --- /dev/null +++ b/target-ppc/op_mem.h @@ -0,0 +1,187 @@ +/* External helpers */ +void glue(do_lsw, MEMSUFFIX) (int dst); +void glue(do_stsw, MEMSUFFIX) (int src); + +/* Internal helpers for sign extension and byte-reverse */ +static inline uint32_t glue(_ld16x, MEMSUFFIX) (void *EA, int type) +{ + return s_ext16(glue(_lduw, MEMSUFFIX)(EA, type)); +} + +static inline uint16_t glue(_ld16r, MEMSUFFIX) (void *EA, int type) +{ + uint16_t tmp = glue(_lduw, MEMSUFFIX)(EA, type); + return ((tmp & 0xFF00) >> 8) | ((tmp & 0x00FF) << 8); +} + +static inline uint32_t glue(_ld32r, MEMSUFFIX) (void *EA, int type) +{ + uint32_t tmp = glue(_ldl, MEMSUFFIX)(EA, type); + return ((tmp & 0xFF000000) >> 24) | ((tmp & 0x00FF0000) >> 8) | + ((tmp & 0x0000FF00) << 8) | ((tmp & 0x000000FF) << 24); +} + +static inline void glue(_st16r, MEMSUFFIX) (void *EA, uint16_t data, int type) +{ + uint16_t tmp = ((data & 0xFF00) >> 8) | ((data & 0x00FF) << 8); + glue(_stw, MEMSUFFIX)(EA, tmp, type); +} + +static inline void glue(_st32r, MEMSUFFIX) (void *EA, uint32_t data, int type) +{ + uint32_t tmp = ((data & 0xFF000000) >> 24) | ((data & 0x00FF0000) >> 8) | + ((data & 0x0000FF00) << 8) | ((data & 0x000000FF) << 24); + glue(_stl, MEMSUFFIX)(EA, tmp, type); +} + +/*** Integer load ***/ +#define PPC_LD_OP(name, op) \ +PPC_OP(glue(glue(l, name), MEMSUFFIX)) \ +{ \ + T1 = glue(op, MEMSUFFIX)((void *)T0, ACCESS_INT); \ + RETURN(); \ +} + +#define PPC_ST_OP(name, op) \ +PPC_OP(glue(glue(st, name), MEMSUFFIX)) \ +{ \ + glue(op, MEMSUFFIX)((void *)T0, T1, ACCESS_INT); \ + RETURN(); \ +} + +PPC_LD_OP(bz, _ldub); +PPC_LD_OP(ha, _ld16x); +PPC_LD_OP(hz, _lduw); +PPC_LD_OP(wz, _ldl); + +/*** Integer store ***/ +PPC_ST_OP(b, _stb); +PPC_ST_OP(h, _stw); +PPC_ST_OP(w, _stl); + +/*** Integer load and store with byte reverse ***/ +PPC_LD_OP(hbr, _ld16r); +PPC_LD_OP(wbr, _ld32r); +PPC_ST_OP(hbr, _st16r); +PPC_ST_OP(wbr, _st32r); + +/*** Integer load and store multiple ***/ +PPC_OP(glue(lmw, MEMSUFFIX)) +{ + int dst = PARAM(1); + + for (; dst < 32; dst++, T0 += 4) { + ugpr(dst) = glue(_ldl, MEMSUFFIX)((void *)T0, ACCESS_INT); + } + RETURN(); +} + +PPC_OP(glue(stmw, MEMSUFFIX)) +{ + int src = PARAM(1); + + for (; src < 32; src++, T0 += 4) { + glue(_stl, MEMSUFFIX)((void *)T0, ugpr(src), ACCESS_INT); + } + RETURN(); +} + +/*** Integer load and store strings ***/ +PPC_OP(glue(lswi, MEMSUFFIX)) +{ + glue(do_lsw, MEMSUFFIX)(PARAM(1)); + RETURN(); +} + +/* PPC32 specification says we must generate an exception if + * rA is in the range of registers to be loaded. + * In an other hand, IBM says this is valid, but rA won't be loaded. + * For now, I'll follow the spec... + */ +PPC_OP(glue(lswx, MEMSUFFIX)) +{ + if (T1 > 0) { + if ((PARAM(1) < PARAM(2) && (PARAM(1) + T1) > PARAM(2)) || + (PARAM(1) < PARAM(3) && (PARAM(1) + T1) > PARAM(3))) { + do_queue_exception_err(EXCP_PROGRAM, EXCP_INVAL | EXCP_INVAL_LSWX); + do_process_exceptions(); + } else { + glue(do_lsw, MEMSUFFIX)(PARAM(1)); + } + } + RETURN(); +} + +PPC_OP(glue(stsw, MEMSUFFIX)) +{ + glue(do_stsw, MEMSUFFIX)(PARAM(1)); + RETURN(); +} + +/*** Floating-point store ***/ +#define PPC_STF_OP(name, op) \ +PPC_OP(glue(glue(st, name), MEMSUFFIX)) \ +{ \ + glue(op, MEMSUFFIX)((void *)T0, FT1); \ + RETURN(); \ +} + +PPC_STF_OP(fd, stfq); +PPC_STF_OP(fs, stfl); + +/*** Floating-point load ***/ +#define PPC_LDF_OP(name, op) \ +PPC_OP(glue(glue(l, name), MEMSUFFIX)) \ +{ \ + FT1 = glue(op, MEMSUFFIX)((void *)T0); \ + RETURN(); \ +} + +PPC_LDF_OP(fd, ldfq); +PPC_LDF_OP(fs, ldfl); + +/* Store with reservation */ +PPC_OP(glue(stwcx, MEMSUFFIX)) +{ + if (T0 & 0x03) { + do_queue_exception(EXCP_ALIGN); + do_process_exceptions(); + } else { + if (regs->reserve != T0) { + env->crf[0] = xer_ov; + } else { + glue(_stl, MEMSUFFIX)((void *)T0, T1, ACCESS_RES); + env->crf[0] = xer_ov | 0x02; + } + } + regs->reserve = 0; + RETURN(); +} + +PPC_OP(glue(dcbz, MEMSUFFIX)) +{ + glue(_stl, MEMSUFFIX)((void *)(T0 + 0x00), 0, ACCESS_INT); + glue(_stl, MEMSUFFIX)((void *)(T0 + 0x04), 0, ACCESS_INT); + glue(_stl, MEMSUFFIX)((void *)(T0 + 0x08), 0, ACCESS_INT); + glue(_stl, MEMSUFFIX)((void *)(T0 + 0x0C), 0, ACCESS_INT); + glue(_stl, MEMSUFFIX)((void *)(T0 + 0x10), 0, ACCESS_INT); + glue(_stl, MEMSUFFIX)((void *)(T0 + 0x14), 0, ACCESS_INT); + glue(_stl, MEMSUFFIX)((void *)(T0 + 0x18), 0, ACCESS_INT); + glue(_stl, MEMSUFFIX)((void *)(T0 + 0x1C), 0, ACCESS_INT); + RETURN(); +} + +/* External access */ +PPC_OP(glue(eciwx, MEMSUFFIX)) +{ + T1 = glue(_ldl, MEMSUFFIX)((void *)T0, ACCESS_EXT); + RETURN(); +} + +PPC_OP(glue(ecowx, MEMSUFFIX)) +{ + glue(_stl, MEMSUFFIX)((void *)T0, T1, ACCESS_EXT); + RETURN(); +} + +#undef MEMSUFFIX diff --git a/target-ppc/op_template.h b/target-ppc/op_template.h index 4a849ffea4..5ba4dfcbea 100644 --- a/target-ppc/op_template.h +++ b/target-ppc/op_template.h @@ -18,56 +18,67 @@ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ +/* General purpose registers moves */ void OPPROTO glue(op_load_gpr_T0_gpr, REG)(void) { T0 = regs->gpr[REG]; + RETURN(); } void OPPROTO glue(op_load_gpr_T1_gpr, REG)(void) { T1 = regs->gpr[REG]; + RETURN(); } void OPPROTO glue(op_load_gpr_T2_gpr, REG)(void) { T2 = regs->gpr[REG]; + RETURN(); } void OPPROTO glue(op_store_T0_gpr_gpr, REG)(void) { regs->gpr[REG] = T0; + RETURN(); } void OPPROTO glue(op_store_T1_gpr_gpr, REG)(void) { regs->gpr[REG] = T1; + RETURN(); } void OPPROTO glue(op_store_T2_gpr_gpr, REG)(void) { regs->gpr[REG] = T2; + RETURN(); } #if REG <= 7 - +/* Condition register moves */ void OPPROTO glue(op_load_crf_T0_crf, REG)(void) { T0 = regs->crf[REG]; + RETURN(); } void OPPROTO glue(op_load_crf_T1_crf, REG)(void) { T1 = regs->crf[REG]; + RETURN(); } void OPPROTO glue(op_store_T0_crf_crf, REG)(void) { regs->crf[REG] = T0; + RETURN(); } void OPPROTO glue(op_store_T1_crf_crf, REG)(void) { regs->crf[REG] = T1; + RETURN(); } /* Floating point condition and status register moves */ @@ -117,8 +128,6 @@ void OPPROTO glue(op_clear_fpscr_fpscr, REG)(void) #endif /* REG <= 7 */ -/* float moves */ - /* floating point registers moves */ void OPPROTO glue(op_load_fpr_FT0_fpr, REG)(void) { @@ -156,4 +165,22 @@ void OPPROTO glue(op_store_FT2_fpr_fpr, REG)(void) RETURN(); } +#if REG <= 15 +/* Segment register moves */ +void OPPROTO glue(op_load_sr, REG)(void) +{ + T0 = env->sr[REG]; + RETURN(); +} + +void OPPROTO glue(op_store_sr, REG)(void) +{ +#if defined (DEBUG_OP) + dump_store_sr(REG); +#endif + env->sr[REG] = T0; + RETURN(); +} +#endif + #undef REG diff --git a/target-ppc/translate.c b/target-ppc/translate.c index 60b511c191..34f92bd16d 100644 --- a/target-ppc/translate.c +++ b/target-ppc/translate.c @@ -24,6 +24,7 @@ //#define DO_SINGLE_STEP //#define DO_STEP_FLUSH +//#define DEBUG_DISAS enum { #define DEF(s, n, copy_size) INDEX_op_ ## s, @@ -37,41 +38,49 @@ static uint32_t *gen_opparam_ptr; #include "gen-op.h" -typedef void (GenOpFunc)(void); -typedef void (GenOpFunc1)(long); -typedef void (GenOpFunc2)(long, long); -typedef void (GenOpFunc3)(long, long, long); - #define GEN8(func, NAME) \ -static GenOpFunc *NAME ## _table [8] = {\ -NAME ## 0, NAME ## 1, NAME ## 2, NAME ## 3,\ -NAME ## 4, NAME ## 5, NAME ## 6, NAME ## 7,\ -};\ -static inline void func(int n)\ -{\ - NAME ## _table[n]();\ +static GenOpFunc *NAME ## _table [8] = { \ +NAME ## 0, NAME ## 1, NAME ## 2, NAME ## 3, \ +NAME ## 4, NAME ## 5, NAME ## 6, NAME ## 7, \ +}; \ +static inline void func(int n) \ +{ \ + NAME ## _table[n](); \ +} + +#define GEN16(func, NAME) \ +static GenOpFunc *NAME ## _table [16] = { \ +NAME ## 0, NAME ## 1, NAME ## 2, NAME ## 3, \ +NAME ## 4, NAME ## 5, NAME ## 6, NAME ## 7, \ +NAME ## 8, NAME ## 9, NAME ## 10, NAME ## 11, \ +NAME ## 12, NAME ## 13, NAME ## 14, NAME ## 15, \ +}; \ +static inline void func(int n) \ +{ \ + NAME ## _table[n](); \ } #define GEN32(func, NAME) \ -static GenOpFunc *NAME ## _table [32] = {\ -NAME ## 0, NAME ## 1, NAME ## 2, NAME ## 3,\ -NAME ## 4, NAME ## 5, NAME ## 6, NAME ## 7,\ -NAME ## 8, NAME ## 9, NAME ## 10, NAME ## 11,\ -NAME ## 12, NAME ## 13, NAME ## 14, NAME ## 15,\ -NAME ## 16, NAME ## 17, NAME ## 18, NAME ## 19,\ -NAME ## 20, NAME ## 21, NAME ## 22, NAME ## 23,\ -NAME ## 24, NAME ## 25, NAME ## 26, NAME ## 27,\ -NAME ## 28, NAME ## 29, NAME ## 30, NAME ## 31,\ -};\ -static inline void func(int n)\ -{\ - NAME ## _table[n]();\ -} - -GEN8(gen_op_load_crf_T0, gen_op_load_crf_T0_crf) -GEN8(gen_op_load_crf_T1, gen_op_load_crf_T1_crf) -GEN8(gen_op_store_T0_crf, gen_op_store_T0_crf_crf) -GEN8(gen_op_store_T1_crf, gen_op_store_T1_crf_crf) +static GenOpFunc *NAME ## _table [32] = { \ +NAME ## 0, NAME ## 1, NAME ## 2, NAME ## 3, \ +NAME ## 4, NAME ## 5, NAME ## 6, NAME ## 7, \ +NAME ## 8, NAME ## 9, NAME ## 10, NAME ## 11, \ +NAME ## 12, NAME ## 13, NAME ## 14, NAME ## 15, \ +NAME ## 16, NAME ## 17, NAME ## 18, NAME ## 19, \ +NAME ## 20, NAME ## 21, NAME ## 22, NAME ## 23, \ +NAME ## 24, NAME ## 25, NAME ## 26, NAME ## 27, \ +NAME ## 28, NAME ## 29, NAME ## 30, NAME ## 31, \ +}; \ +static inline void func(int n) \ +{ \ + NAME ## _table[n](); \ +} + +/* Condition register moves */ +GEN8(gen_op_load_crf_T0, gen_op_load_crf_T0_crf); +GEN8(gen_op_load_crf_T1, gen_op_load_crf_T1_crf); +GEN8(gen_op_store_T0_crf, gen_op_store_T0_crf_crf); +GEN8(gen_op_store_T1_crf, gen_op_store_T1_crf_crf); /* Floating point condition and status register moves */ GEN8(gen_op_load_fpscr_T0, gen_op_load_fpscr_T0_fpscr); @@ -92,13 +101,18 @@ static inline void gen_op_store_T0_fpscri(int n, uint8_t param) (*gen_op_store_T0_fpscri_fpscr_table[n])(param); } -GEN32(gen_op_load_gpr_T0, gen_op_load_gpr_T0_gpr) -GEN32(gen_op_load_gpr_T1, gen_op_load_gpr_T1_gpr) -GEN32(gen_op_load_gpr_T2, gen_op_load_gpr_T2_gpr) +/* Segment register moves */ +GEN16(gen_op_load_sr, gen_op_load_sr); +GEN16(gen_op_store_sr, gen_op_store_sr); -GEN32(gen_op_store_T0_gpr, gen_op_store_T0_gpr_gpr) -GEN32(gen_op_store_T1_gpr, gen_op_store_T1_gpr_gpr) -GEN32(gen_op_store_T2_gpr, gen_op_store_T2_gpr_gpr) +/* General purpose registers moves */ +GEN32(gen_op_load_gpr_T0, gen_op_load_gpr_T0_gpr); +GEN32(gen_op_load_gpr_T1, gen_op_load_gpr_T1_gpr); +GEN32(gen_op_load_gpr_T2, gen_op_load_gpr_T2_gpr); + +GEN32(gen_op_store_T0_gpr, gen_op_store_T0_gpr_gpr); +GEN32(gen_op_store_T1_gpr, gen_op_store_T1_gpr_gpr); +GEN32(gen_op_store_T2_gpr, gen_op_store_T2_gpr_gpr); /* floating point registers moves */ GEN32(gen_op_load_fpr_FT0, gen_op_load_fpr_FT0_fpr); @@ -115,53 +129,51 @@ typedef struct DisasContext { struct TranslationBlock *tb; uint32_t *nip; uint32_t opcode; - int exception; - int retcode; - /* Time base */ + uint32_t exception; + /* Time base offset */ uint32_t tb_offset; + /* Decrementer offset */ + uint32_t decr_offset; + /* Execution mode */ +#if !defined(CONFIG_USER_ONLY) int supervisor; +#endif + /* Routine used to access memory */ + int mem_idx; } DisasContext; typedef struct opc_handler_t { /* invalid bits */ uint32_t inval; + /* instruction type */ + uint32_t type; /* handler */ void (*handler)(DisasContext *ctx); } opc_handler_t; -#define SET_RETVAL(n) \ +#define RET_EXCP(excp, error) \ do { \ - if ((n) != 0) { \ - ctx->exception = (n); \ - } \ + gen_op_queue_exception_err(excp, error); \ + ctx->exception = excp; \ return; \ } while (0) -#define GET_RETVAL(func, __opcode) \ -({ \ - (func)(&ctx); \ - ctx.exception; \ -}) +#define RET_INVAL() \ +RET_EXCP(EXCP_PROGRAM, EXCP_INVAL | EXCP_INVAL_INVAL) + +#define RET_PRIVOPC() \ +RET_EXCP(EXCP_PROGRAM, EXCP_INVAL | EXCP_PRIV_OPC) + +#define RET_PRIVREG() \ +RET_EXCP(EXCP_PROGRAM, EXCP_INVAL | EXCP_PRIV_REG) #define GEN_HANDLER(name, opc1, opc2, opc3, inval, type) \ static void gen_##name (DisasContext *ctx); \ GEN_OPCODE(name, opc1, opc2, opc3, inval, type); \ static void gen_##name (DisasContext *ctx) -/* Instruction types */ -enum { - PPC_INTEGER = 0x0001, /* CPU has integer operations instructions */ - PPC_FLOAT = 0x0002, /* CPU has floating point operations instructions */ - PPC_FLOW = 0x0004, /* CPU has flow control instructions */ - PPC_MEM = 0x0008, /* CPU has virtual memory instructions */ - PPC_MISC = 0x0010, /* CPU has spr/msr access instructions */ - PPC_EXTERN = 0x0020, /* CPU has external control instructions */ - PPC_SEGMENT = 0x0040, /* CPU has memory segment instructions */ -}; - typedef struct opcode_t { unsigned char opc1, opc2, opc3; - uint32_t type; opc_handler_t handler; } opcode_t; @@ -169,9 +181,6 @@ typedef struct opcode_t { extern FILE *logfile; extern int loglevel; -/* XXX: shouldn't stay all alone here ! */ -static int reserve = 0; - /*** Instruction decoding ***/ #define EXTRACT_HELPER(name, shift, nb) \ static inline uint32_t name (uint32_t opcode) \ @@ -272,9 +281,9 @@ static opcode_t opc_##name = { \ .opc1 = op1, \ .opc2 = op2, \ .opc3 = op3, \ - .type = _typ, \ .handler = { \ .inval = invl, \ + .type = _typ, \ .handler = &gen_##name, \ }, \ } @@ -285,9 +294,9 @@ static opcode_t opc_##name = { \ .opc1 = 0xFF, \ .opc2 = 0xFF, \ .opc3 = 0xFF, \ - .type = 0x00, \ .handler = { \ .inval = 0x00000000, \ + .type = 0x00, \ .handler = NULL, \ }, \ } @@ -296,15 +305,36 @@ static opcode_t opc_##name = { \ GEN_OPCODE_MARK(start); /* Invalid instruction */ -GEN_HANDLER(invalid, 0x00, 0x00, 0x00, 0xFFFFFFFF, 0) +GEN_HANDLER(invalid, 0x00, 0x00, 0x00, 0xFFFFFFFF, PPC_NONE) +{ + RET_INVAL(); +} + +/* Special opcode to stop emulation */ +GEN_HANDLER(stop, 0x06, 0x00, 0xFF, 0x03FFFFC1, PPC_COMMON) { - /* Branch to next instruction to force nip update */ - gen_op_b((uint32_t)ctx->nip); - SET_RETVAL(EXCP_INVAL); + gen_op_queue_exception(EXCP_HLT); + ctx->exception = EXCP_HLT; +} + +/* Special opcode to call open-firmware */ +GEN_HANDLER(of_enter, 0x06, 0x01, 0xFF, 0x03FFFFC1, PPC_COMMON) +{ + gen_op_queue_exception(EXCP_OFCALL); + ctx->exception = EXCP_OFCALL; +} + +/* Special opcode to call RTAS */ +GEN_HANDLER(rtas_enter, 0x06, 0x02, 0xFF, 0x03FFFFC1, PPC_COMMON) +{ + printf("RTAS entry point !\n"); + gen_op_queue_exception(EXCP_RTASCALL); + ctx->exception = EXCP_RTASCALL; } static opc_handler_t invalid_handler = { .inval = 0xFFFFFFFF, + .type = PPC_NONE, .handler = gen_invalid, }; @@ -318,7 +348,6 @@ GEN_HANDLER(name, opc1, opc2, opc3, inval, PPC_INTEGER) \ if (Rc(ctx->opcode) != 0) \ gen_op_set_Rc0(); \ gen_op_store_T0_gpr(rD(ctx->opcode)); \ - SET_RETVAL(0); \ } #define __GEN_INT_ARITH2_O(name, opc1, opc2, opc3, inval) \ @@ -330,7 +359,6 @@ GEN_HANDLER(name, opc1, opc2, opc3, inval, PPC_INTEGER) \ if (Rc(ctx->opcode) != 0) \ gen_op_set_Rc0_ov(); \ gen_op_store_T0_gpr(rD(ctx->opcode)); \ - SET_RETVAL(0); \ } #define __GEN_INT_ARITH1(name, opc1, opc2, opc3) \ @@ -341,7 +369,6 @@ GEN_HANDLER(name, opc1, opc2, opc3, 0x0000F800, PPC_INTEGER) \ if (Rc(ctx->opcode) != 0) \ gen_op_set_Rc0(); \ gen_op_store_T0_gpr(rD(ctx->opcode)); \ - SET_RETVAL(0); \ } #define __GEN_INT_ARITH1_O(name, opc1, opc2, opc3) \ GEN_HANDLER(name, opc1, opc2, opc3, 0x0000F800, PPC_INTEGER) \ @@ -351,7 +378,6 @@ GEN_HANDLER(name, opc1, opc2, opc3, 0x0000F800, PPC_INTEGER) \ if (Rc(ctx->opcode) != 0) \ gen_op_set_Rc0_ov(); \ gen_op_store_T0_gpr(rD(ctx->opcode)); \ - SET_RETVAL(0); \ } /* Two operands arithmetic functions */ @@ -412,7 +438,6 @@ GEN_HANDLER(addi, 0x0E, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) gen_op_addi(simm); } gen_op_store_T0_gpr(rD(ctx->opcode)); - SET_RETVAL(0); } /* addic */ GEN_HANDLER(addic, 0x0C, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) @@ -420,7 +445,6 @@ GEN_HANDLER(addic, 0x0C, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) gen_op_load_gpr_T0(rA(ctx->opcode)); gen_op_addic(SIMM(ctx->opcode)); gen_op_store_T0_gpr(rD(ctx->opcode)); - SET_RETVAL(0); } /* addic. */ GEN_HANDLER(addic_, 0x0D, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) @@ -429,7 +453,6 @@ GEN_HANDLER(addic_, 0x0D, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) gen_op_addic(SIMM(ctx->opcode)); gen_op_set_Rc0(); gen_op_store_T0_gpr(rD(ctx->opcode)); - SET_RETVAL(0); } /* addis */ GEN_HANDLER(addis, 0x0F, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) @@ -443,7 +466,6 @@ GEN_HANDLER(addis, 0x0F, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) gen_op_addi(simm << 16); } gen_op_store_T0_gpr(rD(ctx->opcode)); - SET_RETVAL(0); } /* mulli */ GEN_HANDLER(mulli, 0x07, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) @@ -451,7 +473,6 @@ GEN_HANDLER(mulli, 0x07, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) gen_op_load_gpr_T0(rA(ctx->opcode)); gen_op_mulli(SIMM(ctx->opcode)); gen_op_store_T0_gpr(rD(ctx->opcode)); - SET_RETVAL(0); } /* subfic */ GEN_HANDLER(subfic, 0x08, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) @@ -459,7 +480,6 @@ GEN_HANDLER(subfic, 0x08, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) gen_op_load_gpr_T0(rA(ctx->opcode)); gen_op_subfic(SIMM(ctx->opcode)); gen_op_store_T0_gpr(rD(ctx->opcode)); - SET_RETVAL(0); } /*** Integer comparison ***/ @@ -470,7 +490,6 @@ GEN_HANDLER(name, 0x1F, 0x00, opc, 0x00400000, PPC_INTEGER) \ gen_op_load_gpr_T1(rB(ctx->opcode)); \ gen_op_##name(); \ gen_op_store_T0_crf(crfD(ctx->opcode)); \ - SET_RETVAL(0); \ } /* cmp */ @@ -481,7 +500,6 @@ GEN_HANDLER(cmpi, 0x0B, 0xFF, 0xFF, 0x00400000, PPC_INTEGER) gen_op_load_gpr_T0(rA(ctx->opcode)); gen_op_cmpi(SIMM(ctx->opcode)); gen_op_store_T0_crf(crfD(ctx->opcode)); - SET_RETVAL(0); } /* cmpl */ GEN_CMP(cmpl, 0x01); @@ -491,7 +509,6 @@ GEN_HANDLER(cmpli, 0x0A, 0xFF, 0xFF, 0x00400000, PPC_INTEGER) gen_op_load_gpr_T0(rA(ctx->opcode)); gen_op_cmpli(UIMM(ctx->opcode)); gen_op_store_T0_crf(crfD(ctx->opcode)); - SET_RETVAL(0); } /*** Integer logical ***/ @@ -504,7 +521,6 @@ GEN_HANDLER(name, 0x1F, opc2, opc3, 0x00000000, PPC_INTEGER) \ if (Rc(ctx->opcode) != 0) \ gen_op_set_Rc0(); \ gen_op_store_T0_gpr(rA(ctx->opcode)); \ - SET_RETVAL(0); \ } #define GEN_LOGICAL2(name, opc) \ __GEN_LOGICAL2(name, 0x1C, opc) @@ -517,7 +533,6 @@ GEN_HANDLER(name, 0x1F, 0x1A, opc, 0x00000000, PPC_INTEGER) \ if (Rc(ctx->opcode) != 0) \ gen_op_set_Rc0(); \ gen_op_store_T0_gpr(rA(ctx->opcode)); \ - SET_RETVAL(0); \ } /* and & and. */ @@ -531,7 +546,6 @@ GEN_HANDLER(andi_, 0x1C, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) gen_op_andi_(UIMM(ctx->opcode)); gen_op_set_Rc0(); gen_op_store_T0_gpr(rA(ctx->opcode)); - SET_RETVAL(0); } /* andis. */ GEN_HANDLER(andis_, 0x1D, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) @@ -540,7 +554,6 @@ GEN_HANDLER(andis_, 0x1D, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) gen_op_andi_(UIMM(ctx->opcode) << 16); gen_op_set_Rc0(); gen_op_store_T0_gpr(rA(ctx->opcode)); - SET_RETVAL(0); } /* cntlzw */ @@ -555,68 +568,94 @@ GEN_LOGICAL1(extsh, 0x1C); GEN_LOGICAL2(nand, 0x0E); /* nor & nor. */ GEN_LOGICAL2(nor, 0x03); + /* or & or. */ -GEN_LOGICAL2(or, 0x0D); +GEN_HANDLER(or, 0x1F, 0x1C, 0x0D, 0x00000000, PPC_INTEGER) +{ + gen_op_load_gpr_T0(rS(ctx->opcode)); + /* Optimisation for mr case */ + if (rS(ctx->opcode) != rB(ctx->opcode)) { + gen_op_load_gpr_T1(rB(ctx->opcode)); + gen_op_or(); + } + if (Rc(ctx->opcode) != 0) + gen_op_set_Rc0(); + gen_op_store_T0_gpr(rA(ctx->opcode)); +} + /* orc & orc. */ GEN_LOGICAL2(orc, 0x0C); /* xor & xor. */ -GEN_LOGICAL2(xor, 0x09); +GEN_HANDLER(xor, 0x1F, 0x1C, 0x09, 0x00000000, PPC_INTEGER) +{ + gen_op_load_gpr_T0(rS(ctx->opcode)); + /* Optimisation for "set to zero" case */ + if (rS(ctx->opcode) != rB(ctx->opcode)) { + gen_op_load_gpr_T1(rB(ctx->opcode)); + gen_op_xor(); + } else { + gen_op_set_T0(0); + } + if (Rc(ctx->opcode) != 0) + gen_op_set_Rc0(); + gen_op_store_T0_gpr(rA(ctx->opcode)); +} /* ori */ GEN_HANDLER(ori, 0x18, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) { uint32_t uimm = UIMM(ctx->opcode); -#if 0 - if (uimm == 0) { - if (rA(ctx->opcode) != rS(ctx->opcode)) { - gen_op_load_gpr_T0(rS(ctx->opcode)); - gen_op_store_T0_gpr(rA(ctx->opcode)); + if (rS(ctx->opcode) == rA(ctx->opcode) && uimm == 0) { + /* NOP */ + return; } - } else -#endif - { gen_op_load_gpr_T0(rS(ctx->opcode)); + if (uimm != 0) gen_op_ori(uimm); gen_op_store_T0_gpr(rA(ctx->opcode)); - } - SET_RETVAL(0); } /* oris */ GEN_HANDLER(oris, 0x19, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) { uint32_t uimm = UIMM(ctx->opcode); -#if 0 - if (uimm == 0) { - if (rA(ctx->opcode) != rS(ctx->opcode)) { - gen_op_load_gpr_T0(rS(ctx->opcode)); - gen_op_store_T0_gpr(rA(ctx->opcode)); + if (rS(ctx->opcode) == rA(ctx->opcode) && uimm == 0) { + /* NOP */ + return; } - } else -#endif - { gen_op_load_gpr_T0(rS(ctx->opcode)); + if (uimm != 0) gen_op_ori(uimm << 16); gen_op_store_T0_gpr(rA(ctx->opcode)); - } - SET_RETVAL(0); } /* xori */ GEN_HANDLER(xori, 0x1A, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) { + uint32_t uimm = UIMM(ctx->opcode); + + if (rS(ctx->opcode) == rA(ctx->opcode) && uimm == 0) { + /* NOP */ + return; + } gen_op_load_gpr_T0(rS(ctx->opcode)); + if (uimm != 0) gen_op_xori(UIMM(ctx->opcode)); gen_op_store_T0_gpr(rA(ctx->opcode)); - SET_RETVAL(0); } /* xoris */ GEN_HANDLER(xoris, 0x1B, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) { + uint32_t uimm = UIMM(ctx->opcode); + + if (rS(ctx->opcode) == rA(ctx->opcode) && uimm == 0) { + /* NOP */ + return; + } gen_op_load_gpr_T0(rS(ctx->opcode)); + if (uimm != 0) gen_op_xori(UIMM(ctx->opcode) << 16); gen_op_store_T0_gpr(rA(ctx->opcode)); - SET_RETVAL(0); } /*** Integer rotate ***/ @@ -633,7 +672,6 @@ GEN_HANDLER(rlwimi, 0x14, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) if (Rc(ctx->opcode) != 0) gen_op_set_Rc0(); gen_op_store_T0_gpr(rA(ctx->opcode)); - SET_RETVAL(0); } /* rlwinm & rlwinm. */ GEN_HANDLER(rlwinm, 0x15, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) @@ -644,10 +682,6 @@ GEN_HANDLER(rlwinm, 0x15, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) mb = MB(ctx->opcode); me = ME(ctx->opcode); gen_op_load_gpr_T0(rS(ctx->opcode)); - if (loglevel > 0) { - fprintf(logfile, "%s sh=%u mb=%u me=%u MASK=0x%08x\n", - __func__, sh, mb, me, MASK(mb, me)); - } if (mb == 0) { if (me == 31) { gen_op_rotlwi(sh); @@ -673,7 +707,6 @@ store: if (Rc(ctx->opcode) != 0) gen_op_set_Rc0(); gen_op_store_T0_gpr(rA(ctx->opcode)); - SET_RETVAL(0); } /* rlwnm & rlwnm. */ GEN_HANDLER(rlwnm, 0x17, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) @@ -693,7 +726,6 @@ GEN_HANDLER(rlwnm, 0x17, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) if (Rc(ctx->opcode) != 0) gen_op_set_Rc0(); gen_op_store_T0_gpr(rA(ctx->opcode)); - SET_RETVAL(0); } /*** Integer shift ***/ @@ -709,172 +741,169 @@ GEN_HANDLER(srawi, 0x1F, 0x18, 0x19, 0x00000000, PPC_INTEGER) if (Rc(ctx->opcode) != 0) gen_op_set_Rc0(); gen_op_store_T0_gpr(rA(ctx->opcode)); - SET_RETVAL(0); } /* srw & srw. */ __GEN_LOGICAL2(srw, 0x18, 0x10); /*** Floating-Point arithmetic ***/ -/* fadd */ -GEN_HANDLER(fadd, 0x3F, 0x15, 0xFF, 0x000007C0, PPC_FLOAT) -{ - SET_RETVAL(EXCP_INVAL); +#define _GEN_FLOAT_ACB(name, op1, op2) \ +GEN_HANDLER(f##name, op1, op2, 0xFF, 0x00000000, PPC_FLOAT) \ +{ \ + gen_op_reset_scrfx(); \ + gen_op_load_fpr_FT0(rA(ctx->opcode)); \ + gen_op_load_fpr_FT1(rC(ctx->opcode)); \ + gen_op_load_fpr_FT2(rB(ctx->opcode)); \ + gen_op_f##name(); \ + gen_op_store_FT0_fpr(rD(ctx->opcode)); \ + if (Rc(ctx->opcode)) \ + gen_op_set_Rc1(); \ +} + +#define GEN_FLOAT_ACB(name, op2) \ +_GEN_FLOAT_ACB(name, 0x3F, op2); \ +_GEN_FLOAT_ACB(name##s, 0x3B, op2); + +#define _GEN_FLOAT_AB(name, op1, op2, inval) \ +GEN_HANDLER(f##name, op1, op2, 0xFF, inval, PPC_FLOAT) \ +{ \ + gen_op_reset_scrfx(); \ + gen_op_load_fpr_FT0(rA(ctx->opcode)); \ + gen_op_load_fpr_FT1(rB(ctx->opcode)); \ + gen_op_f##name(); \ + gen_op_store_FT0_fpr(rD(ctx->opcode)); \ + if (Rc(ctx->opcode)) \ + gen_op_set_Rc1(); \ +} +#define GEN_FLOAT_AB(name, op2, inval) \ +_GEN_FLOAT_AB(name, 0x3F, op2, inval); \ +_GEN_FLOAT_AB(name##s, 0x3B, op2, inval); + +#define _GEN_FLOAT_AC(name, op1, op2, inval) \ +GEN_HANDLER(f##name, op1, op2, 0xFF, inval, PPC_FLOAT) \ +{ \ + gen_op_reset_scrfx(); \ + gen_op_load_fpr_FT0(rA(ctx->opcode)); \ + gen_op_load_fpr_FT1(rC(ctx->opcode)); \ + gen_op_f##name(); \ + gen_op_store_FT0_fpr(rD(ctx->opcode)); \ + if (Rc(ctx->opcode)) \ + gen_op_set_Rc1(); \ +} +#define GEN_FLOAT_AC(name, op2, inval) \ +_GEN_FLOAT_AC(name, 0x3F, op2, inval); \ +_GEN_FLOAT_AC(name##s, 0x3B, op2, inval); + +#define GEN_FLOAT_B(name, op2, op3) \ +GEN_HANDLER(f##name, 0x3F, op2, op3, 0x001F0000, PPC_FLOAT) \ +{ \ + gen_op_reset_scrfx(); \ + gen_op_load_fpr_FT0(rB(ctx->opcode)); \ + gen_op_f##name(); \ + gen_op_store_FT0_fpr(rD(ctx->opcode)); \ + if (Rc(ctx->opcode)) \ + gen_op_set_Rc1(); \ } -/* fadds */ -GEN_HANDLER(fadds, 0x3B, 0x15, 0xFF, 0x000007C0, PPC_FLOAT) -{ - SET_RETVAL(EXCP_INVAL); +#define GEN_FLOAT_BS(name, op2) \ +GEN_HANDLER(f##name, 0x3F, op2, 0xFF, 0x001F07C0, PPC_FLOAT) \ +{ \ + gen_op_reset_scrfx(); \ + gen_op_load_fpr_FT0(rB(ctx->opcode)); \ + gen_op_f##name(); \ + gen_op_store_FT0_fpr(rD(ctx->opcode)); \ + if (Rc(ctx->opcode)) \ + gen_op_set_Rc1(); \ } +/* fadd - fadds */ +GEN_FLOAT_AB(add, 0x15, 0x000007C0); /* fdiv */ -GEN_HANDLER(fdiv, 0x3F, 0x12, 0xFF, 0x000007C0, PPC_FLOAT) -{ - SET_RETVAL(EXCP_INVAL); -} - -/* fdivs */ -GEN_HANDLER(fdivs, 0x3B, 0x12, 0xFF, 0x000007C0, PPC_FLOAT) -{ - SET_RETVAL(EXCP_INVAL); -} - +GEN_FLOAT_AB(div, 0x12, 0x000007C0); /* fmul */ -GEN_HANDLER(fmul, 0x3F, 0x19, 0xFF, 0x0000F800, PPC_FLOAT) -{ - SET_RETVAL(EXCP_INVAL); -} - -/* fmuls */ -GEN_HANDLER(fmuls, 0x3B, 0x19, 0xFF, 0x0000F800, PPC_FLOAT) -{ - SET_RETVAL(EXCP_INVAL); -} +GEN_FLOAT_AC(mul, 0x19, 0x0000F800); /* fres */ -GEN_HANDLER(fres, 0x3B, 0x18, 0xFF, 0x001807C0, PPC_FLOAT) -{ - SET_RETVAL(EXCP_INVAL); -} +GEN_FLOAT_BS(res, 0x18); /* frsqrte */ -GEN_HANDLER(frsqrte, 0x3F, 0x1A, 0xFF, 0x001807C0, PPC_FLOAT) -{ - SET_RETVAL(EXCP_INVAL); -} +GEN_FLOAT_BS(rsqrte, 0x1A); /* fsel */ -GEN_HANDLER(fsel, 0x3F, 0x17, 0xFF, 0x00000000, PPC_FLOAT) -{ - SET_RETVAL(EXCP_INVAL); -} - +_GEN_FLOAT_ACB(sel, 0x3F, 0x17); /* fsub */ -GEN_HANDLER(fsub, 0x3F, 0x14, 0xFF, 0x000007C0, PPC_FLOAT) -{ - SET_RETVAL(EXCP_INVAL); -} - -/* fsubs */ -GEN_HANDLER(fsubs, 0x3B, 0x14, 0xFF, 0x000007C0, PPC_FLOAT) -{ - SET_RETVAL(EXCP_INVAL); -} - +GEN_FLOAT_AB(sub, 0x14, 0x000007C0); /* Optional: */ /* fsqrt */ -GEN_HANDLER(fsqrt, 0x3F, 0x16, 0xFF, 0x001807C0, PPC_FLOAT) -{ - SET_RETVAL(EXCP_INVAL); -} +GEN_FLOAT_BS(sqrt, 0x16); -/* fsqrts */ -GEN_HANDLER(fsqrts, 0x3B, 0x16, 0xFF, 0x001807C0, PPC_FLOAT) +GEN_HANDLER(fsqrts, 0x3B, 0x16, 0xFF, 0x001F07C0, PPC_FLOAT_OPT) { - SET_RETVAL(EXCP_INVAL); + gen_op_reset_scrfx(); + gen_op_load_fpr_FT0(rB(ctx->opcode)); + gen_op_fsqrts(); + gen_op_store_FT0_fpr(rD(ctx->opcode)); + if (Rc(ctx->opcode)) + gen_op_set_Rc1(); } /*** Floating-Point multiply-and-add ***/ /* fmadd */ -GEN_HANDLER(fmadd, 0x3F, 0x1D, 0xFF, 0x00000000, PPC_FLOAT) -{ - SET_RETVAL(EXCP_INVAL); -} - -/* fmadds */ -GEN_HANDLER(fmadds, 0x3B, 0x1D, 0xFF, 0x00000000, PPC_FLOAT) -{ - SET_RETVAL(EXCP_INVAL); -} - +GEN_FLOAT_ACB(madd, 0x1D); /* fmsub */ -GEN_HANDLER(fmsub, 0x3F, 0x1C, 0xFF, 0x00000000, PPC_FLOAT) -{ - SET_RETVAL(EXCP_INVAL); -} - -/* fmsubs */ -GEN_HANDLER(fmsubs, 0x3B, 0x1C, 0xFF, 0x00000000, PPC_FLOAT) -{ - SET_RETVAL(EXCP_INVAL); -} - +GEN_FLOAT_ACB(msub, 0x1C); /* fnmadd */ -GEN_HANDLER(fnmadd, 0x3F, 0x1F, 0xFF, 0x00000000, PPC_FLOAT) -{ - SET_RETVAL(EXCP_INVAL); -} - -/* fnmadds */ -GEN_HANDLER(fnmadds, 0x3B, 0x1F, 0xFF, 0x00000000, PPC_FLOAT) -{ - SET_RETVAL(EXCP_INVAL); -} - +GEN_FLOAT_ACB(nmadd, 0x1F); /* fnmsub */ -GEN_HANDLER(fnmsub, 0x3F, 0x1E, 0xFF, 0x00000000, PPC_FLOAT) -{ - SET_RETVAL(EXCP_INVAL); -} - -/* fnmsubs */ -GEN_HANDLER(fnmsubs, 0x3B, 0x1E, 0xFF, 0x00000000, PPC_FLOAT) -{ - SET_RETVAL(EXCP_INVAL); -} +GEN_FLOAT_ACB(nmsub, 0x1E); /*** Floating-Point round & convert ***/ /* fctiw */ -GEN_HANDLER(fctiw, 0x3F, 0x0E, 0xFF, 0x001F0000, PPC_FLOAT) -{ - SET_RETVAL(EXCP_INVAL); -} - +GEN_FLOAT_B(ctiw, 0x0E, 0x00); /* fctiwz */ -GEN_HANDLER(fctiwz, 0x3F, 0x0F, 0xFF, 0x001F0000, PPC_FLOAT) -{ - SET_RETVAL(EXCP_INVAL); -} - +GEN_FLOAT_B(ctiwz, 0x0F, 0x00); /* frsp */ -GEN_HANDLER(frsp, 0x3F, 0x0C, 0xFF, 0x001F0000, PPC_FLOAT) -{ - SET_RETVAL(EXCP_INVAL); -} +GEN_FLOAT_B(rsp, 0x0C, 0x00); /*** Floating-Point compare ***/ /* fcmpo */ GEN_HANDLER(fcmpo, 0x3F, 0x00, 0x00, 0x00600001, PPC_FLOAT) { - SET_RETVAL(EXCP_INVAL); + gen_op_reset_scrfx(); + gen_op_load_fpr_FT0(rA(ctx->opcode)); + gen_op_load_fpr_FT1(rB(ctx->opcode)); + gen_op_fcmpo(); + gen_op_store_T0_crf(crfD(ctx->opcode)); } /* fcmpu */ GEN_HANDLER(fcmpu, 0x3F, 0x00, 0x01, 0x00600001, PPC_FLOAT) { - SET_RETVAL(EXCP_INVAL); + gen_op_reset_scrfx(); + gen_op_load_fpr_FT0(rA(ctx->opcode)); + gen_op_load_fpr_FT1(rB(ctx->opcode)); + gen_op_fcmpu(); + gen_op_store_T0_crf(crfD(ctx->opcode)); } +/*** Floating-point move ***/ +/* fabs */ +GEN_FLOAT_B(abs, 0x08, 0x08); + +/* fmr - fmr. */ +GEN_HANDLER(fmr, 0x3F, 0x08, 0x02, 0x001F0000, PPC_FLOAT) +{ + gen_op_reset_scrfx(); + gen_op_load_fpr_FT0(rB(ctx->opcode)); + gen_op_store_FT0_fpr(rD(ctx->opcode)); + if (Rc(ctx->opcode)) + gen_op_set_Rc1(); +} + +/* fnabs */ +GEN_FLOAT_B(nabs, 0x08, 0x04); +/* fneg */ +GEN_FLOAT_B(neg, 0x08, 0x01); + /*** Floating-Point status & ctrl register ***/ /* mcrfs */ GEN_HANDLER(mcrfs, 0x3F, 0x00, 0x02, 0x0063F801, PPC_FLOAT) @@ -882,7 +911,6 @@ GEN_HANDLER(mcrfs, 0x3F, 0x00, 0x02, 0x0063F801, PPC_FLOAT) gen_op_load_fpscr_T0(crfS(ctx->opcode)); gen_op_store_T0_crf(crfD(ctx->opcode)); gen_op_clear_fpscr(crfS(ctx->opcode)); - SET_RETVAL(0); } /* mffs */ @@ -892,7 +920,6 @@ GEN_HANDLER(mffs, 0x3F, 0x07, 0x12, 0x001FF800, PPC_FLOAT) gen_op_store_FT0_fpr(rD(ctx->opcode)); if (Rc(ctx->opcode)) gen_op_set_Rc1(); - SET_RETVAL(0); } /* mtfsb0 */ @@ -906,7 +933,6 @@ GEN_HANDLER(mtfsb0, 0x3F, 0x06, 0x02, 0x001FF800, PPC_FLOAT) gen_op_store_T0_fpscr(crb); if (Rc(ctx->opcode)) gen_op_set_Rc1(); - SET_RETVAL(0); } /* mtfsb1 */ @@ -920,7 +946,6 @@ GEN_HANDLER(mtfsb1, 0x3F, 0x06, 0x01, 0x001FF800, PPC_FLOAT) gen_op_store_T0_fpscr(crb); if (Rc(ctx->opcode)) gen_op_set_Rc1(); - SET_RETVAL(0); } /* mtfsf */ @@ -930,7 +955,6 @@ GEN_HANDLER(mtfsf, 0x3F, 0x07, 0x16, 0x02010000, PPC_FLOAT) gen_op_store_fpscr(FM(ctx->opcode)); if (Rc(ctx->opcode)) gen_op_set_Rc1(); - SET_RETVAL(0); } /* mtfsfi */ @@ -939,505 +963,541 @@ GEN_HANDLER(mtfsfi, 0x3F, 0x06, 0x04, 0x006f0800, PPC_FLOAT) gen_op_store_T0_fpscri(crbD(ctx->opcode) >> 2, FPIMM(ctx->opcode)); if (Rc(ctx->opcode)) gen_op_set_Rc1(); - SET_RETVAL(0); } /*** Integer load ***/ -#define GEN_ILDZ(width, opc) \ +#if defined(CONFIG_USER_ONLY) +#define op_ldst(name) gen_op_##name##_raw() +#define OP_LD_TABLE(width) +#define OP_ST_TABLE(width) +#else +#define op_ldst(name) (*gen_op_##name[ctx->mem_idx])() +#define OP_LD_TABLE(width) \ +static GenOpFunc *gen_op_l##width[] = { \ + &gen_op_l##width##_user, \ + &gen_op_l##width##_kernel, \ +} +#define OP_ST_TABLE(width) \ +static GenOpFunc *gen_op_st##width[] = { \ + &gen_op_st##width##_user, \ + &gen_op_st##width##_kernel, \ +} +#endif + +#define GEN_LD(width, opc) \ GEN_HANDLER(l##width, opc, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) \ { \ uint32_t simm = SIMM(ctx->opcode); \ if (rA(ctx->opcode) == 0) { \ - gen_op_l##width##_z(simm); \ + gen_op_set_T0(simm); \ } else { \ gen_op_load_gpr_T0(rA(ctx->opcode)); \ - gen_op_l##width (simm); \ + if (simm != 0) \ + gen_op_addi(simm); \ } \ + op_ldst(l##width); \ gen_op_store_T1_gpr(rD(ctx->opcode)); \ - SET_RETVAL(0); \ } -#define GEN_ILDZU(width, opc) \ +#define GEN_LDU(width, opc) \ GEN_HANDLER(l##width##u, opc, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) \ { \ + uint32_t simm = SIMM(ctx->opcode); \ if (rA(ctx->opcode) == 0 || \ - rA(ctx->opcode) == rD(ctx->opcode)) \ - SET_RETVAL(EXCP_INVAL); \ + rA(ctx->opcode) == rD(ctx->opcode)) { \ + RET_INVAL(); \ + } \ gen_op_load_gpr_T0(rA(ctx->opcode)); \ - gen_op_l##width(SIMM(ctx->opcode)); \ + if (simm != 0) \ + gen_op_addi(simm); \ + op_ldst(l##width); \ gen_op_store_T1_gpr(rD(ctx->opcode)); \ gen_op_store_T0_gpr(rA(ctx->opcode)); \ - SET_RETVAL(0); \ } -#define GEN_ILDZUX(width, opc) \ +#define GEN_LDUX(width, opc) \ GEN_HANDLER(l##width##ux, 0x1F, 0x17, opc, 0x00000001, PPC_INTEGER) \ { \ if (rA(ctx->opcode) == 0 || \ - rA(ctx->opcode) == rD(ctx->opcode)) \ - SET_RETVAL(EXCP_INVAL); \ + rA(ctx->opcode) == rD(ctx->opcode)) { \ + RET_INVAL(); \ + } \ gen_op_load_gpr_T0(rA(ctx->opcode)); \ gen_op_load_gpr_T1(rB(ctx->opcode)); \ - gen_op_l##width##x(); \ + gen_op_add(); \ + op_ldst(l##width); \ gen_op_store_T1_gpr(rD(ctx->opcode)); \ gen_op_store_T0_gpr(rA(ctx->opcode)); \ - SET_RETVAL(0); \ } -#define GEN_ILDZX(width, opc2, opc3) \ +#define GEN_LDX(width, opc2, opc3) \ GEN_HANDLER(l##width##x, 0x1F, opc2, opc3, 0x00000001, PPC_INTEGER) \ { \ if (rA(ctx->opcode) == 0) { \ gen_op_load_gpr_T0(rB(ctx->opcode)); \ - gen_op_l##width##x_z(); \ } else { \ gen_op_load_gpr_T0(rA(ctx->opcode)); \ gen_op_load_gpr_T1(rB(ctx->opcode)); \ - gen_op_l##width##x(); \ + gen_op_add(); \ } \ + op_ldst(l##width); \ gen_op_store_T1_gpr(rD(ctx->opcode)); \ - SET_RETVAL(0); \ } -#define GEN_ILD(width, op) \ -GEN_ILDZ(width, op | 0x20) \ -GEN_ILDZU(width, op | 0x21) \ -GEN_ILDZUX(width, op | 0x01) \ -GEN_ILDZX(width, 0x17, op | 0x00) +#define GEN_LDS(width, op) \ +OP_LD_TABLE(width); \ +GEN_LD(width, op | 0x20); \ +GEN_LDU(width, op | 0x21); \ +GEN_LDUX(width, op | 0x01); \ +GEN_LDX(width, 0x17, op | 0x00) /* lbz lbzu lbzux lbzx */ -GEN_ILD(bz, 0x02); +GEN_LDS(bz, 0x02); /* lha lhau lhaux lhax */ -GEN_ILD(ha, 0x0A); +GEN_LDS(ha, 0x0A); /* lhz lhzu lhzux lhzx */ -GEN_ILD(hz, 0x08); +GEN_LDS(hz, 0x08); /* lwz lwzu lwzux lwzx */ -GEN_ILD(wz, 0x00); +GEN_LDS(wz, 0x00); /*** Integer store ***/ -#define GEN_IST(width, opc) \ +#define GEN_ST(width, opc) \ GEN_HANDLER(st##width, opc, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) \ { \ uint32_t simm = SIMM(ctx->opcode); \ if (rA(ctx->opcode) == 0) { \ - gen_op_load_gpr_T0(rS(ctx->opcode)); \ - gen_op_st##width##_z(simm); \ + gen_op_set_T0(simm); \ } else { \ gen_op_load_gpr_T0(rA(ctx->opcode)); \ - gen_op_load_gpr_T1(rS(ctx->opcode)); \ - gen_op_st##width(simm); \ + if (simm != 0) \ + gen_op_addi(simm); \ } \ - SET_RETVAL(0); \ + gen_op_load_gpr_T1(rS(ctx->opcode)); \ + op_ldst(st##width); \ } -#define GEN_ISTU(width, opc) \ +#define GEN_STU(width, opc) \ GEN_HANDLER(st##width##u, opc, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) \ { \ - if (rA(ctx->opcode) == 0) \ - SET_RETVAL(EXCP_INVAL); \ + uint32_t simm = SIMM(ctx->opcode); \ + if (rA(ctx->opcode) == 0) { \ + RET_INVAL(); \ + } \ gen_op_load_gpr_T0(rA(ctx->opcode)); \ + if (simm != 0) \ + gen_op_addi(simm); \ gen_op_load_gpr_T1(rS(ctx->opcode)); \ - gen_op_st##width(SIMM(ctx->opcode)); \ + op_ldst(st##width); \ gen_op_store_T0_gpr(rA(ctx->opcode)); \ - SET_RETVAL(0); \ } -#define GEN_ISTUX(width, opc) \ +#define GEN_STUX(width, opc) \ GEN_HANDLER(st##width##ux, 0x1F, 0x17, opc, 0x00000001, PPC_INTEGER) \ { \ - if (rA(ctx->opcode) == 0) \ - SET_RETVAL(EXCP_INVAL); \ + if (rA(ctx->opcode) == 0) { \ + RET_INVAL(); \ + } \ gen_op_load_gpr_T0(rA(ctx->opcode)); \ gen_op_load_gpr_T1(rB(ctx->opcode)); \ - gen_op_load_gpr_T2(rS(ctx->opcode)); \ - gen_op_st##width##x(); \ + gen_op_add(); \ + gen_op_load_gpr_T1(rS(ctx->opcode)); \ + op_ldst(st##width); \ gen_op_store_T0_gpr(rA(ctx->opcode)); \ - SET_RETVAL(0); \ } -#define GEN_ISTX(width, opc2, opc3) \ +#define GEN_STX(width, opc2, opc3) \ GEN_HANDLER(st##width##x, 0x1F, opc2, opc3, 0x00000001, PPC_INTEGER) \ { \ if (rA(ctx->opcode) == 0) { \ gen_op_load_gpr_T0(rB(ctx->opcode)); \ - gen_op_load_gpr_T1(rS(ctx->opcode)); \ - gen_op_st##width##x_z(); \ } else { \ gen_op_load_gpr_T0(rA(ctx->opcode)); \ gen_op_load_gpr_T1(rB(ctx->opcode)); \ - gen_op_load_gpr_T2(rS(ctx->opcode)); \ - gen_op_st##width##x(); \ + gen_op_add(); \ } \ - SET_RETVAL(0); \ + gen_op_load_gpr_T1(rS(ctx->opcode)); \ + op_ldst(st##width); \ } -#define GEN_ISTO(width, opc) \ -GEN_IST(width, opc | 0x20) \ -GEN_ISTU(width, opc | 0x21) \ -GEN_ISTUX(width, opc | 0x01) \ -GEN_ISTX(width, 0x17, opc | 0x00) +#define GEN_STS(width, op) \ +OP_ST_TABLE(width); \ +GEN_ST(width, op | 0x20); \ +GEN_STU(width, op | 0x21); \ +GEN_STUX(width, op | 0x01); \ +GEN_STX(width, 0x17, op | 0x00) /* stb stbu stbux stbx */ -GEN_ISTO(b, 0x06); +GEN_STS(b, 0x06); /* sth sthu sthux sthx */ -GEN_ISTO(h, 0x0C); +GEN_STS(h, 0x0C); /* stw stwu stwux stwx */ -GEN_ISTO(w, 0x04); +GEN_STS(w, 0x04); /*** Integer load and store with byte reverse ***/ /* lhbrx */ -GEN_ILDZX(hbr, 0x16, 0x18); +OP_LD_TABLE(hbr); +GEN_LDX(hbr, 0x16, 0x18); /* lwbrx */ -GEN_ILDZX(wbr, 0x16, 0x10); +OP_LD_TABLE(wbr); +GEN_LDX(wbr, 0x16, 0x10); /* sthbrx */ -GEN_ISTX(hbr, 0x16, 0x1C); +OP_ST_TABLE(hbr); +GEN_STX(hbr, 0x16, 0x1C); /* stwbrx */ -GEN_ISTX(wbr, 0x16, 0x14); +OP_ST_TABLE(wbr); +GEN_STX(wbr, 0x16, 0x14); /*** Integer load and store multiple ***/ +#if defined(CONFIG_USER_ONLY) +#define op_ldstm(name, reg) gen_op_##name##_raw(reg) +#else +#define op_ldstm(name, reg) (*gen_op_##name[ctx->mem_idx])(reg) +static GenOpFunc1 *gen_op_lmw[] = { + &gen_op_lmw_user, + &gen_op_lmw_kernel, +}; +static GenOpFunc1 *gen_op_stmw[] = { + &gen_op_stmw_user, + &gen_op_stmw_kernel, +}; +#endif + /* lmw */ GEN_HANDLER(lmw, 0x2E, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) { + int simm = SIMM(ctx->opcode); + if (rA(ctx->opcode) == 0) { - gen_op_set_T0(0); + gen_op_set_T0(simm); } else { gen_op_load_gpr_T0(rA(ctx->opcode)); + if (simm != 0) + gen_op_addi(simm); } - gen_op_lmw(rD(ctx->opcode), SIMM(ctx->opcode)); - SET_RETVAL(0); + op_ldstm(lmw, rD(ctx->opcode)); } /* stmw */ GEN_HANDLER(stmw, 0x2F, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) { + int simm = SIMM(ctx->opcode); + if (rA(ctx->opcode) == 0) { - gen_op_set_T0(0); + gen_op_set_T0(simm); } else { gen_op_load_gpr_T0(rA(ctx->opcode)); + if (simm != 0) + gen_op_addi(simm); } - gen_op_stmw(rS(ctx->opcode), SIMM(ctx->opcode)); - SET_RETVAL(0); + op_ldstm(stmw, rS(ctx->opcode)); } /*** Integer load and store strings ***/ +#if defined(CONFIG_USER_ONLY) +#define op_ldsts(name, start) gen_op_##name##_raw(start) +#define op_ldstsx(name, rd, ra, rb) gen_op_##name##_raw(rd, ra, rb) +#else +#define op_ldsts(name, start) (*gen_op_##name[ctx->mem_idx])(start) +#define op_ldstsx(name, rd, ra, rb) (*gen_op_##name[ctx->mem_idx])(rd, ra, rb) +static GenOpFunc1 *gen_op_lswi[] = { + &gen_op_lswi_user, + &gen_op_lswi_kernel, +}; +static GenOpFunc3 *gen_op_lswx[] = { + &gen_op_lswx_user, + &gen_op_lswx_kernel, +}; +static GenOpFunc1 *gen_op_stsw[] = { + &gen_op_stsw_user, + &gen_op_stsw_kernel, +}; +#endif + /* lswi */ +/* PPC32 specification says we must generate an exception if + * rA is in the range of registers to be loaded. + * In an other hand, IBM says this is valid, but rA won't be loaded. + * For now, I'll follow the spec... + */ GEN_HANDLER(lswi, 0x1F, 0x15, 0x12, 0x00000001, PPC_INTEGER) { int nb = NB(ctx->opcode); int start = rD(ctx->opcode); + int ra = rA(ctx->opcode); int nr; if (nb == 0) nb = 32; nr = nb / 4; - if ((start + nr) > 32) { - /* handle wrap around r0 */ - if (rA(ctx->opcode) == 0) { - gen_op_set_T0(0); - } else { - gen_op_load_gpr_T0(rA(ctx->opcode)); + if (((start + nr) > 32 && start <= ra && (start + nr - 32) >= ra) || + ((start + nr) <= 32 && start <= ra && (start + nr) >= ra)) { + RET_EXCP(EXCP_PROGRAM, EXCP_INVAL | EXCP_INVAL_LSWX); } - gen_op_lswi(start, 4 * (32 - start)); - nb -= 4 * (32 - start); - start = 0; - } - if (rA(ctx->opcode) == 0) { + if (ra == 0) { gen_op_set_T0(0); } else { - gen_op_load_gpr_T0(rA(ctx->opcode)); + gen_op_load_gpr_T0(ra); } - gen_op_lswi(start, nb); - SET_RETVAL(0); + gen_op_set_T1(nb); + op_ldsts(lswi, start); } /* lswx */ GEN_HANDLER(lswx, 0x1F, 0x15, 0x10, 0x00000001, PPC_INTEGER) { - gen_op_load_xer_bc(); - gen_op_load_gpr_T1(rB(ctx->opcode)); - if (rA(ctx->opcode) == 0) { - gen_op_set_T2(0); + int ra = rA(ctx->opcode); + int rb = rB(ctx->opcode); + + if (ra == 0) { + gen_op_load_gpr_T0(rb); + ra = rb; } else { - gen_op_load_gpr_T2(rA(ctx->opcode)); + gen_op_load_gpr_T0(ra); + gen_op_load_gpr_T1(rb); + gen_op_add(); } - gen_op_lswx(rD(ctx->opcode)); - SET_RETVAL(0); + gen_op_load_xer_bc(); + op_ldstsx(lswx, rD(ctx->opcode), ra, rb); } /* stswi */ GEN_HANDLER(stswi, 0x1F, 0x15, 0x16, 0x00000001, PPC_INTEGER) { - int nb = NB(ctx->opcode); - int start = rS(ctx->opcode); - int nr; - - if (nb == 0) - nb = 32; - nr = nb / 4; - if ((start + nr) > 32) { - /* handle wrap around r0 */ - if (rA(ctx->opcode) == 0) { - gen_op_set_T0(0); - } else { - gen_op_load_gpr_T0(rA(ctx->opcode)); - } - gen_op_stswi(start, 4 * (32 - start)); - nb -= 4 * (32 - start); - start = 0; - } if (rA(ctx->opcode) == 0) { gen_op_set_T0(0); } else { gen_op_load_gpr_T0(rA(ctx->opcode)); } - gen_op_stswi(start, nb); - SET_RETVAL(0); + gen_op_set_T1(NB(ctx->opcode)); + op_ldsts(stsw, rS(ctx->opcode)); } /* stswx */ GEN_HANDLER(stswx, 0x1F, 0x15, 0x14, 0x00000001, PPC_INTEGER) { - gen_op_load_xer_bc(); - gen_op_load_gpr_T1(rB(ctx->opcode)); - if (rA(ctx->opcode) == 0) { - gen_op_set_T2(0); + int ra = rA(ctx->opcode); + + if (ra == 0) { + gen_op_load_gpr_T0(rB(ctx->opcode)); + ra = rB(ctx->opcode); } else { - gen_op_load_gpr_T2(rA(ctx->opcode)); + gen_op_load_gpr_T0(ra); + gen_op_load_gpr_T1(rB(ctx->opcode)); + gen_op_add(); } - gen_op_stswx(rS(ctx->opcode)); - SET_RETVAL(0); + gen_op_load_xer_bc(); + op_ldsts(stsw, rS(ctx->opcode)); } /*** Memory synchronisation ***/ /* eieio */ GEN_HANDLER(eieio, 0x1F, 0x16, 0x1A, 0x03FF0801, PPC_MEM) { - /* Do a branch to next instruction */ - gen_op_b((uint32_t)ctx->nip); - SET_RETVAL(EXCP_BRANCH); } /* isync */ GEN_HANDLER(isync, 0x13, 0x16, 0xFF, 0x03FF0801, PPC_MEM) { - /* Do a branch to next instruction */ - gen_op_b((uint32_t)ctx->nip); - SET_RETVAL(EXCP_BRANCH); } /* lwarx */ -GEN_HANDLER(lwarx, 0x1F, 0x14, 0xFF, 0x00000001, PPC_MEM) +#if defined(CONFIG_USER_ONLY) +#define op_stwcx() gen_op_stwcx_raw() +#else +#define op_stwcx() (*gen_op_stwcx[ctx->mem_idx])() +static GenOpFunc *gen_op_stwcx[] = { + &gen_op_stwcx_user, + &gen_op_stwcx_kernel, +}; +#endif + +GEN_HANDLER(lwarx, 0x1F, 0x14, 0xFF, 0x00000001, PPC_RES) { - reserve = 1; if (rA(ctx->opcode) == 0) { gen_op_load_gpr_T0(rB(ctx->opcode)); - gen_op_lwarx_z(); } else { gen_op_load_gpr_T0(rA(ctx->opcode)); gen_op_load_gpr_T1(rB(ctx->opcode)); - gen_op_lwarx(); + gen_op_add(); } + op_ldst(lwz); gen_op_store_T1_gpr(rD(ctx->opcode)); - SET_RETVAL(0); + gen_op_set_reservation(); } /* stwcx. */ -GEN_HANDLER(stwcx_, 0x1F, 0x16, 0x04, 0x00000000, PPC_MEM) +GEN_HANDLER(stwcx_, 0x1F, 0x16, 0x04, 0x00000000, PPC_RES) { - if (reserve == 0) { - gen_op_reset_Rc0(); - } else { if (rA(ctx->opcode) == 0) { gen_op_load_gpr_T0(rB(ctx->opcode)); - gen_op_load_gpr_T1(rS(ctx->opcode)); - gen_op_stwx_z(); } else { gen_op_load_gpr_T0(rA(ctx->opcode)); gen_op_load_gpr_T1(rB(ctx->opcode)); - gen_op_load_gpr_T2(rS(ctx->opcode)); - gen_op_stwx(); + gen_op_add(); } - } - SET_RETVAL(0); + gen_op_load_gpr_T1(rS(ctx->opcode)); + op_stwcx(); } /* sync */ GEN_HANDLER(sync, 0x1F, 0x16, 0x12, 0x03FF0801, PPC_MEM) { - /* Do a branch to next instruction */ - gen_op_b((uint32_t)ctx->nip); - SET_RETVAL(EXCP_BRANCH); } /*** Floating-point load ***/ -#define GEN_LF(width, opc) \ -GEN_HANDLER(lf##width, opc, 0xFF, 0xFF, 0x00000000, PPC_FLOAT) \ +#define GEN_LDF(width, opc) \ +GEN_HANDLER(l##width, opc, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) \ { \ uint32_t simm = SIMM(ctx->opcode); \ if (rA(ctx->opcode) == 0) { \ - gen_op_lf##width##_z_FT0(simm); \ + gen_op_set_T0(simm); \ } else { \ gen_op_load_gpr_T0(rA(ctx->opcode)); \ - gen_op_lf##width##_FT0(simm); \ + if (simm != 0) \ + gen_op_addi(simm); \ } \ - gen_op_store_FT0_fpr(rD(ctx->opcode));\ - SET_RETVAL(0); \ + op_ldst(l##width); \ + gen_op_store_FT1_fpr(rD(ctx->opcode)); \ } -#define GEN_LFU(width, opc) \ -GEN_HANDLER(lf##width##u, opc, 0xFF, 0xFF, 0x00000000, PPC_FLOAT) \ +#define GEN_LDUF(width, opc) \ +GEN_HANDLER(l##width##u, opc, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) \ { \ + uint32_t simm = SIMM(ctx->opcode); \ if (rA(ctx->opcode) == 0 || \ - rA(ctx->opcode) == rD(ctx->opcode)) \ - SET_RETVAL(EXCP_INVAL); \ + rA(ctx->opcode) == rD(ctx->opcode)) { \ + RET_INVAL(); \ + } \ gen_op_load_gpr_T0(rA(ctx->opcode)); \ - gen_op_lf##width##_FT0(SIMM(ctx->opcode)); \ - gen_op_store_FT0_fpr(rD(ctx->opcode));\ + if (simm != 0) \ + gen_op_addi(simm); \ + op_ldst(l##width); \ + gen_op_store_FT1_fpr(rD(ctx->opcode)); \ gen_op_store_T0_gpr(rA(ctx->opcode)); \ - SET_RETVAL(0); \ } -#define GEN_LFUX(width, opc) \ -GEN_HANDLER(lf##width##ux, 0x1F, 0x17, opc, 0x00000001, PPC_FLOAT) \ +#define GEN_LDUXF(width, opc) \ +GEN_HANDLER(l##width##ux, 0x1F, 0x17, opc, 0x00000001, PPC_INTEGER) \ { \ if (rA(ctx->opcode) == 0 || \ - rA(ctx->opcode) == rD(ctx->opcode)) \ - SET_RETVAL(EXCP_INVAL); \ + rA(ctx->opcode) == rD(ctx->opcode)) { \ + RET_INVAL(); \ + } \ gen_op_load_gpr_T0(rA(ctx->opcode)); \ gen_op_load_gpr_T1(rB(ctx->opcode)); \ - gen_op_lf##width##x_FT0(); \ - gen_op_store_FT0_fpr(rD(ctx->opcode));\ + gen_op_add(); \ + op_ldst(l##width); \ + gen_op_store_FT1_fpr(rD(ctx->opcode)); \ gen_op_store_T0_gpr(rA(ctx->opcode)); \ - SET_RETVAL(0); \ } -#define GEN_LFX(width, opc) \ -GEN_HANDLER(lf##width##x, 0x1F, 0x17, opc, 0x00000001, PPC_FLOAT) \ +#define GEN_LDXF(width, opc2, opc3) \ +GEN_HANDLER(l##width##x, 0x1F, opc2, opc3, 0x00000001, PPC_INTEGER) \ { \ if (rA(ctx->opcode) == 0) { \ gen_op_load_gpr_T0(rB(ctx->opcode)); \ - gen_op_lf##width##x_z_FT0(); \ } else { \ gen_op_load_gpr_T0(rA(ctx->opcode)); \ gen_op_load_gpr_T1(rB(ctx->opcode)); \ - gen_op_lf##width##x_FT0(); \ + gen_op_add(); \ } \ - gen_op_store_FT0_fpr(rD(ctx->opcode));\ - SET_RETVAL(0); \ + op_ldst(l##width); \ + gen_op_store_FT1_fpr(rD(ctx->opcode)); \ } -#define GEN_LDF(width, opc) \ -GEN_LF(width, opc | 0x20) \ -GEN_LFU(width, opc | 0x21) \ -GEN_LFUX(width, opc | 0x01) \ -GEN_LFX(width, opc | 0x00) +#define GEN_LDFS(width, op) \ +OP_LD_TABLE(width); \ +GEN_LDF(width, op | 0x20); \ +GEN_LDUF(width, op | 0x21); \ +GEN_LDUXF(width, op | 0x01); \ +GEN_LDXF(width, 0x17, op | 0x00) /* lfd lfdu lfdux lfdx */ -GEN_LDF(d, 0x12); +GEN_LDFS(fd, 0x12); /* lfs lfsu lfsux lfsx */ -GEN_LDF(s, 0x10); +GEN_LDFS(fs, 0x10); /*** Floating-point store ***/ #define GEN_STF(width, opc) \ -GEN_HANDLER(stf##width, opc, 0xFF, 0xFF, 0x00000000, PPC_FLOAT) \ +GEN_HANDLER(st##width, opc, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) \ { \ uint32_t simm = SIMM(ctx->opcode); \ - gen_op_load_fpr_FT0(rS(ctx->opcode));\ if (rA(ctx->opcode) == 0) { \ - gen_op_stf##width##_z_FT0(simm); \ + gen_op_set_T0(simm); \ } else { \ gen_op_load_gpr_T0(rA(ctx->opcode)); \ - gen_op_stf##width##_FT0(simm); \ + if (simm != 0) \ + gen_op_addi(simm); \ } \ - SET_RETVAL(0); \ + gen_op_load_fpr_FT1(rS(ctx->opcode)); \ + op_ldst(st##width); \ } -#define GEN_STFU(width, opc) \ -GEN_HANDLER(stf##width##u, opc, 0xFF, 0xFF, 0x00000000, PPC_FLOAT) \ +#define GEN_STUF(width, opc) \ +GEN_HANDLER(st##width##u, opc, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) \ { \ - if (rA(ctx->opcode) == 0) \ - SET_RETVAL(EXCP_INVAL); \ + uint32_t simm = SIMM(ctx->opcode); \ + if (rA(ctx->opcode) == 0) { \ + RET_INVAL(); \ + } \ gen_op_load_gpr_T0(rA(ctx->opcode)); \ - gen_op_load_fpr_FT0(rS(ctx->opcode));\ - gen_op_stf##width##_FT0(SIMM(ctx->opcode)); \ + if (simm != 0) \ + gen_op_addi(simm); \ + gen_op_load_fpr_FT1(rS(ctx->opcode)); \ + op_ldst(st##width); \ gen_op_store_T0_gpr(rA(ctx->opcode)); \ - SET_RETVAL(0); \ } -#define GEN_STFUX(width, opc) \ -GEN_HANDLER(stf##width##ux, 0x1F, 0x17, opc, 0x00000001, PPC_FLOAT) \ +#define GEN_STUXF(width, opc) \ +GEN_HANDLER(st##width##ux, 0x1F, 0x17, opc, 0x00000001, PPC_INTEGER) \ { \ - if (rA(ctx->opcode) == 0) \ - SET_RETVAL(EXCP_INVAL); \ + if (rA(ctx->opcode) == 0) { \ + RET_INVAL(); \ + } \ gen_op_load_gpr_T0(rA(ctx->opcode)); \ gen_op_load_gpr_T1(rB(ctx->opcode)); \ - gen_op_load_fpr_FT0(rS(ctx->opcode));\ - gen_op_stf##width##x_FT0(); \ + gen_op_add(); \ + gen_op_load_fpr_FT1(rS(ctx->opcode)); \ + op_ldst(st##width); \ gen_op_store_T0_gpr(rA(ctx->opcode)); \ - SET_RETVAL(0); \ } -#define GEN_STFX(width, opc) \ -GEN_HANDLER(stf##width##x, 0x1F, 0x17, opc, 0x00000001, PPC_FLOAT) \ +#define GEN_STXF(width, opc2, opc3) \ +GEN_HANDLER(st##width##x, 0x1F, opc2, opc3, 0x00000001, PPC_INTEGER) \ { \ - gen_op_load_fpr_FT0(rS(ctx->opcode));\ if (rA(ctx->opcode) == 0) { \ gen_op_load_gpr_T0(rB(ctx->opcode)); \ - gen_op_stf##width##x_z_FT0(); \ } else { \ gen_op_load_gpr_T0(rA(ctx->opcode)); \ gen_op_load_gpr_T1(rB(ctx->opcode)); \ - gen_op_stf##width##x_FT0(); \ + gen_op_add(); \ } \ - SET_RETVAL(0); \ + gen_op_load_fpr_FT1(rS(ctx->opcode)); \ + op_ldst(st##width); \ } -#define GEN_STOF(width, opc) \ -GEN_STF(width, opc | 0x20) \ -GEN_STFU(width, opc | 0x21) \ -GEN_STFUX(width, opc | 0x01) \ -GEN_STFX(width, opc | 0x00) +#define GEN_STFS(width, op) \ +OP_ST_TABLE(width); \ +GEN_STF(width, op | 0x20); \ +GEN_STUF(width, op | 0x21); \ +GEN_STUXF(width, op | 0x01); \ +GEN_STXF(width, 0x17, op | 0x00) /* stfd stfdu stfdux stfdx */ -GEN_STOF(d, 0x16); +GEN_STFS(fd, 0x16); /* stfs stfsu stfsux stfsx */ -GEN_STOF(s, 0x14); +GEN_STFS(fs, 0x14); /* Optional: */ /* stfiwx */ GEN_HANDLER(stfiwx, 0x1F, 0x17, 0x1E, 0x00000001, PPC_FLOAT) { - SET_RETVAL(EXCP_INVAL); -} - -/*** Floating-point move ***/ -/* fabs */ -GEN_HANDLER(fabs, 0x3F, 0x08, 0x08, 0x001F0000, PPC_FLOAT) -{ - SET_RETVAL(EXCP_INVAL); -} - -/* fmr */ -GEN_HANDLER(fmr, 0x3F, 0x08, 0x02, 0x001F0000, PPC_FLOAT) -{ - SET_RETVAL(EXCP_INVAL); -} - -/* fnabs */ -GEN_HANDLER(fnabs, 0x3F, 0x08, 0x04, 0x001F0000, PPC_FLOAT) -{ - SET_RETVAL(EXCP_INVAL); -} - -/* fneg */ -GEN_HANDLER(fneg, 0x3F, 0x08, 0x01, 0x001F0000, PPC_FLOAT) -{ - SET_RETVAL(EXCP_INVAL); + RET_INVAL(); } /*** Branch ***/ #define GEN_BCOND(name, opc1, opc2, opc3, prologue, \ - bl_ctr, b_ctr, bl_ctrz, b_ctrz, b, \ + bl_ctr, b_ctr, bl_ctrz, b_ctrz, b, bl, \ bl_ctr_true, b_ctr_true, bl_ctrz_true, b_ctrz_true, bl_true, b_true, \ bl_ctr_false, b_ctr_false, bl_ctrz_false, b_ctrz_false, bl_false, b_false) \ GEN_HANDLER(name, opc1, opc2, opc3, 0x00000000, PPC_FLOW) \ @@ -1446,7 +1506,11 @@ GEN_HANDLER(name, opc1, opc2, opc3, 0x00000000, PPC_FLOW) \ uint32_t bo = BO(ctx->opcode); \ uint32_t bi = BI(ctx->opcode); \ uint32_t mask; \ + gen_op_update_tb(ctx->tb_offset); \ + gen_op_update_decr(ctx->decr_offset); \ + gen_op_process_exceptions((uint32_t)ctx->nip - 4); \ prologue; \ +/* gen_op_set_T1((uint32_t)ctx->tb);*/ \ if ((bo & 0x4) == 0) \ gen_op_dec_ctr(); \ if (bo & 0x10) { \ @@ -1468,13 +1532,15 @@ GEN_HANDLER(name, opc1, opc2, opc3, 0x00000000, PPC_FLOW) \ break; \ case 4: \ case 6: \ + if (LK(ctx->opcode)) { \ + bl; \ + } else { \ b; \ - if (LK(ctx->opcode)) \ - gen_op_load_lr((uint32_t)ctx->nip); \ + } \ break; \ default: \ printf("ERROR: %s: unhandled ba case (%d)\n", __func__, bo); \ - SET_RETVAL(EXCP_INVAL); \ + RET_INVAL(); \ break; \ } \ } else { \ @@ -1506,7 +1572,7 @@ GEN_HANDLER(name, opc1, opc2, opc3, 0x00000000, PPC_FLOW) \ break; \ default: \ printf("ERROR: %s: unhandled b case (%d)\n", __func__, bo); \ - SET_RETVAL(EXCP_INVAL); \ + RET_INVAL(); \ break; \ } \ } else { \ @@ -1535,12 +1601,12 @@ GEN_HANDLER(name, opc1, opc2, opc3, 0x00000000, PPC_FLOW) \ break; \ default: \ printf("ERROR: %s: unhandled bn case (%d)\n", __func__, bo); \ - SET_RETVAL(EXCP_INVAL); \ + RET_INVAL(); \ break; \ } \ } \ } \ - SET_RETVAL(EXCP_BRANCH); \ + ctx->exception = EXCP_BRANCH; \ } /* b ba bl bla */ @@ -1548,14 +1614,20 @@ GEN_HANDLER(b, 0x12, 0xFF, 0xFF, 0x00000000, PPC_FLOW) { uint32_t li = s_ext24(LI(ctx->opcode)), target; + gen_op_update_tb(ctx->tb_offset); + gen_op_update_decr(ctx->decr_offset); + gen_op_process_exceptions((uint32_t)ctx->nip - 4); if (AA(ctx->opcode) == 0) target = (uint32_t)ctx->nip + li - 4; else - target = s_ext24(LI(ctx->opcode)); + target = li; +// gen_op_set_T1((uint32_t)ctx->tb); + if (LK(ctx->opcode)) { + gen_op_bl(target, (uint32_t)ctx->nip); + } else { gen_op_b(target); - if (LK(ctx->opcode)) - gen_op_load_lr((uint32_t)ctx->nip); - SET_RETVAL(EXCP_BRANCH); + } + ctx->exception = EXCP_BRANCH; } /* bc bca bcl bcla */ @@ -1573,6 +1645,7 @@ GEN_BCOND(bc, 0x10, 0xFF, 0xFF, gen_op_bl_ctrz((uint32_t)ctx->nip, target), gen_op_b_ctrz((uint32_t)ctx->nip, target), gen_op_b(target), + gen_op_bl(target, (uint32_t)ctx->nip), gen_op_bl_ctr_true((uint32_t)ctx->nip, target, mask), gen_op_b_ctr_true((uint32_t)ctx->nip, target, mask), gen_op_bl_ctrz_true((uint32_t)ctx->nip, target, mask), @@ -1593,6 +1666,7 @@ GEN_BCOND(bcctr, 0x13, 0x10, 0x10, do { } while (0), gen_op_bctrl_ctrz((uint32_t)ctx->nip), gen_op_bctr_ctrz((uint32_t)ctx->nip), gen_op_bctr(), + gen_op_bctrl((uint32_t)ctx->nip), gen_op_bctrl_ctr_true((uint32_t)ctx->nip, mask), gen_op_bctr_ctr_true((uint32_t)ctx->nip, mask), gen_op_bctrl_ctrz_true((uint32_t)ctx->nip, mask), @@ -1613,6 +1687,7 @@ GEN_BCOND(bclr, 0x13, 0x10, 0x00, do { } while (0), gen_op_blrl_ctrz((uint32_t)ctx->nip), gen_op_blr_ctrz((uint32_t)ctx->nip), gen_op_blr(), + gen_op_blrl((uint32_t)ctx->nip), gen_op_blrl_ctr_true((uint32_t)ctx->nip, mask), gen_op_blr_ctr_true((uint32_t)ctx->nip, mask), gen_op_blrl_ctrz_true((uint32_t)ctx->nip, mask), @@ -1639,7 +1714,6 @@ GEN_HANDLER(cr##op, 0x13, 0x01, opc, 0x00000001, PPC_INTEGER) \ gen_op_setcrfbit(~(1 << (3 - (crbD(ctx->opcode) & 0x03))), \ 3 - (crbD(ctx->opcode) & 0x03)); \ gen_op_store_T1_crf(crbD(ctx->opcode) >> 2); \ - SET_RETVAL(0); \ } /* crand */ @@ -1663,34 +1737,53 @@ GEN_HANDLER(mcrf, 0x13, 0x00, 0xFF, 0x00000001, PPC_INTEGER) { gen_op_load_crf_T0(crfS(ctx->opcode)); gen_op_store_T0_crf(crfD(ctx->opcode)); - SET_RETVAL(0); } /*** System linkage ***/ /* rfi (supervisor only) */ GEN_HANDLER(rfi, 0x13, 0x12, 0xFF, 0x03FF8001, PPC_FLOW) { - SET_RETVAL(EXCP_INVAL); +#if defined(CONFIG_USER_ONLY) + RET_PRIVOPC(); +#else + /* Restore CPU state */ + if (!ctx->supervisor) { + RET_PRIVOPC(); + } + gen_op_rfi(); + ctx->exception = EXCP_RFI; +#endif } /* sc */ GEN_HANDLER(sc, 0x11, 0xFF, 0xFF, 0x03FFFFFD, PPC_FLOW) { - gen_op_b((uint32_t)ctx->nip); - SET_RETVAL(EXCP_SYSCALL); +#if defined(CONFIG_USER_ONLY) + gen_op_queue_exception(EXCP_SYSCALL_USER); +#else + gen_op_queue_exception(EXCP_SYSCALL); +#endif + ctx->exception = EXCP_SYSCALL; } /*** Trap ***/ /* tw */ GEN_HANDLER(tw, 0x1F, 0x04, 0xFF, 0x00000001, PPC_FLOW) { - SET_RETVAL(EXCP_INVAL); + gen_op_load_gpr_T0(rA(ctx->opcode)); + gen_op_load_gpr_T1(rB(ctx->opcode)); + gen_op_tw(TO(ctx->opcode)); } /* twi */ GEN_HANDLER(twi, 0x03, 0xFF, 0xFF, 0x00000000, PPC_FLOW) { - SET_RETVAL(EXCP_INVAL); + gen_op_load_gpr_T0(rA(ctx->opcode)); +#if 0 + printf("%s: param=0x%04x T0=0x%04x\n", __func__, + SIMM(ctx->opcode), TO(ctx->opcode)); +#endif + gen_op_twi(SIMM(ctx->opcode), TO(ctx->opcode)); } /*** Processor control ***/ @@ -1698,6 +1791,21 @@ static inline int check_spr_access (int spr, int rw, int supervisor) { uint32_t rights = spr_access[spr >> 1] >> (4 * (spr & 1)); +#if 0 + if (spr != LR && spr != CTR) { + if (loglevel > 0) { + fprintf(logfile, "%s reg=%d s=%d rw=%d r=0x%02x 0x%02x\n", __func__, + SPR_ENCODE(spr), supervisor, rw, rights, + (rights >> ((2 * supervisor) + rw)) & 1); + } else { + printf("%s reg=%d s=%d rw=%d r=0x%02x 0x%02x\n", __func__, + SPR_ENCODE(spr), supervisor, rw, rights, + (rights >> ((2 * supervisor) + rw)) & 1); + } + } +#endif + if (rights == 0) + return -1; rights = rights >> (2 * supervisor); rights = rights >> rw; @@ -1710,7 +1818,6 @@ GEN_HANDLER(mcrxr, 0x1F, 0x00, 0x10, 0x007FF801, PPC_MISC) gen_op_load_xer_cr(); gen_op_store_T0_crf(crfD(ctx->opcode)); gen_op_clear_xer_cr(); - SET_RETVAL(0); } /* mfcr */ @@ -1718,17 +1825,20 @@ GEN_HANDLER(mfcr, 0x1F, 0x13, 0x00, 0x001FF801, PPC_MISC) { gen_op_load_cr(); gen_op_store_T0_gpr(rD(ctx->opcode)); - SET_RETVAL(0); } /* mfmsr */ GEN_HANDLER(mfmsr, 0x1F, 0x13, 0x02, 0x001FF801, PPC_MISC) { - if (!ctx->supervisor) - SET_RETVAL(EXCP_PRIV); +#if defined(CONFIG_USER_ONLY) + RET_PRIVREG(); +#else + if (!ctx->supervisor) { + RET_PRIVREG(); + } gen_op_load_msr(); gen_op_store_T0_gpr(rD(ctx->opcode)); - SET_RETVAL(0); +#endif } /* mfspr */ @@ -1736,31 +1846,150 @@ GEN_HANDLER(mfspr, 0x1F, 0x13, 0x0A, 0x00000001, PPC_MISC) { uint32_t sprn = SPR(ctx->opcode); - if (check_spr_access(sprn, 0, ctx->supervisor) == 0) - SET_RETVAL(EXCP_PRIV); - /* XXX: make this more generic */ - switch (sprn) { - case SPR_ENCODE(1): - if (loglevel > 0) { - fprintf(logfile, "LOAD XER at %p\n", ctx->nip - 1); +#if defined(CONFIG_USER_ONLY) + switch (check_spr_access(sprn, 0, 0)) +#else + switch (check_spr_access(sprn, 0, ctx->supervisor)) +#endif + { + case -1: + RET_EXCP(EXCP_PROGRAM, EXCP_INVAL | EXCP_INVAL_SPR); + break; + case 0: + RET_PRIVREG(); + break; + default: + break; } + switch (sprn) { + case XER: gen_op_load_xer(); break; - case SPR_ENCODE(268): - /* We need to update the time base before reading it */ + case LR: + gen_op_load_lr(); + break; + case CTR: + gen_op_load_ctr(); + break; + case IBAT0U: + gen_op_load_ibat(0, 0); + break; + case IBAT1U: + gen_op_load_ibat(0, 1); + break; + case IBAT2U: + gen_op_load_ibat(0, 2); + break; + case IBAT3U: + gen_op_load_ibat(0, 3); + break; + case IBAT4U: + gen_op_load_ibat(0, 4); + break; + case IBAT5U: + gen_op_load_ibat(0, 5); + break; + case IBAT6U: + gen_op_load_ibat(0, 6); + break; + case IBAT7U: + gen_op_load_ibat(0, 7); + break; + case IBAT0L: + gen_op_load_ibat(1, 0); + break; + case IBAT1L: + gen_op_load_ibat(1, 1); + break; + case IBAT2L: + gen_op_load_ibat(1, 2); + break; + case IBAT3L: + gen_op_load_ibat(1, 3); + break; + case IBAT4L: + gen_op_load_ibat(1, 4); + break; + case IBAT5L: + gen_op_load_ibat(1, 5); + break; + case IBAT6L: + gen_op_load_ibat(1, 6); + break; + case IBAT7L: + gen_op_load_ibat(1, 7); + break; + case DBAT0U: + gen_op_load_dbat(0, 0); + break; + case DBAT1U: + gen_op_load_dbat(0, 1); + break; + case DBAT2U: + gen_op_load_dbat(0, 2); + break; + case DBAT3U: + gen_op_load_dbat(0, 3); + break; + case DBAT4U: + gen_op_load_dbat(0, 4); + break; + case DBAT5U: + gen_op_load_dbat(0, 5); + break; + case DBAT6U: + gen_op_load_dbat(0, 6); + break; + case DBAT7U: + gen_op_load_dbat(0, 7); + break; + case DBAT0L: + gen_op_load_dbat(1, 0); + break; + case DBAT1L: + gen_op_load_dbat(1, 1); + break; + case DBAT2L: + gen_op_load_dbat(1, 2); + break; + case DBAT3L: + gen_op_load_dbat(1, 3); + break; + case DBAT4L: + gen_op_load_dbat(1, 4); + break; + case DBAT5L: + gen_op_load_dbat(1, 5); + break; + case DBAT6L: + gen_op_load_dbat(1, 6); + break; + case DBAT7L: + gen_op_load_dbat(1, 7); + break; + case SDR1: + gen_op_load_sdr1(); + break; + case V_TBL: gen_op_update_tb(ctx->tb_offset); ctx->tb_offset = 0; + /* TBL is still in T0 */ break; - case SPR_ENCODE(269): + case V_TBU: gen_op_update_tb(ctx->tb_offset); ctx->tb_offset = 0; + gen_op_load_tb(1); + break; + case DECR: + gen_op_update_decr(ctx->decr_offset); + ctx->decr_offset = 0; + /* decr is still in T0 */ break; default: gen_op_load_spr(sprn); break; } - gen_op_store_T0_gpr(rD(ctx->opcode)); // - SET_RETVAL(0); + gen_op_store_T0_gpr(rD(ctx->opcode)); } /* mftb */ @@ -1768,23 +1997,22 @@ GEN_HANDLER(mftb, 0x1F, 0x13, 0x0B, 0x00000001, PPC_MISC) { uint32_t sprn = SPR(ctx->opcode); - if (check_spr_access(sprn, 0, ctx->supervisor) == 0) - SET_RETVAL(EXCP_PRIV); - switch (sprn) { - case SPR_ENCODE(268): /* We need to update the time base before reading it */ + switch (sprn) { + case V_TBL: gen_op_update_tb(ctx->tb_offset); - ctx->tb_offset = 0; + /* TBL is still in T0 */ break; - case SPR_ENCODE(269): + case V_TBU: gen_op_update_tb(ctx->tb_offset); - ctx->tb_offset = 0; + gen_op_load_tb(1); break; default: - SET_RETVAL(EXCP_INVAL); + RET_INVAL(); break; } - SET_RETVAL(0); + ctx->tb_offset = 0; + gen_op_store_T0_gpr(rD(ctx->opcode)); } /* mtcrf */ @@ -1792,18 +2020,22 @@ GEN_HANDLER(mtcrf, 0x1F, 0x10, 0x04, 0x00100801, PPC_MISC) { gen_op_load_gpr_T0(rS(ctx->opcode)); gen_op_store_cr(CRM(ctx->opcode)); - SET_RETVAL(0); } /* mtmsr */ GEN_HANDLER(mtmsr, 0x1F, 0x12, 0x04, 0x001FF801, PPC_MISC) { - if (!ctx->supervisor) - SET_RETVAL(EXCP_PRIV); +#if defined(CONFIG_USER_ONLY) + RET_PRIVREG(); +#else + if (!ctx->supervisor) { + RET_PRIVREG(); + } gen_op_load_gpr_T0(rS(ctx->opcode)); gen_op_store_msr(); /* Must stop the translation as machine state (may have) changed */ - SET_RETVAL(EXCP_MTMSR); + ctx->exception = EXCP_MTMSR; +#endif } /* mtspr */ @@ -1811,84 +2043,265 @@ GEN_HANDLER(mtspr, 0x1F, 0x13, 0x0E, 0x00000001, PPC_MISC) { uint32_t sprn = SPR(ctx->opcode); - if (check_spr_access(sprn, 1, ctx->supervisor) == 0) - SET_RETVAL(EXCP_PRIV); +#if 0 + if (loglevel > 0) { + fprintf(logfile, "MTSPR %d src=%d (%d)\n", SPR_ENCODE(sprn), + rS(ctx->opcode), sprn); + } +#endif +#if defined(CONFIG_USER_ONLY) + switch (check_spr_access(sprn, 1, 0)) +#else + switch (check_spr_access(sprn, 1, ctx->supervisor)) +#endif + { + case -1: + RET_EXCP(EXCP_PROGRAM, EXCP_INVAL | EXCP_INVAL_SPR); + break; + case 0: + RET_PRIVREG(); + break; + default: + break; + } gen_op_load_gpr_T0(rS(ctx->opcode)); - if (sprn == SPR_ENCODE(1)) { + switch (sprn) { + case XER: gen_op_store_xer(); - } else { + break; + case LR: + gen_op_andi_(~0x03); + gen_op_store_lr(); + break; + case CTR: + gen_op_store_ctr(); + break; + case IBAT0U: + gen_op_store_ibat(0, 0); + gen_op_tlbia(); + break; + case IBAT1U: + gen_op_store_ibat(0, 1); + gen_op_tlbia(); + break; + case IBAT2U: + gen_op_store_ibat(0, 2); + gen_op_tlbia(); + break; + case IBAT3U: + gen_op_store_ibat(0, 3); + gen_op_tlbia(); + break; + case IBAT4U: + gen_op_store_ibat(0, 4); + gen_op_tlbia(); + break; + case IBAT5U: + gen_op_store_ibat(0, 5); + gen_op_tlbia(); + break; + case IBAT6U: + gen_op_store_ibat(0, 6); + gen_op_tlbia(); + break; + case IBAT7U: + gen_op_store_ibat(0, 7); + gen_op_tlbia(); + break; + case IBAT0L: + gen_op_store_ibat(1, 0); + gen_op_tlbia(); + break; + case IBAT1L: + gen_op_store_ibat(1, 1); + gen_op_tlbia(); + break; + case IBAT2L: + gen_op_store_ibat(1, 2); + gen_op_tlbia(); + break; + case IBAT3L: + gen_op_store_ibat(1, 3); + gen_op_tlbia(); + break; + case IBAT4L: + gen_op_store_ibat(1, 4); + gen_op_tlbia(); + break; + case IBAT5L: + gen_op_store_ibat(1, 5); + gen_op_tlbia(); + break; + case IBAT6L: + gen_op_store_ibat(1, 6); + gen_op_tlbia(); + break; + case IBAT7L: + gen_op_store_ibat(1, 7); + gen_op_tlbia(); + break; + case DBAT0U: + gen_op_store_dbat(0, 0); + gen_op_tlbia(); + break; + case DBAT1U: + gen_op_store_dbat(0, 1); + gen_op_tlbia(); + break; + case DBAT2U: + gen_op_store_dbat(0, 2); + gen_op_tlbia(); + break; + case DBAT3U: + gen_op_store_dbat(0, 3); + gen_op_tlbia(); + break; + case DBAT4U: + gen_op_store_dbat(0, 4); + gen_op_tlbia(); + break; + case DBAT5U: + gen_op_store_dbat(0, 5); + gen_op_tlbia(); + break; + case DBAT6U: + gen_op_store_dbat(0, 6); + gen_op_tlbia(); + break; + case DBAT7U: + gen_op_store_dbat(0, 7); + gen_op_tlbia(); + break; + case DBAT0L: + gen_op_store_dbat(1, 0); + gen_op_tlbia(); + break; + case DBAT1L: + gen_op_store_dbat(1, 1); + gen_op_tlbia(); + break; + case DBAT2L: + gen_op_store_dbat(1, 2); + gen_op_tlbia(); + break; + case DBAT3L: + gen_op_store_dbat(1, 3); + gen_op_tlbia(); + break; + case DBAT4L: + gen_op_store_dbat(1, 4); + gen_op_tlbia(); + break; + case DBAT5L: + gen_op_store_dbat(1, 5); + gen_op_tlbia(); + break; + case DBAT6L: + gen_op_store_dbat(1, 6); + gen_op_tlbia(); + break; + case DBAT7L: + gen_op_store_dbat(1, 7); + gen_op_tlbia(); + break; + case SDR1: + gen_op_store_sdr1(); + gen_op_tlbia(); + break; + case O_TBL: + gen_op_store_tb(0); + ctx->tb_offset = 0; + break; + case O_TBU: + gen_op_store_tb(1); + ctx->tb_offset = 0; + break; + case DECR: + gen_op_store_decr(); + ctx->decr_offset = 0; + break; + default: gen_op_store_spr(sprn); + break; } - SET_RETVAL(0); } /*** Cache management ***/ /* For now, all those will be implemented as nop: * this is valid, regarding the PowerPC specs... + * We just have to flush tb while invalidating instruction cache lines... */ /* dcbf */ -GEN_HANDLER(dcbf, 0x1F, 0x16, 0x17, 0x03E00001, PPC_MEM) +GEN_HANDLER(dcbf, 0x1F, 0x16, 0x02, 0x03E00001, PPC_CACHE) { - SET_RETVAL(0); } /* dcbi (Supervisor only) */ -GEN_HANDLER(dcbi, 0x1F, 0x16, 0x1F, 0x03E00001, PPC_MEM) +GEN_HANDLER(dcbi, 0x1F, 0x16, 0x0E, 0x03E00001, PPC_CACHE) { - SET_RETVAL(0); +#if !defined(CONFIG_USER_ONLY) + if (!ctx->supervisor) +#endif + { + RET_PRIVOPC(); + } } /* dcdst */ -GEN_HANDLER(dcbst, 0x1F, 0x16, 0x0E, 0x03E00001, PPC_MEM) +GEN_HANDLER(dcbst, 0x1F, 0x16, 0x01, 0x03E00001, PPC_CACHE) { - SET_RETVAL(0); } /* dcbt */ -GEN_HANDLER(dcbt, 0x1F, 0x16, 0x01, 0x03E00001, PPC_MEM) +GEN_HANDLER(dcbt, 0x1F, 0x16, 0x08, 0x03E00001, PPC_CACHE) { - SET_RETVAL(0); } /* dcbtst */ -GEN_HANDLER(dcbtst, 0x1F, 0x16, 0x02, 0x03E00001, PPC_MEM) +GEN_HANDLER(dcbtst, 0x1F, 0x16, 0x07, 0x03E00001, PPC_CACHE) { - SET_RETVAL(0); } /* dcbz */ -GEN_HANDLER(dcbz, 0x1F, 0x16, 0x08, 0x03E00001, PPC_MEM) +#if defined(CONFIG_USER_ONLY) +#define op_dcbz() gen_op_dcbz_raw() +#else +#define op_dcbz() (*gen_op_dcbz[ctx->mem_idx])() +static GenOpFunc *gen_op_dcbz[] = { + &gen_op_dcbz_user, + &gen_op_dcbz_kernel, +}; +#endif + +GEN_HANDLER(dcbz, 0x1F, 0x16, 0x1F, 0x03E00001, PPC_CACHE) { if (rA(ctx->opcode) == 0) { gen_op_load_gpr_T0(rB(ctx->opcode)); - gen_op_dcbz_z(); } else { gen_op_load_gpr_T0(rA(ctx->opcode)); gen_op_load_gpr_T1(rB(ctx->opcode)); - gen_op_dcbz(); + gen_op_add(); } - SET_RETVAL(0); + op_dcbz(); } /* icbi */ -GEN_HANDLER(icbi, 0x1F, 0x16, 0x1E, 0x03E00001, PPC_MEM) +GEN_HANDLER(icbi, 0x1F, 0x16, 0x1E, 0x03E00001, PPC_CACHE) { if (rA(ctx->opcode) == 0) { gen_op_load_gpr_T0(rB(ctx->opcode)); - gen_op_icbi_z(); } else { gen_op_load_gpr_T0(rA(ctx->opcode)); gen_op_load_gpr_T1(rB(ctx->opcode)); - gen_op_icbi(); + gen_op_add(); } - SET_RETVAL(0); + gen_op_icbi(); } /* Optional: */ /* dcba */ -GEN_HANDLER(dcba, 0x1F, 0x16, 0x07, 0x03E00001, PPC_MEM) +GEN_HANDLER(dcba, 0x1F, 0x16, 0x07, 0x03E00001, PPC_CACHE_OPT) { - SET_RETVAL(0); } /*** Segment register manipulation ***/ @@ -1896,70 +2309,163 @@ GEN_HANDLER(dcba, 0x1F, 0x16, 0x07, 0x03E00001, PPC_MEM) /* mfsr */ GEN_HANDLER(mfsr, 0x1F, 0x13, 0x12, 0x0010F801, PPC_SEGMENT) { - SET_RETVAL(EXCP_INVAL); +#if defined(CONFIG_USER_ONLY) + RET_PRIVREG(); +#else + if (!ctx->supervisor) { + RET_PRIVREG(); + } + gen_op_load_sr(SR(ctx->opcode)); + gen_op_store_T0_gpr(rD(ctx->opcode)); +#endif } /* mfsrin */ -GEN_HANDLER(mfsrin, 0x1F, 0x13, 0x14, 0x0010F001, PPC_SEGMENT) +GEN_HANDLER(mfsrin, 0x1F, 0x13, 0x14, 0x001F0001, PPC_SEGMENT) { - SET_RETVAL(EXCP_INVAL); +#if defined(CONFIG_USER_ONLY) + RET_PRIVREG(); +#else + if (!ctx->supervisor) { + RET_PRIVREG(); + } + gen_op_load_gpr_T1(rB(ctx->opcode)); + gen_op_load_srin(); + gen_op_store_T0_gpr(rD(ctx->opcode)); +#endif } /* mtsr */ GEN_HANDLER(mtsr, 0x1F, 0x12, 0x02, 0x0010F801, PPC_SEGMENT) { - SET_RETVAL(EXCP_INVAL); +#if defined(CONFIG_USER_ONLY) + RET_PRIVREG(); +#else + if (!ctx->supervisor) { + RET_PRIVREG(); + } + gen_op_load_gpr_T0(rS(ctx->opcode)); + gen_op_store_sr(SR(ctx->opcode)); + gen_op_tlbia(); +#endif } /* mtsrin */ -GEN_HANDLER(mtsrin, 0x1F, 0x12, 0x07, 0x0010F001, PPC_SEGMENT) +GEN_HANDLER(mtsrin, 0x1F, 0x12, 0x07, 0x001F0001, PPC_SEGMENT) { - SET_RETVAL(EXCP_INVAL); +#if defined(CONFIG_USER_ONLY) + RET_PRIVREG(); +#else + if (!ctx->supervisor) { + RET_PRIVREG(); + } + gen_op_load_gpr_T0(rS(ctx->opcode)); + gen_op_load_gpr_T1(rB(ctx->opcode)); + gen_op_store_srin(); + gen_op_tlbia(); +#endif } /*** Lookaside buffer management ***/ /* Optional & supervisor only: */ /* tlbia */ -GEN_HANDLER(tlbia, 0x1F, 0x12, 0x0B, 0x03FFFC01, PPC_MEM) +GEN_HANDLER(tlbia, 0x1F, 0x12, 0x0B, 0x03FFFC01, PPC_MEM_OPT) { - SET_RETVAL(EXCP_INVAL); +#if defined(CONFIG_USER_ONLY) + RET_PRIVOPC(); +#else + if (!ctx->supervisor) { + RET_PRIVOPC(); + } + gen_op_tlbia(); +#endif } /* tlbie */ -GEN_HANDLER(tlbie, 0x1F, 0x12, 0x09, 0x03FF8001, PPC_MEM) +GEN_HANDLER(tlbie, 0x1F, 0x12, 0x09, 0x03FF0001, PPC_MEM) { - SET_RETVAL(EXCP_INVAL); +#if defined(CONFIG_USER_ONLY) + RET_PRIVOPC(); +#else + if (!ctx->supervisor) { + RET_PRIVOPC(); + } + gen_op_load_gpr_T0(rB(ctx->opcode)); + gen_op_tlbie(); +#endif } /* tlbsync */ GEN_HANDLER(tlbsync, 0x1F, 0x16, 0x11, 0x03FFFC01, PPC_MEM) { - SET_RETVAL(EXCP_INVAL); +#if defined(CONFIG_USER_ONLY) + RET_PRIVOPC(); +#else + if (!ctx->supervisor) { + RET_PRIVOPC(); + } + /* This has no effect: it should ensure that all previous + * tlbie have completed + */ +#endif } /*** External control ***/ /* Optional: */ /* eciwx */ +#if defined(CONFIG_USER_ONLY) +#define op_eciwx() gen_op_eciwx_raw() +#define op_ecowx() gen_op_ecowx_raw() +#else +#define op_eciwx() (*gen_op_eciwx[ctx->mem_idx])() +#define op_ecowx() (*gen_op_ecowx[ctx->mem_idx])() +static GenOpFunc *gen_op_eciwx[] = { + &gen_op_eciwx_user, + &gen_op_eciwx_kernel, +}; +static GenOpFunc *gen_op_ecowx[] = { + &gen_op_ecowx_user, + &gen_op_ecowx_kernel, +}; +#endif + GEN_HANDLER(eciwx, 0x1F, 0x16, 0x0D, 0x00000001, PPC_EXTERN) { - SET_RETVAL(EXCP_INVAL); + /* Should check EAR[E] & alignment ! */ + if (rA(ctx->opcode) == 0) { + gen_op_load_gpr_T0(rB(ctx->opcode)); + } else { + gen_op_load_gpr_T0(rA(ctx->opcode)); + gen_op_load_gpr_T1(rB(ctx->opcode)); + gen_op_add(); + } + op_eciwx(); + gen_op_store_T0_gpr(rD(ctx->opcode)); } /* ecowx */ GEN_HANDLER(ecowx, 0x1F, 0x16, 0x09, 0x00000001, PPC_EXTERN) { - SET_RETVAL(EXCP_INVAL); + /* Should check EAR[E] & alignment ! */ + if (rA(ctx->opcode) == 0) { + gen_op_load_gpr_T0(rB(ctx->opcode)); + } else { + gen_op_load_gpr_T0(rA(ctx->opcode)); + gen_op_load_gpr_T1(rB(ctx->opcode)); + gen_op_add(); + } + gen_op_load_gpr_T2(rS(ctx->opcode)); + op_ecowx(); } /* End opcode list */ GEN_OPCODE_MARK(end); /*****************************************************************************/ - +#include #include -extern FILE *stderr; -void free (void *p); -int fflush (FILE *f); + +int fflush (FILE *stream); /* Main ppc opcodes table: * at init, all opcodes are invalids @@ -1982,6 +2488,7 @@ static inline opc_handler_t **ind_table(void *handler) return (opc_handler_t **)((unsigned long)handler & ~3); } +/* Instruction table creation */ /* Opcodes tables creation */ static void fill_new_table (opc_handler_t **table, int len) { @@ -2014,10 +2521,11 @@ static int insert_in_table (opc_handler_t **table, unsigned char idx, return 0; } -static int register_direct_insn (unsigned char idx, opc_handler_t *handler) +static int register_direct_insn (opc_handler_t **ppc_opcodes, + unsigned char idx, opc_handler_t *handler) { if (insert_in_table(ppc_opcodes, idx, handler) < 0) { - fprintf(stderr, "*** ERROR: opcode %02x already assigned in main " + printf("*** ERROR: opcode %02x already assigned in main " "opcode table\n", idx); return -1; } @@ -2031,20 +2539,20 @@ static int register_ind_in_table (opc_handler_t **table, { if (table[idx1] == &invalid_handler) { if (create_new_table(table, idx1) < 0) { - fprintf(stderr, "*** ERROR: unable to create indirect table " + printf("*** ERROR: unable to create indirect table " "idx=%02x\n", idx1); return -1; } } else { if (!is_indirect_opcode(table[idx1])) { - fprintf(stderr, "*** ERROR: idx %02x already assigned to a direct " + printf("*** ERROR: idx %02x already assigned to a direct " "opcode\n", idx1); return -1; } } if (handler != NULL && insert_in_table(ind_table(table[idx1]), idx2, handler) < 0) { - fprintf(stderr, "*** ERROR: opcode %02x already assigned in " + printf("*** ERROR: opcode %02x already assigned in " "opcode table %02x\n", idx2, idx1); return -1; } @@ -2052,7 +2560,8 @@ static int register_ind_in_table (opc_handler_t **table, return 0; } -static int register_ind_insn (unsigned char idx1, unsigned char idx2, +static int register_ind_insn (opc_handler_t **ppc_opcodes, + unsigned char idx1, unsigned char idx2, opc_handler_t *handler) { int ret; @@ -2062,17 +2571,18 @@ static int register_ind_insn (unsigned char idx1, unsigned char idx2, return ret; } -static int register_dblind_insn (unsigned char idx1, unsigned char idx2, +static int register_dblind_insn (opc_handler_t **ppc_opcodes, + unsigned char idx1, unsigned char idx2, unsigned char idx3, opc_handler_t *handler) { if (register_ind_in_table(ppc_opcodes, idx1, idx2, NULL) < 0) { - fprintf(stderr, "*** ERROR: unable to join indirect table idx " + printf("*** ERROR: unable to join indirect table idx " "[%02x-%02x]\n", idx1, idx2); return -1; } if (register_ind_in_table(ind_table(ppc_opcodes[idx1]), idx2, idx3, handler) < 0) { - fprintf(stderr, "*** ERROR: unable to insert opcode " + printf("*** ERROR: unable to insert opcode " "[%02x-%02x-%02x]\n", idx1, idx2, idx3); return -1; } @@ -2080,19 +2590,20 @@ static int register_dblind_insn (unsigned char idx1, unsigned char idx2, return 0; } -static int register_insn (opcode_t *insn) +static int register_insn (opc_handler_t **ppc_opcodes, opcode_t *insn) { if (insn->opc2 != 0xFF) { if (insn->opc3 != 0xFF) { - if (register_dblind_insn(insn->opc1, insn->opc2, insn->opc3, - &insn->handler) < 0) + if (register_dblind_insn(ppc_opcodes, insn->opc1, insn->opc2, + insn->opc3, &insn->handler) < 0) return -1; } else { - if (register_ind_insn(insn->opc1, insn->opc2, &insn->handler) < 0) + if (register_ind_insn(ppc_opcodes, insn->opc1, + insn->opc2, &insn->handler) < 0) return -1; } } else { - if (register_direct_insn(insn->opc1, &insn->handler) < 0) + if (register_direct_insn(ppc_opcodes, insn->opc1, &insn->handler) < 0) return -1; } @@ -2125,13 +2636,13 @@ static int test_opcode_table (opc_handler_t **table, int len) return count; } -static void fix_opcode_tables (void) +static void fix_opcode_tables (opc_handler_t **ppc_opcodes) { if (test_opcode_table(ppc_opcodes, 0x40) == 0) - fprintf(stderr, "*** WARNING: no opcode defined !\n"); + printf("*** WARNING: no opcode defined !\n"); } -#define SPR_RIGHTS(rw, priv) ((2 * (priv)) + (rw)) +#define SPR_RIGHTS(rw, priv) (1 << ((2 * (priv)) + (rw))) #define SPR_UR SPR_RIGHTS(0, 0) #define SPR_UW SPR_RIGHTS(1, 0) #define SPR_SR SPR_RIGHTS(0, 1) @@ -2142,87 +2653,199 @@ do { \ spr_access[(spr) >> 1] |= ((rights) << (4 * ((spr) & 1))); \ } while (0) -static void init_spr_rights (void) +static void init_spr_rights (uint32_t pvr) { /* XER (SPR 1) */ - spr_set_rights(SPR_ENCODE(1), SPR_UR | SPR_UW | SPR_SR | SPR_SW); + spr_set_rights(XER, SPR_UR | SPR_UW | SPR_SR | SPR_SW); /* LR (SPR 8) */ - spr_set_rights(SPR_ENCODE(8), SPR_UR | SPR_UW | SPR_SR | SPR_SW); + spr_set_rights(LR, SPR_UR | SPR_UW | SPR_SR | SPR_SW); /* CTR (SPR 9) */ - spr_set_rights(SPR_ENCODE(9), SPR_UR | SPR_UW | SPR_SR | SPR_SW); + spr_set_rights(CTR, SPR_UR | SPR_UW | SPR_SR | SPR_SW); /* TBL (SPR 268) */ - spr_set_rights(SPR_ENCODE(268), SPR_UR | SPR_SR); + spr_set_rights(V_TBL, SPR_UR | SPR_SR); /* TBU (SPR 269) */ - spr_set_rights(SPR_ENCODE(269), SPR_UR | SPR_SR); + spr_set_rights(V_TBU, SPR_UR | SPR_SR); /* DSISR (SPR 18) */ - spr_set_rights(SPR_ENCODE(18), SPR_SR | SPR_SW); + spr_set_rights(DSISR, SPR_SR | SPR_SW); /* DAR (SPR 19) */ - spr_set_rights(SPR_ENCODE(19), SPR_SR | SPR_SW); + spr_set_rights(DAR, SPR_SR | SPR_SW); /* DEC (SPR 22) */ - spr_set_rights(SPR_ENCODE(22), SPR_SR | SPR_SW); + spr_set_rights(DECR, SPR_SR | SPR_SW); /* SDR1 (SPR 25) */ - spr_set_rights(SPR_ENCODE(25), SPR_SR | SPR_SW); + spr_set_rights(SDR1, SPR_SR | SPR_SW); + /* SRR0 (SPR 26) */ + spr_set_rights(SRR0, SPR_SR | SPR_SW); + /* SRR1 (SPR 27) */ + spr_set_rights(SRR1, SPR_SR | SPR_SW); /* SPRG0 (SPR 272) */ - spr_set_rights(SPR_ENCODE(272), SPR_SR | SPR_SW); + spr_set_rights(SPRG0, SPR_SR | SPR_SW); /* SPRG1 (SPR 273) */ - spr_set_rights(SPR_ENCODE(273), SPR_SR | SPR_SW); + spr_set_rights(SPRG1, SPR_SR | SPR_SW); /* SPRG2 (SPR 274) */ - spr_set_rights(SPR_ENCODE(274), SPR_SR | SPR_SW); + spr_set_rights(SPRG2, SPR_SR | SPR_SW); /* SPRG3 (SPR 275) */ - spr_set_rights(SPR_ENCODE(275), SPR_SR | SPR_SW); + spr_set_rights(SPRG3, SPR_SR | SPR_SW); /* ASR (SPR 280) */ - spr_set_rights(SPR_ENCODE(281), SPR_SR | SPR_SW); + spr_set_rights(ASR, SPR_SR | SPR_SW); /* EAR (SPR 282) */ - spr_set_rights(SPR_ENCODE(282), SPR_SR | SPR_SW); + spr_set_rights(EAR, SPR_SR | SPR_SW); + /* TBL (SPR 284) */ + spr_set_rights(O_TBL, SPR_SW); + /* TBU (SPR 285) */ + spr_set_rights(O_TBU, SPR_SW); + /* PVR (SPR 287) */ + spr_set_rights(PVR, SPR_SR); /* IBAT0U (SPR 528) */ - spr_set_rights(SPR_ENCODE(528), SPR_SR | SPR_SW); + spr_set_rights(IBAT0U, SPR_SR | SPR_SW); /* IBAT0L (SPR 529) */ - spr_set_rights(SPR_ENCODE(529), SPR_SR | SPR_SW); + spr_set_rights(IBAT0L, SPR_SR | SPR_SW); /* IBAT1U (SPR 530) */ - spr_set_rights(SPR_ENCODE(530), SPR_SR | SPR_SW); + spr_set_rights(IBAT1U, SPR_SR | SPR_SW); /* IBAT1L (SPR 531) */ - spr_set_rights(SPR_ENCODE(531), SPR_SR | SPR_SW); + spr_set_rights(IBAT1L, SPR_SR | SPR_SW); /* IBAT2U (SPR 532) */ - spr_set_rights(SPR_ENCODE(532), SPR_SR | SPR_SW); + spr_set_rights(IBAT2U, SPR_SR | SPR_SW); /* IBAT2L (SPR 533) */ - spr_set_rights(SPR_ENCODE(533), SPR_SR | SPR_SW); + spr_set_rights(IBAT2L, SPR_SR | SPR_SW); /* IBAT3U (SPR 534) */ - spr_set_rights(SPR_ENCODE(534), SPR_SR | SPR_SW); + spr_set_rights(IBAT3U, SPR_SR | SPR_SW); /* IBAT3L (SPR 535) */ - spr_set_rights(SPR_ENCODE(535), SPR_SR | SPR_SW); + spr_set_rights(IBAT3L, SPR_SR | SPR_SW); /* DBAT0U (SPR 536) */ - spr_set_rights(SPR_ENCODE(536), SPR_SR | SPR_SW); + spr_set_rights(DBAT0U, SPR_SR | SPR_SW); /* DBAT0L (SPR 537) */ - spr_set_rights(SPR_ENCODE(537), SPR_SR | SPR_SW); + spr_set_rights(DBAT0L, SPR_SR | SPR_SW); /* DBAT1U (SPR 538) */ - spr_set_rights(SPR_ENCODE(538), SPR_SR | SPR_SW); + spr_set_rights(DBAT1U, SPR_SR | SPR_SW); /* DBAT1L (SPR 539) */ - spr_set_rights(SPR_ENCODE(539), SPR_SR | SPR_SW); + spr_set_rights(DBAT1L, SPR_SR | SPR_SW); /* DBAT2U (SPR 540) */ - spr_set_rights(SPR_ENCODE(540), SPR_SR | SPR_SW); + spr_set_rights(DBAT2U, SPR_SR | SPR_SW); /* DBAT2L (SPR 541) */ - spr_set_rights(SPR_ENCODE(541), SPR_SR | SPR_SW); + spr_set_rights(DBAT2L, SPR_SR | SPR_SW); /* DBAT3U (SPR 542) */ - spr_set_rights(SPR_ENCODE(542), SPR_SR | SPR_SW); + spr_set_rights(DBAT3U, SPR_SR | SPR_SW); /* DBAT3L (SPR 543) */ - spr_set_rights(SPR_ENCODE(543), SPR_SR | SPR_SW); + spr_set_rights(DBAT3L, SPR_SR | SPR_SW); /* DABR (SPR 1013) */ - spr_set_rights(SPR_ENCODE(1013), SPR_SR | SPR_SW); + spr_set_rights(DABR, SPR_SR | SPR_SW); /* FPECR (SPR 1022) */ - spr_set_rights(SPR_ENCODE(1022), SPR_SR | SPR_SW); + spr_set_rights(FPECR, SPR_SR | SPR_SW); /* PIR (SPR 1023) */ - spr_set_rights(SPR_ENCODE(1023), SPR_SR | SPR_SW); - /* PVR (SPR 287) */ - spr_set_rights(SPR_ENCODE(287), SPR_SR); - /* TBL (SPR 284) */ - spr_set_rights(SPR_ENCODE(284), SPR_SW); - /* TBU (SPR 285) */ - spr_set_rights(SPR_ENCODE(285), SPR_SW); + spr_set_rights(PIR, SPR_SR | SPR_SW); + /* Special registers for MPC740/745/750/755 (aka G3) & IBM 750 */ + if ((pvr & 0xFFFF0000) == 0x00080000 || + (pvr & 0xFFFF0000) == 0x70000000) { + /* HID0 */ + spr_set_rights(SPR_ENCODE(1008), SPR_SR | SPR_SW); + /* HID1 */ + spr_set_rights(SPR_ENCODE(1009), SPR_SR | SPR_SW); + /* IABR */ + spr_set_rights(SPR_ENCODE(1010), SPR_SR | SPR_SW); + /* ICTC */ + spr_set_rights(SPR_ENCODE(1019), SPR_SR | SPR_SW); + /* L2CR */ + spr_set_rights(SPR_ENCODE(1017), SPR_SR | SPR_SW); + /* MMCR0 */ + spr_set_rights(SPR_ENCODE(952), SPR_SR | SPR_SW); + /* MMCR1 */ + spr_set_rights(SPR_ENCODE(956), SPR_SR | SPR_SW); + /* PMC1 */ + spr_set_rights(SPR_ENCODE(953), SPR_SR | SPR_SW); + /* PMC2 */ + spr_set_rights(SPR_ENCODE(954), SPR_SR | SPR_SW); + /* PMC3 */ + spr_set_rights(SPR_ENCODE(957), SPR_SR | SPR_SW); + /* PMC4 */ + spr_set_rights(SPR_ENCODE(958), SPR_SR | SPR_SW); + /* SIA */ + spr_set_rights(SPR_ENCODE(955), SPR_SR | SPR_SW); + /* THRM1 */ + spr_set_rights(SPR_ENCODE(1020), SPR_SR | SPR_SW); + /* THRM2 */ + spr_set_rights(SPR_ENCODE(1021), SPR_SR | SPR_SW); + /* THRM3 */ + spr_set_rights(SPR_ENCODE(1022), SPR_SR | SPR_SW); + /* UMMCR0 */ + spr_set_rights(SPR_ENCODE(936), SPR_UR | SPR_UW); + /* UMMCR1 */ + spr_set_rights(SPR_ENCODE(940), SPR_UR | SPR_UW); + /* UPMC1 */ + spr_set_rights(SPR_ENCODE(937), SPR_UR | SPR_UW); + /* UPMC2 */ + spr_set_rights(SPR_ENCODE(938), SPR_UR | SPR_UW); + /* UPMC3 */ + spr_set_rights(SPR_ENCODE(941), SPR_UR | SPR_UW); + /* UPMC4 */ + spr_set_rights(SPR_ENCODE(942), SPR_UR | SPR_UW); + /* USIA */ + spr_set_rights(SPR_ENCODE(939), SPR_UR | SPR_UW); + } + /* MPC755 has special registers */ + if (pvr == 0x00083100) { + /* SPRG4 */ + spr_set_rights(SPRG4, SPR_SR | SPR_SW); + /* SPRG5 */ + spr_set_rights(SPRG5, SPR_SR | SPR_SW); + /* SPRG6 */ + spr_set_rights(SPRG6, SPR_SR | SPR_SW); + /* SPRG7 */ + spr_set_rights(SPRG7, SPR_SR | SPR_SW); + /* IBAT4U */ + spr_set_rights(IBAT4U, SPR_SR | SPR_SW); + /* IBAT4L */ + spr_set_rights(IBAT4L, SPR_SR | SPR_SW); + /* IBAT5U */ + spr_set_rights(IBAT5U, SPR_SR | SPR_SW); + /* IBAT5L */ + spr_set_rights(IBAT5L, SPR_SR | SPR_SW); + /* IBAT6U */ + spr_set_rights(IBAT6U, SPR_SR | SPR_SW); + /* IBAT6L */ + spr_set_rights(IBAT6L, SPR_SR | SPR_SW); + /* IBAT7U */ + spr_set_rights(IBAT7U, SPR_SR | SPR_SW); + /* IBAT7L */ + spr_set_rights(IBAT7L, SPR_SR | SPR_SW); + /* DBAT4U */ + spr_set_rights(DBAT4U, SPR_SR | SPR_SW); + /* DBAT4L */ + spr_set_rights(DBAT4L, SPR_SR | SPR_SW); + /* DBAT5U */ + spr_set_rights(DBAT5U, SPR_SR | SPR_SW); + /* DBAT5L */ + spr_set_rights(DBAT5L, SPR_SR | SPR_SW); + /* DBAT6U */ + spr_set_rights(DBAT6U, SPR_SR | SPR_SW); + /* DBAT6L */ + spr_set_rights(DBAT6L, SPR_SR | SPR_SW); + /* DBAT7U */ + spr_set_rights(DBAT7U, SPR_SR | SPR_SW); + /* DBAT7L */ + spr_set_rights(DBAT7L, SPR_SR | SPR_SW); + /* DMISS */ + spr_set_rights(SPR_ENCODE(976), SPR_SR | SPR_SW); + /* DCMP */ + spr_set_rights(SPR_ENCODE(977), SPR_SR | SPR_SW); + /* DHASH1 */ + spr_set_rights(SPR_ENCODE(978), SPR_SR | SPR_SW); + /* DHASH2 */ + spr_set_rights(SPR_ENCODE(979), SPR_SR | SPR_SW); + /* IMISS */ + spr_set_rights(SPR_ENCODE(980), SPR_SR | SPR_SW); + /* ICMP */ + spr_set_rights(SPR_ENCODE(981), SPR_SR | SPR_SW); + /* RPA */ + spr_set_rights(SPR_ENCODE(982), SPR_SR | SPR_SW); + /* HID2 */ + spr_set_rights(SPR_ENCODE(1011), SPR_SR | SPR_SW); + /* L2PM */ + spr_set_rights(SPR_ENCODE(1016), SPR_SR | SPR_SW); + } } -/* PPC "main stream" common instructions */ -#define PPC_COMMON (PPC_INTEGER | PPC_FLOAT | PPC_FLOW | PPC_MEM | \ - PPC_MISC | PPC_EXTERN | PPC_SEGMENT) +/*****************************************************************************/ +/* PPC "main stream" common instructions (no optional ones) */ typedef struct ppc_proc_t { int flags; @@ -2240,9 +2863,26 @@ static ppc_proc_t ppc_proc_common = { .specific = NULL, }; +static ppc_proc_t ppc_proc_G3 = { + .flags = PPC_750, + .specific = NULL, +}; + static ppc_def_t ppc_defs[] = { - /* Fallback */ + /* MPC740/745/750/755 (G3) */ + { + .pvr = 0x00080000, + .pvr_mask = 0xFFFF0000, + .proc = &ppc_proc_G3, + }, + /* IBM 750FX (G3 embedded) */ + { + .pvr = 0x70000000, + .pvr_mask = 0xFFFF0000, + .proc = &ppc_proc_G3, + }, + /* Fallback (generic PPC) */ { .pvr = 0x00000000, .pvr_mask = 0x00000000, @@ -2250,7 +2890,7 @@ static ppc_def_t ppc_defs[] = }, }; -static int create_ppc_proc (unsigned long pvr) +static int create_ppc_proc (opc_handler_t **ppc_opcodes, unsigned long pvr) { opcode_t *opc; int i, flags; @@ -2265,65 +2905,71 @@ static int create_ppc_proc (unsigned long pvr) } for (opc = &opc_start + 1; opc != &opc_end; opc++) { - if ((opc->type & flags) != 0) - if (register_insn(opc) < 0) { - fprintf(stderr, "*** ERROR initializing PPC instruction " + if ((opc->handler.type & flags) != 0) + if (register_insn(ppc_opcodes, opc) < 0) { + printf("*** ERROR initializing PPC instruction " "0x%02x 0x%02x 0x%02x\n", opc->opc1, opc->opc2, opc->opc3); return -1; } } - fix_opcode_tables(); + fix_opcode_tables(ppc_opcodes); return 0; } + /*****************************************************************************/ -uint32_t do_load_xer (void); +/* Misc PPC helpers */ +FILE *stdout; void cpu_ppc_dump_state(CPUPPCState *env, FILE *f, int flags) { int i; - if (loglevel > 0) { - fprintf(logfile, "nip=0x%08x LR=0x%08x CTR=0x%08x XER=0x%08x\n", - env->nip, env->LR, env->CTR, do_load_xer()); + fprintf(f, "nip=0x%08x LR=0x%08x CTR=0x%08x XER=0x%08x " + "MSR=0x%08x\n", env->nip, env->lr, env->ctr, + _load_xer(), _load_msr()); for (i = 0; i < 32; i++) { if ((i & 7) == 0) - fprintf(logfile, "GPR%02d:", i); - fprintf(logfile, " %08x", env->gpr[i]); + fprintf(f, "GPR%02d:", i); + fprintf(f, " %08x", env->gpr[i]); if ((i & 7) == 7) - fprintf(logfile, "\n"); + fprintf(f, "\n"); } - fprintf(logfile, "CR: 0x"); + fprintf(f, "CR: 0x"); for (i = 0; i < 8; i++) - fprintf(logfile, "%01x", env->crf[i]); - fprintf(logfile, " ["); + fprintf(f, "%01x", env->crf[i]); + fprintf(f, " ["); for (i = 0; i < 8; i++) { char a = '-'; - if (env->crf[i] & 0x08) a = 'L'; else if (env->crf[i] & 0x04) a = 'G'; else if (env->crf[i] & 0x02) a = 'E'; - fprintf(logfile, " %c%c", a, env->crf[i] & 0x01 ? 'O' : ' '); + fprintf(f, " %c%c", a, env->crf[i] & 0x01 ? 'O' : ' '); } - fprintf(logfile, " ] "); - fprintf(logfile, "TB: 0x%08x %08x\n", env->spr[SPR_ENCODE(269)], - env->spr[SPR_ENCODE(268)]); + fprintf(f, " ] "); + fprintf(f, "TB: 0x%08x %08x\n", env->tb[1], env->tb[0]); for (i = 0; i < 16; i++) { if ((i & 3) == 0) - fprintf(logfile, "FPR%02d:", i); - fprintf(logfile, " %016llx", *((uint64_t *)(&env->fpr[i]))); + fprintf(f, "FPR%02d:", i); + fprintf(f, " %016llx", *((uint64_t *)&env->fpr[i])); if ((i & 3) == 3) - fprintf(logfile, "\n"); - } - fflush(logfile); + fprintf(f, "\n"); } + fprintf(f, "SRR0 0x%08x SRR1 0x%08x\n", + env->spr[SRR0], env->spr[SRR1]); + fprintf(f, "reservation 0x%08x\n", env->reserve); + fflush(f); } +#if !defined(CONFIG_USER_ONLY) && defined (USE_OPENFIRMWARE) +int setup_machine (CPUPPCState *env, uint32_t mid); +#endif + CPUPPCState *cpu_ppc_init(void) { CPUPPCState *env; @@ -2334,10 +2980,26 @@ CPUPPCState *cpu_ppc_init(void) if (!env) return NULL; memset(env, 0, sizeof(CPUPPCState)); - env->PVR = 0; - if (create_ppc_proc(0) < 0) +#if !defined(CONFIG_USER_ONLY) && defined (USE_OPEN_FIRMWARE) + setup_machine(env, 0); +#else +// env->spr[PVR] = 0; /* Basic PPC */ + env->spr[PVR] = 0x00080100; /* G3 CPU */ +// env->spr[PVR] = 0x00083100; /* MPC755 (G3 embedded) */ +// env->spr[PVR] = 0x00070100; /* IBM 750FX */ +#endif + env->decr = 0xFFFFFFFF; + if (create_ppc_proc(ppc_opcodes, env->spr[PVR]) < 0) return NULL; - init_spr_rights(); + init_spr_rights(env->spr[PVR]); + tlb_flush(env); +#if defined (DO_SINGLE_STEP) + /* Single step trace mode */ + msr_se = 1; +#endif +#if defined(CONFIG_USER_ONLY) + msr_pr = 1; +#endif return env; } @@ -2348,6 +3010,11 @@ void cpu_ppc_close(CPUPPCState *env) free(env); } +/*****************************************************************************/ +void raise_exception_err (int exception_index, int error_code); +int print_insn_powerpc (FILE *out, unsigned long insn, unsigned memaddr, + int dialect); + int gen_intermediate_code_internal (CPUState *env, TranslationBlock *tb, int search_pc) { @@ -2356,7 +3023,6 @@ int gen_intermediate_code_internal (CPUState *env, TranslationBlock *tb, uint32_t pc_start; uint16_t *gen_opc_end; int j, lj = -1; - int ret = 0; pc_start = tb->pc; gen_opc_ptr = gen_opc_buf; @@ -2364,11 +3030,21 @@ int gen_intermediate_code_internal (CPUState *env, TranslationBlock *tb, gen_opparam_ptr = gen_opparam_buf; ctx.nip = (uint32_t *)pc_start; ctx.tb_offset = 0; - ctx.supervisor = msr_ip; + ctx.decr_offset = 0; ctx.tb = tb; - ctx.exception = 0; - - while (ret == 0 && gen_opc_ptr < gen_opc_end) { + ctx.exception = EXCP_NONE; +#if defined(CONFIG_USER_ONLY) + ctx.mem_idx = 0; +#else + ctx.supervisor = 1 - msr_pr; + ctx.mem_idx = (1 - msr_pr); +#endif +#if defined (DO_SINGLE_STEP) + /* Single step trace mode */ + msr_se = 1; +#endif + /* Set env in case of segfault during code fetch */ + while (ctx.exception == EXCP_NONE && gen_opc_ptr < gen_opc_end) { if (search_pc) { if (loglevel > 0) fprintf(logfile, "Search PC...\n"); @@ -2381,15 +3057,26 @@ int gen_intermediate_code_internal (CPUState *env, TranslationBlock *tb, gen_opc_instr_start[lj] = 1; } } - ctx.opcode = __be32_to_cpu(*ctx.nip); -#ifdef DEBUG_DISAS +#if defined DEBUG_DISAS if (loglevel > 0) { fprintf(logfile, "----------------\n"); - fprintf(logfile, "%p: translate opcode %08x\n", - ctx.nip, ctx.opcode); + fprintf(logfile, "nip=%p super=%d ir=%d\n", + ctx.nip, 1 - msr_pr, msr_ir); + } +#endif + ctx.opcode = ldl_code(ctx.nip); +#if defined DEBUG_DISAS + if (loglevel > 0) { + fprintf(logfile, "translate opcode %08x (%02x %02x %02x)\n", + ctx.opcode, opc1(ctx.opcode), opc2(ctx.opcode), + opc3(ctx.opcode)); } #endif ctx.nip++; + ctx.tb_offset++; + /* Check decrementer exception */ + if (++ctx.decr_offset == env->decr + 1) + ctx.exception = EXCP_DECR; table = ppc_opcodes; handler = table[opc1(ctx.opcode)]; if (is_indirect_opcode(handler)) { @@ -2405,62 +3092,93 @@ int gen_intermediate_code_internal (CPUState *env, TranslationBlock *tb, if (loglevel > 0) { if (handler->handler == &gen_invalid) { fprintf(logfile, "invalid/unsupported opcode: " - "%02x -%02x - %02x (%08x)\n", opc1(ctx.opcode), - opc2(ctx.opcode), opc3(ctx.opcode), ctx.opcode); + "%02x -%02x - %02x (%08x) %p\n", + opc1(ctx.opcode), opc2(ctx.opcode), + opc3(ctx.opcode), ctx.opcode, ctx.nip - 1); } else { fprintf(logfile, "invalid bits: %08x for opcode: " - "%02x -%02x - %02x (%p)\n", + "%02x -%02x - %02x (0x%08x) (%p)\n", ctx.opcode & handler->inval, opc1(ctx.opcode), opc2(ctx.opcode), opc3(ctx.opcode), - handler->handler); + ctx.opcode, ctx.nip - 1); } + } else { + if (handler->handler == &gen_invalid) { + printf("invalid/unsupported opcode: " + "%02x -%02x - %02x (%08x) %p\n", + opc1(ctx.opcode), opc2(ctx.opcode), + opc3(ctx.opcode), ctx.opcode, ctx.nip - 1); + } else { + printf("invalid bits: %08x for opcode: " + "%02x -%02x - %02x (0x%08x) (%p)\n", + ctx.opcode & handler->inval, opc1(ctx.opcode), + opc2(ctx.opcode), opc3(ctx.opcode), + ctx.opcode, ctx.nip - 1); + } } - ret = GET_RETVAL(gen_invalid, ctx.opcode); + (*gen_invalid)(&ctx); } else { - ret = GET_RETVAL(*(handler->handler), ctx.opcode); + (*(handler->handler))(&ctx); } - ctx.tb_offset++; -#if defined (DO_SINGLE_STEP) - break; + /* Check trace mode exceptions */ + if ((msr_be && ctx.exception == EXCP_BRANCH) || + /* Check in single step trace mode + * we need to stop except if: + * - rfi, trap or syscall + * - first instruction of an exception handler + */ + (msr_se && ((uint32_t)ctx.nip < 0x100 || + (uint32_t)ctx.nip > 0xF00 || + ((uint32_t)ctx.nip & 0xFC) != 0x04) && + ctx.exception != EXCP_SYSCALL && ctx.exception != EXCP_RFI && + ctx.exception != EXCP_TRAP)) { +#if !defined(CONFIG_USER_ONLY) + gen_op_queue_exception(EXCP_TRACE); #endif + if (ctx.exception == EXCP_NONE) { + ctx.exception = EXCP_TRACE; } -#if defined (DO_STEP_FLUSH) - tb_flush(env); -#endif - /* We need to update the time base */ - if (!search_pc) - gen_op_update_tb(ctx.tb_offset); - /* If we are in step-by-step mode, do a branch to the next instruction - * so the nip will be up-to-date - */ -#if defined (DO_SINGLE_STEP) - if (ret == 0) { + } + /* if too long translation, stop generation too */ + if (gen_opc_ptr >= gen_opc_end || + ((uint32_t)ctx.nip - pc_start) >= (TARGET_PAGE_SIZE - 32)) { + if (ctx.exception == EXCP_NONE) { gen_op_b((uint32_t)ctx.nip); - ret = EXCP_BRANCH; + ctx.exception = EXCP_BRANCH; } -#endif - /* If the exeption isn't a PPC one, - * generate it now. - */ - if (ret != EXCP_BRANCH) { - gen_op_set_T0(0); - if ((ret & 0x2000) == 0) - gen_op_raise_exception(ret); } + } + /* In case of branch, this has already been done *BEFORE* the branch */ + if (ctx.exception != EXCP_BRANCH && ctx.exception != EXCP_RFI) { + gen_op_update_tb(ctx.tb_offset); + gen_op_update_decr(ctx.decr_offset); + gen_op_process_exceptions((uint32_t)ctx.nip); + } +#if 1 /* TO BE FIXED: T0 hasn't got a proper value, which makes tb_add_jump * do bad business and then qemu crashes ! */ gen_op_set_T0(0); +#endif /* Generate the return instruction */ gen_op_exit_tb(); *gen_opc_ptr = INDEX_op_end; - if (!search_pc) - tb->size = (uint32_t)ctx.nip - pc_start; - else + if (search_pc) { + j = gen_opc_ptr - gen_opc_buf; + lj++; + while (lj <= j) + gen_opc_instr_start[lj++] = 0; tb->size = 0; -// *gen_opc_ptr = INDEX_op_end; + if (loglevel > 0) { + page_dump(logfile); + } + } else { + tb->size = (uint32_t)ctx.nip - pc_start; + } #ifdef DEBUG_DISAS if (loglevel > 0) { + fprintf(logfile, "---------------- excp: %04x\n", ctx.exception); + cpu_ppc_dump_state(env, logfile, 0); fprintf(logfile, "IN: %s\n", lookup_symbol((void *)pc_start)); disas(logfile, (void *)pc_start, (uint32_t)ctx.nip - pc_start, 0, 0); fprintf(logfile, "\n"); @@ -2474,12 +3192,12 @@ int gen_intermediate_code_internal (CPUState *env, TranslationBlock *tb, return 0; } -int gen_intermediate_code(CPUState *env, struct TranslationBlock *tb) +int gen_intermediate_code (CPUState *env, struct TranslationBlock *tb) { return gen_intermediate_code_internal(env, tb, 0); } -int gen_intermediate_code_pc(CPUState *env, struct TranslationBlock *tb) +int gen_intermediate_code_pc (CPUState *env, struct TranslationBlock *tb) { return gen_intermediate_code_internal(env, tb, 1); } -- 2.11.0