diff options
-rw-r--r-- | target-sparc/cpu.h | 38 | ||||
-rw-r--r-- | target-sparc/exec.h | 15 | ||||
-rw-r--r-- | target-sparc/helper.c | 242 | ||||
-rw-r--r-- | target-sparc/helper.h | 9 | ||||
-rw-r--r-- | target-sparc/op_helper.c | 249 |
5 files changed, 280 insertions, 273 deletions
diff --git a/target-sparc/cpu.h b/target-sparc/cpu.h index 8f5e15e438..6006132c8a 100644 --- a/target-sparc/cpu.h +++ b/target-sparc/cpu.h @@ -337,12 +337,17 @@ typedef struct CPUSPARCState { } while (0) #endif +/* helper.c */ CPUSPARCState *cpu_sparc_init(const char *cpu_model); -void gen_intermediate_code_init(CPUSPARCState *env); -int cpu_sparc_exec(CPUSPARCState *s); +void cpu_sparc_set_id(CPUSPARCState *env, unsigned int cpu); void sparc_cpu_list (FILE *f, int (*cpu_fprintf)(FILE *f, const char *fmt, ...)); -void cpu_sparc_set_id(CPUSPARCState *env, unsigned int cpu); + +/* translate.c */ +void gen_intermediate_code_init(CPUSPARCState *env); + +/* cpu-exec.c */ +int cpu_sparc_exec(CPUSPARCState *s); #define GET_PSR(env) (env->version | (env->psr & PSR_ICC) | \ (env->psref? PSR_EF : 0) | \ @@ -352,7 +357,29 @@ void cpu_sparc_set_id(CPUSPARCState *env, unsigned int cpu); (env->psret? PSR_ET : 0) | env->cwp) #ifndef NO_CPU_IO_DEFS -void cpu_set_cwp(CPUSPARCState *env1, int new_cwp); +static inline void memcpy32(target_ulong *dst, const target_ulong *src) +{ + dst[0] = src[0]; + dst[1] = src[1]; + dst[2] = src[2]; + dst[3] = src[3]; + dst[4] = src[4]; + dst[5] = src[5]; + dst[6] = src[6]; + dst[7] = src[7]; +} + +static inline void cpu_set_cwp(CPUSPARCState *env1, int new_cwp) +{ + /* put the modified wrap registers at their proper location */ + if (env1->cwp == env1->nwindows - 1) + memcpy32(env1->regbase, env1->regbase + env1->nwindows * 16); + env1->cwp = new_cwp; + /* put the wrap registers at their temporary location */ + if (new_cwp == env1->nwindows - 1) + memcpy32(env1->regbase + env1->nwindows * 16, env1->regbase); + env1->regwptr = env1->regbase + (new_cwp * 16); +} static inline int cpu_cwp_inc(CPUSPARCState *env1, int cwp) { @@ -397,10 +424,9 @@ static inline void PUT_CWP64(CPUSPARCState *env1, int cwp) #endif #endif -int cpu_sparc_signal_handler(int host_signum, void *pinfo, void *puc); +/* cpu-exec.c */ void do_unassigned_access(target_phys_addr_t addr, int is_write, int is_exec, int is_asi); -void cpu_check_irqs(CPUSPARCState *env); #define CPUState CPUSPARCState #define cpu_init cpu_sparc_init diff --git a/target-sparc/exec.h b/target-sparc/exec.h index c6ff9506f6..f53cd69829 100644 --- a/target-sparc/exec.h +++ b/target-sparc/exec.h @@ -23,10 +23,25 @@ static inline void regs_to_env(void) { } +/* helper.c */ +void cpu_lock(void); +void cpu_unlock(void); int cpu_sparc_handle_mmu_fault(CPUState *env1, target_ulong address, int rw, int mmu_idx, int is_softmmu); +target_ulong mmu_probe(CPUState *env, target_ulong address, int mmulev); +void dump_mmu(CPUState *env); +void memcpy32(target_ulong *dst, const target_ulong *src); + +/* op_helper.c */ void do_interrupt(CPUState *env); +/* cpu-exec.c */ +void cpu_loop_exit(void); +int cpu_sparc_signal_handler(int host_signum, void *pinfo, void *puc); + +/* sun4m.c */ +void cpu_check_irqs(CPUSPARCState *env); + static inline int cpu_halted(CPUState *env1) { if (!env1->halted) return 0; diff --git a/target-sparc/helper.c b/target-sparc/helper.c index e449400c10..0a2e132c85 100644 --- a/target-sparc/helper.c +++ b/target-sparc/helper.c @@ -28,7 +28,6 @@ #include "cpu.h" #include "exec-all.h" #include "qemu-common.h" -#include "helper.h" //#define DEBUG_MMU //#define DEBUG_FEATURES @@ -639,247 +638,6 @@ target_phys_addr_t cpu_get_phys_page_debug(CPUState *env, target_ulong addr) } #endif -#ifdef TARGET_SPARC64 -#ifdef DEBUG_PCALL -static const char * const excp_names[0x80] = { - [TT_TFAULT] = "Instruction Access Fault", - [TT_TMISS] = "Instruction Access MMU Miss", - [TT_CODE_ACCESS] = "Instruction Access Error", - [TT_ILL_INSN] = "Illegal Instruction", - [TT_PRIV_INSN] = "Privileged Instruction", - [TT_NFPU_INSN] = "FPU Disabled", - [TT_FP_EXCP] = "FPU Exception", - [TT_TOVF] = "Tag Overflow", - [TT_CLRWIN] = "Clean Windows", - [TT_DIV_ZERO] = "Division By Zero", - [TT_DFAULT] = "Data Access Fault", - [TT_DMISS] = "Data Access MMU Miss", - [TT_DATA_ACCESS] = "Data Access Error", - [TT_DPROT] = "Data Protection Error", - [TT_UNALIGNED] = "Unaligned Memory Access", - [TT_PRIV_ACT] = "Privileged Action", - [TT_EXTINT | 0x1] = "External Interrupt 1", - [TT_EXTINT | 0x2] = "External Interrupt 2", - [TT_EXTINT | 0x3] = "External Interrupt 3", - [TT_EXTINT | 0x4] = "External Interrupt 4", - [TT_EXTINT | 0x5] = "External Interrupt 5", - [TT_EXTINT | 0x6] = "External Interrupt 6", - [TT_EXTINT | 0x7] = "External Interrupt 7", - [TT_EXTINT | 0x8] = "External Interrupt 8", - [TT_EXTINT | 0x9] = "External Interrupt 9", - [TT_EXTINT | 0xa] = "External Interrupt 10", - [TT_EXTINT | 0xb] = "External Interrupt 11", - [TT_EXTINT | 0xc] = "External Interrupt 12", - [TT_EXTINT | 0xd] = "External Interrupt 13", - [TT_EXTINT | 0xe] = "External Interrupt 14", - [TT_EXTINT | 0xf] = "External Interrupt 15", -}; -#endif - -void do_interrupt(CPUState *env) -{ - int intno = env->exception_index; - -#ifdef DEBUG_PCALL - if (loglevel & CPU_LOG_INT) { - static int count; - const char *name; - - if (intno < 0 || intno >= 0x180) - name = "Unknown"; - else if (intno >= 0x100) - name = "Trap Instruction"; - else if (intno >= 0xc0) - name = "Window Fill"; - else if (intno >= 0x80) - name = "Window Spill"; - else { - name = excp_names[intno]; - if (!name) - name = "Unknown"; - } - - fprintf(logfile, "%6d: %s (v=%04x) pc=%016" PRIx64 " npc=%016" PRIx64 - " SP=%016" PRIx64 "\n", - count, name, intno, - env->pc, - env->npc, env->regwptr[6]); - cpu_dump_state(env, logfile, fprintf, 0); -#if 0 - { - int i; - uint8_t *ptr; - - fprintf(logfile, " code="); - ptr = (uint8_t *)env->pc; - for(i = 0; i < 16; i++) { - fprintf(logfile, " %02x", ldub(ptr + i)); - } - fprintf(logfile, "\n"); - } -#endif - count++; - } -#endif -#if !defined(CONFIG_USER_ONLY) - if (env->tl >= env->maxtl) { - cpu_abort(env, "Trap 0x%04x while trap level (%d) >= MAXTL (%d)," - " Error state", env->exception_index, env->tl, env->maxtl); - return; - } -#endif - if (env->tl < env->maxtl - 1) { - env->tl++; - } else { - env->pstate |= PS_RED; - if (env->tl < env->maxtl) - env->tl++; - } - env->tsptr = &env->ts[env->tl & MAXTL_MASK]; - env->tsptr->tstate = ((uint64_t)GET_CCR(env) << 32) | - ((env->asi & 0xff) << 24) | ((env->pstate & 0xf3f) << 8) | - GET_CWP64(env); - env->tsptr->tpc = env->pc; - env->tsptr->tnpc = env->npc; - env->tsptr->tt = intno; - if (!(env->def->features & CPU_FEATURE_GL)) { - switch (intno) { - case TT_IVEC: - change_pstate(PS_PEF | PS_PRIV | PS_IG); - break; - case TT_TFAULT: - case TT_TMISS: - case TT_DFAULT: - case TT_DMISS: - case TT_DPROT: - change_pstate(PS_PEF | PS_PRIV | PS_MG); - break; - default: - change_pstate(PS_PEF | PS_PRIV | PS_AG); - break; - } - } - if (intno == TT_CLRWIN) - cpu_set_cwp(env, cpu_cwp_dec(env, env->cwp - 1)); - else if ((intno & 0x1c0) == TT_SPILL) - cpu_set_cwp(env, cpu_cwp_dec(env, env->cwp - env->cansave - 2)); - else if ((intno & 0x1c0) == TT_FILL) - cpu_set_cwp(env, cpu_cwp_inc(env, env->cwp + 1)); - env->tbr &= ~0x7fffULL; - env->tbr |= ((env->tl > 1) ? 1 << 14 : 0) | (intno << 5); - env->pc = env->tbr; - env->npc = env->pc + 4; - env->exception_index = 0; -} -#else -#ifdef DEBUG_PCALL -static const char * const excp_names[0x80] = { - [TT_TFAULT] = "Instruction Access Fault", - [TT_ILL_INSN] = "Illegal Instruction", - [TT_PRIV_INSN] = "Privileged Instruction", - [TT_NFPU_INSN] = "FPU Disabled", - [TT_WIN_OVF] = "Window Overflow", - [TT_WIN_UNF] = "Window Underflow", - [TT_UNALIGNED] = "Unaligned Memory Access", - [TT_FP_EXCP] = "FPU Exception", - [TT_DFAULT] = "Data Access Fault", - [TT_TOVF] = "Tag Overflow", - [TT_EXTINT | 0x1] = "External Interrupt 1", - [TT_EXTINT | 0x2] = "External Interrupt 2", - [TT_EXTINT | 0x3] = "External Interrupt 3", - [TT_EXTINT | 0x4] = "External Interrupt 4", - [TT_EXTINT | 0x5] = "External Interrupt 5", - [TT_EXTINT | 0x6] = "External Interrupt 6", - [TT_EXTINT | 0x7] = "External Interrupt 7", - [TT_EXTINT | 0x8] = "External Interrupt 8", - [TT_EXTINT | 0x9] = "External Interrupt 9", - [TT_EXTINT | 0xa] = "External Interrupt 10", - [TT_EXTINT | 0xb] = "External Interrupt 11", - [TT_EXTINT | 0xc] = "External Interrupt 12", - [TT_EXTINT | 0xd] = "External Interrupt 13", - [TT_EXTINT | 0xe] = "External Interrupt 14", - [TT_EXTINT | 0xf] = "External Interrupt 15", - [TT_TOVF] = "Tag Overflow", - [TT_CODE_ACCESS] = "Instruction Access Error", - [TT_DATA_ACCESS] = "Data Access Error", - [TT_DIV_ZERO] = "Division By Zero", - [TT_NCP_INSN] = "Coprocessor Disabled", -}; -#endif - -void do_interrupt(CPUState *env) -{ - int cwp, intno = env->exception_index; - -#ifdef DEBUG_PCALL - if (loglevel & CPU_LOG_INT) { - static int count; - const char *name; - - if (intno < 0 || intno >= 0x100) - name = "Unknown"; - else if (intno >= 0x80) - name = "Trap Instruction"; - else { - name = excp_names[intno]; - if (!name) - name = "Unknown"; - } - - fprintf(logfile, "%6d: %s (v=%02x) pc=%08x npc=%08x SP=%08x\n", - count, name, intno, - env->pc, - env->npc, env->regwptr[6]); - cpu_dump_state(env, logfile, fprintf, 0); -#if 0 - { - int i; - uint8_t *ptr; - - fprintf(logfile, " code="); - ptr = (uint8_t *)env->pc; - for(i = 0; i < 16; i++) { - fprintf(logfile, " %02x", ldub(ptr + i)); - } - fprintf(logfile, "\n"); - } -#endif - count++; - } -#endif -#if !defined(CONFIG_USER_ONLY) - if (env->psret == 0) { - cpu_abort(env, "Trap 0x%02x while interrupts disabled, Error state", - env->exception_index); - return; - } -#endif - env->psret = 0; - cwp = cpu_cwp_dec(env, env->cwp - 1); - cpu_set_cwp(env, cwp); - env->regwptr[9] = env->pc; - env->regwptr[10] = env->npc; - env->psrps = env->psrs; - env->psrs = 1; - env->tbr = (env->tbr & TBR_BASE_MASK) | (intno << 4); - env->pc = env->tbr; - env->npc = env->pc + 4; - env->exception_index = 0; -} -#endif - -void memcpy32(target_ulong *dst, const target_ulong *src) -{ - dst[0] = src[0]; - dst[1] = src[1]; - dst[2] = src[2]; - dst[3] = src[3]; - dst[4] = src[4]; - dst[5] = src[5]; - dst[6] = src[6]; - dst[7] = src[7]; -} - void cpu_reset(CPUSPARCState *env) { tlb_flush(env, 1); diff --git a/target-sparc/helper.h b/target-sparc/helper.h index 1eb1f6f6eb..124732fb04 100644 --- a/target-sparc/helper.h +++ b/target-sparc/helper.h @@ -179,12 +179,3 @@ VIS_CMPHELPER(cmpne); #undef F_HELPER_SDQ_0_0 #undef VIS_HELPER #undef VIS_CMPHELPER - -void cpu_lock(void); -void cpu_unlock(void); -void cpu_loop_exit(void); -void set_cwp(int new_cwp); -void change_pstate(uint64_t new_pstate); -void memcpy32(target_ulong *dst, const target_ulong *src); -target_ulong mmu_probe(CPUState *env, target_ulong address, int mmulev); -void dump_mmu(CPUState *env); diff --git a/target-sparc/op_helper.c b/target-sparc/op_helper.c index 8c2551ff2c..47cd998ac4 100644 --- a/target-sparc/op_helper.c +++ b/target-sparc/op_helper.c @@ -68,6 +68,11 @@ void helper_trapcc(target_ulong nb_trap, target_ulong do_trap) } } +static inline void set_cwp(int new_cwp) +{ + cpu_set_cwp(env, new_cwp); +} + void helper_check_align(target_ulong addr, uint32_t align) { if (addr & align) { @@ -2668,7 +2673,7 @@ static inline uint64_t *get_gregset(uint64_t pstate) } } -void change_pstate(uint64_t new_pstate) +static inline void change_pstate(uint64_t new_pstate) { uint64_t pstate_regs, new_pstate_regs; uint64_t *src, *dst; @@ -2716,28 +2721,240 @@ void helper_retry(void) } #endif -void cpu_set_cwp(CPUState *env1, int new_cwp) +void helper_flush(target_ulong addr) { - /* put the modified wrap registers at their proper location */ - if (env1->cwp == env1->nwindows - 1) - memcpy32(env1->regbase, env1->regbase + env1->nwindows * 16); - env1->cwp = new_cwp; - /* put the wrap registers at their temporary location */ - if (new_cwp == env1->nwindows - 1) - memcpy32(env1->regbase + env1->nwindows * 16, env1->regbase); - env1->regwptr = env1->regbase + (new_cwp * 16); + addr &= ~7; + tb_invalidate_page_range(addr, addr + 8); } -void set_cwp(int new_cwp) -{ - cpu_set_cwp(env, new_cwp); +#ifdef TARGET_SPARC64 +#ifdef DEBUG_PCALL +static const char * const excp_names[0x80] = { + [TT_TFAULT] = "Instruction Access Fault", + [TT_TMISS] = "Instruction Access MMU Miss", + [TT_CODE_ACCESS] = "Instruction Access Error", + [TT_ILL_INSN] = "Illegal Instruction", + [TT_PRIV_INSN] = "Privileged Instruction", + [TT_NFPU_INSN] = "FPU Disabled", + [TT_FP_EXCP] = "FPU Exception", + [TT_TOVF] = "Tag Overflow", + [TT_CLRWIN] = "Clean Windows", + [TT_DIV_ZERO] = "Division By Zero", + [TT_DFAULT] = "Data Access Fault", + [TT_DMISS] = "Data Access MMU Miss", + [TT_DATA_ACCESS] = "Data Access Error", + [TT_DPROT] = "Data Protection Error", + [TT_UNALIGNED] = "Unaligned Memory Access", + [TT_PRIV_ACT] = "Privileged Action", + [TT_EXTINT | 0x1] = "External Interrupt 1", + [TT_EXTINT | 0x2] = "External Interrupt 2", + [TT_EXTINT | 0x3] = "External Interrupt 3", + [TT_EXTINT | 0x4] = "External Interrupt 4", + [TT_EXTINT | 0x5] = "External Interrupt 5", + [TT_EXTINT | 0x6] = "External Interrupt 6", + [TT_EXTINT | 0x7] = "External Interrupt 7", + [TT_EXTINT | 0x8] = "External Interrupt 8", + [TT_EXTINT | 0x9] = "External Interrupt 9", + [TT_EXTINT | 0xa] = "External Interrupt 10", + [TT_EXTINT | 0xb] = "External Interrupt 11", + [TT_EXTINT | 0xc] = "External Interrupt 12", + [TT_EXTINT | 0xd] = "External Interrupt 13", + [TT_EXTINT | 0xe] = "External Interrupt 14", + [TT_EXTINT | 0xf] = "External Interrupt 15", +}; +#endif + +void do_interrupt(CPUState *env) +{ + int intno = env->exception_index; + +#ifdef DEBUG_PCALL + if (loglevel & CPU_LOG_INT) { + static int count; + const char *name; + + if (intno < 0 || intno >= 0x180) + name = "Unknown"; + else if (intno >= 0x100) + name = "Trap Instruction"; + else if (intno >= 0xc0) + name = "Window Fill"; + else if (intno >= 0x80) + name = "Window Spill"; + else { + name = excp_names[intno]; + if (!name) + name = "Unknown"; + } + + fprintf(logfile, "%6d: %s (v=%04x) pc=%016" PRIx64 " npc=%016" PRIx64 + " SP=%016" PRIx64 "\n", + count, name, intno, + env->pc, + env->npc, env->regwptr[6]); + cpu_dump_state(env, logfile, fprintf, 0); +#if 0 + { + int i; + uint8_t *ptr; + + fprintf(logfile, " code="); + ptr = (uint8_t *)env->pc; + for(i = 0; i < 16; i++) { + fprintf(logfile, " %02x", ldub(ptr + i)); + } + fprintf(logfile, "\n"); + } +#endif + count++; + } +#endif +#if !defined(CONFIG_USER_ONLY) + if (env->tl >= env->maxtl) { + cpu_abort(env, "Trap 0x%04x while trap level (%d) >= MAXTL (%d)," + " Error state", env->exception_index, env->tl, env->maxtl); + return; + } +#endif + if (env->tl < env->maxtl - 1) { + env->tl++; + } else { + env->pstate |= PS_RED; + if (env->tl < env->maxtl) + env->tl++; + } + env->tsptr = &env->ts[env->tl & MAXTL_MASK]; + env->tsptr->tstate = ((uint64_t)GET_CCR(env) << 32) | + ((env->asi & 0xff) << 24) | ((env->pstate & 0xf3f) << 8) | + GET_CWP64(env); + env->tsptr->tpc = env->pc; + env->tsptr->tnpc = env->npc; + env->tsptr->tt = intno; + if (!(env->def->features & CPU_FEATURE_GL)) { + switch (intno) { + case TT_IVEC: + change_pstate(PS_PEF | PS_PRIV | PS_IG); + break; + case TT_TFAULT: + case TT_TMISS: + case TT_DFAULT: + case TT_DMISS: + case TT_DPROT: + change_pstate(PS_PEF | PS_PRIV | PS_MG); + break; + default: + change_pstate(PS_PEF | PS_PRIV | PS_AG); + break; + } + } + if (intno == TT_CLRWIN) + cpu_set_cwp(env, cpu_cwp_dec(env, env->cwp - 1)); + else if ((intno & 0x1c0) == TT_SPILL) + cpu_set_cwp(env, cpu_cwp_dec(env, env->cwp - env->cansave - 2)); + else if ((intno & 0x1c0) == TT_FILL) + cpu_set_cwp(env, cpu_cwp_inc(env, env->cwp + 1)); + env->tbr &= ~0x7fffULL; + env->tbr |= ((env->tl > 1) ? 1 << 14 : 0) | (intno << 5); + env->pc = env->tbr; + env->npc = env->pc + 4; + env->exception_index = 0; } +#else +#ifdef DEBUG_PCALL +static const char * const excp_names[0x80] = { + [TT_TFAULT] = "Instruction Access Fault", + [TT_ILL_INSN] = "Illegal Instruction", + [TT_PRIV_INSN] = "Privileged Instruction", + [TT_NFPU_INSN] = "FPU Disabled", + [TT_WIN_OVF] = "Window Overflow", + [TT_WIN_UNF] = "Window Underflow", + [TT_UNALIGNED] = "Unaligned Memory Access", + [TT_FP_EXCP] = "FPU Exception", + [TT_DFAULT] = "Data Access Fault", + [TT_TOVF] = "Tag Overflow", + [TT_EXTINT | 0x1] = "External Interrupt 1", + [TT_EXTINT | 0x2] = "External Interrupt 2", + [TT_EXTINT | 0x3] = "External Interrupt 3", + [TT_EXTINT | 0x4] = "External Interrupt 4", + [TT_EXTINT | 0x5] = "External Interrupt 5", + [TT_EXTINT | 0x6] = "External Interrupt 6", + [TT_EXTINT | 0x7] = "External Interrupt 7", + [TT_EXTINT | 0x8] = "External Interrupt 8", + [TT_EXTINT | 0x9] = "External Interrupt 9", + [TT_EXTINT | 0xa] = "External Interrupt 10", + [TT_EXTINT | 0xb] = "External Interrupt 11", + [TT_EXTINT | 0xc] = "External Interrupt 12", + [TT_EXTINT | 0xd] = "External Interrupt 13", + [TT_EXTINT | 0xe] = "External Interrupt 14", + [TT_EXTINT | 0xf] = "External Interrupt 15", + [TT_TOVF] = "Tag Overflow", + [TT_CODE_ACCESS] = "Instruction Access Error", + [TT_DATA_ACCESS] = "Data Access Error", + [TT_DIV_ZERO] = "Division By Zero", + [TT_NCP_INSN] = "Coprocessor Disabled", +}; +#endif -void helper_flush(target_ulong addr) +void do_interrupt(CPUState *env) { - addr &= ~7; - tb_invalidate_page_range(addr, addr + 8); + int cwp, intno = env->exception_index; + +#ifdef DEBUG_PCALL + if (loglevel & CPU_LOG_INT) { + static int count; + const char *name; + + if (intno < 0 || intno >= 0x100) + name = "Unknown"; + else if (intno >= 0x80) + name = "Trap Instruction"; + else { + name = excp_names[intno]; + if (!name) + name = "Unknown"; + } + + fprintf(logfile, "%6d: %s (v=%02x) pc=%08x npc=%08x SP=%08x\n", + count, name, intno, + env->pc, + env->npc, env->regwptr[6]); + cpu_dump_state(env, logfile, fprintf, 0); +#if 0 + { + int i; + uint8_t *ptr; + + fprintf(logfile, " code="); + ptr = (uint8_t *)env->pc; + for(i = 0; i < 16; i++) { + fprintf(logfile, " %02x", ldub(ptr + i)); + } + fprintf(logfile, "\n"); + } +#endif + count++; + } +#endif +#if !defined(CONFIG_USER_ONLY) + if (env->psret == 0) { + cpu_abort(env, "Trap 0x%02x while interrupts disabled, Error state", + env->exception_index); + return; + } +#endif + env->psret = 0; + cwp = cpu_cwp_dec(env, env->cwp - 1); + cpu_set_cwp(env, cwp); + env->regwptr[9] = env->pc; + env->regwptr[10] = env->npc; + env->psrps = env->psrs; + env->psrs = 1; + env->tbr = (env->tbr & TBR_BASE_MASK) | (intno << 4); + env->pc = env->tbr; + env->npc = env->pc + 4; + env->exception_index = 0; } +#endif #if !defined(CONFIG_USER_ONLY) |