diff options
Diffstat (limited to 'target-m68k')
| -rw-r--r-- | target-m68k/cpu.h | 2 | ||||
| -rw-r--r-- | target-m68k/translate.c | 21 |
2 files changed, 22 insertions, 1 deletions
diff --git a/target-m68k/cpu.h b/target-m68k/cpu.h index cfeafc0..aaf9e42 100644 --- a/target-m68k/cpu.h +++ b/target-m68k/cpu.h @@ -235,6 +235,8 @@ static inline void cpu_clone_regs(CPUState *env, target_ulong newsp) } #endif +#define CPU_PC_FROM_TB(env, tb) env->pc = tb->pc + #include "cpu-all.h" #endif diff --git a/target-m68k/translate.c b/target-m68k/translate.c index 0d603bd..a920d21 100644 --- a/target-m68k/translate.c +++ b/target-m68k/translate.c @@ -63,6 +63,8 @@ static TCGv NULL_QREG; /* Used to distinguish stores from bad addressing modes. */ static TCGv store_dummy; +#include "gen-icount.h" + void m68k_tcg_init(void) { char *p; @@ -2919,6 +2921,8 @@ gen_intermediate_code_internal(CPUState *env, TranslationBlock *tb, target_ulong pc_start; int pc_offset; int last_cc_op; + int num_insns; + int max_insns; /* generate intermediate code */ pc_start = tb->pc; @@ -2937,6 +2941,12 @@ gen_intermediate_code_internal(CPUState *env, TranslationBlock *tb, dc->is_mem = 0; dc->mactmp = NULL_QREG; lj = -1; + num_insns = 0; + max_insns = tb->cflags & CF_COUNT_MASK; + if (max_insns == 0) + max_insns = CF_COUNT_MASK; + + gen_icount_start(); do { pc_offset = dc->pc - pc_start; gen_throws_exception = NULL; @@ -2960,10 +2970,14 @@ gen_intermediate_code_internal(CPUState *env, TranslationBlock *tb, } gen_opc_pc[lj] = dc->pc; gen_opc_instr_start[lj] = 1; + gen_opc_icount[lj] = num_insns; } + if (num_insns + 1 == max_insns && (tb->cflags & CF_LAST_IO)) + gen_io_start(); last_cc_op = dc->cc_op; dc->insn_pc = dc->pc; disas_m68k_insn(env, dc); + num_insns++; /* Terminate the TB on memory ops if watchpoints are present. */ /* FIXME: This should be replacd by the deterministic execution @@ -2972,8 +2986,11 @@ gen_intermediate_code_internal(CPUState *env, TranslationBlock *tb, break; } while (!dc->is_jmp && gen_opc_ptr < gen_opc_end && !env->singlestep_enabled && - (pc_offset) < (TARGET_PAGE_SIZE - 32)); + (pc_offset) < (TARGET_PAGE_SIZE - 32) && + num_insns < max_insns); + if (tb->cflags & CF_LAST_IO) + gen_io_end(); if (__builtin_expect(env->singlestep_enabled, 0)) { /* Make sure the pc is updated, and raise a debug exception. */ if (!dc->is_jmp) { @@ -2999,6 +3016,7 @@ gen_intermediate_code_internal(CPUState *env, TranslationBlock *tb, break; } } + gen_icount_end(tb, num_insns); *gen_opc_ptr = INDEX_op_end; #ifdef DEBUG_DISAS @@ -3016,6 +3034,7 @@ gen_intermediate_code_internal(CPUState *env, TranslationBlock *tb, gen_opc_instr_start[lj++] = 0; } else { tb->size = dc->pc - pc_start; + tb->icount = num_insns; } //optimize_flags(); |