diff options
Diffstat (limited to 'target-sh4/translate.c')
| -rw-r--r-- | target-sh4/translate.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/target-sh4/translate.c b/target-sh4/translate.c index 3564a67..8e3f324 100644 --- a/target-sh4/translate.c +++ b/target-sh4/translate.c @@ -56,6 +56,19 @@ enum { BS_EXCP = 3, /* We reached an exception condition */ }; +static TCGv cpu_env; + +#include "gen-icount.h" + +void sh4_translate_init() +{ + static int done_init = 0; + if (done_init) + return; + cpu_env = tcg_global_reg_new(TCG_TYPE_PTR, TCG_AREG0, "env"); + done_init = 1; +} + #ifdef CONFIG_USER_ONLY #define GEN_OP_LD(width, reg) \ @@ -143,6 +156,7 @@ CPUSH4State *cpu_sh4_init(const char *cpu_model) if (!env) return NULL; cpu_exec_init(env); + sh4_translate_init(); cpu_sh4_reset(env); tlb_flush(env, 1); return env; @@ -1189,6 +1203,8 @@ gen_intermediate_code_internal(CPUState * env, TranslationBlock * tb, target_ulong pc_start; static uint16_t *gen_opc_end; int i, ii; + int num_insns; + int max_insns; pc_start = tb->pc; gen_opc_end = gen_opc_buf + OPC_MAX_SIZE; @@ -1213,6 +1229,11 @@ gen_intermediate_code_internal(CPUState * env, TranslationBlock * tb, #endif ii = -1; + num_insns = 0; + max_insns = tb->cflags & CF_COUNT_MASK; + if (max_insns == 0) + max_insns = CF_COUNT_MASK; + gen_icount_start(); while (ctx.bstate == BS_NONE && gen_opc_ptr < gen_opc_end) { if (env->nb_breakpoints > 0) { for (i = 0; i < env->nb_breakpoints; i++) { @@ -1235,22 +1256,30 @@ gen_intermediate_code_internal(CPUState * env, TranslationBlock * tb, gen_opc_pc[ii] = ctx.pc; gen_opc_hflags[ii] = ctx.flags; gen_opc_instr_start[ii] = 1; + gen_opc_icount[ii] = num_insns; } + if (num_insns + 1 == max_insns && (tb->cflags & CF_LAST_IO)) + gen_io_start(); #if 0 fprintf(stderr, "Loading opcode at address 0x%08x\n", ctx.pc); fflush(stderr); #endif ctx.opcode = lduw_code(ctx.pc); decode_opc(&ctx); + num_insns++; ctx.pc += 2; if ((ctx.pc & (TARGET_PAGE_SIZE - 1)) == 0) break; if (env->singlestep_enabled) break; + if (num_insns >= max_insns) + break; #ifdef SH4_SINGLE_STEP break; #endif } + if (tb->cflags & CF_LAST_IO) + gen_io_end(); if (env->singlestep_enabled) { gen_op_debug(); } else { @@ -1274,6 +1303,7 @@ gen_intermediate_code_internal(CPUState * env, TranslationBlock * tb, } } + gen_icount_end(tb, num_insns); *gen_opc_ptr = INDEX_op_end; if (search_pc) { i = gen_opc_ptr - gen_opc_buf; @@ -1282,6 +1312,7 @@ gen_intermediate_code_internal(CPUState * env, TranslationBlock * tb, gen_opc_instr_start[ii++] = 0; } else { tb->size = ctx.pc - pc_start; + tb->icount = num_insns; } #ifdef DEBUG_DISAS |