diff options
Diffstat (limited to 'target/sh4')
| -rw-r--r-- | target/sh4/translate.c | 30 |
1 files changed, 20 insertions, 10 deletions
diff --git a/target/sh4/translate.c b/target/sh4/translate.c index ce84fbb..498bb99 100644 --- a/target/sh4/translate.c +++ b/target/sh4/translate.c @@ -230,12 +230,15 @@ static inline void gen_save_cpu_state(DisasContext *ctx, bool save_pc) } } +static inline bool use_exit_tb(DisasContext *ctx) +{ + return (ctx->tbflags & GUSA_EXCLUSIVE) != 0; +} + static inline bool use_goto_tb(DisasContext *ctx, target_ulong dest) { - if (unlikely(ctx->singlestep_enabled)) { - return false; - } - if (ctx->tbflags & GUSA_EXCLUSIVE) { + /* Use a direct jump if in same page and singlestep not enabled */ + if (unlikely(ctx->singlestep_enabled || use_exit_tb(ctx))) { return false; } #ifndef CONFIG_USER_ONLY @@ -248,28 +251,35 @@ static inline bool use_goto_tb(DisasContext *ctx, target_ulong dest) static void gen_goto_tb(DisasContext *ctx, int n, target_ulong dest) { if (use_goto_tb(ctx, dest)) { - /* Use a direct jump if in same page and singlestep not enabled */ tcg_gen_goto_tb(n); tcg_gen_movi_i32(cpu_pc, dest); tcg_gen_exit_tb((uintptr_t)ctx->tb + n); } else { tcg_gen_movi_i32(cpu_pc, dest); - if (ctx->singlestep_enabled) + if (ctx->singlestep_enabled) { gen_helper_debug(cpu_env); - tcg_gen_exit_tb(0); + } else if (use_exit_tb(ctx)) { + tcg_gen_exit_tb(0); + } else { + tcg_gen_lookup_and_goto_ptr(cpu_pc); + } } } static void gen_jump(DisasContext * ctx) { - if (ctx->delayed_pc == (uint32_t) - 1) { + if (ctx->delayed_pc == -1) { /* Target is not statically known, it comes necessarily from a delayed jump as immediate jump are conditinal jumps */ tcg_gen_mov_i32(cpu_pc, cpu_delayed_pc); tcg_gen_discard_i32(cpu_delayed_pc); - if (ctx->singlestep_enabled) + if (ctx->singlestep_enabled) { gen_helper_debug(cpu_env); - tcg_gen_exit_tb(0); + } else if (use_exit_tb(ctx)) { + tcg_gen_exit_tb(0); + } else { + tcg_gen_lookup_and_goto_ptr(cpu_pc); + } } else { gen_goto_tb(ctx, 0, ctx->delayed_pc); } |