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| author | Richard Henderson <richard.henderson@linaro.org> | 2021-06-22 07:50:12 -0700 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2021-06-29 10:04:56 -0700 |
| commit | c96747521c5142ea3c2cba687ff09be405d4054a (patch) | |
| tree | 409751acc7f1870119bdeba602ee25aef662fef8 /target/cris | |
| parent | 9e9f5ba071a425e0bc2315a66115c0e6924455b3 (diff) | |
| download | qemu-c96747521c5142ea3c2cba687ff09be405d4054a.zip qemu-c96747521c5142ea3c2cba687ff09be405d4054a.tar.gz qemu-c96747521c5142ea3c2cba687ff09be405d4054a.tar.bz2 | |
target/cris: Add DISAS_UPDATE_NEXT
Move this pc update into tb_stop.
We will be able to re-use this code shortly.
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Tested-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'target/cris')
| -rw-r--r-- | target/cris/translate.c | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/target/cris/translate.c b/target/cris/translate.c index df92b90..a2124ff 100644 --- a/target/cris/translate.c +++ b/target/cris/translate.c @@ -52,9 +52,15 @@ #define BUG() (gen_BUG(dc, __FILE__, __LINE__)) #define BUG_ON(x) ({if (x) BUG();}) -/* is_jmp field values */ -#define DISAS_JUMP DISAS_TARGET_0 /* only pc was modified dynamically */ -#define DISAS_UPDATE DISAS_TARGET_1 /* cpu state was modified dynamically */ +/* + * Target-specific is_jmp field values + */ +/* Only pc was modified dynamically */ +#define DISAS_JUMP DISAS_TARGET_0 +/* Cpu state was modified dynamically, including pc */ +#define DISAS_UPDATE DISAS_TARGET_1 +/* Cpu state was modified dynamically, excluding pc -- use npc */ +#define DISAS_UPDATE_NEXT DISAS_TARGET_2 /* Used by the decoder. */ #define EXTRACT_FIELD(src, start, end) \ @@ -3268,8 +3274,8 @@ static void cris_tr_translate_insn(DisasContextBase *dcbase, CPUState *cs) /* Force an update if the per-tb cpu state has changed. */ if (dc->base.is_jmp == DISAS_NEXT && dc->cpustate_changed) { - dc->base.is_jmp = DISAS_UPDATE; - tcg_gen_movi_tl(env_pc, dc->pc); + dc->base.is_jmp = DISAS_UPDATE_NEXT; + return; } /* @@ -3311,6 +3317,7 @@ static void cris_tr_tb_stop(DisasContextBase *dcbase, CPUState *cpu) if (unlikely(dc->base.singlestep_enabled)) { switch (is_jmp) { case DISAS_TOO_MANY: + case DISAS_UPDATE_NEXT: tcg_gen_movi_tl(env_pc, npc); /* fall through */ case DISAS_JUMP: @@ -3327,6 +3334,9 @@ static void cris_tr_tb_stop(DisasContextBase *dcbase, CPUState *cpu) case DISAS_TOO_MANY: gen_goto_tb(dc, 0, npc); break; + case DISAS_UPDATE_NEXT: + tcg_gen_movi_tl(env_pc, npc); + /* fall through */ case DISAS_JUMP: case DISAS_UPDATE: /* Indicate that interupts must be re-evaluated before the next TB. */ |