diff options
| author | Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru> | 2015-07-10 12:57:19 +0300 |
|---|---|---|
| committer | Richard Henderson <rth@twiddle.net> | 2015-09-15 12:28:16 -0700 |
| commit | 6cad09d2f74d7318f737acaa21b3da49a0c9e670 (patch) | |
| tree | aa66897839b7c1edde8df6b9aa8353f54ac0b93f /target-i386/translate.c | |
| parent | 9198009529d06b6489b68a7505942cca3a50893f (diff) | |
target-i386: exception handling for FPU instructions
This patch fixes exception handling for FPU instructions
and removes obsolete PC update from translate.c.
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'target-i386/translate.c')
| -rw-r--r-- | target-i386/translate.c | 24 |
1 files changed, 0 insertions, 24 deletions
diff --git a/target-i386/translate.c b/target-i386/translate.c index 3ce9c654d7..3b3335f46b 100644 --- a/target-i386/translate.c +++ b/target-i386/translate.c @@ -5836,8 +5836,6 @@ static target_ulong disas_insn(CPUX86State *env, DisasContext *s, } break; case 0x0c: /* fldenv mem */ - gen_update_cc_op(s); - gen_jmp_im(pc_start - s->cs_base); gen_helper_fldenv(cpu_env, cpu_A0, tcg_const_i32(dflag - 1)); break; case 0x0d: /* fldcw mem */ @@ -5846,8 +5844,6 @@ static target_ulong disas_insn(CPUX86State *env, DisasContext *s, gen_helper_fldcw(cpu_env, cpu_tmp2_i32); break; case 0x0e: /* fnstenv mem */ - gen_update_cc_op(s); - gen_jmp_im(pc_start - s->cs_base); gen_helper_fstenv(cpu_env, cpu_A0, tcg_const_i32(dflag - 1)); break; case 0x0f: /* fnstcw mem */ @@ -5856,24 +5852,16 @@ static target_ulong disas_insn(CPUX86State *env, DisasContext *s, s->mem_index, MO_LEUW); break; case 0x1d: /* fldt mem */ - gen_update_cc_op(s); - gen_jmp_im(pc_start - s->cs_base); gen_helper_fldt_ST0(cpu_env, cpu_A0); break; case 0x1f: /* fstpt mem */ - gen_update_cc_op(s); - gen_jmp_im(pc_start - s->cs_base); gen_helper_fstt_ST0(cpu_env, cpu_A0); gen_helper_fpop(cpu_env); break; case 0x2c: /* frstor mem */ - gen_update_cc_op(s); - gen_jmp_im(pc_start - s->cs_base); gen_helper_frstor(cpu_env, cpu_A0, tcg_const_i32(dflag - 1)); break; case 0x2e: /* fnsave mem */ - gen_update_cc_op(s); - gen_jmp_im(pc_start - s->cs_base); gen_helper_fsave(cpu_env, cpu_A0, tcg_const_i32(dflag - 1)); break; case 0x2f: /* fnstsw mem */ @@ -5882,13 +5870,9 @@ static target_ulong disas_insn(CPUX86State *env, DisasContext *s, s->mem_index, MO_LEUW); break; case 0x3c: /* fbld */ - gen_update_cc_op(s); - gen_jmp_im(pc_start - s->cs_base); gen_helper_fbld_ST0(cpu_env, cpu_A0); break; case 0x3e: /* fbstp */ - gen_update_cc_op(s); - gen_jmp_im(pc_start - s->cs_base); gen_helper_fbst_ST0(cpu_env, cpu_A0); gen_helper_fpop(cpu_env); break; @@ -5923,8 +5907,6 @@ static target_ulong disas_insn(CPUX86State *env, DisasContext *s, switch(rm) { case 0: /* fnop */ /* check exceptions (FreeBSD FPU probe) */ - gen_update_cc_op(s); - gen_jmp_im(pc_start - s->cs_base); gen_helper_fwait(cpu_env); break; default: @@ -6894,8 +6876,6 @@ static target_ulong disas_insn(CPUX86State *env, DisasContext *s, (HF_MP_MASK | HF_TS_MASK)) { gen_exception(s, EXCP07_PREX, pc_start - s->cs_base); } else { - gen_update_cc_op(s); - gen_jmp_im(pc_start - s->cs_base); gen_helper_fwait(cpu_env); } break; @@ -7725,8 +7705,6 @@ static target_ulong disas_insn(CPUX86State *env, DisasContext *s, break; } gen_lea_modrm(env, s, modrm); - gen_update_cc_op(s); - gen_jmp_im(pc_start - s->cs_base); gen_helper_fxsave(cpu_env, cpu_A0, tcg_const_i32(dflag == MO_64)); break; case 1: /* fxrstor */ @@ -7738,8 +7716,6 @@ static target_ulong disas_insn(CPUX86State *env, DisasContext *s, break; } gen_lea_modrm(env, s, modrm); - gen_update_cc_op(s); - gen_jmp_im(pc_start - s->cs_base); gen_helper_fxrstor(cpu_env, cpu_A0, tcg_const_i32(dflag == MO_64)); break; case 2: /* ldmxcsr */ |