diff options
| -rw-r--r-- | target-i386/translate.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/target-i386/translate.c b/target-i386/translate.c index b3cb4c5f64..cfa3956543 100644 --- a/target-i386/translate.c +++ b/target-i386/translate.c @@ -5564,12 +5564,8 @@ static target_ulong disas_insn(CPUX86State *env, DisasContext *s, gen_lea_modrm(env, s, modrm); gen_op_mov_v_reg(ot, cpu_T0, reg); /* for xchg, lock is implicit */ - if (!(prefixes & PREFIX_LOCK)) - gen_helper_lock(); - gen_op_ld_v(s, ot, cpu_T1, cpu_A0); - gen_op_st_v(s, ot, cpu_T0, cpu_A0); - if (!(prefixes & PREFIX_LOCK)) - gen_helper_unlock(); + tcg_gen_atomic_xchg_tl(cpu_T1, cpu_A0, cpu_T0, + s->mem_index, ot | MO_LE); gen_op_mov_reg_v(ot, reg, cpu_T1); } break; |