An instruction with address and segment size override triggers the bug. inc dword ptr gs:260h[ebx*4] gets incorrectly translated to: (uint32_t)(gs.base + ebx * 4 + 0x260) instead of gs.base + (uint32_t)(ebx * 4 + 0x260)
Signed-off-by: Vitaly Chipounov <vitaly.chipou...@epfl.ch> --- target-i386/translate.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/target-i386/translate.c b/target-i386/translate.c index a902f4a..9ca7375 100644 --- a/target-i386/translate.c +++ b/target-i386/translate.c @@ -459,10 +459,10 @@ static inline void gen_op_movl_A0_seg(int reg) static inline void gen_op_addl_A0_seg(int reg) { tcg_gen_ld_tl(cpu_tmp0, cpu_env, offsetof(CPUX86State, segs[reg].base)); - tcg_gen_add_tl(cpu_A0, cpu_A0, cpu_tmp0); #ifdef TARGET_X86_64 tcg_gen_andi_tl(cpu_A0, cpu_A0, 0xffffffff); #endif + tcg_gen_add_tl(cpu_A0, cpu_A0, cpu_tmp0); } #ifdef TARGET_X86_64 -- 1.7.4.1