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authorPaolo Bonzini <pbonzini@redhat.com>2016-10-12 09:23:39 +0200
committerPaolo Bonzini <pbonzini@redhat.com>2016-10-24 15:27:19 +0200
commit620abfb004543404bef1953e25da2ad77352941a (patch)
tree1268f6527bb2357d6011ba215d804311851d3e81
parent03514ac25c40ec3f2ffc493f1862ddd1353419f8 (diff)
target-i386: fix 32-bit addresses in LEA
This was found with test-i386. The issue is that instructions such as addr32 lea (%eax), %rax did not perform a 32-bit extension, because the LEA translation skipped the gen_lea_v_seg step. That step does not just add segments, it also takes care of extending from address size to pointer size. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
-rw-r--r--target-i386/translate.c14
1 files changed, 7 insertions, 7 deletions
diff --git a/target-i386/translate.c b/target-i386/translate.c
index 9447557911..23fde58547 100644
--- a/target-i386/translate.c
+++ b/target-i386/translate.c
@@ -457,13 +457,12 @@ static void gen_lea_v_seg(DisasContext *s, TCGMemOp aflag, TCGv a0,
#endif
case MO_32:
/* 32 bit address */
+ if (ovr_seg < 0 && s->addseg) {
+ ovr_seg = def_seg;
+ }
if (ovr_seg < 0) {
- if (s->addseg) {
- ovr_seg = def_seg;
- } else {
- tcg_gen_ext32u_tl(cpu_A0, a0);
- return;
- }
+ tcg_gen_ext32u_tl(cpu_A0, a0);
+ return;
}
break;
case MO_16:
@@ -5372,7 +5371,8 @@ static target_ulong disas_insn(CPUX86State *env, DisasContext *s,
{
AddressParts a = gen_lea_modrm_0(env, s, modrm);
TCGv ea = gen_lea_modrm_1(a);
- gen_op_mov_reg_v(dflag, reg, ea);
+ gen_lea_v_seg(s, s->aflag, ea, -1, -1);
+ gen_op_mov_reg_v(dflag, reg, cpu_A0);
}
break;