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fixed pop %sp bug 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@458 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2003-11-13 23:09:07 +00:00
parent d71b9a8b2f
commit 77729c2445
1 changed files with 15 additions and 5 deletions
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20
target-i386/translate.c
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@ -2304,8 +2304,9 @@ static uint8_t *disas_insn(DisasContext *s, uint8_t *pc_start)
case 0x58 ... 0x5f: /* pop */
ot = dflag ? OT_LONG : OT_WORD;
gen_pop_T0(s);
gen_op_mov_reg_T0[ot][b & 7]();
/* NOTE: order is important for pop %sp */
gen_pop_update(s);
gen_op_mov_reg_T0[ot][b & 7]();
break;
case 0x60: /* pusha */
gen_pusha(s);
@ -2326,11 +2327,20 @@ static uint8_t *disas_insn(DisasContext *s, uint8_t *pc_start)
case 0x8f: /* pop Ev */
ot = dflag ? OT_LONG : OT_WORD;
modrm = ldub_code(s->pc++);
mod = (modrm >> 6) & 3;
gen_pop_T0(s);
s->popl_esp_hack = 2 << dflag;
gen_ldst_modrm(s, modrm, ot, OR_TMP0, 1);
s->popl_esp_hack = 0;
gen_pop_update(s);
if (mod == 3) {
/* NOTE: order is important for pop %sp */
gen_pop_update(s);
rm = modrm & 7;
gen_op_mov_reg_T0[ot][rm]();
} else {
/* NOTE: order is important too for MMU exceptions */
s->popl_esp_hack = 2 << dflag;
gen_ldst_modrm(s, modrm, ot, OR_TMP0, 1);
s->popl_esp_hack = 0;
gen_pop_update(s);
}
break;
case 0xc8: /* enter */
{