@@ -7242,24 +7242,18 @@ static bool disas_insn(DisasContext *s, CPUState *cpu)
case 0xe2: /* loop */
case 0xe3: /* jecxz */
{
- TCGLabel *l1, *l2, *l3;
-
- tval = (int8_t)insn_get(env, s, MO_8);
- tval += s->pc - s->cs_base;
- if (dflag == MO_16) {
- tval &= 0xffff;
- }
+ TCGLabel *l1, *l2;
+ int diff = (int8_t)insn_get(env, s, MO_8);
l1 = gen_new_label();
l2 = gen_new_label();
- l3 = gen_new_label();
gen_update_cc_op(s);
b &= 3;
switch(b) {
case 0: /* loopnz */
case 1: /* loopz */
gen_op_add_reg_im(s, s->aflag, R_ECX, -1);
- gen_op_jz_ecx(s, s->aflag, l3);
+ gen_op_jz_ecx(s, s->aflag, l2);
gen_jcc1(s, (JCC_Z << 1) | (b ^ 1), l1);
break;
case 2: /* loop */
@@ -7272,14 +7266,11 @@ static bool disas_insn(DisasContext *s, CPUState *cpu)
break;
}
- gen_set_label(l3);
- gen_update_eip_next(s);
- tcg_gen_br(l2);
+ gen_set_label(l2);
+ gen_jmp_rel(s, MO_32, 0, 1);
gen_set_label(l1);
- gen_jmp_im(s, tval);
- gen_set_label(l2);
- s->base.is_jmp = DISAS_EOB_ONLY;
+ gen_jmp_rel(s, dflag, diff, 0);
}
break;
case 0x130: /* wrmsr */
With gen_jmp_rel, we may chain to the next tb instead of merely writing to eip and exiting. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- target/i386/tcg/translate.c | 21 ++++++--------------- 1 file changed, 6 insertions(+), 15 deletions(-)