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-rw-r--r--target-i386/translate.c27
1 files changed, 27 insertions, 0 deletions
diff --git a/target-i386/translate.c b/target-i386/translate.c
index 2322d5c838..2bb8d9f8c3 100644
--- a/target-i386/translate.c
+++ b/target-i386/translate.c
@@ -4072,6 +4072,33 @@ static void gen_sse(CPUX86State *env, DisasContext *s, int b,
}
break;
+ case 0x0f5: /* bzhi Gy, Ey, By */
+ if (!(s->cpuid_7_0_ebx_features & CPUID_7_0_EBX_BMI2)
+ || !(s->prefix & PREFIX_VEX)
+ || s->vex_l != 0) {
+ goto illegal_op;
+ }
+ ot = s->dflag == 2 ? OT_QUAD : OT_LONG;
+ gen_ldst_modrm(env, s, modrm, ot, OR_TMP0, 0);
+ tcg_gen_ext8u_tl(cpu_T[1], cpu_regs[s->vex_v]);
+ {
+ TCGv bound = tcg_const_tl(ot == OT_QUAD ? 63 : 31);
+ /* Note that since we're using BMILG (in order to get O
+ cleared) we need to store the inverse into C. */
+ tcg_gen_setcond_tl(TCG_COND_LT, cpu_cc_src,
+ cpu_T[1], bound);
+ tcg_gen_movcond_tl(TCG_COND_GT, cpu_T[1], cpu_T[1],
+ bound, bound, cpu_T[1]);
+ tcg_temp_free(bound);
+ }
+ tcg_gen_movi_tl(cpu_A0, -1);
+ tcg_gen_shl_tl(cpu_A0, cpu_A0, cpu_T[1]);
+ tcg_gen_andc_tl(cpu_T[0], cpu_T[0], cpu_A0);
+ gen_op_mov_reg_T0(ot, reg);
+ gen_op_update1_cc();
+ set_cc_op(s, CC_OP_BMILGB + ot);
+ break;
+
case 0x0f3:
case 0x1f3:
case 0x2f3: