diff options
Diffstat (limited to 'target-i386')
| -rw-r--r-- | target-i386/translate.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/target-i386/translate.c b/target-i386/translate.c index 51016fedd5..c1a2886acc 100644 --- a/target-i386/translate.c +++ b/target-i386/translate.c @@ -4174,6 +4174,37 @@ static void gen_sse(CPUX86State *env, DisasContext *s, int b, gen_helper_pext(cpu_regs[reg], cpu_T[0], cpu_T[1]); break; + case 0x1f7: /* shlx Gy, Ey, By */ + case 0x2f7: /* sarx Gy, Ey, By */ + case 0x3f7: /* shrx 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); + if (ot == OT_QUAD) { + tcg_gen_andi_tl(cpu_T[1], cpu_regs[s->vex_v], 63); + } else { + tcg_gen_andi_tl(cpu_T[1], cpu_regs[s->vex_v], 31); + } + if (b == 0x1f7) { + tcg_gen_shl_tl(cpu_T[0], cpu_T[0], cpu_T[1]); + } else if (b == 0x2f7) { + if (ot != OT_QUAD) { + tcg_gen_ext32s_tl(cpu_T[0], cpu_T[0]); + } + tcg_gen_sar_tl(cpu_T[0], cpu_T[0], cpu_T[1]); + } else { + if (ot != OT_QUAD) { + tcg_gen_ext32u_tl(cpu_T[0], cpu_T[0]); + } + tcg_gen_shr_tl(cpu_T[0], cpu_T[0], cpu_T[1]); + } + gen_op_mov_reg_T0(ot, reg); + break; + case 0x0f3: case 0x1f3: case 0x2f3: |