diff --git a/src/arch/x86/isa/decoder/two_byte_opcodes.isa b/src/arch/x86/isa/decoder/two_byte_opcodes.isa
index 315705200..cb57bf9f0 100644
--- a/src/arch/x86/isa/decoder/two_byte_opcodes.isa
+++ b/src/arch/x86/isa/decoder/two_byte_opcodes.isa
@@ -595,172 +595,170 @@
                     }
                     default: UD2();
                 }
-            }
-            0x0E: decode LEGACY_DECODEVAL {
-                // no prefix
-                0x0: decode OPCODE_OP_BOTTOM3 {
-                    0x0: pshufw_Pq_Qq_Ib();
-                    //0x1: group13_pshimw();
-                    0x1: decode MODRM_REG {
-                        0x2: decode LEGACY_OP {
-                            0x0: psrlw_PRq_Ib();
-                            0x1: psrlw_VRo_Ib();
+                0x0E: decode LEGACY_DECODEVAL {
+                    // no prefix
+                    0x0: decode OPCODE_OP_BOTTOM3 {
+                        0x0: WarnUnimpl::pshufw_Pq_Qq_Ib();
+                        //0x1: group13_pshimw();
+                        0x1: decode MODRM_REG {
+                            0x2: decode LEGACY_OP {
+                                0x0: PSRLW(PRq,Ib);
+                                0x1: PSRLW(VRo,Ib);
+                            }
+                            0x4: decode LEGACY_OP {
+                                0x0: PSRAW(PRq,Ib);
+                                0x1: PSRAW(VRo,Ib);
+                            }
+                            0x6: decode LEGACY_OP {
+                                0x0: PSLLW(PRq,Ib);
+                                0x1: PSLLW(VRo,Ib);
+                            }
+                            default: UD2();
                         }
-                        0x4: decode LEGACY_OP {
-                            0x0: psraw_PRq_Ib();
-                            0x1: psraw_VRo_Ib();
+                        //0x2: group14_pshimd();
+                        0x2: decode MODRM_REG {
+                            0x2: decode LEGACY_OP {
+                                0x0: PSRLD(PRq,Ib);
+                                0x1: PSRLD(VRo,Ib);
+                            }
+                            0x4: decode LEGACY_OP {
+                                0x0: PSRAD(PRq,Ib);
+                                0x1: PSRAD(VRo,Ib);
+                            }
+                            0x6: decode LEGACY_OP {
+                                0x0: PSLLD(PRq,Ib);
+                                0x1: PSLLD(VRo,Ib);
+                            }
+                            default: UD2();
                         }
-                        0x6: decode LEGACY_OP {
-                            0x0: psllw_PRq_Ib();
-                            0x1: psllw_VRo_Ib();
+                        //0x3: group15_pshimq();
+                        0x3: decode MODRM_REG {
+                            0x2: decode LEGACY_OP {
+                                0x0: PSRLQ(PRq,Ib);
+                                0x1: PSRLQ(VRo,Ib);
+                            }
+                            0x3: decode LEGACY_OP {
+                                0x0: UD2();
+                                0x1: WarnUnimpl::psrldq_VRo_Ib();
+                            }
+                            0x6: decode LEGACY_OP {
+                                0x0: PSLLQ(PRq,Ib);
+                                0x1: PSLLQ(VRo,Ib);
+                            }
+                            0x7: decode LEGACY_OP {
+                                0x0: UD2();
+                                0x1: WarnUnimpl::pslldq_VRo_Ib();
+                            }
+                            default: Inst::UD2();
                         }
-                        default: Inst::UD2();
+                        0x4: Inst::PCMPEQB(Pq,Qq);
+                        0x5: Inst::PCMPEQW(Pq,Qq);
+                        0x6: Inst::PCMPEQD(Pq,Qq);
+                        0x7: WarnUnimpl::emms();
                     }
-                    //0x2: group14_pshimd();
-                    0x2: decode MODRM_REG {
-                        0x2: decode LEGACY_OP {
-                            0x0: psrld_PRq_Ib();
-                            0x1: psrld_VRo_Ib();
-                        }
-                        0x4: decode LEGACY_OP {
-                            0x0: psrad_PRq_Ib();
-                            0x1: psrad_VRo_Ib();
-                        }
-                        0x6: decode LEGACY_OP {
-                            0x0: pslld_PRq_Ib();
-                            0x1: pslld_VRo_Ib();
-                        }
-                        default: Inst::UD2();
+                    // repe (0xF3)
+                    0x4: decode OPCODE_OP_BOTTOM3 {
+                        0x0: WarnUnimpl::pshufhw_Vo_Wo_Ib();
+                        default: UD2();
                     }
-                    //0x3: group15_pshimq();
-                    0x3: decode MODRM_REG {
-                        0x2: decode LEGACY_OP {
-                            0x0: psrlq_PRq_Ib();
-                            0x1: psrlq_VRo_Ib();
+                    // operand size (0x66)
+                    0x1: decode OPCODE_OP_BOTTOM3 {
+                        0x0: WarnUnimpl::pshufd_Vo_Wo_Ib();
+                        //0x1: group13_pshimw();
+                        0x1: decode MODRM_REG {
+                            0x2: decode LEGACY_OP {
+                                0x0: PSRLW(PRq,Ib);
+                                0x1: PSRLW(VRo,Ib);
+                            }
+                            0x4: decode LEGACY_OP {
+                                0x0: PSRAW(PRq,Ib);
+                                0x1: PSRAW(VRo,Ib);
+                            }
+                            0x6: decode LEGACY_OP {
+                                0x0: PSLLW(PRq,Ib);
+                                0x1: PSLLW(VRo,Ib);
+                            }
+                            default: Inst::UD2();
                         }
-                        0x3: decode LEGACY_OP {
-                            0x0: Inst::UD2();
-                            0x1: psrldq_VRo_Ib();
+                        //0x2: group14_pshimd();
+                        0x2: decode MODRM_REG {
+                            0x2: decode LEGACY_OP {
+                                0x0: PSRLD(PRq,Ib);
+                                0x1: PSRLD(VRo,Ib);
+                            }
+                            0x4: decode LEGACY_OP {
+                                0x0: PSRAD(PRq,Ib);
+                                0x1: PSRAD(VRo,Ib);
+                            }
+                            0x6: decode LEGACY_OP {
+                                0x0: PSLLD(PRq,Ib);
+                                0x1: PSLLD(VRo,Ib);
+                            }
+                            default: UD2();
                         }
-                        0x6: decode LEGACY_OP {
-                            0x0: psllq_PRq_Ib();
-                            0x1: psllq_VRo_Ib();
+                        //0x3: group15_pshimq();
+                        0x3: decode MODRM_REG {
+                            0x2: decode LEGACY_OP {
+                                0x0: PSRLQ(PRq,Ib);
+                                0x1: PSRLQ(VRo,Ib);
+                            }
+                            0x3: decode LEGACY_OP {
+                                0x0: UD2();
+                                0x1: WarnUnimpl::psrldq_VRo_Ib();
+                            }
+                            0x6: decode LEGACY_OP {
+                                0x0: PSLLQ(PRq,Ib);
+                                0x1: PSLLQ(VRo,Ib);
+                            }
+                            0x7: decode LEGACY_OP {
+                                0x0: UD2();
+                                0x1: WarnUnimpl::pslldq_VRo_Ib();
+                            }
+                            default: UD2();
                         }
-                        0x7: decode LEGACY_OP {
-                            0x0: Inst::UD2();
-                            0x1: pslldq_VRo_Ib();
-                        }
-                        default: Inst::UD2();
+                        0x4: PCMPEQB(Vo,Wo);
+                        0x5: PCMPEQW(Vo,Wo);
+                        0x6: PCMPEQD(Vo,Wo);
+                        default: UD2();
                     }
-                    0x4: Inst::PCMPEQB(Pq,Qq);
-                    0x5: Inst::PCMPEQW(Pq,Qq);
-                    0x6: Inst::PCMPEQD(Pq,Qq);
-                    0x7: emms();
-                }
-                // repe (0xF3)
-                0x4: decode OPCODE_OP_BOTTOM3 {
-                    0x0: pshufhw_Vo_Wo_Ib();
-                    default: Inst::UD2();
-                }
-                // operand size (0x66)
-                0x1: decode OPCODE_OP_BOTTOM3 {
-                    0x0: pshufd_Vo_Wo_Ib();
-                    //0x1: group13_pshimw();
-                    0x1: decode MODRM_REG {
-                        0x2: decode LEGACY_OP {
-                            0x0: psrlw_PRq_Ib();
-                            0x1: psrlw_VRo_Ib();
-                        }
-                        0x4: decode LEGACY_OP {
-                            0x0: psraw_PRq_Ib();
-                            0x1: psraw_VRo_Ib();
-                        }
-                        0x6: decode LEGACY_OP {
-                            0x0: psllw_PRq_Ib();
-                            0x1: psllw_VRo_Ib();
-                        }
-                        default: Inst::UD2();
+                    // repne (0xF2)
+                    0x8: decode OPCODE_OP_BOTTOM3 {
+                        0x0: WarnUnimpl::pshuflw_Vo_Wo_Ib();
+                        default: UD2();
                     }
-                    //0x2: group14_pshimd();
-                    0x2: decode MODRM_REG {
-                        0x2: decode LEGACY_OP {
-                            0x0: psrld_PRq_Ib();
-                            0x1: psrld_VRo_Ib();
-                        }
-                        0x4: decode LEGACY_OP {
-                            0x0: psrad_PRq_Ib();
-                            0x1: psrad_VRo_Ib();
-                        }
-                        0x6: decode LEGACY_OP {
-                            0x0: pslld_PRq_Ib();
-                            0x1: pslld_VRo_Ib();
-                        }
-                        default: Inst::UD2();
+                    default: UD2();
+                }
+                0x0F: decode LEGACY_DECODEVAL {
+                    // no prefix
+                    0x0: decode OPCODE_OP_BOTTOM3 {
+                        0x0: WarnUnimpl::vmread_Ed_or_Eq_Gd_or_Gq();
+                        0x1: WarnUnimpl::vmwrite_Gd_or_Gq_Ed_or_Eq();
+                        0x6: MOVD(Edp,Pdp);
+                        0x7: MOVQ(Qq,Pq);
+                        default: UD2();
                     }
-                    //0x3: group15_pshimq();
-                    0x3: decode MODRM_REG {
-                        0x2: decode LEGACY_OP {
-                            0x0: psrlq_PRq_Ib();
-                            0x1: psrlq_VRo_Ib();
-                        }
-                        0x3: decode LEGACY_OP {
-                            0x0: Inst::UD2();
-                            0x1: psrldq_VRo_Ib();
-                        }
-                        0x6: decode LEGACY_OP {
-                            0x0: psllq_PRq_Ib();
-                            0x1: psllq_VRo_Ib();
-                        }
-                        0x7: decode LEGACY_OP {
-                            0x0: Inst::UD2();
-                            0x1: pslldq_VRo_Ib();
-                        }
-                        default: Inst::UD2();
+                    // repe (0xF3)
+                    0x4: decode OPCODE_OP_BOTTOM3 {
+                        0x6: MOVQ(Vq,Wq);
+                        0x7: WarnUnimpl::movdqu_Wo_Vo();
+                        default: UD2();
                     }
-                    0x4: Inst::PCMPEQB(Vo,Wo);
-                    0x5: Inst::PCMPEQW(Vo,Wo);
-                    0x6: Inst::PCMPEQD(Vo,Wo);
-                    default: Inst::UD2();
+                    // operand size (0x66)
+                    0x1: decode OPCODE_OP_BOTTOM3 {
+                        0x4: WarnUnimpl::haddpd_Vo_Wo();
+                        0x5: WarnUnimpl::hsubpd_Vo_Wo();
+                        0x6: WarnUnimpl::movd_Ed_Vd();
+                        0x7: WarnUnimpl::movdqa_Wo_Vo();
+                        default: UD2();
+                    }
+                    // repne (0xF2)
+                    0x8: decode OPCODE_OP_BOTTOM3 {
+                        0x4: WarnUnimpl::haddps_Vo_Wo();
+                        0x5: WarnUnimpl::hsubps_Vo_Wo();
+                        default: UD2();
+                    }
+                    default: UD2();
                 }
-                // repne (0xF2)
-                0x8: decode OPCODE_OP_BOTTOM3 {
-                    0x0: pshuflw_Vo_Wo_Ib();
-                    default: Inst::UD2();
-                }
-                default: Inst::UD2();
-            }
-            0x0F: decode LEGACY_DECODEVAL {
-                // no prefix
-                0x0: decode OPCODE_OP_BOTTOM3 {
-                    0x0: vmread_Ed_or_Eq_Gd_or_Gq();
-                    0x1: vmwrite_Gd_or_Gq_Ed_or_Eq();
-                    0x6: Inst::MOVD(Edp,Pdp);
-                    0x7: Inst::MOVQ(Qq,Pq);
-                    default: Inst::UD2();
-                }
-                // repe (0xF3)
-                0x4: decode OPCODE_OP_BOTTOM3 {
-                    0x6: Inst::MOVQ(Vq,Wq);
-                    0x7: movdqu_Wo_Vo();
-                    default: Inst::UD2();
-                }
-                // operand size (0x66)
-                0x1: decode OPCODE_OP_BOTTOM3 {
-                    0x4: haddpd_Vo_Wo();
-                    0x5: hsubpd_Vo_Wo();
-                    0x6: movd_Ed_Vd();
-                    0x7: movdqa_Wo_Vo();
-                    default: Inst::UD2();
-                }
-                // repne (0xF2)
-                0x8: decode OPCODE_OP_BOTTOM3 {
-                    0x4: haddps_Vo_Wo();
-                    0x5: hsubps_Vo_Wo();
-                    default: Inst::UD2();
-                }
-                default: Inst::UD2();
-            }
-            format Inst {
                 0x10: decode OPCODE_OP_BOTTOM3 {
                     0x0: JO(Jz);
                     0x1: JNO(Jz);
@@ -944,9 +942,9 @@
             0x1A: decode LEGACY_DECODEVAL {
                 // no prefix
                 0x0: decode OPCODE_OP_BOTTOM3 {
-                    0x1: psrlw_Pq_Qq();
-                    0x2: psrld_Pq_Qq();
-                    0x3: psrlq_Pq_Qq();
+                    0x1: Inst::PSRLW(Pq,Qq);
+                    0x2: Inst::PSRLD(Pq,Qq);
+                    0x3: Inst::PSRLQ(Pq,Qq);
                     0x4: Inst::PADDQ(Pq,Qq);
                     0x5: Inst::PMULLW(Pq,Qq);
                     0x7: pmovmskb_Gd_PRq();
@@ -960,9 +958,9 @@
                 // operand size (0x66)
                 0x1: decode OPCODE_OP_BOTTOM3 {
                     0x0: addsubpd_Vo_Wo();
-                    0x1: psrlw_Vo_Wo();
-                    0x2: psrld_Vo_Wo();
-                    0x3: psrlq_Vo_Wo();
+                    0x1: Inst::PSRLW(Vo,Wo);
+                    0x2: Inst::PSRLD(Vo,Wo);
+                    0x3: Inst::PSRLQ(Vo,Wo);
                     0x4: Inst::PADDQ(Vo,Wo);
                     0x5: Inst::PMULLW(Vo,Wo);
                     0x6: Inst::MOVQ(Wq,Vq);
@@ -1007,8 +1005,8 @@
                 // no prefix
                 0x0: decode OPCODE_OP_BOTTOM3 {
                     0x0: pavgb_Pq_Qq();
-                    0x1: psraw_Pq_Qq();
-                    0x2: psrad_Pq_Qq();
+                    0x1: Inst::PSRAW(Pq,Qq);
+                    0x2: Inst::PSRAD(Pq,Qq);
                     0x3: pavgw_Pq_Qq();
                     0x4: Inst::PMULHUW(Pq,Qq);
                     0x5: Inst::PMULHW(Pq,Qq);
@@ -1023,8 +1021,8 @@
                 // operand size (0x66)
                 0x1: decode OPCODE_OP_BOTTOM3 {
                     0x0: pavgb_Vo_Wo();
-                    0x1: psraw_Vo_Wo();
-                    0x2: psrad_Vo_Wo();
+                    0x1: Inst::PSRAW(Vo,Wo);
+                    0x2: Inst::PSRAD(Vo,Wo);
                     0x3: pavgw_Vo_Wo();
                     0x4: Inst::PMULHUW(Vo,Wo);
                     0x5: Inst::PMULHW(Vo,Wo);
@@ -1068,9 +1066,9 @@
             0x1E: decode LEGACY_DECODEVAL {
                 // no prefix
                 0x0: decode OPCODE_OP_BOTTOM3 {
-                    0x1: psllw_Pq_Qq();
-                    0x2: pslld_Pq_Qq();
-                    0x3: psllq_Pq_Qq();
+                    0x1: Inst::PSLLW(Pq,Qq);
+                    0x2: Inst::PSLLD(Pq,Qq);
+                    0x3: Inst::PSLLQ(Pq,Qq);
                     0x4: Inst::PMULUDQ(Pq,Qq);
                     0x5: pmaddwd_Pq_Qq();
                     0x6: Inst::PSADBW(Pq,Qq);
@@ -1079,9 +1077,9 @@
                 }
                 // operand size (0x66)
                 0x1: decode OPCODE_OP_BOTTOM3 {
-                    0x1: psllw_Vo_Wo();
-                    0x2: pslld_Vo_Wo();
-                    0x3: psllq_Vo_Wo();
+                    0x1: Inst::PSLLW(Vo,Wo);
+                    0x2: Inst::PSLLD(Vo,Wo);
+                    0x3: Inst::PSLLQ(Vo,Wo);
                     0x4: Inst::PMULUDQ(Vo,Wo);
                     0x5: pmaddwd_Vo_Wo();
                     0x6: Inst::PSADBW(Vo,Wo);
diff --git a/src/arch/x86/isa/insts/simd128/integer/shift/left_logical_shift.py b/src/arch/x86/isa/insts/simd128/integer/shift/left_logical_shift.py
index 18d6feb24..617033bc0 100644
--- a/src/arch/x86/isa/insts/simd128/integer/shift/left_logical_shift.py
+++ b/src/arch/x86/isa/insts/simd128/integer/shift/left_logical_shift.py
@@ -54,8 +54,73 @@
 # Authors: Gabe Black
 
 microcode = '''
-# PSLLW
-# PSLLD
-# PSLLQ
-# PSLLDQ
+def macroop PSLLW_XMM_XMM {
+    msll xmmh, xmmh, xmmlm, size=2, ext=0
+    msll xmml, xmml, xmmlm, size=2, ext=0
+};
+
+def macroop PSLLW_XMM_M {
+    ldfp ufp1, seg, sib, disp, dataSize=8
+    msll xmml, xmml, ufp1, size=2, ext=0
+    msll xmmh, xmmh, ufp1, size=2, ext=0
+};
+
+def macroop PSLLW_XMM_P {
+    rdip t7
+    ldfp ufp1, seg, riprel, disp, dataSize=8
+    msll xmml, xmml, ufp1, size=2, ext=0
+    msll xmmh, xmmh, ufp1, size=2, ext=0
+};
+
+def macroop PSLLW_XMM_I {
+    mslli xmml, xmml, imm, size=2, ext=0
+    mslli xmmh, xmmh, imm, size=2, ext=0
+};
+
+def macroop PSLLD_XMM_XMM {
+    msll xmmh, xmmh, xmmlm, size=4, ext=0
+    msll xmml, xmml, xmmlm, size=4, ext=0
+};
+
+def macroop PSLLD_XMM_M {
+    ldfp ufp1, seg, sib, disp, dataSize=8
+    msll xmml, xmml, ufp1, size=4, ext=0
+    msll xmmh, xmmh, ufp1, size=4, ext=0
+};
+
+def macroop PSLLD_XMM_P {
+    rdip t7
+    ldfp ufp1, seg, riprel, disp, dataSize=8
+    msll xmml, xmml, ufp1, size=4, ext=0
+    msll xmmh, xmmh, ufp1, size=4, ext=0
+};
+
+def macroop PSLLD_XMM_I {
+    mslli xmml, xmml, imm, size=4, ext=0
+    mslli xmmh, xmmh, imm, size=4, ext=0
+};
+
+def macroop PSLLQ_XMM_XMM {
+    msll xmmh, xmmh, xmmlm, size=8, ext=0
+    msll xmml, xmml, xmmlm, size=8, ext=0
+};
+
+def macroop PSLLQ_XMM_M {
+    ldfp ufp1, seg, sib, disp, dataSize=8
+    msll xmml, xmml, ufp1, size=8, ext=0
+    msll xmmh, xmmh, ufp1, size=8, ext=0
+};
+
+def macroop PSLLQ_XMM_P {
+    rdip t7
+    ldfp ufp1, seg, riprel, disp, dataSize=8
+    msll xmml, xmml, ufp1, size=8, ext=0
+    msll xmmh, xmmh, ufp1, size=8, ext=0
+};
+
+def macroop PSLLQ_XMM_I {
+    mslli xmml, xmml, imm, size=8, ext=0
+    mslli xmmh, xmmh, imm, size=8, ext=0
+};
 '''
+# PSLLDQ
diff --git a/src/arch/x86/isa/insts/simd128/integer/shift/right_arithmetic_shift.py b/src/arch/x86/isa/insts/simd128/integer/shift/right_arithmetic_shift.py
index 63750e292..b88457a02 100644
--- a/src/arch/x86/isa/insts/simd128/integer/shift/right_arithmetic_shift.py
+++ b/src/arch/x86/isa/insts/simd128/integer/shift/right_arithmetic_shift.py
@@ -54,6 +54,49 @@
 # Authors: Gabe Black
 
 microcode = '''
-# PSRAW
-# PSRAD
+def macroop PSRAW_XMM_XMM {
+    msra xmmh, xmmh, xmmlm, size=2, ext=0
+    msra xmml, xmml, xmmlm, size=2, ext=0
+};
+
+def macroop PSRAW_XMM_M {
+    ldfp ufp1, seg, sib, disp, dataSize=8
+    msra xmml, xmml, ufp1, size=2, ext=0
+    msra xmmh, xmmh, ufp1, size=2, ext=0
+};
+
+def macroop PSRAW_XMM_P {
+    rdip t7
+    ldfp ufp1, seg, riprel, disp, dataSize=8
+    msra xmml, xmml, ufp1, size=2, ext=0
+    msra xmmh, xmmh, ufp1, size=2, ext=0
+};
+
+def macroop PSRAW_XMM_I {
+    msrai xmml, xmml, imm, size=2, ext=0
+    msrai xmmh, xmmh, imm, size=2, ext=0
+};
+
+def macroop PSRAD_XMM_XMM {
+    msra xmmh, xmmh, xmmlm, size=4, ext=0
+    msra xmml, xmml, xmmlm, size=4, ext=0
+};
+
+def macroop PSRAD_XMM_M {
+    ldfp ufp1, seg, sib, disp, dataSize=8
+    msra xmml, xmml, ufp1, size=4, ext=0
+    msra xmmh, xmmh, ufp1, size=4, ext=0
+};
+
+def macroop PSRAD_XMM_P {
+    rdip t7
+    ldfp ufp1, seg, riprel, disp, dataSize=8
+    msra xmml, xmml, ufp1, size=4, ext=0
+    msra xmmh, xmmh, ufp1, size=4, ext=0
+};
+
+def macroop PSRAD_XMM_I {
+    msrai xmml, xmml, imm, size=4, ext=0
+    msrai xmmh, xmmh, imm, size=4, ext=0
+};
 '''
diff --git a/src/arch/x86/isa/insts/simd128/integer/shift/right_logical_shift.py b/src/arch/x86/isa/insts/simd128/integer/shift/right_logical_shift.py
index fc6fb180b..c904eaf50 100644
--- a/src/arch/x86/isa/insts/simd128/integer/shift/right_logical_shift.py
+++ b/src/arch/x86/isa/insts/simd128/integer/shift/right_logical_shift.py
@@ -54,8 +54,73 @@
 # Authors: Gabe Black
 
 microcode = '''
-# PSRLW
-# PSRLD
-# PSRLQ
-# PSRLDQ
+def macroop PSRLW_XMM_XMM {
+    msrl xmmh, xmmh, xmmlm, size=2, ext=0
+    msrl xmml, xmml, xmmlm, size=2, ext=0
+};
+
+def macroop PSRLW_XMM_M {
+    ldfp ufp1, seg, sib, disp, dataSize=8
+    msrl xmml, xmml, ufp1, size=2, ext=0
+    msrl xmmh, xmmh, ufp1, size=2, ext=0
+};
+
+def macroop PSRLW_XMM_P {
+    rdip t7
+    ldfp ufp1, seg, riprel, disp, dataSize=8
+    msrl xmml, xmml, ufp1, size=2, ext=0
+    msrl xmmh, xmmh, ufp1, size=2, ext=0
+};
+
+def macroop PSRLW_XMM_I {
+    msrli xmml, xmml, imm, size=2, ext=0
+    msrli xmmh, xmmh, imm, size=2, ext=0
+};
+
+def macroop PSRLD_XMM_XMM {
+    msrl xmmh, xmmh, xmmlm, size=4, ext=0
+    msrl xmml, xmml, xmmlm, size=4, ext=0
+};
+
+def macroop PSRLD_XMM_M {
+    ldfp ufp1, seg, sib, disp, dataSize=8
+    msrl xmml, xmml, ufp1, size=4, ext=0
+    msrl xmmh, xmmh, ufp1, size=4, ext=0
+};
+
+def macroop PSRLD_XMM_P {
+    rdip t7
+    ldfp ufp1, seg, riprel, disp, dataSize=8
+    msrl xmml, xmml, ufp1, size=4, ext=0
+    msrl xmmh, xmmh, ufp1, size=4, ext=0
+};
+
+def macroop PSRLD_XMM_I {
+    msrli xmml, xmml, imm, size=4, ext=0
+    msrli xmmh, xmmh, imm, size=4, ext=0
+};
+
+def macroop PSRLQ_XMM_XMM {
+    msrl xmmh, xmmh, xmmlm, size=8, ext=0
+    msrl xmml, xmml, xmmlm, size=8, ext=0
+};
+
+def macroop PSRLQ_XMM_M {
+    ldfp ufp1, seg, sib, disp, dataSize=8
+    msrl xmml, xmml, ufp1, size=8, ext=0
+    msrl xmmh, xmmh, ufp1, size=8, ext=0
+};
+
+def macroop PSRLQ_XMM_P {
+    rdip t7
+    ldfp ufp1, seg, riprel, disp, dataSize=8
+    msrl xmml, xmml, ufp1, size=8, ext=0
+    msrl xmmh, xmmh, ufp1, size=8, ext=0
+};
+
+def macroop PSRLQ_XMM_I {
+    msrli xmml, xmml, imm, size=8, ext=0
+    msrli xmmh, xmmh, imm, size=8, ext=0
+};
 '''
+# PSRLDQ
diff --git a/src/arch/x86/isa/insts/simd64/integer/shift/left_logical_shift.py b/src/arch/x86/isa/insts/simd64/integer/shift/left_logical_shift.py
index 4687cab8d..011337ef7 100644
--- a/src/arch/x86/isa/insts/simd64/integer/shift/left_logical_shift.py
+++ b/src/arch/x86/isa/insts/simd64/integer/shift/left_logical_shift.py
@@ -54,7 +54,60 @@
 # Authors: Gabe Black
 
 microcode = '''
-# PSLLW
-# PSLLD
-# PSLLQ
+def macroop PSLLW_MMX_MMX {
+    msll mmx, mmx, mmxm, size=2, ext=0
+};
+
+def macroop PSLLW_MMX_M {
+    ldfp ufp1, seg, sib, disp, dataSize=8
+    msll mmx, mmx, ufp1, size=2, ext=0
+};
+
+def macroop PSLLW_MMX_P {
+    rdip t7
+    ldfp ufp1, seg, riprel, disp, dataSize=8
+    msll mmx, mmx, ufp1, size=2, ext=0
+};
+
+def macroop PSLLW_MMX_I {
+    mslli mmx, mmx, imm, size=2, ext=0
+};
+
+def macroop PSLLD_MMX_MMX {
+    msll mmx, mmx, mmxm, size=4, ext=0
+};
+
+def macroop PSLLD_MMX_M {
+    ldfp ufp1, seg, sib, disp, dataSize=8
+    msll mmx, mmx, ufp1, size=4, ext=0
+};
+
+def macroop PSLLD_MMX_P {
+    rdip t7
+    ldfp ufp1, seg, riprel, disp, dataSize=8
+    msll mmx, mmx, ufp1, size=4, ext=0
+};
+
+def macroop PSLLD_MMX_I {
+    mslli mmx, mmx, imm, size=4, ext=0
+};
+
+def macroop PSLLQ_MMX_MMX {
+    msll mmx, mmx, mmxm, size=8, ext=0
+};
+
+def macroop PSLLQ_MMX_M {
+    ldfp ufp1, seg, sib, disp, dataSize=8
+    msll mmx, mmx, ufp1, size=8, ext=0
+};
+
+def macroop PSLLQ_MMX_P {
+    rdip t7
+    ldfp ufp1, seg, riprel, disp, dataSize=8
+    msll mmx, mmx, ufp1, size=8, ext=0
+};
+
+def macroop PSLLQ_MMX_I {
+    mslli mmx, mmx, imm, size=8, ext=0
+};
 '''
diff --git a/src/arch/x86/isa/insts/simd64/integer/shift/right_arithmetic_shift.py b/src/arch/x86/isa/insts/simd64/integer/shift/right_arithmetic_shift.py
index 63750e292..951b3ea9f 100644
--- a/src/arch/x86/isa/insts/simd64/integer/shift/right_arithmetic_shift.py
+++ b/src/arch/x86/isa/insts/simd64/integer/shift/right_arithmetic_shift.py
@@ -54,6 +54,41 @@
 # Authors: Gabe Black
 
 microcode = '''
-# PSRAW
-# PSRAD
+def macroop PSRAW_MMX_MMX {
+    msra mmx, mmx, mmxm, size=2, ext=0
+};
+
+def macroop PSRAW_MMX_M {
+    ldfp ufp1, seg, sib, disp, dataSize=8
+    msra mmx, mmx, ufp1, size=2, ext=0
+};
+
+def macroop PSRAW_MMX_P {
+    rdip t7
+    ldfp ufp1, seg, riprel, disp, dataSize=8
+    msra mmx, mmx, ufp1, size=2, ext=0
+};
+
+def macroop PSRAW_MMX_I {
+    msrai mmx, mmx, imm, size=2, ext=0
+};
+
+def macroop PSRAD_MMX_MMX {
+    msra mmx, mmx, mmxm, size=4, ext=0
+};
+
+def macroop PSRAD_MMX_M {
+    ldfp ufp1, seg, sib, disp, dataSize=8
+    msra mmx, mmx, ufp1, size=4, ext=0
+};
+
+def macroop PSRAD_MMX_P {
+    rdip t7
+    ldfp ufp1, seg, riprel, disp, dataSize=8
+    msra mmx, mmx, ufp1, size=4, ext=0
+};
+
+def macroop PSRAD_MMX_I {
+    msrai mmx, mmx, imm, size=4, ext=0
+};
 '''
diff --git a/src/arch/x86/isa/insts/simd64/integer/shift/right_logical_shift.py b/src/arch/x86/isa/insts/simd64/integer/shift/right_logical_shift.py
index 1f870dc32..dc6182de7 100644
--- a/src/arch/x86/isa/insts/simd64/integer/shift/right_logical_shift.py
+++ b/src/arch/x86/isa/insts/simd64/integer/shift/right_logical_shift.py
@@ -54,7 +54,60 @@
 # Authors: Gabe Black
 
 microcode = '''
-# PSRLW
-# PSRLD
-# PSRLQ
+def macroop PSRLW_MMX_MMX {
+    msrl mmx, mmx, mmxm, size=2, ext=0
+};
+
+def macroop PSRLW_MMX_M {
+    ldfp ufp1, seg, sib, disp, dataSize=8
+    msrl mmx, mmx, ufp1, size=2, ext=0
+};
+
+def macroop PSRLW_MMX_P {
+    rdip t7
+    ldfp ufp1, seg, riprel, disp, dataSize=8
+    msrl mmx, mmx, ufp1, size=2, ext=0
+};
+
+def macroop PSRLW_MMX_I {
+    msrli mmx, mmx, imm, size=2, ext=0
+};
+
+def macroop PSRLD_MMX_MMX {
+    msrl mmx, mmx, mmxm, size=4, ext=0
+};
+
+def macroop PSRLD_MMX_M {
+    ldfp ufp1, seg, sib, disp, dataSize=8
+    msrl mmx, mmx, ufp1, size=4, ext=0
+};
+
+def macroop PSRLD_MMX_P {
+    rdip t7
+    ldfp ufp1, seg, riprel, disp, dataSize=8
+    msrl mmx, mmx, ufp1, size=4, ext=0
+};
+
+def macroop PSRLD_MMX_I {
+    msrli mmx, mmx, imm, size=4, ext=0
+};
+
+def macroop PSRLQ_MMX_MMX {
+    msrl mmx, mmx, mmxm, size=8, ext=0
+};
+
+def macroop PSRLQ_MMX_M {
+    ldfp ufp1, seg, sib, disp, dataSize=8
+    msrl mmx, mmx, ufp1, size=8, ext=0
+};
+
+def macroop PSRLQ_MMX_P {
+    rdip t7
+    ldfp ufp1, seg, riprel, disp, dataSize=8
+    msrl mmx, mmx, ufp1, size=8, ext=0
+};
+
+def macroop PSRLQ_MMX_I {
+    msrli mmx, mmx, imm, size=8, ext=0
+};
 '''