diff --git a/src/arch/x86/isa/decoder/two_byte_opcodes.isa b/src/arch/x86/isa/decoder/two_byte_opcodes.isa
index 763b661ca..6e3bf53cd 100644
--- a/src/arch/x86/isa/decoder/two_byte_opcodes.isa
+++ b/src/arch/x86/isa/decoder/two_byte_opcodes.isa
@@ -553,7 +553,7 @@
                 0x0: decode OPCODE_OP_BOTTOM3 {
                     0x0: Inst::PUNPCKLBW(Pq,Qd);
                     0x1: Inst::PUNPCKLWD(Pq,Qd);
-                    0x2: punpckldq_Pq_Qd();
+                    0x2: Inst::PUNPCKLDQ(Pq,Qd);
                     0x3: packsswb_Pq_Qq();
                     0x4: pcmpgtb_Pq_Qq();
                     0x5: pcmpgtw_Pq_Qq();
@@ -564,7 +564,7 @@
                 0x1: decode OPCODE_OP_BOTTOM3 {
                     0x0: Inst::PUNPCKLBW(Vo,Wq);
                     0x1: Inst::PUNPCKLWD(Vo,Wq);
-                    0x2: punpckldq_Vo_Wq();
+                    0x2: Inst::PUNPCKLDQ(Vo,Wq);
                     0x3: packsswb_Vo_Wo();
                     0x4: pcmpgtb_Vo_Wo();
                     0x5: pcmpgtw_Vo_Wo();
diff --git a/src/arch/x86/isa/insts/simd128/integer/data_reordering/unpack_and_interleave.py b/src/arch/x86/isa/insts/simd128/integer/data_reordering/unpack_and_interleave.py
index 0bf063ede..9049350f8 100644
--- a/src/arch/x86/isa/insts/simd128/integer/data_reordering/unpack_and_interleave.py
+++ b/src/arch/x86/isa/insts/simd128/integer/data_reordering/unpack_and_interleave.py
@@ -89,10 +89,27 @@ def macroop PUNPCKLWD_XMM_P {
     unpack xmmh, xmml, ufp1, sel=1, size=2
     unpack xmml, xmml, ufp1, sel=0, size=2
 };
+
+def macroop PUNPCKLDQ_XMM_XMM {
+    unpack xmmh, xmml, xmmlm, sel=1, size=4
+    unpack xmml, xmml, xmmlm, sel=0, size=4
+};
+
+def macroop PUNPCKLDQ_XMM_M {
+    ldfp ufp1, seg, sib, disp, dataSize=8
+    unpack xmmh, xmml, ufp1, sel=1, size=4
+    unpack xmml, xmml, ufp1, sel=0, size=4
+};
+
+def macroop PUNPCKLDQ_XMM_P {
+    rdip t7
+    ldfp ufp1, seg, riprel, disp, dataSize=8
+    unpack xmmh, xmml, ufp1, sel=1, size=4
+    unpack xmml, xmml, ufp1, sel=0, size=4
+};
 '''
 # PUNPCKHBW
 # PUNPCKHWD
 # PUNPCKHDQ
 # PUNPCKHQDQ
-# PUNPCKLDQ
 # PUNPCKLQDQ
diff --git a/src/arch/x86/isa/insts/simd64/integer/data_reordering/unpack_and_interleave.py b/src/arch/x86/isa/insts/simd64/integer/data_reordering/unpack_and_interleave.py
index 196706c9b..46d99f1b4 100644
--- a/src/arch/x86/isa/insts/simd64/integer/data_reordering/unpack_and_interleave.py
+++ b/src/arch/x86/isa/insts/simd64/integer/data_reordering/unpack_and_interleave.py
@@ -83,8 +83,22 @@ def macroop PUNPCKLWD_MMX_P {
     ldfp ufp1, seg, riprel, disp, dataSize=8
     unpack mmx, mmx, ufp1, sel=0, size=2
 };
+
+def macroop PUNPCKLDQ_MMX_MMX {
+    unpack mmx, mmx, mmxm, sel=0, size=4
+};
+
+def macroop PUNPCKLDQ_MMX_M {
+    ldfp ufp1, seg, sib, disp, dataSize=8
+    unpack mmx, mmx, ufp1, sel=0, size=4
+};
+
+def macroop PUNPCKLDQ_MMX_P {
+    rdip t7
+    ldfp ufp1, seg, riprel, disp, dataSize=8
+    unpack mmx, mmx, ufp1, sel=0, size=4
+};
 '''
 # PUNPCKHBW
 # PUNPCKHWD
 # PUNPCKHDQ
-# PUNPCKLDQ