diff --git a/src/frontend/A64/decoder/a64.inc b/src/frontend/A64/decoder/a64.inc
index 76131e00..2c40ecba 100644
--- a/src/frontend/A64/decoder/a64.inc
+++ b/src/frontend/A64/decoder/a64.inc
@@ -445,7 +445,7 @@ INST(ADDP_pair,              "ADDP (scalar)",                             "01011
 // Data Processing - FP and SIMD - SIMD Scalar three same
 //INST(SQADD_1,                "SQADD",                                     "01011110zz1mmmmm000011nnnnnddddd")
 //INST(SQSUB_1,                "SQSUB",                                     "01011110zz1mmmmm001011nnnnnddddd")
-//INST(CMGT_reg_1,             "CMGT (register)",                           "01011110zz1mmmmm001101nnnnnddddd")
+INST(CMGT_reg_1,             "CMGT (register)",                           "01011110zz1mmmmm001101nnnnnddddd")
 //INST(CMGE_reg_1,             "CMGE (register)",                           "01011110zz1mmmmm001111nnnnnddddd")
 //INST(SSHL_1,                 "SSHL",                                      "01011110zz1mmmmm010001nnnnnddddd")
 //INST(SQSHL_reg_1,            "SQSHL (register)",                          "01011110zz1mmmmm010011nnnnnddddd")
diff --git a/src/frontend/A64/translate/impl/simd_scalar_three_same.cpp b/src/frontend/A64/translate/impl/simd_scalar_three_same.cpp
index 37a944cf..1e602a5e 100644
--- a/src/frontend/A64/translate/impl/simd_scalar_three_same.cpp
+++ b/src/frontend/A64/translate/impl/simd_scalar_three_same.cpp
@@ -23,6 +23,22 @@ bool TranslatorVisitor::ADD_1(Imm<2> size, Vec Vm, Vec Vn, Vec Vd) {
     return true;
 }
 
+bool TranslatorVisitor::CMGT_reg_1(Imm<2> size, Vec Vm, Vec Vn, Vec Vd) {
+    if (size != 0b11) {
+        return ReservedValue();
+    }
+
+    const size_t esize = 8 << size.ZeroExtend();
+    const size_t datasize = 128;
+
+    const IR::U128 operand1 = V(datasize, Vn);
+    const IR::U128 operand2 = V(datasize, Vm);
+    const IR::U128 result = ir.VectorGreaterSigned(esize, operand1, operand2);
+
+    V_scalar(esize, Vd, ir.VectorGetElement(esize, result, 0));
+    return true;
+}
+
 bool TranslatorVisitor::SUB_1(Imm<2> size, Vec Vm, Vec Vn, Vec Vd) {
     if (size != 0b11) {
         return ReservedValue();