diff --git a/src/frontend/A64/decoder/a64.inc b/src/frontend/A64/decoder/a64.inc
index 368fadcb..0ba1228c 100644
--- a/src/frontend/A64/decoder/a64.inc
+++ b/src/frontend/A64/decoder/a64.inc
@@ -677,7 +677,7 @@ INST(RBIT_asimd,             "RBIT (vector)",                             "0Q101
 // Data Processing - FP and SIMD - SIMD three different
 INST(SADDL,                  "SADDL, SADDL2",                             "0Q001110zz1mmmmm000000nnnnnddddd")
 INST(SADDW,                  "SADDW, SADDW2",                             "0Q001110zz1mmmmm000100nnnnnddddd")
-//INST(SSUBL,                  "SSUBL, SSUBL2",                             "0Q001110zz1mmmmm001000nnnnnddddd")
+INST(SSUBL,                  "SSUBL, SSUBL2",                             "0Q001110zz1mmmmm001000nnnnnddddd")
 INST(SSUBW,                  "SSUBW, SSUBW2",                             "0Q001110zz1mmmmm001100nnnnnddddd")
 //INST(ADDHN,                  "ADDHN, ADDHN2",                             "0Q001110zz1mmmmm010000nnnnnddddd")
 //INST(SABAL,                  "SABAL, SABAL2",                             "0Q001110zz1mmmmm010100nnnnnddddd")
diff --git a/src/frontend/A64/translate/impl/simd_three_different.cpp b/src/frontend/A64/translate/impl/simd_three_different.cpp
index 606a8c36..15d5c29d 100644
--- a/src/frontend/A64/translate/impl/simd_three_different.cpp
+++ b/src/frontend/A64/translate/impl/simd_three_different.cpp
@@ -56,6 +56,22 @@ bool TranslatorVisitor::SSUBW(bool Q, Imm<2> size, Vec Vm, Vec Vn, Vec Vd) {
     return true;
 }
 
+bool TranslatorVisitor::SSUBL(bool Q, Imm<2> size, Vec Vm, Vec Vn, Vec Vd) {
+    if (size == 0b11) {
+        return ReservedValue();
+    }
+
+    const size_t esize = 8 << size.ZeroExtend();
+    const size_t part = Q ? 1 : 0;
+
+    const IR::U128 operand1 = ir.VectorSignExtend(esize, Vpart(64, Vn, part));
+    const IR::U128 operand2 = ir.VectorSignExtend(esize, Vpart(64, Vm, part));
+    const IR::U128 result = ir.VectorSub(esize * 2, operand1, operand2);
+
+    V(128, Vd, result);
+    return true;
+}
+
 bool TranslatorVisitor::UADDL(bool Q, Imm<2> size, Vec Vm, Vec Vn, Vec Vd) {
     if (size == 0b11) {
         return ReservedValue();