diff --git a/src/frontend/A32/decoder/thumb32.inc b/src/frontend/A32/decoder/thumb32.inc
index 00701a33..62d83ef3 100644
--- a/src/frontend/A32/decoder/thumb32.inc
+++ b/src/frontend/A32/decoder/thumb32.inc
@@ -274,7 +274,7 @@ INST(thumb32_SMUSD,          "SMUSD",                    "111110110100nnnn1111dd
 //INST(thumb32_SMLSD,          "SMLSD",                    "111110110100------------000-----")
 INST(thumb32_SMMUL,          "SMMUL",                    "111110110101nnnn1111dddd000Rmmmm")
 INST(thumb32_SMMLA,          "SMMLA",                    "111110110101nnnnaaaadddd000Rmmmm")
-//INST(thumb32_SMMLS,          "SMMLS",                    "111110110110------------000-----")
+INST(thumb32_SMMLS,          "SMMLS",                    "111110110110nnnnaaaadddd000Rmmmm")
 INST(thumb32_USAD8,          "USAD8",                    "111110110111nnnn1111dddd0000mmmm")
 INST(thumb32_USADA8,         "USADA8",                   "111110110111nnnnaaaadddd0000mmmm")
 
diff --git a/src/frontend/A32/translate/impl/thumb32_multiply.cpp b/src/frontend/A32/translate/impl/thumb32_multiply.cpp
index 7d5f4e52..fd7e32ef 100644
--- a/src/frontend/A32/translate/impl/thumb32_multiply.cpp
+++ b/src/frontend/A32/translate/impl/thumb32_multiply.cpp
@@ -86,6 +86,25 @@ bool ThumbTranslatorVisitor::thumb32_SMMLA(Reg n, Reg a, Reg d, bool R, Reg m) {
     return true;
 }
 
+bool ThumbTranslatorVisitor::thumb32_SMMLS(Reg n, Reg a, Reg d, bool R, Reg m) {
+    if (d == Reg::PC || n == Reg::PC || m == Reg::PC || a == Reg::PC) {
+        return UnpredictableInstruction();
+    }
+
+    const auto n64 = ir.SignExtendWordToLong(ir.GetRegister(n));
+    const auto m64 = ir.SignExtendWordToLong(ir.GetRegister(m));
+    const auto a64 = ir.Pack2x32To1x64(ir.Imm32(0), ir.GetRegister(a));
+    const auto temp = ir.Sub(a64, ir.Mul(n64, m64));
+    const auto result_carry = ir.MostSignificantWord(temp);
+    auto result = result_carry.result;
+    if (R) {
+        result = ir.AddWithCarry(result, ir.Imm32(0), result_carry.carry).result;
+    }
+
+    ir.SetRegister(d, result);
+    return true;
+}
+
 bool ThumbTranslatorVisitor::thumb32_SMMUL(Reg n, Reg d, bool R, Reg m) {
     if (d == Reg::PC || n == Reg::PC || m == Reg::PC) {
         return UnpredictableInstruction();
diff --git a/src/frontend/A32/translate/impl/translate_thumb.h b/src/frontend/A32/translate/impl/translate_thumb.h
index 13d4be39..c8092ffd 100644
--- a/src/frontend/A32/translate/impl/translate_thumb.h
+++ b/src/frontend/A32/translate/impl/translate_thumb.h
@@ -134,6 +134,7 @@ struct ThumbTranslatorVisitor final {
     bool thumb32_MUL(Reg n, Reg d, Reg m);
     bool thumb32_SMLAXY(Reg n, Reg a, Reg d, bool N, bool M, Reg m);
     bool thumb32_SMMLA(Reg n, Reg a, Reg d, bool R, Reg m);
+    bool thumb32_SMMLS(Reg n, Reg a, Reg d, bool R, Reg m);
     bool thumb32_SMMUL(Reg n, Reg d, bool R, Reg m);
     bool thumb32_SMUAD(Reg n, Reg d, bool M, Reg m);
     bool thumb32_SMUSD(Reg n, Reg d, bool M, Reg m);