diff --git a/src/frontend/A32/decoder/thumb32.inc b/src/frontend/A32/decoder/thumb32.inc
index acee99a4..5dfc7df9 100644
--- a/src/frontend/A32/decoder/thumb32.inc
+++ b/src/frontend/A32/decoder/thumb32.inc
@@ -200,7 +200,7 @@ INST(thumb32_SXTAH,          "SXTAH",                    "111110100000nnnn1111dd
 INST(thumb32_UXTH,           "UXTH",                     "11111010000111111111dddd10rrmmmm")
 INST(thumb32_UXTAH,          "UXTAH",                    "111110100001nnnn1111dddd10rrmmmm")
 INST(thumb32_SXTB16,         "SXTB16",                   "11111010001011111111dddd10rrmmmm")
-//INST(thumb32_SXTAB16,        "SXTAB16",                  "111110100010----1111----1-------")
+INST(thumb32_SXTAB16,        "SXTAB16",                  "111110100010nnnn1111dddd10rrmmmm")
 //INST(thumb32_UXTB16,         "UXTB16",                   "11111010001111111111----1-------")
 //INST(thumb32_UXTAB16,        "UXTAB16",                  "111110100011----1111----1-------")
 //INST(thumb32_SXTB,           "SXTB",                     "11111010010011111111----1-------")
diff --git a/src/frontend/A32/translate/impl/thumb32_data_processing_register.cpp b/src/frontend/A32/translate/impl/thumb32_data_processing_register.cpp
index 0c5715fe..0a76a8ce 100644
--- a/src/frontend/A32/translate/impl/thumb32_data_processing_register.cpp
+++ b/src/frontend/A32/translate/impl/thumb32_data_processing_register.cpp
@@ -25,6 +25,21 @@ bool ThumbTranslatorVisitor::thumb32_SXTB16(Reg d, SignExtendRotation rotate, Re
     return true;
 }
 
+bool ThumbTranslatorVisitor::thumb32_SXTAB16(Reg n, Reg d, SignExtendRotation rotate, Reg m) {
+    if (d == Reg::PC || m == Reg::PC) {
+        return UnpredictableInstruction();
+    }
+
+    const auto rotated = Rotate(ir, m, rotate);
+    const auto low_byte = ir.And(rotated, ir.Imm32(0x00FF00FF));
+    const auto sign_bit = ir.And(rotated, ir.Imm32(0x00800080));
+    const auto addend = ir.Or(low_byte, ir.Mul(sign_bit, ir.Imm32(0x1FE)));
+    const auto result = ir.PackedAddU16(addend, ir.GetRegister(n)).result;
+
+    ir.SetRegister(d, result);
+    return true;
+}
+
 bool ThumbTranslatorVisitor::thumb32_SXTH(Reg d, SignExtendRotation rotate, Reg m) {
     if (d == 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 af2bf46d..c4503b43 100644
--- a/src/frontend/A32/translate/impl/translate_thumb.h
+++ b/src/frontend/A32/translate/impl/translate_thumb.h
@@ -123,6 +123,7 @@ struct ThumbTranslatorVisitor final {
 
     // thumb32 data processing (register) instructions
     bool thumb32_SXTB16(Reg d, SignExtendRotation rotate, Reg m);
+    bool thumb32_SXTAB16(Reg n, Reg d, SignExtendRotation rotate, Reg m);
     bool thumb32_SXTH(Reg d, SignExtendRotation rotate, Reg m);
     bool thumb32_SXTAH(Reg n, Reg d, SignExtendRotation rotate, Reg m);
     bool thumb32_UXTH(Reg d, SignExtendRotation rotate, Reg m);