diff --git a/src/arm/isa-thumb.c b/src/arm/isa-thumb.c
index 3488e70e2..62d580c71 100644
--- a/src/arm/isa-thumb.c
+++ b/src/arm/isa-thumb.c
@@ -196,7 +196,23 @@ DEFINE_DATA_FORM_3_INSTRUCTION_THUMB(SUB2, THUMB_SUBTRACTION(cpu->gprs[rd], cpu-
 
 DEFINE_DATA_FORM_5_INSTRUCTION_THUMB(AND, cpu->gprs[rd] = cpu->gprs[rd] & cpu->gprs[rn]; THUMB_NEUTRAL_S( , , cpu->gprs[rd]))
 DEFINE_DATA_FORM_5_INSTRUCTION_THUMB(EOR, cpu->gprs[rd] = cpu->gprs[rd] ^ cpu->gprs[rn]; THUMB_NEUTRAL_S( , , cpu->gprs[rd]))
-DEFINE_DATA_FORM_5_INSTRUCTION_THUMB(LSL2, ARM_STUB)
+DEFINE_DATA_FORM_5_INSTRUCTION_THUMB(LSL2,
+	int rs = cpu->gprs[rn] & 0xFF;
+	if (rs) {
+		if (rs < 32) {
+			cpu->cpsr.c = cpu->gprs[rd] & (1 << (32 - rs));
+			cpu->gprs[rd] <<= rs;
+		} else {
+			if (rs > 32) {
+				cpu->cpsr.c = 0;
+			} else {
+				cpu->cpsr.c = cpu->gprs[rd] & 0x00000001;
+			}
+			cpu->gprs[rd] = 0;
+		}
+	}
+	THUMB_NEUTRAL_S( , , cpu->gprs[rd]))
+
 DEFINE_DATA_FORM_5_INSTRUCTION_THUMB(LSR2,
 	int rs = cpu->gprs[rn] & 0xFF;
 	if (rs) {