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-rw-r--r--src/core/arm/dyncom/arm_dyncom_thumb.cpp11
1 files changed, 11 insertions, 0 deletions
diff --git a/src/core/arm/dyncom/arm_dyncom_thumb.cpp b/src/core/arm/dyncom/arm_dyncom_thumb.cpp
index 78552293a..270d966b2 100644
--- a/src/core/arm/dyncom/arm_dyncom_thumb.cpp
+++ b/src/core/arm/dyncom/arm_dyncom_thumb.cpp
@@ -276,6 +276,17 @@ tdstate thumb_translate(u32 addr, u32 instr, u32* ainstr, u32* inst_size) {
|(tinstr & 0x007F); // off7
} else if ((tinstr & 0x0F00) == 0x0e00) {
*ainstr = 0xEF000000 | 0x180000; // base | BKPT mask
+ } else if ((tinstr & 0x0F00) == 0x0200) {
+ static const ARMword subset[4] = {
+ 0xE6BF0070, // SXTH
+ 0xE6AF0070, // SXTB
+ 0xE6FF0070, // UXTH
+ 0xE6EF0070, // UXTB
+ };
+
+ *ainstr = subset[BITS(tinstr, 6, 7)] // base
+ | (BITS(tinstr, 0, 2) << 12) // Rd
+ | BITS(tinstr, 3, 5); // Rm
} else if ((tinstr & 0x0F00) == 0x0a00) {
static const ARMword subset[3] = {
0xE6BF0F30, // REV