diff options
| -rw-r--r-- | target-arm/translate.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/target-arm/translate.c b/target-arm/translate.c index bdfcdf169c..2c1c2a7085 100644 --- a/target-arm/translate.c +++ b/target-arm/translate.c @@ -8739,6 +8739,10 @@ static void disas_arm_insn(DisasContext *s, unsigned int insn) ARCH(6T2); shift = (insn >> 7) & 0x1f; i = (insn >> 16) & 0x1f; + if (i < shift) { + /* UNPREDICTABLE; we choose to UNDEF */ + goto illegal_op; + } i = i + 1 - shift; if (rm == 15) { tmp = tcg_temp_new_i32(); |