diff options
| -rw-r--r-- | target/arm/translate.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/target/arm/translate.c b/target/arm/translate.c index e32e38c..fe3f442 100644 --- a/target/arm/translate.c +++ b/target/arm/translate.c @@ -10485,7 +10485,12 @@ static int disas_thumb2_insn(CPUARMState *env, DisasContext *s, uint16_t insn_hw } break; case 4: /* bxj */ - /* Trivial implementation equivalent to bx. */ + /* Trivial implementation equivalent to bx. + * This instruction doesn't exist at all for M-profile. + */ + if (arm_dc_feature(s, ARM_FEATURE_M)) { + goto illegal_op; + } tmp = load_reg(s, rn); gen_bx(s, tmp); break; |