diff options
Diffstat (limited to 'target/arm/translate.c')
| -rw-r--r-- | target/arm/translate.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/target/arm/translate.c b/target/arm/translate.c index c4acff5f99..e32e38cadd 100644 --- a/target/arm/translate.c +++ b/target/arm/translate.c @@ -10403,7 +10403,8 @@ static int disas_thumb2_insn(CPUARMState *env, DisasContext *s, uint16_t insn_hw case 0: /* msr cpsr. */ if (arm_dc_feature(s, ARM_FEATURE_M)) { tmp = load_reg(s, rn); - addr = tcg_const_i32(insn & 0xff); + /* the constant is the mask and SYSm fields */ + addr = tcg_const_i32(insn & 0xfff); gen_helper_v7m_msr(cpu_env, addr, tmp); tcg_temp_free_i32(addr); tcg_temp_free_i32(tmp); |