@@ -638,7 +638,7 @@ void monitor_event(CPUS390XState *env,
void HELPER(monitor_call)(CPUS390XState *env, uint64_t monitor_code,
uint32_t monitor_class)
{
- g_assert(monitor_class <= 0xff);
+ g_assert(monitor_class <= 0xf);
if (env->cregs[8] & (0x8000 >> monitor_class)) {
monitor_event(env, monitor_code, monitor_class, GETPC());
@@ -3350,9 +3350,9 @@ static DisasJumpType op_mc(DisasContext *s, DisasOps *o)
#if !defined(CONFIG_USER_ONLY)
TCGv_i32 i2;
#endif
- const uint16_t monitor_class = get_field(s, i2);
+ const uint8_t monitor_class = get_field(s, i2);
- if (monitor_class & 0xff00) {
+ if (monitor_class & 0xf0) {
gen_program_exception(s, PGM_SPECIFICATION);
return DISAS_NORETURN;
}