--- nono/vm/mpscc.cpp	2026/04/29 17:05:33	1.1.1.7
+++ nono/vm/mpscc.cpp	2026/04/29 17:05:38	1.1.1.8
@@ -105,10 +105,6 @@ MPSCCDevice::SetLogLevel(int loglevel_)
 bool
 MPSCCDevice::Init()
 {
-	if (inherited::Init() == false) {
-		return false;
-	}
-
 	interrupt = GetInterruptDevice();
 
 	scheduler->ConnectMessage(MessageID::HOSTCOM_RX, this,
@@ -405,7 +401,7 @@ MPSCCDevice::GetSR2B() const
 			stat = 3;
 		// VIS_321 とはビット順が逆
 		data &= ~0x70;
-		data |= bitrev(stat << 1);
+		data |= bitrev8(stat << 1);
 		break;
 	 default:
 		VMPANIC("corrupted mpscc.vis=%u", (uint)mpscc.vis);