--- nono/vm/scc.cpp	2026/04/29 17:04:36	1.1.1.3
+++ nono/vm/scc.cpp	2026/04/29 17:04:42	1.1.1.4
@@ -46,6 +46,8 @@ SCCDevice::ResetHard()
 uint64
 SCCDevice::Read(uint32 addr)
 {
+	gMPU->AddCycle(41);	// InsideOut p.135
+
 	switch (addr) {
 	 case 0:	// $E98001
 		return ReadCtrl(&cr.chan[1]);
@@ -68,6 +70,8 @@ SCCDevice::Read(uint32 addr)
 uint64
 SCCDevice::Write(uint32 addr, uint32 data)
 {
+	gMPU->AddCycle(49);	// InsideOut p.135
+
 	switch (addr) {
 	 case 0:	// $E98001
 		WriteCtrl(&cr.chan[1], data);