--- nono/vm/sysclk.cpp	2026/04/29 17:05:24	1.1.1.14
+++ nono/vm/sysclk.cpp	2026/04/29 17:05:28	1.1.1.15
@@ -27,10 +27,6 @@ SysClkDevice::SysClkDevice()
 	monitor.func = ToMonitorCallback(&SysClkDevice::MonitorUpdate);
 	monitor.SetSize(31, 3);
 	monitor.Regist(ID_MONITOR_SYSCLK);
-
-	event.func = ToEventCallback(&SysClkDevice::Callback);
-	event.code = 0;
-	event.Regist("System Clock");
 }
 
 // デストラクタ
@@ -57,6 +53,11 @@ SysClkDevice::Init()
 	// クロックの同期方法
 	sync_rt = GetRTCDevice()->GetSyncRealtime();
 
+	event.func = ToEventCallback(&SysClkDevice::Callback);
+	event.code = 0;
+	event.SetName("System Clock");
+	scheduler->RegistEvent(event);
+
 	return true;
 }
 
@@ -80,28 +81,38 @@ SysClkDevice::ResetHard(bool poweron)
 }
 
 busdata
-SysClkDevice::Read(uint32 offset)
+SysClkDevice::ReadPort(uint32 offset)
 {
 	// 1 ポートしかない
-	return GetInt();
+	busdata data = GetInt();
+	data |= BusData::Size1;
+	return data;
 }
 
 busdata
-SysClkDevice::Write(uint32 offset, uint32 data)
+SysClkDevice::WritePort(uint32 offset, uint32 data)
 {
 	// 何か書き込まれたら、フラグをクリア
 	putlog(3, "Clear system clock interrupt");
 	sysint = false;
 	ChangeInterrupt();
-	return 0;
+
+	busdata r = BusData::Size1;
+	return r;
 }
 
 busdata
-SysClkDevice::Peek(uint32 offset)
+SysClkDevice::PeekPort(uint32 offset)
 {
 	return GetInt();
 }
 
+bool
+SysClkDevice::PokePort(uint32 offset, uint32 data)
+{
+	return false;
+}
+
 void
 SysClkDevice::MonitorUpdate(Monitor *, TextScreen& screen)
 {
@@ -111,7 +122,7 @@ SysClkDevice::MonitorUpdate(Monitor *, T
 	y = 0;
 
 	int width = stime < 86400_sec ? 20 : 25;
-	screen.Print(0, y++, "Freq: %d Hz", freq);
+	screen.Print(0, y++, "Freq: %u Hz", freq);
 	screen.Print(0, y++, "Sync: %s", sync_rt ? "Real Time" : "Virtual Time");
 	screen.Print(0, y++, "Time: %*s", width, TimeToStr(stime).c_str());
 }