--- nono/vm/sysclk.h	2026/04/29 17:05:25	1.1.1.10
+++ nono/vm/sysclk.h	2026/04/29 17:05:33	1.1.1.12
@@ -12,7 +12,6 @@
 
 #include "device.h"
 #include "event.h"
-#include "monitor.h"
 
 class InterruptDevice;
 
@@ -26,14 +25,15 @@ class SysClkDevice : public IODevice
 	bool Init() override;
 	void ResetHard(bool poweron) override;
 
-	int GetFreq() const { return freq; }
+	uint GetFreq() const { return freq; }
 
  protected:
 	// BusIO インタフェース
 	static const uint32 NPORT = 1;
-	busdata Read(uint32 offset);
-	busdata Write(uint32 offset, uint32 data);
-	busdata Peek(uint32 offset);
+	busdata ReadPort(uint32 offset);
+	busdata WritePort(uint32 offset, uint32 data);
+	busdata PeekPort(uint32 offset);
+	bool PokePort(uint32 offset, uint32 data);
 
  private:
 	// イベントコールバック
@@ -67,7 +67,7 @@ class SysClkDevice : public IODevice
 
 	InterruptDevice *interrupt {};
 
-	Monitor monitor { this };
+	Monitor *monitor {};
 };
 
 static inline SysClkDevice *GetSysClkDevice() {