--- nono/vm/mpu88xx0.h	2026/04/29 17:04:52	1.1.1.8
+++ nono/vm/mpu88xx0.h	2026/04/29 17:04:55	1.1.1.9
@@ -22,8 +22,6 @@ class MPU88xx0Device : public MPUDevice
 	bool PowerOn() override;
 	void ResetHard() override;
 
-	void MonitorUpdate(TextScreen&) override;
-
 	// MPU を vtime [nsec] 分実行する
 	uint32 Run(uint32 vtime) override { return cpu->Run(vtime); }
 
@@ -50,22 +48,11 @@ class MPU88xx0Device : public MPUDevice
 	m88kcpu *GetCPU() const { return cpu.get(); }
 
  private:
-	std::unique_ptr<m88kcpu> cpu {};
-};
-
-// ATC モニタ
-class MPU88200ATC : public Object
-{
- public:
-	MPU88200ATC(m88200 *cmmu);
-	~MPU88200ATC() override { }
+	// レジスタモニター
+	DECLARE_MONITOR_CALLBACK(MonitorUpdate);
+	Monitor monitor { this };
 
-	void MonitorUpdate(TextScreen&) override;
-
- private:
-	m88200 *cmmu {};
+	std::unique_ptr<m88kcpu> cpu {};
 };
 
-extern std::unique_ptr<MPU88200ATC> gMPU88200ATC[2];
-
 #define gMPU88xx0	(dynamic_cast<MPU88xx0Device *>(gMPU.get()))