--- nono/vm/mpu88xx0.h	2026/04/29 17:04:32	1.1.1.1
+++ nono/vm/mpu88xx0.h	2026/04/29 17:04:36	1.1.1.2
@@ -1,6 +1,7 @@
 //
 // nono
-// Copyright (C) 2020 isaki@NetBSD.org
+// Copyright (C) 2020 nono project
+// Licensed under nono-license.txt
 //
 
 // MPU (m88xx0)
@@ -12,33 +13,33 @@
 
 class MPU88xx0Device : public MPUDevice
 {
-	typedef MPUDevice inherited;
+	using inherited = MPUDevice;
  public:
 	MPU88xx0Device(uint32 reset_addr);
-	virtual ~MPU88xx0Device();
+	~MPU88xx0Device() override;
 
-	virtual void ResetHard();
+	void ResetHard() override;
 
-	virtual bool MonitorUpdate();
+	bool MonitorUpdate() override;
 
 	// MPU を request サイクル分実行する
-	virtual uint32 Run(uint64 request) { return cpu->Run(request); }
+	uint32 Run(uint64 request) override { return cpu->Run(request); }
 
 	// 基準サイクル数を取得
-	virtual uint64 total_cycle() const { return cpu->total_cycle; }
+	uint64 total_cycle() const override { return cpu->total_cycle; }
 
 	// MPU の処理をこの命令で中断させる。
-	virtual void Release() { cpu->Release(); }
+	void Release() override { cpu->Release(); }
 
 	// 現在実行中の命令の PC を取得
-	virtual uint32 GetPPC() const { return cpu->Getxip(); }
+	uint32 GetPPC() const override { return cpu->Getxip(); }
 
 	// 現在アクセス中の論理アドレス、物理アドレスを取得。
-	virtual uint32 GetLaddr() const { return 0; }	// XXX NotImplemented
-	virtual uint32 GetPaddr() const { return 0; }	// XXX NotImplemented
+	uint32 GetLaddr() const override { return 0; }	// XXX NotImplemented
+	uint32 GetPaddr() const override { return 0; }	// XXX NotImplemented
 
 	// 割り込み発生を MPU に通知
-	virtual void Interrupt(int dummy) { cpu->Interrupt(); }
+	void Interrupt(Object *src, int level) override;
 
 	// CPU コアを取得 (主にデバッグ用途)
 	m88kcpu *GetCPU() const { return cpu.get(); }
@@ -50,4 +51,19 @@ class MPU88xx0Device : public MPUDevice
 	std::unique_ptr<m88kcpu> cpu;
 };
 
+// ATC モニタ
+class MPU88200ATC : public Object
+{
+ public:
+	MPU88200ATC(m88200 *cmmu);
+	~MPU88200ATC() override { }
+
+	bool MonitorUpdate() override;
+
+ private:
+	m88200 *cmmu = NULL;
+};
+
+extern std::unique_ptr<MPU88200ATC> gMPU88200ATC[2];
+
 #define gMPU88xx0	(dynamic_cast<MPU88xx0Device *>(gMPU.get()))