--- nono/vm/areaset.h	2026/04/29 17:04:28	1.1
+++ nono/vm/areaset.h	2026/04/29 17:05:28	1.1.1.10
@@ -1,29 +1,36 @@
 //
 // nono
-// Copyright (C) 2017 isaki@NetBSD.org
+// Copyright (C) 2020 nono project
+// Licensed under nono-license.txt
 //
 
 #pragma once
 
 #include "device.h"
 
-class AreaSetDevice
-	: public IODevice
+class X68kIODevice;
+
+class AreaSetDevice : public IODevice
 {
-	typedef IODevice inherited;
- private:
-	static const int baseaddr = 0xe86000;
+	using inherited = IODevice;
+
+	static const uint32 baseaddr = 0xe86000;
 
  public:
 	AreaSetDevice();
-	virtual ~AreaSetDevice();
+	~AreaSetDevice() override;
+
+	bool Init() override;
+	void ResetHard(bool poweron) override;
 
-	virtual uint64 Read8(uint32 addr);
-	virtual uint64 Read16(uint32 addr);
-	virtual uint64 Write8(uint32 addr, uint32 data);
-	virtual uint64 Write16(uint32 addr, uint32 data);
-	virtual uint64 Peek8(uint32 addr);
+ protected:
+	// BusIO インタフェース
+	static const uint32 NPORT = 1;
+	busdata ReadPort(uint32 offset);
+	busdata WritePort(uint32 offset, uint32 data);
+	busdata PeekPort(uint32 offset);
+	bool PokePort(uint32 offset, uint32 data);
 
  private:
-	uint8 limit = 0;
+	X68kIODevice *x68kio {};
 };