--- nono/vm/sio.h	2026/04/29 17:05:17	1.1.1.10
+++ nono/vm/sio.h	2026/04/29 17:05:24	1.1.1.11
@@ -10,7 +10,6 @@
 
 #pragma once
 
-#include "device.h"
 #include "mpscc.h"
 
 class Keyboard;
@@ -20,20 +19,20 @@ class SIODevice : public MPSCCDevice
 	using inherited = MPSCCDevice;
  public:
 	SIODevice();
-	virtual ~SIODevice() override;
+	~SIODevice() override;
 
 	bool Init() override;
 	void ResetHard(bool poweron) override;
 
 	// BusIO インタフェース
 	// (内蔵 ROM からのアクセス用に特別に public にしてある)
-	uint64 Read(uint32 offset);
-	uint64 Write(uint32 offset, uint32 data);
+	busdata Read(uint32 offset);
+	busdata Write(uint32 offset, uint32 data);
 
  protected:
 	// BusIO インタフェース
 	static const uint32 NPORT = 4;
-	uint64 Peek(uint32 offset);
+	busdata Peek(uint32 offset);
 
 	void Tx(int ch, uint32 data) override;
 	uint GetHighestInt() const override;