--- nono/vm/sio.h	2026/04/29 17:05:10	1.1.1.9
+++ nono/vm/sio.h	2026/04/29 17:05:24	1.1.1.11
@@ -10,27 +10,29 @@
 
 #pragma once
 
-#include "device.h"
 #include "mpscc.h"
 
+class Keyboard;
+
 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;
@@ -68,8 +70,12 @@ class SIODevice : public MPSCCDevice
 	DECLARE_MONITOR_CALLBACK(MonitorUpdate);
 	void MonitorUpdateCh(TextScreen&, int ch, int xbase, int ybase);
 
+	Keyboard *keyboard {};
+
 	static const char * const crnames[16];
 	static const char * const srnames[16];
 };
 
-extern SIODevice *gSIO;
+static inline SIODevice *GetSIODevice() {
+	return Object::GetObject<SIODevice>(OBJ_MPSCC);
+}