--- nono/vm/crtc2.h	2026/04/29 17:04:55	1.1.1.7
+++ nono/vm/crtc2.h	2026/04/29 17:05:28	1.1.1.11
@@ -4,38 +4,46 @@
 // Licensed under nono-license.txt
 //
 
+//
+// CRTC-II (HD6445)
+//
+
 #pragma once
 
 #include "device.h"
-#include "scheduler.h"
+#include "event.h"
+
+class Renderer;
 
 class CRTC2Device : public IODevice
 {
 	using inherited = IODevice;
  public:
 	CRTC2Device();
-	virtual ~CRTC2Device() override;
+	~CRTC2Device() override;
 
-	void ResetHard() override;
+	bool Init() override;
+	void ResetHard(bool poweron) override;
 
  protected:
 	// BusIO インタフェース
 	static const uint32 NPORT = 2;
-	uint64 Read(uint32 offset);
-	uint64 Write(uint32 offset, uint32 data);
-	uint64 Peek(uint32 offset);
+	busdata ReadPort(uint32 offset);
+	busdata WritePort(uint32 offset, uint32 data);
+	busdata PeekPort(uint32 offset);
+	bool PokePort(uint32 offset, uint32 data);
 
  private:
 	// 垂直表示期間イベント
 	void VDispCallback(Event& ev);
 
 	// アドレスレジスタ
-	int ar {};
+	uint ar {};
 
 	// レジスタ
 	uint8 reg[40] {};
 
+	Renderer *renderer {};
+
 	Event vdisp_event { this };
 };
-
-extern std::unique_ptr<CRTC2Device> gCRTC2;