--- nono/vm/crtc.h	2026/04/29 17:05:10	1.1.1.7
+++ nono/vm/crtc.h	2026/04/29 17:05:33	1.1.1.12
@@ -10,8 +10,12 @@
 
 #pragma once
 
+#include "device.h"
 #include "event.h"
-#include "monitor.h"
+
+class MFPDevice;
+class TVRAMDevice;
+class VideoCtlrDevice;
 
 struct CRTC
 {
@@ -68,7 +72,7 @@ struct CRTC
 	//
 	//      15  14  13  12  11  10   9   8   7   6   5   4   3   2   1   0
 	//     +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
-	// R20 |         -         |SIZ|  COL  |     -     |HF |  VD   |   HD  |
+	// R20 |       -       |MEM|SIZ|  COL  |     -     |HF |  VD   |   HD  |
 	//     +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
 	// R21 |           -           |MEN|SA |       AP      |       CP      |
 	//     +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
@@ -76,7 +80,10 @@ struct CRTC
 	//     +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
 	// R23 |                          マスクパターン                       |
 	//     +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
-	// R24 |                       -                       |RC | 0 |FC |VI |
+	//
+	//      15  14  13  12  11  10   9   8   7   6   5   4   3   2   1   0
+	//     +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
+	// OP  |                       -                       |RC | 0 |FC |VI |
 	//     +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
 
 	uint16 r[24];
@@ -109,6 +116,14 @@ struct CRTC
 	static const uint32 REG_END	= 0x18;
 	static const uint32 REG_OP	= 0x240;	// $E80480
 
+	// R20
+	static const uint16 R20_MEM	= 0x0800;
+	static const uint16 R20_SIZ	= 0x0400;
+	static const uint16 R20_COL	= 0x0300;
+	static const uint16 R20_HF	= 0x0010;
+	static const uint16 R20_VD	= 0x000c;
+	static const uint16 R20_HD	= 0x0003;
+
 	// 動作ポート
 	static const uint32 OP_RC	= 0x08;		// ラスターコピー開始(%1)
 	static const uint32 OP_FC	= 0x02;		// 高速クリア開始(%1)
@@ -120,29 +135,31 @@ class CRTCDevice : public IODevice
 	using inherited = IODevice;
  public:
 	CRTCDevice();
-	virtual ~CRTCDevice() override;
+	~CRTCDevice() override;
 
+	bool Init() override;
 	void ResetHard(bool poweron) override;
 
- protected:
-	// BusIO インタフェース
-	static const uint NPORT = 0x800;
-	uint64 Read(uint32 offset);
-	uint64 Write(uint32 offset, uint32 data);
-	uint64 Peek(uint32 offset);
+	busdata Read(busaddr addr) override;
+	busdata Write(busaddr addr, uint32 data) override;
+	busdata Peek1(uint32 offset) override;
 
  private:
+	static inline uint32 Decoder(uint32 addr);
+
+	// ワード読み出し
+	busdata Peek2(uint32 addr) const;
 	// レジスタへの書き込み
 	void SetReg(uint32 offset, uint32 data);
 	// 動作ポートへの書き込み
 	void WriteOp(uint32 data);
 
-	// テキスト画面のラスターコピー
-	void StartRasterCopy();
-
 	// 水平同期信号イベント
 	void HSyncCallback(Event& ev);
 
+	// ラスターコピー完了イベント
+	void RasterCallback(Event& ev);
+
 	// 垂直表示期間イベント
 	void VDispCallback(Event& ev);
 
@@ -150,10 +167,16 @@ class CRTCDevice : public IODevice
 
 	struct CRTC crtc {};
 
+	// ラスターコピー指示
+	bool raster_copy {};
+
+	MFPDevice *mfp {};
+	TVRAMDevice *tvram {};
+	VideoCtlrDevice *videoctlr {};
+
 	Event hsync_event { this };
 	Event vdisp_event { this };
+	Event raster_event { this };
 
-	Monitor monitor { this };
+	Monitor *monitor {};
 };
-
-extern CRTCDevice *gCRTC;