--- nono/vm/crtc2.h	2026/04/29 17:05:24	1.1.1.10
+++ nono/vm/crtc2.h	2026/04/29 17:05:33	1.1.1.12
@@ -13,6 +13,7 @@
 #include "device.h"
 #include "event.h"
 
+class LunafbDevice;
 class Renderer;
 
 class CRTC2Device : public IODevice
@@ -28,20 +29,22 @@ class CRTC2Device : public IODevice
  protected:
 	// BusIO インタフェース
 	static const uint32 NPORT = 2;
-	busdata Read(uint32 offset);
-	busdata Write(uint32 offset, uint32 data);
-	busdata 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] {};
 
+	LunafbDevice *lunafb {};
 	Renderer *renderer {};
 
 	Event vdisp_event { this };