--- nono/vm/sysport.h	2026/04/29 17:05:11	1.1.1.9
+++ nono/vm/sysport.h	2026/04/29 17:06:01	1.1.1.15
@@ -12,21 +12,30 @@
 
 #include "device.h"
 
+class CGROMDevice;
+class IPLROM1Device;
+class Keyboard;
+class MainRAMDevice;
+class NMIDevice;
+class ROMDevice;
+class SRAMDevice;
+class VideoCtlrDevice;
+
 struct SYSPORT
 {
-	static const int CONTRAST	= 0;	// $E8E001
-	static const int SCOPE3D	= 1;	// $E8E003
-	static const int IMAGEUNIT	= 2;	// $E8E005
-	static const int KEY		= 3;	// $E8E007
-	static const int WAIT		= 4;	// $E8E009
-	static const int MPU		= 5;	// $E8E00B
-	static const int SRAMWP		= 6;	// $E8E00D
-	static const int POWEROFF	= 7;	// $E8E00F
-
-	int contrast;
-	int rom_wait;	// 設定値。ウェイトにする時には +2 する
-	int ram_wait;	// 設定値。
+	static const uint CONTRAST	= 0;	// $E8E001
+	static const uint SCOPE3D	= 1;	// $E8E003
+	static const uint IMAGEUNIT	= 2;	// $E8E005
+	static const uint KEY		= 3;	// $E8E007
+	static const uint WAIT		= 4;	// $E8E009
+	static const uint MPU		= 5;	// $E8E00B
+	static const uint SRAMWP	= 6;	// $E8E00D
+	static const uint POWEROFF	= 7;	// $E8E00F
+
+	int rom_wait;	// システムポートへの書き込み値ではなく ROM への指示値。
+	int ram_wait;	// システムポートへの書き込み値ではなく RAM への指示値。
 	bool key_ctrl;
+	uint pwoff_count;
 };
 
 class SysportDevice : public IODevice
@@ -37,8 +46,9 @@ class SysportDevice : public IODevice
 
  public:
 	SysportDevice();
-	virtual ~SysportDevice() override;
+	~SysportDevice() override;
 
+	bool Init() override;
 	void ResetHard(bool poweron) override;
 
 	// KEYCTRL の状態を取得する
@@ -49,12 +59,28 @@ class SysportDevice : public IODevice
  protected:
 	// BusIO インタフェース
 	static const uint32 NPORT = 8;
-	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:
+	DECLARE_MONITOR_SCREEN(MonitorScreen);
+
 	struct SYSPORT sysport {};
+
+	Monitor *monitor {};
+
+	CGROMDevice *cgrom {};
+	IPLROM1Device *iplrom1 {};
+	ROMDevice *iplrom2 {};
+	Keyboard *keyboard {};
+	MainRAMDevice *mainram {};
+	NMIDevice *nmi {};
+	SRAMDevice *sram {};
+	VideoCtlrDevice *videoctlr {};
 };
 
-extern SysportDevice *gSysport;
+inline SysportDevice *GetSysportDevice() {
+	return Object::GetObject<SysportDevice>(OBJ_SYSPORT);
+}