--- nono/vm/sysport.h	2026/04/29 17:04:36	1.1.1.3
+++ nono/vm/sysport.h	2026/04/29 17:05:14	1.1.1.10
@@ -4,6 +4,10 @@
 // Licensed under nono-license.txt
 //
 
+//
+// システムポート
+//
+
 #pragma once
 
 #include "device.h"
@@ -21,27 +25,37 @@ struct SYSPORT
 
 	int contrast;
 	int rom_wait;	// 設定値。ウェイトにする時には +2 する
-	int ram_wait;
+	int ram_wait;	// 設定値。
+	bool key_ctrl;
+	uint pwoff_count;
 };
 
-class SysportDevice
-	: public IODevice
+class SysportDevice : public IODevice
 {
 	using inherited = IODevice;
- private:
+
 	static const uint32 baseaddr = 0xe8e000;
 
  public:
 	SysportDevice();
-	~SysportDevice() override;
+	virtual ~SysportDevice() override;
+
+	void ResetHard(bool poweron) override;
+
+	// KEYCTRL の状態を取得する
+	bool GetKeyCtrl() const {
+		return sysport.key_ctrl;
+	}
 
  protected:
 	// BusIO インタフェース
 	static const uint32 NPORT = 8;
-	uint64 Read(uint32 addr);
-	uint64 Write(uint32 addr, uint32 data);
-	uint64 Peek(uint32 addr);
+	uint64 Read(uint32 offset);
+	uint64 Write(uint32 offset, uint32 data);
+	uint64 Peek(uint32 offset);
 
  private:
 	struct SYSPORT sysport {};
 };
+
+extern SysportDevice *gSysport;