--- nono/vm/pluto.h	2026/04/29 17:04:28	1.1
+++ nono/vm/pluto.h	2026/04/29 17:04:36	1.1.1.3
@@ -1,32 +1,37 @@
 //
 // nono
-// Copyright (C) 2017 isaki@NetBSD.org
+// Copyright (C) 2020 nono project
+// Licensed under nono-license.txt
 //
 
 #pragma once
 
-#include <sys/time.h>
-
 #include "device.h"
+#include <sys/time.h>
 
 class PlutoDevice
 	: public IODevice
 {
-	typedef IODevice inherited;
+	using inherited = IODevice;
  public:
 	PlutoDevice();
-	virtual ~PlutoDevice();
+	~PlutoDevice() override;
 
-	virtual uint64 Read8(uint32 addr);
-	virtual uint64 Read16(uint32 addr);
-	virtual uint64 Write8(uint32 addr, uint32 data);
-	virtual uint64 Write16(uint32 addr, uint32 data);
-	virtual uint64 Peek8(uint32 addr);
-
-	// ベンチマークモード。コマンドライン引数で指定される。
-	static int benchmark_mode;
+	uint64 Read8(uint32 addr) override;
+	uint64 Read16(uint32 addr) override;
+	uint64 Read32(uint32 addr) override;
+	uint64 Write8(uint32 addr, uint32 data) override;
+	uint64 Write16(uint32 addr, uint32 data) override;
+	uint64 Peek8(uint32 addr) override;
 
  private:
+	// ROM
+	static const uint16 rom[];
+
+	// ホストファイル起動
+	uint32 ROM_Load();
+
+	// ベンチマーク
 	void write_8_benchmark(uint32 addr, uint32 data);
 	void benchmark_start(uint32 data);
 	void benchmark_end();