--- nono/vm/bitmap.h	2026/04/29 17:04:31	1.1.1.2
+++ nono/vm/bitmap.h	2026/04/29 17:04:35	1.1.1.3
@@ -1,17 +1,18 @@
 //
 // nono
-// Copyright (C) 2018 isaki@NetBSD.org
+// Copyright (C) 2020 nono project
+// Licensed under nono-license.txt
 //
 
 #pragma once
 
-#include <atomic>
 #include "device.h"
+#include <atomic>
 
 class BitmapDevice
 	: public IODevice
 {
-	typedef IODevice inherited;
+	using inherited = IODevice;
 
 	static const uint32 plane0base = 0xb10c0000;
 	static const uint32 plane7end  = 0xb12c0000;
@@ -19,18 +20,18 @@ class BitmapDevice
 	static const uint32 fcset7end  = 0xb1500000;
  public:
 	BitmapDevice();
-	virtual ~BitmapDevice();
+	~BitmapDevice() override;
 
-	virtual void ResetHard();
+	void ResetHard() override;
 
-	virtual uint64 Read8(uint32 addr);
-	virtual uint64 Read16(uint32 addr);
-	virtual uint64 Read32(uint32 addr);
-	virtual uint64 Write8(uint32 addr, uint32 data);
-	virtual uint64 Write16(uint32 addr, uint32 data);
-	virtual uint64 Write32(uint32 addr, uint32 data);
-	virtual uint64 Peek8(uint32 addr);
-	virtual bool MonitorUpdate();
+	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 Write32(uint32 addr, uint32 data) override;
+	uint64 Peek8(uint32 addr) override;
+	bool MonitorUpdate() override;
 
 	// プレーン数を取得
 	int GetPlaneCount() const { return nplane; }