--- nono/m680x0/m68030mmu.h	2026/04/29 17:04:28	1.1
+++ nono/m680x0/m68030mmu.h	2026/04/29 17:04:34	1.1.1.2
@@ -1,6 +1,7 @@
 //
 // nono
-// Copyright (C) 2017 isaki@NetBSD.org
+// Copyright (C) 2020 nono project
+// Licensed under nono-license.txt
 //
 
 #pragma once
@@ -170,13 +171,13 @@ struct m68030ATCLine
 };
 
 // ATC のテーブル
-class m68030ATCTable
+class m68030ATCTable final
 {
  public:
 	static const int LINES = 22;
 
 	m68030ATCTable();
-	virtual ~m68030ATCTable() { }
+	~m68030ATCTable() { }
 
 #if !defined(ATC_SINGLE)
 	// 空きエントリを取得。
@@ -232,12 +233,12 @@ class m68030ATCTable
 };
 
 // ATC (Address Translation Cache)
-class m68030ATC
+class m68030ATC final
 {
 	friend class MPUATC;
  public:
 	m68030ATC(m68kcpu *);
-	virtual ~m68030ATC() { }
+	~m68030ATC() { }
 
 	// エントリをサーチ&更新
 	const m68030ATCLine& fill_fetch();