--- nono/debugger/debugger_m680x0.h	2026/04/29 17:04:30	1.1.1.1
+++ nono/debugger/debugger_m680x0.h	2026/04/29 17:04:33	1.1.1.2
@@ -1,63 +1,71 @@
 //
 // nono
-// Copyright (C) 2020 isaki@NetBSD.org
+// Copyright (C) 2020 nono project
+// Licensed under nono-license.txt
 //
 
 #pragma once
 
 #include "debugger_private.h"
+#include "mpu680x0.h"
 #include "m68030.h"
 #include "m68030disasm.h"
 
 class DebuggerMD_m680x0 : public DebuggerMD
 {
-	typedef DebuggerMD inherited;
+	using inherited = DebuggerMD;
  public:
-	DebuggerMD_m680x0(Debugger *parg, m68kcpu *carg)
-		: inherited(parg)
-	{
-		cpu = carg;
-	}
-	virtual ~DebuggerMD_m680x0() { }
-
-	void ReqSet(uint32 flag) { cpu->atomic_reqflag |= flag; }
-	void ReqClr(uint32 flag) { cpu->atomic_reqflag &= ~flag; }
-
-	bool IsSuper() const { return cpu->reg.s; }
-	bool MMUEnabled() const { return cpu->mmu_enable; }
-	uint64 TranslateAddr(saddr_t laddr);
-
-	uint32 GetPC() const { return RegPC; }
-
-	void SetStepOut();
-	bool IsStepOut() const;
-	uint64 GetRegAddr(const char *name) const;
-	void BackupRegs() { prev = cpu->reg; }
-	void ShowRegMain(Console *cons);
-	void ShowRegCtrl(Console *cons) {}
-	void ShowRegFPU(Console *cons);
-	void ShowRegMMU(Console *cons);
-	void ShowRegATC(Console *cons);
-	void ShowRegOther(Console *cons);
+	DebuggerMD_m680x0(Debugger *parent, m68kcpu *cpu);
+	~DebuggerMD_m680x0() override;
+
+	void ReqSet(uint32 flag) override { cpu->atomic_reqflag |= flag; }
+	void ReqClr(uint32 flag) override { cpu->atomic_reqflag &= ~flag; }
+
+	bool IsSuper() const override { return cpu->reg.s; }
+	bool MMUEnabled() const override { return cpu->mmu_enable; }
+	uint64 TranslateAddr(saddr_t laddr) override;
+
+	uint32 GetPC() const override { return RegPC; }
+
+	void SetStepOut() override;
+	bool IsStepOut() const override;
+	uint64 GetRegAddr(const char *name) const override;
+	void BackupRegs() override { prev = cpu->reg; }
+	bool ShowRegister(Console *cons, const std::vector<std::string>& args)
+		override;
+	const HelpMessages& GetRegisterHelp() const override;
 
-	bool CheckLEA(uint32 laddr) { return false; }
+	Object& GetBrHist() const override { return cpu->brhist; }
+
+	bool CheckLEA(uint32 laddr) override { return false; }
 
 	bool Disassemble(saddr_t laddr,
-		std::string& mnemonic, std::vector<uint8>& bin);
+		std::string& mnemonic, std::vector<uint8>& bin) override;
 	std::string FormatDisasm(const std::string& mnemonic,
-		const std::vector<uint8>& bin);
+		const std::vector<uint8>& bin) override;
 	std::string FormatDisasmLive(const std::string& mnemonic,
-		const std::vector<uint8>& bin);
+		const std::vector<uint8>& bin) override;
 
  private:
 	m68kcpu *cpu = NULL;		// CPU コア
 	m68kreg prev {};			// 前回のレジスタセットのコピー
 
+	// 前回アクセス時の論理ページ。.addr == 0xffffffff なら無効。
+	saddr_t last_lpage;
+	uint32  last_ppage;
+
 	const char *CondStr(const std::vector<uint16>& ir);
 	bool IsOPcc(uint16 op);
 	bool IsDBcc(uint16 op);
 	bool IsCond(uint16 op);
 
+	static const HelpMessages HelpMsgRegister;
+	void ShowRegMain(Console *cons);
+	void ShowRegFPU(Console *cons);
+	void ShowRegMMU(Console *cons);
+	void ShowRegATC(Console *cons);
+	void ShowRegOther(Console *cons);
+
 	uint32 so_a7 = 0;			// ステップアウト判定用
 	uint16 so_sr = 0;
 };