--- nono/debugger/debugger_m680x0.h	2026/04/29 17:04:33	1.1.1.2
+++ nono/debugger/debugger_m680x0.h	2026/04/29 17:04:40	1.1.1.4
@@ -29,13 +29,15 @@ class DebuggerMD_m680x0 : public Debugge
 
 	void SetStepOut() override;
 	bool IsStepOut() const override;
+	bool IsOpStepIn(uint32 op) 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;
 
-	Object& GetBrHist() const override { return cpu->brhist; }
+	BranchHistory& GetBrHist() const override { return cpu->brhist; }
+	BranchHistory& GetExHist() const override { return cpu->exhist; }
 
 	bool CheckLEA(uint32 laddr) override { return false; }
 
@@ -46,13 +48,15 @@ class DebuggerMD_m680x0 : public Debugge
 	std::string FormatDisasmLive(const std::string& mnemonic,
 		const std::vector<uint8>& bin) override;
 
+	const char *GetExceptionName(int vector) const override;
+
  private:
-	m68kcpu *cpu = NULL;		// CPU コア
-	m68kreg prev {};			// 前回のレジスタセットのコピー
+	m68kcpu *cpu {};		// 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;
+	saddr_t last_lpage {};
+	uint32  last_ppage {};
 
 	const char *CondStr(const std::vector<uint16>& ir);
 	bool IsOPcc(uint16 op);
@@ -66,6 +70,6 @@ class DebuggerMD_m680x0 : public Debugge
 	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;
+	uint32 so_a7 {};			// ステップアウト判定用
+	uint16 so_sr {};
 };