--- nono/vm/scc.h	2026/04/29 17:04:59	1.1.1.7
+++ nono/vm/scc.h	2026/04/29 17:05:06	1.1.1.8
@@ -20,8 +20,8 @@ class SCCDevice : public uPD7201Device
 	virtual ~SCCDevice() override;
 
 	// XXX 親の同名メソッドと名前分けたほうがいいか
-	uint8 ReadCtrl(struct SIO::channel *chan) override;
-	void WriteCtrl(struct SIO::channel *chan, uint32 data) override;
+	uint8 ReadCtrl(SIO::channel *chan) override;
+	void WriteCtrl(SIO::channel *chan, uint32 data) override;
 
 	// 割り込みアクノリッジ
 	int InterruptAcknowledge();
@@ -33,9 +33,34 @@ class SCCDevice : public uPD7201Device
 	uint64 Write(uint32 offset, uint32 data);
 	uint64 Peek(uint32 offset);
 
+	void Tx(int ch, uint32 data) override;
+
+	// 指定のレジスタ名を返す
+	const char *CRName(const SIO::channel *chan, int n) const override;
+	const char *SRName(const SIO::channel *chan, int n) const override;
+
+	// WR, RR のほうが通りがいいので結局用意する
+	const char *WRName(const SIO::channel *chan, int n) const {
+		return CRName(chan, n);
+	}
+	const char *WRName(const SIO::channel *chan) const {
+		return inherited::CRName(chan);
+	}
+	const char *RRName(const SIO::channel *chan, int n) const {
+		return SRName(chan, n);
+	}
+	const char *RRName(const SIO::channel *chan) const {
+		return inherited::SRName(chan);
+	}
+
  private:
 	void Interrupt() override;
-	void WriteCR5(struct SIO::channel *chan, uint32 data) override;
+	void WriteCR0(SIO::channel *chan, uint32 data) override;
+	void WriteCR5(SIO::channel *chan, uint32 data) override;
+	void SetTXC(SIO::channel *chan);
+
+	static const char * const wrnames[32];
+	static const char * const rrnames[32];
 };
 
 extern std::unique_ptr<SCCDevice> gSCC;