--- nono/vm/scc.h	2026/04/29 17:04:28	1.1
+++ nono/vm/scc.h	2026/04/29 17:05:59	1.1.1.13
@@ -1,35 +1,99 @@
 //
 // nono
-// Copyright (C) 2017 isaki@NetBSD.org
+// Copyright (C) 2020 nono project
+// Licensed under nono-license.txt
+//
+
+//
+// SCC (Z8530)
 //
 
 #pragma once
 
-#include "device.h"
-#include "upd7201.h"
+#include "mpscc.h"
 
-class SCCDevice
-	: public uPD7201Device
+class Keyboard;
+
+class SCCDevice : public MPSCCDevice
 {
-	typedef uPD7201Device inherited;
- private:
-	static const int baseaddr = 0xe98000;
+	using inherited = MPSCCDevice;
 
  public:
 	SCCDevice();
-	virtual ~SCCDevice();
+	~SCCDevice() override;
+
+	bool Init() override;
+	void ResetHard(bool poweron) override;
 
-	virtual void ResetHard();
+	// 割り込みアクノリッジ
+	busdata InterruptAcknowledge();
 
-	virtual uint64 Read8(uint32 addr);
-	virtual uint64 Read16(uint32 addr);
-	virtual uint64 Write8(uint32 addr, uint32 data);
-	virtual uint64 Write16(uint32 addr, uint32 data);
-	virtual uint64 Peek8(uint32 addr);
+ protected:
+	// BusIO インタフェース
+	busdata ReadPort(uint32 offset);
+	busdata WritePort(uint32 offset, uint32 data);
+	busdata PeekPort(uint32 offset);
 
-	// XXX 親の同名メソッドと名前分けたほうがいいか
-	virtual uint8 ReadCtrl(struct SIO::channel *chan);
-	virtual void WriteCtrl(struct SIO::channel *chan, uint32 data);
+	void Tx(int ch, uint32 data) override;
+	uint GetHighestInt() const override;
 
-	virtual void Interrupt();
+ private:
+	// 指定のレジスタ名を返す
+	const char *CRName(const MPSCCChan&, uint n) const override;
+	const char *SRName(const MPSCCChan&, uint 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 MPSCCChan& chan, int n) const {
+		return CRName(chan, n);
+	}
+	const char *WRName(const MPSCCChan& chan) const {
+		return inherited::CRName(chan);
+	}
+	const char *RRName(const MPSCCChan& chan, int n) const {
+		return SRName(chan, n);
+	}
+	const char *RRName(const MPSCCChan& chan) const {
+		return inherited::SRName(chan);
+	}
+
+	void ResetChannel(MPSCCChan&);
+
+	uint8 ReadCtrl(MPSCCChan&);
+	void WriteCtrl(MPSCCChan&, uint32 data);
+	uint8 PeekCtrl(const MPSCCChan&) const;
+
+	uint8 GetWR1(const MPSCCChan&) const;
+	uint8 GetWR9() const;
+	uint8 GetRR0(const MPSCCChan&) const;
+	uint8 GetRR2B() const;
+	uint8 GetRR3A() const;
+
+	void WriteWR0(MPSCCChan&, uint32 data);
+	void WriteWR1(MPSCCChan&, uint32 data);
+	void WriteWR2(uint32 data);
+	void WriteWR5(MPSCCChan&, uint32 data);
+	void WriteWR9(uint32 data);
+	void WriteWR10(MPSCCChan&, uint32 data);
+	void WriteWR11(MPSCCChan&, uint32 data);
+	void WriteWR12(MPSCCChan&, uint32 data);
+	void WriteWR13(MPSCCChan&, uint32 data);
+	void WriteWR14(MPSCCChan&, uint32 data);
+	void WriteWR15(MPSCCChan&, uint32 data);
+
+	void SetXC(MPSCCChan&);
+
+	DECLARE_MONITOR_SCREEN(MonitorScreen);
+	void MonitorScreenCh(TextScreen&, int ch, int xbase, int ybase);
+
+	// PCLK (入力クロック) の時間表現 [tsec]
+	uint64 pclk_tsec {};
+
+	Keyboard *keyboard {};
+
+	static const char * const wrnames[32];
+	static const char * const rrnames[32];
 };
+
+inline SCCDevice *GetSCCDevice() {
+	return Object::GetObject<SCCDevice>(OBJ_MPSCC);
+}