--- nono/vm/dmac.h	2026/04/29 17:05:14	1.1.1.11
+++ nono/vm/dmac.h	2026/04/29 17:05:29	1.1.1.14
@@ -11,11 +11,17 @@
 #pragma once
 
 #include "device.h"
+#include "bus.h"
+#include "event.h"
 #include "fixedqueue.h"
 #include "monitor.h"
-#include "event.h"
 #include <array>
 
+class ADPCMDevice;
+class FDCDevice;
+class InterruptDevice;
+class MainbusDevice;
+
 struct DMAC
 {
 	static const uint32 CSR = 0x00;	// .B
@@ -217,10 +223,10 @@ class DMACChan
 	uint32 bar;
 	uint8 niv;
 	uint8 eiv;
-	uint8 mfc;
 	uint8 cpr;
-	uint8 dfc;
-	uint8 bfc;
+	busaddr mfc;
+	busaddr dfc;
+	busaddr bfc;
 	void SetNIV(uint8);
 	void SetEIV(uint8);
 	void SetMFC(uint8);
@@ -229,13 +235,13 @@ class DMACChan
 	void SetBFC(uint8);
 
 	// 転送シーケンス
-	std::vector<int> seq {};
+	std::vector<uint> seq {};
 	int seq_index {};
 
 	// 転送リトライカウンタ。
 	// 実際には (SPC からの) DTACK を待つのだが、
 	// 待つのは大変なのでこちらでポーリングしている。
-	int retry {};
+	uint retry {};
 
 	// 転送中データ
 	FixedQueue<uint8, 2> data;
@@ -245,7 +251,7 @@ class DMACDevice : public IODevice
 {
 	using inherited = IODevice;
 
-	static const int baseaddr = 0xe84000;
+	static const uint32 baseaddr = 0xe84000;
 
 	// 転送シーケンス
 	enum {
@@ -258,33 +264,29 @@ class DMACDevice : public IODevice
 		WR_M16,
 		WR_D8,
 		WR_D16,
+		SEQ_MAX,
 	};
 
  public:
 	DMACDevice();
-	virtual ~DMACDevice() override;
+	~DMACDevice() override;
 
+	bool Init() override;
 	void ResetHard(bool poweron) override;
 
-	uint64 Read8(uint32 addr) override;
-	uint64 Read16(uint32 addr) override;
-	uint64 Write8(uint32 addr, uint32 data) override;
-	uint64 Write16(uint32 addr, uint32 data) override;
-	uint64 Peek8(uint32 addr) override;
+	busdata Read(busaddr addr) override;
+	busdata Write(busaddr addr, uint32 data) override;
+	busdata Peek1(uint32 addr) override;
 
 	// 外部デバイスが REQ 信号を操作する
-	void AssertREQ(int ch);
-	void NegateREQ(int ch);
+	void AssertREQ(uint ch);
+	void NegateREQ(uint ch);
 
 	// 割り込みアクノリッジ
-	int InterruptAcknowledge();
+	busdata InterruptAcknowledge();
 
- protected:
-	// BusIO インタフェース
-	static const uint NPORT = 256;
-	uint64 Read(uint32 offset);
-	uint64 Write(uint32 offset, uint32 data);
-	uint64 Peek(uint32 offset);
+	// ユーザ空間制御
+	void SetUdevice(uint32 start, uint32 end, bool accessible);
 
  private:
 	DECLARE_MONITOR_CALLBACK(MonitorUpdate);
@@ -292,6 +294,9 @@ class DMACDevice : public IODevice
 	void MonitorReg4(TextScreen&,
 		int x, int y, uint32 reg, const char * const *names);
 
+	busdata WriteByte(DMACChan *chan, uint32 n, uint32 data);
+	busdata WriteWord(DMACChan *chan, uint32 n, uint32 data);
+
 	// チャンネル操作
 	void WriteCSR(DMACChan *chan, uint32 data);
 	void WriteCCR(DMACChan *chan, uint32 data, uint8 up);
@@ -309,8 +314,11 @@ class DMACDevice : public IODevice
 	void StartCallback(Event& ev);
 	void TransferCallback(Event& ev);
 
+	// ログ出力
+	void TransferLog(DMACChan *, uint op, busaddr addr, busdata r, uint64 data);
+
 	// 転送中エラー
-	void TransferError(DMACChan *, int op, uint64);
+	void TransferError(DMACChan *, uint op, busdata r, uint32 data);
 
 	// エラー発生
 	void Error(DMACChan *chan, uint8 errcode);
@@ -322,11 +330,24 @@ class DMACDevice : public IODevice
 	std::array<DMACChan, 4> channel {};
 	uint8 gcr;
 
+	// ユーザ空間制御
+	std::array<bool, 2048> useraccess {};
+
+	ADPCMDevice *adpcm {};
+	FDCDevice *fdc {};
+	InterruptDevice *interrupt {};
+	MainbusDevice *mainbus {};
+
 	Event event { this };
 
 	Monitor monitor { this };
 
 	static const char * const errnames[];
+	static const char * const regname1[0x40];
+	static const char * const regname2[0x20];
+	static const char * const seqname[SEQ_MAX];
 };
 
-extern DMACDevice *gDMAC;
+static inline DMACDevice *GetDMACDevice() {
+	return Object::GetObject<DMACDevice>(OBJ_DMAC);
+}