--- nono/vm/adpcm.h	2026/04/29 17:05:14	1.1
+++ nono/vm/adpcm.h	2026/04/29 17:05:29	1.1.1.4
@@ -13,11 +13,14 @@
 #include "device.h"
 #include "event.h"
 
+class DMACDevice;
+class PPIDevice;
+
 class ADPCMDevice : public IODevice
 {
 	using inherited = IODevice;
 
-	static const int baseaddr = 0xe92000;
+	static const uint32 baseaddr = 0xe92000;
 
 	static const uint8 STAT_PLAY	= 0x80;
 
@@ -27,8 +30,9 @@ class ADPCMDevice : public IODevice
 
  public:
 	ADPCMDevice();
-	virtual ~ADPCMDevice() override;
+	~ADPCMDevice() override;
 
+	bool Init() override;
 	void ResetHard(bool poweron) override;
 
 	// CT1 によるクロック切り替え。OPM から呼ばれる。
@@ -41,9 +45,10 @@ class ADPCMDevice : public IODevice
  protected:
 	// BusIO インタフェース
 	static const uint32 NPORT = 2;
-	uint64 Read(uint32 offset);
-	uint64 Write(uint32 offset, uint32 data);
-	uint64 Peek(uint32 offset);
+	busdata ReadPort(uint32 offset);
+	busdata WritePort(uint32 offset, uint32 data);
+	busdata PeekPort(uint32 offset);
+	bool PokePort(uint32 offset, uint32 data);
 
  private:
 	void StartPlay();
@@ -55,7 +60,12 @@ class ADPCMDevice : public IODevice
 	int clk {};
 	int div {};
 
+	DMACDevice *dmac {};
+	PPIDevice *ppi {};
+
 	Event event { this };
 };
 
-extern ADPCMDevice *gADPCM;
+static inline ADPCMDevice *GetADPCMDevice() {
+	return Object::GetObject<ADPCMDevice>(OBJ_ADPCM);
+}