--- nono/vm/opm.h	2026/04/29 17:05:14	1.1.1.5
+++ nono/vm/opm.h	2026/04/29 17:05:25	1.1.1.7
@@ -13,6 +13,9 @@
 #include "device.h"
 #include "event.h"
 
+class ADPCMDevice;
+class FDCDevice;
+
 class OPMDevice : public IODevice
 {
 	using inherited = IODevice;
@@ -22,16 +25,17 @@ class OPMDevice : public IODevice
 
  public:
 	OPMDevice();
-	virtual ~OPMDevice() override;
+	~OPMDevice() override;
 
+	bool Init() override;
 	void ResetHard(bool poweron) override;
 
  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 Read(uint32 offset);
+	busdata Write(uint32 offset, uint32 data);
+	busdata Peek(uint32 offset);
 
  private:
 	bool IsBusy() const;
@@ -41,6 +45,7 @@ class OPMDevice : public IODevice
 	uint64 busy_origin;		// BUSY の起点時刻
 	uint64 busy_start;		// BUSY のアサート開始時刻
 	uint64 busy_end;		// BUSY のアサート終了時刻
-};
 
-extern OPMDevice *gOPM;
+	ADPCMDevice *adpcm {};
+	FDCDevice *fdc {};
+};