--- nono/vm/opm.h	2026/04/29 17:05:14	1.1.1.5
+++ nono/vm/opm.h	2026/04/29 17:05:17	1.1.1.6
@@ -13,6 +13,9 @@
 #include "device.h"
 #include "event.h"
 
+class ADPCMDevice;
+class FDCDevice;
+
 class OPMDevice : public IODevice
 {
 	using inherited = IODevice;
@@ -24,6 +27,7 @@ class OPMDevice : public IODevice
 	OPMDevice();
 	virtual ~OPMDevice() override;
 
+	bool Init() override;
 	void ResetHard(bool poweron) override;
 
  protected:
@@ -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 {};
+};