--- nono/vm/fdc.h	2026/04/29 17:04:50	1.1.1.5
+++ nono/vm/fdc.h	2026/04/29 17:04:55	1.1.1.6
@@ -100,8 +100,7 @@ struct FDC {
 	static const int ST3_US_MASK	= 0x03;	// Unit Select
 };
 
-class FDCDevice
-	: public IODevice
+class FDCDevice : public IODevice
 {
 	using inherited = IODevice;
  private:
@@ -137,7 +136,7 @@ class FDCDevice
 
 	void Interrupt();
 
-	Event event {};
+	Event event { this };
 
 	// コマンドを名前に変換
 	static const char *cmd2name(uint32);