--- nono/vm/dmac.h	2026/04/29 17:05:38	1.1.1.16
+++ nono/vm/dmac.h	2026/04/29 17:05:51	1.1.1.17
@@ -12,7 +12,6 @@
 
 #include "device.h"
 #include "bus.h"
-#include "event.h"
 #include "fixedqueue.h"
 #include <array>
 
@@ -314,8 +313,8 @@ class DMACDevice : public IODevice
 	DMACChan *SelectChannel();
 
 	// 転送イベントコールバック
-	void StartCallback(Event& ev);
-	void TransferCallback(Event& ev);
+	void StartCallback(Event *);
+	void TransferCallback(Event *);
 
 	// ログ出力
 	void TransferLog(DMACChan *, uint op, busaddr addr, busdata r, uint64 data);
@@ -342,7 +341,7 @@ class DMACDevice : public IODevice
 	MainbusDevice *mainbus {};
 	Syncer *syncer {};
 
-	Event event { this };
+	Event *event {};
 
 	Monitor *monitor {};