--- nono/vm/x68kio.h	2026/04/29 17:05:29	1.1.1.4
+++ nono/vm/x68kio.h	2026/04/29 17:06:01	1.1.1.6
@@ -43,8 +43,8 @@ class X68kIODevice : public MainbusBaseD
 	inline IODevice *Decoder(bool super, uint32 addr) const;
 	inline void CheckCI(busaddr addr);
 
-	DECLARE_MONITOR_CALLBACK(MonitorUpdate);
-	DECLARE_MONITOR_CALLBACK(MonitorUpdateAreaset);
+	DECLARE_MONITOR_SCREEN(MonitorScreen);
+	DECLARE_MONITOR_SCREEN(MonitorScreenAreaset);
 
 	std::unique_ptr<IODevice> pADPCM {};
 	std::unique_ptr<IODevice> pAreaSet {};
@@ -84,10 +84,10 @@ class X68kIODevice : public MainbusBaseD
 
 	bool cut_fc2 {};					// FC2 ピンカットなら true
 
-	Monitor monitor { this };
-	Monitor monitor_area { this };
+	Monitor *map_monitor {};
+	Monitor *area_monitor {};
 };
 
-static inline X68kIODevice *GetX68kIODevice() {
+inline X68kIODevice *GetX68kIODevice() {
 	return Object::GetObject<X68kIODevice>(OBJ_X68KIO);
 }