--- nono/vm/sio.cpp	2026/04/29 17:05:28	1.1.1.13
+++ nono/vm/sio.cpp	2026/04/29 17:05:32	1.1.1.14
@@ -55,9 +55,9 @@ SIODevice::SIODevice()
 		rxevent[ch].SetName(string_format("SIO Ch%c RX", chan.name));
 	}
 
-	monitor.func = ToMonitorCallback(&SIODevice::MonitorUpdate);
-	monitor.SetSize(70, 24);
-	monitor.Regist(ID_MONITOR_SIO);
+	monitor = gMonitorManager->Regist(ID_MONITOR_SIO, this);
+	monitor->func = ToMonitorCallback(&SIODevice::MonitorUpdate);
+	monitor->SetSize(70, 24);
 }
 
 // デストラクタ