--- nono/vm/nereid.cpp	2026/04/29 17:05:43	1.1.1.5
+++ nono/vm/nereid.cpp	2026/04/29 17:06:01	1.1.1.6
@@ -64,7 +64,7 @@ NereidDevice::NereidDevice()
 	: inherited(OBJ_NEREID)
 {
 	monitor = gMonitorManager->Regist(ID_MONITOR_NEREID, this);
-	monitor->func = ToMonitorCallback(&NereidDevice::MonitorUpdate);
+	monitor->SetCallback(&NereidDevice::MonitorScreen);
 	monitor->SetSize(41, 9);
 }
 
@@ -80,7 +80,7 @@ NereidDevice::Create()
 	// ボードの有無は nereid%u-enable だけで決まる。
 	for (int i = 0; i < 2; i++) {
 		std::string name = string_format("nereid%u-enable", i);
-		bool enable = gConfig->Find(name).AsInt();
+		bool enable = gConfig->Find(name).AsBool();
 
 		if (enable) {
 			try {
@@ -171,7 +171,7 @@ NereidDevice::Peek1(uint32 addr)
 }
 
 void
-NereidDevice::MonitorUpdate(Monitor *, TextScreen& screen)
+NereidDevice::MonitorScreen(Monitor *, TextScreen& screen)
 {
 	int y;
 
@@ -283,8 +283,7 @@ NereidBoardDevice::Create()
 	std::string netname = string_format("nereid%u-net", id);
 	std::string ramname = string_format("nereid%u-ram-size", id);
 
-	const ConfigItem inet = gConfig->Find(netname);
-	bool net_enable = inet.AsInt();
+	bool net_enable = gConfig->Find(netname).AsBool();
 
 	const ConfigItem iramsize = gConfig->Find(ramname);
 	ramsize_MB = iramsize.AsInt();