--- nono/vm/upd7201.cpp	2026/04/29 17:04:56	1.1.1.7
+++ nono/vm/upd7201.cpp	2026/04/29 17:04:59	1.1.1.8
@@ -515,7 +515,7 @@ uPD7201Device::MonitorUpdate(Monitor *,
 	} else {
 		screen.Print(9, y, "RTSB");
 	}
-	screen.Print(14, y, "----");
+	screen.Print(14, y, TA::Disable, "----");
 	screen.Print(19, y, TA::OnOff((cr2a & 0x20)), "Vect");
 	if ((cr2a & 0x18) == 0x10) {
 		screen.Print(24, y, "IM=V4-V2");
@@ -618,7 +618,7 @@ uPD7201Device::MonitorUpdateCh(TextScree
 
 	// CR1
 	static const char * const cr1_str[] = {
-		"WaEn", "----", "WaRx", "", "", "----", "TxIE", "ESEn"
+		"WaEn", "-", "WaRx", "", "", "-", "TxIE", "ESEn"
 	};
 	MonitorReg(screen, x + 9, y, cr1, cr1_str);
 	static const char * const rxint_str[] = {
@@ -633,7 +633,7 @@ uPD7201Device::MonitorUpdateCh(TextScree
 
 	// CR3
 	static const char * const cr3_str[] = {
-		"", "", "AuEn", "----", "----", "----", "----", "RXEn"
+		"", "", "AuEn", "-", "-", "-", "-", "RXEn"
 	};
 	MonitorReg(screen, x + 9, y, cr3, cr3_str);
 	screen.Print(x + 9, y, "RXbits=%d", 5 + ((cr3 >> 6) & 3));
@@ -674,7 +674,7 @@ uPD7201Device::MonitorUpdateCh(TextScree
 	MonitorReg(screen, x + 9, y, sr0, sr0_str);
 	// SR0 の bit1 (Interrupt Pending) は SR0A のみ。SR0B では 0。
 	if (ch == 1) {
-		screen.Print(39, y, "----");
+		screen.Print(39, y, TA::Disable, "----");
 	}
 	y++;
 
@@ -693,8 +693,8 @@ uPD7201Device::MonitorReg(TextScreen& sc
 	int x, int y, uint32 reg, const char * const *names)
 {
 	for (int i = 0; i < 8; i++) {
-		if (strcmp(names[i], "----") == 0) {
-			screen.Puts(x + i * 5, y, TA::Disable, names[i]);
+		if (names[i][0] == '-') {
+			screen.Puts(x + i * 5, y, TA::Disable, "----");
 		} else {
 			bool b = reg & (1 << (7 - i));
 			screen.Puts(x + i * 5, y, TA::OnOff(b), names[i]);