M src/gba/gba.h → src/gba/gba.h

@@ -32,11 +32,10 @@
 enum GBALogLevel {
 	GBA_LOG_STUB,
 	GBA_LOG_DEBUG,
+	GBA_LOG_GAME_ERROR,
 	GBA_LOG_INFO,
 	GBA_LOG_WARN,
 	GBA_LOG_ERROR,
-
-	GBA_LOG_GAME_ERROR
 };
 
 enum GBAKey {

M src/gba/renderers/video-software.c → src/gba/renderers/video-software.c

@@ -283,8 +283,12 @@ case REG_WINOUT:
 		softwareRenderer->winout.packed = value;
 		softwareRenderer->objwin.packed = value >> 8;
 		break;
+	case REG_MOSAIC:
+	case REG_GREENSWP:
+		GBALog(0, GBA_LOG_STUB, "Stub video register write: 0x%03X", address);
+		break;
 	default:
-		GBALog(0, GBA_LOG_STUB, "Stub video register write: %03x", address);
+		GBALog(0, GBA_LOG_GAME_ERROR, "Invalid video register: 0x%03X", address);
 	}
 	return value;
 }