--- BasiliskII/src/video.cpp	1999/10/19 19:28:12	1.2
+++ BasiliskII/src/video.cpp	2000/08/22 12:44:29	1.6
@@ -1,7 +1,7 @@
 /*
  *  video.cpp - Video/graphics emulation
  *
- *  Basilisk II (C) 1997-1999 Christian Bauer
+ *  Basilisk II (C) 1997-2000 Christian Bauer
  *  Portions (C) 1997-1999 Marc Hellwig
  *
  *  This program is free software; you can redistribute it and/or modify
@@ -244,14 +244,22 @@ int16 VideoDriverStatus(uint32 pb, uint3
 
 		case cscGetModeTiming:		// Get video timing for mode
 			D(bug(" GetModeTiming mode %08lx\n", ReadMacInt32(param + csTimingMode)));
-			WriteMacInt32(param + csTimingFormat, 'decl');
+			WriteMacInt32(param + csTimingFormat, FOURCC('d', 'e', 'c', 'l'));
 			WriteMacInt32(param + csTimingData, 220);		// 21" Multiscan
 			WriteMacInt32(param + csTimingFlags, 0x0f);		// Mode valid, safe, default and shown in Monitors panel
 			return noErr;
 
 		case cscGetModeBaseAddress:	// Get frame buffer base address
 			D(bug(" GetModeBaseAddress\n"));
-			WriteMacInt32(param + csBaseAddr, VidLocal.desc->mac_frame_base);
+			WriteMacInt32(param + csBaseAddr, VidLocal.desc->mac_frame_base);	// Base address of video RAM for the current DisplayModeID and relative bit depth
+			return noErr;
+
+		case cscGetMode:		// REQUIRED for MacsBug
+			D(bug(" GetMode\n"));
+			WriteMacInt16(param + csPageMode, 0x80);
+			WriteMacInt32(param + csPageData, 0x80);	// Unused
+			WriteMacInt16(param + csPagePage, 0);	// Current display page
+			WriteMacInt32(param + csPageBaseAddr, VidLocal.desc->mac_frame_base);
 			return noErr;
 
 		default: