--- frontvm/hardware/screen.c	2018/04/24 17:57:15	1.1.1.1
+++ frontvm/hardware/screen.c	2018/04/24 17:57:43	1.1.1.2
@@ -3,35 +3,22 @@
 
   This file is distributed under the GNU Public License, version 2 or at your
   option any later version. Read the file gpl.txt for details.
-
-  This code converts a 1/2/4 plane ST format screen to either 8 or 16-bit PC
-  format. An awful lost of processing is needed to do this conversion - we
-  cannot simply change palettes on  interrupts as it is possible with DOS.
-  The main code processes the palette/resolution mask tables to find exactly
-  which lines need to updating and the conversion routines themselves only
-  update 16-pixel blocks which differ from the previous frame - this gives a
-  large performance increase.
-  Each conversion routine can convert any part of the source ST screen (which
-  includes the overscan border, usually set to colour zero) so they can be used
-  for both window and full-screen mode.
-  Note that in Hi-Resolution we have no overscan and just two colors so we can
-  optimise things further. Also when running in maximum speed we make sure we
-  only convert the screen every 50 times a second - inbetween frames are not
-  processed.
 */
 
 #include <SDL.h>
 
 #include "main.h"
 #include "configuration.h"
-#include "m68000.h"
+#include "../m68000.h"
 #include "memAlloc.h"
 #include "misc.h"
 #include "screen.h"
 #include "screenConvert.h"
-#include "video.h"
 #include "scalebit.h"
 
+unsigned long VideoBase;                        /* Base address in ST Ram for screen(read on each VBL) */
+unsigned char *VideoRaster;                      /* Pointer to Video raster, after VideoBase in PC address space. Use to copy data on HBL */
+
 int len_main_palette;
 unsigned short MainPalette[256];
 unsigned short CtrlPalette[16];