1.1 --- a/ula.py Fri Jun 17 20:49:30 2016 +0200
1.2 +++ b/ula.py Sat Jun 18 00:03:20 2016 +0200
1.3 @@ -3,7 +3,7 @@
1.4 """
1.5 Acorn Electron ULA simulation.
1.6
1.7 -Copyright (C) 2011, 2012, 2013, 2014 Paul Boddie <paul@boddie.org.uk>
1.8 +Copyright (C) 2011, 2012, 2013, 2014, 2016 Paul Boddie <paul@boddie.org.uk>
1.9
1.10 This program is free software; you can redistribute it and/or modify it under
1.11 the terms of the GNU General Public License as published by the Free Software
1.12 @@ -26,12 +26,12 @@
1.13 MAX_WIDTH = 640 # the width of the screen in pixels
1.14
1.15 MAX_CSYNC = 2 # the scanline during which vsync ends
1.16 -MIN_PIXELLINE = 38 # the first scanline involving pixel generation
1.17 +MIN_PIXELLINE = 28 # the first scanline involving pixel generation
1.18 MAX_SCANLINE = 312 # the number of scanlines in each frame
1.19
1.20 MAX_PIXELLINE = MIN_PIXELLINE + MAX_HEIGHT
1.21
1.22 -MAX_HSYNC = 75 # the number of cycles in each hsync period
1.23 +MAX_HSYNC = 64 # the number of cycles in each hsync period
1.24 MIN_PIXELPOS = 256 # the first cycle involving pixel generation
1.25 MAX_SCANPOS = 1024 # the number of cycles in each scanline
1.26