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1992
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USERJN92.MSA
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INVERT_INVERT.DOC
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1987-04-21
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SCREEN INVERTER ACCESSORY
=========================
This is a little accessory for flipping the screen colours to black
background and white text, resulting in less strain on your poor bloodshot
mince pies! and a lot more economical with available ram than Atari's
control panel. Install the accessory in the normal manner and then click on
from the desk menu, the screen colours will be flipped, click again and the
screen will be restored to the original palette settings.
The program will work in all three st screen resolutions and users of
medium res green screen monitors ( like yours truly ) will find it most
useful. Unfortunately, it will not work properly on a ste due to the
expanded palette, sorry about this but as I am a victim of the recession, I
am unable to upgrade to a mega ste4!, I have however, included the source
code for you to have a fiddle with, it should'nt take much fiddling to
alter the code to the ste's palette settings.
Thanks are in order to Roger Pearson and the guys at zzSoft, without
the book " introducing ATARI ST machine code" I'd still be writing progs in
basic!. The program is public domain, please distribute.
SCREEN COLOURS
==============
LOW RES black background
======= white text
5 shades of grey
MED RES black background
======= white text
2 shades of grey
HIGH RES black background
======== white text
Kevin Williams 1992
Birmingham.