Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!mcnc!decwrl!uunet!proto!joe
From: joe@proto.com (Joe Huffman)
Newsgroups: comp.graphics
Subject: Re: How to display more than 16 colors in EGA ??
Message-ID: <1991Apr30.160439.15313@proto.com>
Date: 30 Apr 91 16:04:39 GMT
References: <12675@uhccux.uhcc.Hawaii.Edu> <1991Apr28.180038.10097@proto.com> <12731@uhccux.uhcc.Hawaii.Edu>
Distribution: usa
Organization: Prototronics @ Sandpoint, Idaho
Lines: 24

sharik@wiliki.eng.hawaii.edu (Harikrishnan Sundararaghavan) writes:

>Say it is a VGA emulating EGA ( or VGA itself ) Is it possible to show more
>than 16 colors in the hi-resolution modes.

Some boards have modes of operation that allow this quite easily.  Others
do not (assuming hi-resolution means > 320 x 200).  On the ones that do not
it can probably still be done 'the hard way'.  But I feel that it will 
probably result in unsatisfactory results.  Here is a program that will 
display 64 simulataneous colors in mode 3 (80 x 25 text mode0) I believe the 
same technique can be used in most of the graphics modes but note the jitter 
on the first line of every horizontal band when the palette is changed.  
Also note that one whole line is black between bands...

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joe@proto.com