Path: utzoo!attcan!uunet!zaphod.mps.ohio-state.edu!unix.cis.pitt.edu!cncst3
From: cncst3@unix.cis.pitt.edu (Chunqing N. Cheng)
Newsgroups: comp.lang.pascal
Subject: generic CGA card emulator
Message-ID: <54315@unix.cis.pitt.edu>
Date: 29 Oct 90 05:15:01 GMT
References: <10239@ubc-cs.UUCP> <54314@unix.cis.pitt.edu>
Reply-To: cncst3@unix.cis.pitt.edu (Chunqing N. Cheng)
Organization: Univ. of Pittsburgh, Comp & Info Services
Lines: 13

Quite a few Chinese own Chinese DOS which was written before and
ran on CGA card.  Now, most of computers upgrade to EGA/VGA.  
Those Chinese have trouble to run Chinese DOS on it.  I know
some EGA/VGA cards come with CGA emulator.  What I like to do is
to write a generic CGA emulator so that those people can benefit
from it.  Any example of this kind, or any hint how it is done?

A point to proper source is more appreciated. The programming
language is not a problem.  Pascal source is even greater.

Thanx in advance.

Chunqing Cheng