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Article View: comp.sys.ibm.pc.programmer
Article #203

Re: Where is the screen memory in a CGA 8088?

#203
From: Stephen M. Dunn
Date: Tue, 27 Mar 1990 01:17
14 lines
1435 bytes
In article <3341@psivax.UUCP> torkil@psivax.UUCP (Torkil Hammer) writes:
$In article <25FA99BD.29545@maccs.dcss.mcmaster.ca> cs4g6ag@maccs.dcss.mcmaster.ca (Stephen M. Dunn) writes:
$#   Regardless of processor type, CGA memory starts at b800.  Note that
$Watch out.  I think it is b8000 or something like that, not b800.

   In absolute terms, yes.  But remember that memory on the 8086/8088 is
segmented, and no part of an address can be more than 16 bits.  CGA memory
starts at segment B800, offset 0000 (or other equivalent representation,
such as segment B000, offset 8000).
-- 
               More half-baked ideas from the oven of:
****************************************************************************
Stephen M. Dunn                               cs4g6ag@maccs.dcss.mcmaster.ca
     <std_disclaimer.h> = "\nI'm only an undergraduate ... for now!\n";
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!mailrus!uunet!jtsv16!geac!maccs!cs4g6ag
References: <517@ohs.UUCP> <25FA99BD.29545@maccs.dcss.mcmaster.ca> <3341@psivax.UUCP>

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!mailrus!uunet!jtsv16!geac!maccs!cs4g6ag
From: cs4g6ag@maccs.dcss.mcmaster.ca (Stephen M. Dunn)
Newsgroups: comp.sys.ibm.pc.programmer
Subject: Re: Where is the screen memory in a CGA 8088?
Message-ID: <260EBF0E.18666@maccs.dcss.mcmaster.ca>
Date: 27 Mar 90 01:17:02 GMT
References: <517@ohs.UUCP> <25FA99BD.29545@maccs.dcss.mcmaster.ca> <3341@psivax.UUCP>
Reply-To: cs4g6ag@maccs.dcss.mcmaster.ca (Stephen M. Dunn)
Distribution: usa
Organization: McMaster University, Hamilton, Ontario
Lines: 14