Newsgroups: comp.robotics
Path: brunix!uunet!haven.umd.edu!darwin.sura.net!gatech!concert!unccsun.uncc.edu!ws51!besmith
From: besmith@uncc.edu (Brian E Smith)
Subject: Re: Embedded PC/XT Controller
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References: <1029381.2607.10684@kcbbs.gen.nz>
Date: Wed, 24 Mar 1993 15:40:21 GMT
Lines: 26

In article 10684@kcbbs.gen.nz, Steve_Baldwin@kcbbs.gen.nz (Steve Baldwin) writes:
>Randy,
>
>Try and get hold of the XT Technical Reference. It should also be dirt 
>cheap now. 
>There is a complete listing of the BIOS and it is quite well commented 
>but the type is small. That will show you how to get the BIOS to jumpinto 
>your code as if it was a BASIC ROM and/or what hardware adresses are 
>needed to get your code to run in place of the BIOS ROMs.
>
>Steve.
>

There is also some info on this in Peter Norton's "Programmer's Guide to the IBM PC."
It show what a sample header for one of those extension ROMs looks like.  I think the
example used is the PCjr BASIC cartridge, but the technique is the same for the XT.


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        kaboom."   -- the Martian
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   Brian Smith  (besmith@mosaic.uncc.edu)

