Path: utzoo!utgpu!watserv1!watmath!att!att!linac!pacific.mps.ohio-state.edu!zaphod.mps.ohio-state.edu!sol.ctr.columbia.edu!trantor.harris-atd.com!charybdis!sonny
From: sonny@charybdis.harris-atd.com (Bob Davis)
Newsgroups: comp.os.msdos.programmer
Subject: Re: WANTED: list of useful BIOS locations
Message-ID: <4709@trantor.harris-atd.com>
Date: 1 Nov 90 14:15:20 GMT
References: <90304.161727DLV101@psuvm.psu.edu>
Sender: news@trantor.harris-atd.com
Reply-To: sonny@trantor.harris-atd.com (Bob Davis)
Organization: Advanced Technology Dept., Harris ESS, Melbourne, FL
Lines: 32

In article <90304.161727DLV101@psuvm.psu.edu> DLV101@psuvm.psu.edu (Dwaine VanBibber) writes:
>I'm looking for all those neat memory locations and what they do. For
>example, here are a few:
>
>ffff:0 - jump here for warm/cold boot
>ffff:fffe - machine ID byte
>0040:00f0 - Keyboard type (0 older keyboard, 1 extended)
>????:???? - keyboard status word (numlock, scroll lock, etc.)
>????:???? - stores address of beginning of video memory.
>
>Does anyone know where I can find THE definitive list of the? A book or
>text file that someone has compiled will do fine. Thanks.
>--Dwaine

Hello, Dwaine,
  I recommend you fetch from Simtel [26.2.0.74] by anonymous ftp
(ways also exist to fetch via E-mail to a server):

	PD1:<MSDOS.INFO>1216REF2.ARC

This Simtel directory, PD1:<MSDOS.INFO>, is, in my opinion,
a veritable mother lode of DOS information. You might want
to scan across some of its other file descriptions also.
	Best,


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