Re: Returning the 80286 to real mode

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Article #1826

#1826

From: Tom Sanders
Date: Wed, 30 Nov 1988 16:49

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A while ago I sent an article asking if this could be done.  Netters
will have seen the replies.

Most replies assumed a PC/AT hardware environment, which was my own fault
for not making myself clear.  Also, all I really wanted to do was reset
the processor.

In fact, my hardware is an Intel iSBC 286/12 board.
                                 ^^^^
                                   c Intel.

This supports a soft reset by writing byte 01 to port 00E0, as anyone
with the Hardware Reference Manual can look up themselves!  Still,
the replies were interesting.

Regards,
-- 
Tom Sanders  <sanders@idec.stc.co.uk> or <...mcvax!ukc!idec!sanders>

JANET: sanders%idec@uk.ac.ukc

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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!mcvax!ukc!stl!stc!idec!sanders
From: sanders@idec.stc.co.uk (Tom Sanders)
Newsgroups: comp.sys.intel
Subject: Re: Returning the 80286 to real mode
Message-ID: <1092@xenon.idec.stc.co.uk>
Date: 30 Nov 88 16:49:43 GMT
Organization: ICL Network Systems, Stevenage, Herts. UK
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