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From: ballou@brahms.Berkeley.EDU.UUCP
Newsgroups: comp.sys.ibm.pc
Subject: Re: Code to perform warm reboot.
Message-ID: <1019@cartan.Berkeley.EDU>
Date: Sat, 21-Feb-87 04:56:42 EST
Article-I.D.: cartan.1019
Posted: Sat Feb 21 04:56:42 1987
Date-Received: Sat, 21-Feb-87 20:46:13 EST
References: <3258@j.cc.purdue.edu> <415@omepd> <10075@cgl.ucsf.edu.ucsfcgl.UUCP>
Sender: news@cartan.Berkeley.EDU
Reply-To: ballou@brahms.Berkeley.EDU (Kenneth R. Ballou)
Distribution: world
Organization: Math Dept. UC Berkeley
Lines: 18
Keywords: cold boot, warm boot, IBM PC

In article <10075@cgl.ucsf.edu.ucsfcgl.UUCP> kneller@socrates.ucsf.edu.UUCP 
writes:
>Isn't it true that you can control whether the memory check is done or
>not by placing a particular value in a special memory location?  This
>has been covered previously, but I don't recall the details, so if someone
>would care to comment ...

	The (true Blue) BIOS checks for the value hex 1234 (cute, no?) in
memory location 0040:0072.  If the magic value is found, then the BIOS
takes a warm boot.



--------
Kenneth R. Ballou			ARPA:  ballou@brahms.berkeley.edu
Department of Mathematics		UUCP:  ...!ucbvax!brahms!ballou
University of California
Berkeley, California  94720