Xref: utzoo comp.sys.ibm.pc:26194 comp.sources.wanted:6718
Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ames!lll-winken!uunet!steinmetz!davidsen
From: davidsen@steinmetz.ge.com (Wm. E. Davidsen)
Newsgroups: comp.sys.ibm.pc,comp.sources.wanted
Subject: Re: Is it possible to re-boot a PC from a program ?
Keywords: reboot.exe
Message-ID: <13373@steinmetz.ge.com>
Date: 16 Mar 89 21:29:00 GMT
References: <830@psueea.UUCP> <3785@stiatl.UUCP>
Reply-To: davidsen@crdos1.UUCP (bill davidsen)
Distribution: na
Organization: General Electric CRD, Schenectady, NY
Lines: 25

In order to cold boot your computer you must change the value of a byte
in memory and jump to FFFF:0000. I can't find the byte offhand, but it
determines warm or cold boot. The program posted in response to your
inquery doesn't seem to diddle the flag byte, and may just give a warm
boot. You can get that with one instruction:
	JMPF	FFFF:0000

I freely admit that I might have missed the byte diddling, but I don't
think so. There was a program called reboot which took an argument W or
C and performed the correct boot.

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	bill davidsen		(wedu@crd.GE.COM)
  {uunet | philabs}!steinmetz!crdos1!davidsen
"Stupidity, like virtue, is its own reward" -me