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From: david@csource.oz.au (david nugent)
Newsgroups: comp.os.msdos.programmer
Subject: Re: Rebooting (SUMMARY)
Message-ID: <766@csource.oz.au>
Date: 6 Dec 90 11:54:06 GMT
References: <1990Nov30.154658.16398@wpi.WPI.EDU>
Organization: Unique Computing Pty Ltd, Melb, Aust.
Lines: 25

In <1990Nov30.154658.16398@wpi.WPI.EDU> jhall@wpi.WPI.EDU (John Clinton Hall) writes:

> In summary, to perform a system warm boot on the IBM, put the word 1234h in
> location 0040h:0072h and JMP to location 0FFFFh:0000h.  For example, the
> following Debug code performs a warm boot:

> 	MOV	AX,0040
> 	MOV	DS,AX
> 	MOV	AX,1234
> 	MOV	[0072],AX
> 	JMP	FFFF:0000

> To cold boot the computer, just JMP 0FFFF:0000h.


... which doesn't work reliably - if at all - on a 386 running any sort
of memory management.  It also won't work reliably under DESQview, and will
definitely hang both PC-MOS/386 and Windows 3.x.

I'm glad to say, it does work just fine under VP/ix though. :-)

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