Article View: comp.os.msdos.programmer
Article #3338Re: Rebooting (SUMMARY)
From: david nugent
Date: Thu, 06 Dec 1990 11:54
Date: Thu, 06 Dec 1990 11:54
25 lines
1314 bytes
1314 bytes
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. :-)
--
Fidonet: 3:632/348 SIGnet: 28:4100/1 Imex: 90:833/387
Data: +61-3-885-7864 Voice: +61-3-826-6711
Internet/ACSnet: david@csource.oz.au Uucp: ..!uunet!munnari!csource!david
Technical Details
Message-ID:
<766@csource.oz.au>Path:
arc1-ca.pugleaf.net!utzoo!censor!geac!torsqnt!news-server.csri.toronto.edu!cs.utexas.edu!uunet!munnari.oz.au!csource!davidReferences:
<1990Nov30.154658.16398@wpi.WPI.EDU>Show Full Headers
Complete Article Headers
Path: arc1-ca.pugleaf.net!utzoo!censor!geac!torsqnt!news-server.csri.toronto.edu!cs.utexas.edu!uunet!munnari.oz.au!csource!david 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