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Article View: comp.os.msdos.programmer
Article #4356

Re: rebooting by a command, not by Ctrl-Alt-del or power off/on

#4356
From: MHR {who?}
Date: Mon, 21 Jan 1991 19:20
40 lines
2036 bytes
In <1991Jan18.234616.18063@ncsuvx.ncsu.edu>, bank@lea.ncsu.edu writes:
> In article <1991Jan10.013850.3506@cubmol.bio.columbia.edu> ping@cubmol.bio.columbia.edu (Shiping Zhang) writes:
> >I'm not sure if this group is the right one for my question. I want to
> >know how to reboot an IBM pc not by Ctrl-Alt-del, power off/on, or
> >pressing the reset button methods. In other words, is there a command
> >I can issue to reboot the machine, or is there way to write a command
> >in C to reboot the machine. Thanks for any information.
> >
> >-ping   ping@cubmol.bio.columbia.edu (128.59.128.3)
> 
> Dave the DM
> bank@lea.csc.ncsu.edu

Here is the assembly language code for both warm and cold boot
simulators.  I trust that translating into C wouldn't be too difficult
for your particular compiler....

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

cold boot:
	JMP	FFFF:0000

This was posted not so long ago to one of these comp.os.msdos.* news
groups (thank you, whoever originally posted it) and I have both
assembled into .COM files, and they work.  You can even construct them
using DEBUG, if you know how (remember to set the CX register before
writing).

Have a nice day :-) !

-- 
Mark A. Hull-Richter    UUCP:     ccicpg!mhr    Clever remark stolen from
ICL North America       InterNet: [coming soon]      another netter:
9801 Muirlands Blvd                             Go ahead, flame me. I have
Irvine, CA  92713       (714)458-7282x4539      a /dev/null on my machine.
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Message-ID: <12503@ccicpg.UUCP>
Path: arc1-ca.pugleaf.net!utzoo!censor!geac!torsqnt!hybrid!scifi!bywater!uunet!ccicpg!mhr
References: <1991Jan10.013850.3506@cubmol.bio.columbia.edu> <1991Jan18.234616.18063@ncsuvx.ncsu.edu>

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Path: arc1-ca.pugleaf.net!utzoo!censor!geac!torsqnt!hybrid!scifi!bywater!uunet!ccicpg!mhr
From: mhr@ccicpg.UUCP (MHR {who?})
Newsgroups: comp.os.msdos.programmer
Subject: Re: rebooting by a command, not by Ctrl-Alt-del or power off/on
Summary: Was already posted, but here it is again.
Message-ID: <12503@ccicpg.UUCP>
Date: 21 Jan 91 19:20:49 GMT
References: <1991Jan10.013850.3506@cubmol.bio.columbia.edu> <1991Jan18.234616.18063@ncsuvx.ncsu.edu>
Organization: ICL North America
Lines: 40