Re: Reboot from software

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#5383

From: Raymond Chen
Date: Thu, 13 Dec 1990 18:47

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In article <valley.661107789@gsbsun> valley@uchicago (Doug Dougherty) writes:
>This is becoming an FAQ.

It already *is* an FAQ.  Question number 2.3.

|2.3)  How do I reboot my computer via software?
|
|    Although some people will suggest using interrupt 19h, that method has
|    its problems since it doesn't reset lots of things (e.g., the
|    interrupt vectors).  A more effective method is to store the magic
|    number 0x1234 into 0x40:0x0072 and then perform a long jump to
|    0xffff:0x0000.  The magic number suppresses the memory test.

Sometimes I really wonder if people read the FAQ at all...

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Message-ID: <1990Dec13.184734.14472@agate.berkeley.edu>

Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!rutgers!apple!agate!purina.berkeley.edu!raymond

References: <34681@netnews.upenn.edu> <valley.661107789@gsbsun>

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!rutgers!apple!agate!purina.berkeley.edu!raymond
From: raymond@purina.berkeley.edu (Raymond Chen)
Newsgroups: comp.sys.ibm.pc.misc,comp.os.msdos.programmer
Subject: Re: Reboot from software
Message-ID: <1990Dec13.184734.14472@agate.berkeley.edu>
Date: 13 Dec 90 18:47:34 GMT
References: <34681@netnews.upenn.edu> <valley.661107789@gsbsun>
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