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Groups > comp.programming > #1552

Re: 0x0F700000

From Daniel Pitts <newsgroup.nospam@virtualinfinity.net>
Newsgroups comp.programming
Subject Re: 0x0F700000
References <8156901.962.1336398021438.JavaMail.geo-discussion-forums@ynei5> <kZTpr.80027$YM2.56448@newsfe05.iad> <4fa83677$0$6911$e4fe514c@news.xs4all.nl>
Message-ID <0RWpr.2511$MY4.2218@newsfe14.iad> (permalink)
Date 2012-05-07 14:08 -0700

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On 5/7/12 1:54 PM, Dick Wesseling wrote:
> In article<kZTpr.80027$YM2.56448@newsfe05.iad>,
> 	Daniel Pitts<newsgroup.nospam@virtualinfinity.net>  writes:
>> On 5/7/12 6:40 AM, bob wrote:
>>> Is there something special about the value 0x0F700000 in programming?  I vaguely remember that programmers might set their uninitialized stuff to that, but I'm not sure.
>> A google search for 0x0F700000 doesn't turn up anything immediately
>> apparent.
>>
>> It almost looks like a specific x86 instruction, but that doesn't
>> exactly pan out either:
>>
>
> F700 is an 68000 instruction "unimp". An attempt to execute this
> data will give a trap on that CPU.
That seems a plausible reason, but that doesn't align with 0F 70 00 00, 
unless the OP has miscounted zeros.

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Thread

0x0F700000 bob <bob@coolfone.comze.com> - 2012-05-07 06:40 -0700
  Re: 0x0F700000 Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-05-07 10:52 -0700
    Re: 0x0F700000 free@securityaudit.val.newsbank.net (Dick Wesseling) - 2012-05-07 20:54 +0000
      Re: 0x0F700000 Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-05-07 14:08 -0700
        Re: 0x0F700000 Robert Wessel <robertwessel2@yahoo.com> - 2012-05-08 00:22 -0500
          Re: 0x0F700000 Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-05-08 11:22 -0700
            Re: 0x0F700000 Robert Wessel <robertwessel2@yahoo.com> - 2012-05-08 15:24 -0500
  Re: 0x0F700000 Willem <willem@toad.stack.nl> - 2012-05-07 18:05 +0000

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