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From: Ted Dennison<dennison@telepath.com>
References: <17cd177c.0110120321.3077bccf@posting.google.com>
 <oyCx7.10592$Lz2.3580572774@newssvr30.news.prodigy.com>
 <tkDx7.26129$ev2.34679@www.newsranger.com>
 <WoDx7.10597$sj3.3583583254@newssvr30.news.prodigy.com>
Subject: Re: CPU time for Win32 & GNAT
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Date: 2001-10-12T17:17:04+00:00
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In article <WoDx7.10597$sj3.3583583254@newssvr30.news.prodigy.com>, Pat Rogers
says...
>
>"Ted Dennison" <dennison@telepath.com> wrote in message
>news:tkDx7.26129$ev2.34679@www.newsranger.com...
>> In article <oyCx7.10592$Lz2.3580572774@newssvr30.news.prodigy.com>, Pat
>Rogers
>> says...
>> >Better yet, why not use the Pentium ReadTimeStampCounter (RDTSC)

>> Is that instruction avalilable in ring 3?
>
>I can't say.  (I know I can trust you -- I just don't know!  :-)

Well, I've found lots of examples of its use mixed with user calls from various
OS's, so I guess so. Thinking about it, I can't come up with any reason why it
would be a security or stability problem, but then again the bad guys are always
way more creative than I am. 

---
T.E.D.    homepage   - http://www.telepath.com/dennison/Ted/TED.html

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