Message-ID: <3C058630.36DE7D7B@yahoo.com>
From: CBFalconer <cbfalconer AT yahoo DOT com>
Organization: Ched Research
X-Mailer: Mozilla 4.75 [en] (Win98; U)
X-Accept-Language: en
MIME-Version: 1.0
Newsgroups: comp.os.msdos.djgpp
Subject: Re: uclock() and struct rusage
References: <3C03503F DOT E9AE61D3 AT bigfoot DOT com> <3C03C095 DOT AEBDC2EC AT yahoo DOT com> <1438-Tue27Nov2001224303+0200-eliz AT is DOT elta DOT co DOT il> <3C04C3EE DOT A97F7057 AT yahoo DOT com> <9003-Wed28Nov2001195525+0200-eliz AT is DOT elta DOT co DOT il>
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
Lines: 38
Date: Thu, 29 Nov 2001 02:29:17 GMT
NNTP-Posting-Host: 12.90.169.124
X-Complaints-To: abuse AT worldnet DOT att DOT net
X-Trace: bgtnsc04-news.ops.worldnet.att.net 1007000957 12.90.169.124 (Thu, 29 Nov 2001 02:29:17 GMT)
NNTP-Posting-Date: Thu, 29 Nov 2001 02:29:17 GMT
To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp
Reply-To: djgpp AT delorie DOT com

Eli Zaretskii wrote:
> 
> > From: CBFalconer <cbfalconer AT yahoo DOT com>
> > Newsgroups: comp.os.msdos.djgpp
> > Date: Wed, 28 Nov 2001 16:41:45 GMT
> > >
> > > > I expect this is not even portable under W98.  I hope to try it
> > > > later using the identical compiler, etc., but running on this '486
> > > > system.  I expect it will crash with an 'illegal instruction'
> > > > failing.
> > >
> > > What possible cause(s) do you see for the illegal instruction
> > > failure?
> >
> > I left the quote to capture the source in my own sent file.  I
> > suspect that system is calling some sort of cpu cycle timer that
> > exists only in the Pentium.  Something like rdtsc??
> 
> No, uclock doesn't use rdtsc, it uses the system timer chip.  So no
> illegal instructions should result.
> 
> (The sources of the DJGPP library are freely available, so you really
> don't need to speculate.)

I bow to your superior knowledge of the system.  I did not go
after any library sources, and as I said I was speculating.  I
didn't think the raw timer was accessible under W9x, obviously I
was wrong.

That sounds sarcastic - it isn't meant to be so.

-- 
Chuck F (cbfalconer AT yahoo DOT com) (cbfalconer AT XXXXworldnet DOT att DOT net)
   Available for consulting/temporary embedded and systems.
   (Remove "XXXX" from reply address. yahoo works unmodified)
   mailto:uce AT ftc DOT gov  (for spambots to harvest)