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From: CBFalconer <cbfalconer AT yahoo DOT com>
Organization: Ched Research
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Newsgroups: comp.os.msdos.djgpp
Subject: Re: how to make a Timer
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Date: Tue, 11 Feb 2003 19:44:49 GMT
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To: djgpp AT delorie DOT com
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Ben Peddell wrote:
> 
> > Please do not toppost.  RDTSC will cause a bad opcode trap on a
> > 486, or a 386, both of which are suitable processors for the DJGPP
> > system.  Bad idea.
> 
> My idea is that the uclock() checks whether rdtsc is available when it is
> first called. And, if it's available the use it. If it's not, don't.

If suitably guarded my objections go away.  There are ways of
checking CPU type that do not provoke crashes, but I don't have my
finger on them.

-- 
Chuck F (cbfalconer AT yahoo DOT com) (cbfalconer AT worldnet DOT att DOT net)
   Available for consulting/temporary embedded and systems.
   <http://cbfalconer.home.att.net>  USE worldnet address!