From: "Alexander Russell" <alexander DOT russell AT telus DOT com>
Newsgroups: comp.os.msdos.programmer,comp.os.msdos,comp.os.msdos.djgpp,comp.os.msdos.misc
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Subject: Re: Control timing
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Date: Sun, 28 Oct 2001 17:34:25 GMT
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To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp
Reply-To: djgpp AT delorie DOT com

"R. Rajesh Jeba Anbiah" <99mca30 AT mailandnews DOT com> wrote in message
news:8ea1626e DOT 0110280229 DOT 68dc811b AT posting DOT google DOT com...
> "Alexander Russell" <alexander DOT russell AT telus DOT com> wrote in message
news:<eRoC7.38433$%K4 DOT 6914940 AT news1 DOT telusplanet DOT net>...
> > "jeffchan" <jeffkhc AT netvigator DOT com> wrote in message
> > news:bf50ce95 DOT 0110260054 DOT 1153f72a AT posting DOT google DOT com...
> > > Thanks your kindly information.
> > >
> > > I use this code and having modification to verify the performance when
> > > i make it faster.
> > >
> > > My testing is checking the reading of x after certain time.
> > > For 1kHz, that's okay. For 8kHz, the result is the same as 1kHz.
> >
> > AJR - I don't see an obvious problem. Are you running under DOS? If
running
> > under a dos box in win9x the timing will not be exactly what you expect.
>
>       Let me know the reason.
>
Windows 9x grabs all the interrupts, and lets dos programms 'use' them at
random intervals.

> --
>   Peace - The choice of the new generation.