From: jeffkhc AT netvigator DOT com (jeffchan)
Newsgroups: comp.os.msdos.programmer,comp.os.msdos,comp.os.msdos.djgpp,comp.os.msdos.misc
Subject: Re: Control timing
Date: 30 Oct 2001 17:11:57 -0800
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To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

Hi,

That's mean i must install DOS on my PC. Can i use windows startup
disk booting up, to make an environment as dos? Is that still same as
dos box in win9x?

And if the new_timer(void) routine is too much coding, it can't finish
the job when the next interrupt came expected. Do i need to set some
interrupt masking flags?

How do i check the timing spent of this interrupt service routine?

Jeff


> > > 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.