From: "Damian Yerrick" <web DOT poison AT pineight DOT 8m DOT com>
Newsgroups: comp.os.msdos.djgpp
References: <Pine DOT SUN DOT 3 DOT 91 DOT 991021135350 DOT 2684D-100000 AT is>
Subject: Re: allegro gone missing?
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NNTP-Posting-Date: Thu, 21 Oct 1999 21:46:58 GMT
Distribution: world
Date: Thu, 21 Oct 1999 21:46:58 GMT
To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com


Eli Zaretskii <eliz AT is DOT elta DOT co DOT il> wrote in message
news:Pine DOT SUN DOT 3 DOT 91 DOT 991021135350 DOT 2684D-100000 AT is...
>
> On Wed, 20 Oct 1999, Damian Yerrick wrote:
>
> > > On Wed, 20 Oct 1999, Damian Yerrick wrote:
> > >
> > > > Oh, BTW, Eli meant the mode switches between real and
> > > > protected mode that happen hundreds or thousands of
> > > > times a second, several times each interrupt.
> > >
> > > Which interrupts fire with this frequency?
> > >
> > > I was talking about the timer and the keyboard, which
> > > are nowhere near these numbers.
> >
> > Keyboard maybe not, but the timer fires exactly 200 times
> > a second when DOS Allegro is running under Windows.
>
> Even that high rate is far from ``hundreds or thousands''.

Not to mention the software INT 21h interrupts that
I/O-intensive apps call.