From: Schuster <Schuster AT eev DOT e-technik DOT uni-erlangen DOT de>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: Interrupts (Hardware)
Date: Tue, 08 Apr 1997 08:04:07 -0700
Organization: Lehrstuhl fuer Elektrische Energieversorgung
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Peter Berdeklis wrote:
> If you have a high interrupt frequency the time for the protected mode
> switch may be too costly.  In that case you need to install a second,
> real mode handler to deal with the interrupt, when the machine is in real
> mode, without a mode switch. 

I'm reading 12 input-values with the ISA Bus via Hadware interrupts at a
frequency 
of ~12khz and a simple PM Handler, also I do some graphics (with
Allegro) on 
the screen- works fine with a P90...

**********************************************
Michael Schuster
E-mail: Schuster AT eev DOT e-technik DOT uni-erlangen DOT de
Lehrstuhl fuer Elektrische Energieversorgung
http://www.eev.e-technik.uni-erlangen.de/