Message-Id: <200007222228.BAA06872@mailgw1.netvision.net.il>
Date: Sun, 23 Jul 2000 01:28:35 +0200
To: Erik Berglund <erik2 DOT berglund AT telia DOT com>
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From: "Eli Zaretskii" <eliz AT is DOT elta DOT co DOT il>
CC: djgpp AT delorie DOT com
In-reply-to: <jble5.251$tab.186674688@newsb.telia.net> (message from Erik
	Berglund on Sat, 22 Jul 2000 17:52:15 GMT)
Subject: Re: GPF with system() and clock int.
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> From: Erik Berglund <erik2 DOT berglund AT telia DOT com>
> Newsgroups: comp.os.msdos.djgpp
> Date: Sat, 22 Jul 2000 17:52:15 GMT
> 
> I usually get an error after 4 or 5 runs, maybe more sometimes

I definitely tried more that 4-5 times, maybe 10 or so.

> (with the clock tick frequency at 16x 18.2 Hz)

This clock speedup is actually not very nice on your part: what if
some of the drivers you load catch the timer tick, and cannot keep up
with the 16-fold rate increase?

What CPU is that, btw?

> Anyways, my 16-bit Turbo
> Pascal TSR does the same job, and it seems to work well
> together with gcc.

There's overhead associated with hardware interrupts in PM, as you
well know.