Mail Archives: djgpp/1999/08/18/00:35:02
Actually, I don't think it would cause too much of a problem with DOS,
since I have some code that will increase the tick counter at
0x46c approximately 18.2 times second, even though the timer is programmed
to generate an interrupt other than 18.2 times a second.
On Tue, 17 Aug 1999, Vinzent Hoefler wrote:
> Ben Parnell <zaik AT kc DOT net> wrote:
>
> >I'm writing a program that reprograms channel 0 of the programmable timer
> >and hooks the timer interrupt, without passing control to the previous
> >handler. I was wondering if this would cause any problems with any
> >popular TSRs in use today.
>
> It wouldn't only cause problems with T&SRs, it would also cause more
> or less big trouble with DOS. The timer interrupt is used for all
> timing purposes, disk cache, floppy motor ... shall I continue
> counting?
>
>
> Vinzent.
>
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