Date: Tue, 17 Aug 1999 22:01:41 -0500 (CDT) From: Ben Parnell X-Sender: zaik AT tortugas DOT idir DOT net To: djgpp AT delorie DOT com Subject: Re: Timer interrupt In-Reply-To: <7pcdkd$eos$1@news04.btx.dtag.de> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Reply-To: djgpp AT delorie DOT com X-Mailing-List: djgpp AT delorie DOT com X-Unsubscribes-To: listserv AT delorie DOT com Precedence: bulk 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 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. >