From: Mat Hostetter <iclone!mjhostet AT cs DOT unm DOT edu>
Date: Thu, 3 Jun 93 12:09:19 -0600
To: djgpp AT sun DOT soe DOT clarkson DOT edu
Subject: Re: Want vbl interrupts

Thanks to everyone who pointed out that not all video cards support  
VBL interrupts.  I'll have to find some other solution.

Is there ANY way to have a C function called n times a second from an  
interrupt?  It is acceptable to miss a few here and there, as long as  
it is infrequent.   The gprof support in gcrt0.s refers to a "timer  
interrupt", which sounds interesting, but I have no docs on that.

I hate asking RTFM-type questions to mailing lists; I'm sure I could  
answer this question myself if I had good docs.  Can someone  
recommend a good book for someone who knows several assembly  
languages (incl. 80386) but little about DOS?  Are the docs that come  
with Turbo C good?

-Mat  (mjhostet AT mit DOT edu)