Path: utzoo!attcan!uunet!snorkelwacker!tut.cis.ohio-state.edu!ucsd!nosc!crash!galileo
From: galileo@crash.cts.com (Steve Klug)
Newsgroups: comp.sys.atari.st.tech
Subject: Interrupt question
Message-ID: <4501@crash.cts.com>
Date: 19 Sep 90 06:22:05 GMT
Organization: Crash TimeSharing, El Cajon, CA
Lines: 14


	I am trying to write a program which automatically does something
upon getting a carrier on the modem.  I'd like to write an interrupt routine,
preferably in GCC to handle this.  What I need to know is how to enable the
carrier detect interrupt.  I assumed (a horrible thing to do) that you 
simply had to place the proper address in the interrupt vector (0x104 ???)
while in supervisor mode and that it would fly.  Needless to say, it didn't
work.
Summary:	I need some general guidelines on how to work with Atari ST
interrupts from C, or from assembly if I have to.  More specifically, I need
to know how to use the carrier detect interrupt if there is anything special
about that particular interrupt.

			galileo@crash.uucp