Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!RYERSON.BITNET!ACPS5589
From: ACPS5589@RYERSON.BITNET (George Borges)
Newsgroups: comp.sys.atari.st
Subject: Mfpint()
Message-ID: <8902140121.AA03228@ucbvax.Berkeley.EDU>
Date: 13 Feb 89 18:53:35 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 28



----------------------------Original message----------------------------
     Thanks to those two folks who replied to me.  However, I *still*
cannot get Mfpint() to work properly.  Perhaps I am somewhat dense.
Here's what I'm trying to do:

....
Jenabint( 14 );    /* enable ring indicator interrupt on MFP chip */
Mfpint( 14, interrupt );  /* set vector to point to my function */

... print stuff on screen in endless loop....

interrupt()
{
     setrte();   /* in MWC 2.0 .. return from exception rather than rts */
     Cconws("RING!!!");
}
.....

And that's basically it.  I disable the interrupt after it occurs.
The interrupt routine *does* execute but my program bombs (usually 2 or 3
of them).

Can a knowledgeable soul help a fellow cretin in need?  A fragment of working
C code would be most appreciated.  Thanx

George Borges   <ACPS5589@RYERSON.BITNET>