Path: utzoo!utgpu!water!watmath!clyde!att!pacbell!lll-tis!helios.ee.lbl.gov!nosc!ucsd!ucbvax!OUACCVMB.BITNET!CS656
From: CS656@OUACCVMB.BITNET
Newsgroups: comp.sys.apple
Subject: INTERRUPT SERVICING
Message-ID: <8806220709.aa09026@SMOKE.BRL.ARPA>
Date: 22 Jun 88 10:51:02 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 12

I am trying to write an interrupt driven routine to get characters from the
modem. I read incoming data fine, the problem is with outgoing. For instance,
if I type A and then type T I get TA when I type the T. Is there a way of
resetting the status register so that my keyboard interrupts don't get
reinterpreted? I'm  just assuming that that is what's happening. Is there a way
to shut off keyboard interrupts while accepting the other port 2 interrupts or
do I just have to keep sorting them out?
I've noticed that the problem only occurs if there is no input from the modem
between the keystrokes. This should be sufficient to explain the problem but
I can't make it out.
Thanks in advance
Bob Church  CS656@OUACCVMB