Path: utzoo!mnetor!uunet!lll-winken!lll-lcc!pyramid!cbmvax!bryce
From: bryce (Bryce Nesbitt - Acting Ensign)
Newsgroups: comp.sys.amiga.tech
Subject: Re: Interrupt Server, Parallel port
Message-ID: <3719@cbmvax.UUCP>
Date: 4 May 88 05:43:12 GMT
References: <631@eos.UUCP>
Sender: bryce@cbmvax.UUCP
Reply-To: rutgers!cbmvax!bryce (Bryce Nesbitt - Acting Ensign)
Organization: Commodore Technology, West Chester, PA
Lines: 21

In article <631@eos.UUCP> phil@eos.UUCP (Phil Stone) writes:
|I have set up
|my UART to assert the "FLAG" interrupt on the 8520, but my question is,
|how do I check this bit in the interrupt register without clearing the
|whole register?

You don't.  At least not directly.

One solution would be to get MOS technology to change the 8520, and
then send out free updates to every Amiga owner.  A quick chat with the MOS
director of stratigic marketing, and midnight exchange of
Gold, Platinum, or other precious metal and you will be all set. :-)

Or perhaphs you want a slightly cheaper solution?  Try this:

The system already has to deal with multiple interrupts from this
chip.  The "ciaa.resource" and "ciab.resource" have mechanisms for
doling out the proper IRQs to the proper handlers.  Get out your
Captain Amiga secret documentation decoder ring, and start compilin'.
.

		-Bryce