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From: miskinis@aisg.enet.dec.com (John Miskinis)
Newsgroups: comp.sys.atari.st.tech
Subject: MFPINT question:  How does one obtain the CURRENT interupt handler?
Message-ID: <3947@ryn.mro4.dec.com>
Date: 12 Feb 91 16:45:23 GMT
Sender: guest@ryn.mro4.dec.com
Organization: Digital Equipment Corporation
Lines: 31


Hi Guys and Gals!

	WELL, I'm the guy who posted the problems I've had in performing
MIDI realtime input that;s 100.0000% accurate...

	From the replies I've received, it has become apparent that the
entire level 6 interrupt handler must be re-written in order to accomplish
accurate realtime MIDI recording.

	I've build a prototype shell that allows *MY* code to execute
when a level 6 interrupt is encountered.  I'm using the XBIOS function
MFPINT to replace the standard interrupt handler.

	BUT(!) How can I find out what the original vector is?  It
seems that MFPINT returns NOTHING!

	Boy I'm glad I didn't quit DIGITAL to persue full-time MIDI
software development for the Atari platform...  

	Don't be fooled by claims that XBIOS and BIOS handles MIDI for
you.  It does, but not under heavy (professional) scenarios.

_John_

P.S.	I've been leary of becoming a registered Atari developer, since
	I've invested ~$10,000 in equipment to persue music software
	development.  Paying a fee to the computer manufacturer in order
	circumvent a problem (IN MY OPINION) that is inherent in the system
	software, supposedly on "this computer is made for music" to
	me seems quite unrealistic.