Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!bloom-beacon!mit-eddie!ll-xn!ames!pasteur!ucbvax!CORY.BERKELEY.EDU!dillon
From: dillon@CORY.BERKELEY.EDU (Matt Dillon)
Newsgroups: comp.sys.amiga.tech
Subject: Re: Parallel port interrupt server (more info)
Message-ID: <8804300045.AA17523@cory.Berkeley.EDU>
Date: 30 Apr 88 00:45:55 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Lines: 33


	Ok, found my manuals.  Here is an overview (read the manual pages
for more info):

	(1) OpenResource() the "misc.resource" 
	(2) Call AllocMiscResource() for the MR_PARALLELPORT and 
	    MR_PARALLELBITS to ensure nobody else is using them.
	(3) OpenResource() the "ciaa.resource" to get access to the interrupt
	    bits.
	(4) AddICRVector() the FLAG interrupt to your interrupt server

		(stuff)

	(5) RemICRVector() the FLAG interrupt
	(6) FreeMiscResource() MR_PARALLELPORT and MR_PARALLELBITS



	AddICRVector()	offset -6  from cia?.resource base
	RemICRVector()  offset -12 from cia?.resource base
	AbleICR()	offset -18 from cia?.resource base
	SetICR()	offset -24 from cia?.resource base

	AllocMiscResource()	offset -6  from misc.resource base
	FreeMiscResource()	offset -12 from misc.resource base

	See <resources/misc.h>, AUTODOCS: misc.doc, cia.doc

	The interrupt is automatically enabled on AddICRVector() and disabled 
	on RemICRVector().  And, of course, AddICRVector() fails if the
	interrupt is already allocated.

					-Matt