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From: dillon@CORY.BERKELEY.EDU (Matt Dillon)
Newsgroups: comp.sys.amiga
Subject: Re: Rapid Stimulus Displaying on the Amiga Help.  Solution
Message-ID: <8704212148.AA11393@cory.Berkeley.EDU>
Date: Tue, 21-Apr-87 16:48:03 EST
Article-I.D.: cory.8704212148.AA11393
Posted: Tue Apr 21 16:48:03 1987
Date-Received: Wed, 22-Apr-87 05:46:11 EST
Sender: daemon@ucbvax.BERKELEY.EDU
Lines: 27

>>	plane:	2 1	color register
>>		0 0	0	always background color
>>		0 1	1	depends 
>>		1 0	2	depends
>>		1 1	3	doesn't matter
>                ^^^^^^^ ^^^^^
>colour 3 does matter, since it represents the intersection of the two stimulus, if you set this colour

	Oops, your right.  Color 3 should be set to whatever color you are
using for the current bitmap... i.e. equal to either 1 or 2 depending on which
bitmap your displaying:

		color reg
		0	background
		1	pen A
		2	background
		3	pen A

		color reg
		0	background
		1	background
		2	pen B
		3	pen B

		where A may or may not be the same as B... whatever you choose.

		-Matt