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- Newsgroups: comp.sys.amiga.programmer
- Path: cs.vu.nl!irmen
- From: irmen@cs.vu.nl (Irmen de Jong)
- Subject: Re: Searching for BLTCON0 value..
- Nntp-Posting-Host: flits.cs.vu.nl
- References: <4hjopo$blp@news.uni-c.dk>
- Sender: news@cs.vu.nl
- Organization: Dept. of Computer Science, Vrije Universiteit Amsterdam
- Date: Wed, 6 Mar 1996 13:24:21 GMT
- X-Newsreader: TIN [version 1.2 PL2]
- Message-ID: <DnuL8M.Hpr.0.-s@cs.vu.nl>
-
- On 6 Mar 1996 10:18:32 GMT Michael Juhl (skytech@inet.uni-c.dk) (Michael Juhl) wrote:
-
- : A friend of mine and I are currently making a game is assembler
- : and we are ofcourse using the blitter, but we have this problem.
-
- : We know a couple of BLPCON0 values like $09f0, $0dca ect.
- : but we are searching for a value which can do this:
-
- : (We want to mix two bitplanes. A bitplane of a plane unto the
- : background)
-
-
- : Bit values:
-
- : PLANE BACKGROUND RESULT
- : 0 0 0
- : 0 1 1
- : 1 0 0
- : 1 1 0
-
-
- : Does such a value exists, if so please E-Mail me at
-
- : skytech@inet.uni-c.dk
-
- Check out the bit definitions in bplcon0. The blitter is able to do
- ALL logical combinations of 3 input planes. (AFAIK)
- (long time since I hit the hardware)
-
- Thus: yes, such a value exists. Can't currently look it up though.
-
- --
- / Irmen de Jong (email: irmen@cs.vu.nl WWW: http://www.cs.vu.nl/~irmen/) \
- \ ``Nothing lasts forever'' -- Species /
-