Path: utzoo!utgpu!water!watmath!clyde!bellcore!faline!thumper!ulysses!andante!princeton!udel!rochester!cornell!mailrus!ames!pasteur!ucbvax!hplabs!well!ewhac
From: ewhac@well.UUCP
Newsgroups: comp.sys.amiga
Subject: Re: Ideas for New Custom Chips (a SERIOUS one!)
Summary: It's been done before / Proof by counterexample
Message-ID: <6510@well.UUCP>
Date: 12 Jul 88 18:43:32 GMT
References: <3128@polya.Stanford.EDU> <14146@shemp.CS.UCLA.EDU> <613@myrias.UUCP>
Reply-To: ewhac@well.UUCP (Leo 'Bols Ewhac' Schwab)
Organization: Shhh!!  We're not supposed to be on the Net!
Lines: 28
Quote: "I don't like pink..."

In article <613@myrias.UUCP> cg@myrias.UUCP (Chris Gray) writes:
>Here's a suggestion for a very simple new mode in the custom chips.  [ ... ]
>        5-bits
>	 00000	    - use same colour as previous pixel
>	 xxxxx	    - select one of lower 32 colour table registers
>			(the 0th entry is not accessible, but is still used
>			 as the border colour)
>
>The same pattern holds for other depths - all bits zero means use the same
>colour as the horizontally previous pixel.
>
	This sounds a hell of a lot like the new weirdass whiz-bang graphics
mode on the Apple //-gee-whiz.  After reading about this feature and
declaring it Pretty Neat Even If Apple Did Think Of It, and thinking about
how it would be nice if the Amiga had it too, it struck me that we already
have it.

	It's called HAM mode.

	Granted, it's not as general as the approach outlined above, but you
still can do "area fills" in HAM using a similar technique by judiciously
(sp?) selecting pen numbers.

_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_
Leo L. Schwab -- The Guy in The Cape	INET: well!ewhac@ucbvax.Berkeley.EDU
 \_ -_		Recumbent Bikes:	UUCP: pacbell > !{well,unicom}!ewhac
O----^o	      The Only Way To Fly.	      hplabs / (pronounced "AE-wack")
"Hmm, you're right.  Air is made up of suspended meat loaf."  -- Josh Siegel