Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ames!haven!grebyn!ckp
From: ckp@grebyn.com (Checkpoint Technologies)
Newsgroups: comp.sys.amiga.tech
Subject: Re: Chip memory bandwidth, graphics modes
Message-ID: <14122@grebyn.com>
Date: 5 Jan 90 16:21:42 GMT
References: <14120@grebyn.com> <9213@cbmvax.commodore.com>
Reply-To: ckp@grebyn.UUCP (Checkpoint Technologies)
Organization: Grebyn Timesharing, Vienna, VA, USA
Lines: 14

In article <9213@cbmvax.commodore.com> daveh@cbmvax.commodore.com (Dave Haynie) writes:
>
>... Color registers have always run at the 320 pixel/15 kHz 
>dot rate.  When you're in a 640 pixel/15 kHz dot rate, the 32 lores color
>registers magically become 16 hires color registers; eg, they're multiplexed.

	Lemme get this straight: you say the color palette halves are
multiplexed, making an effective 16 color palette entries from the 32,
when the Amiga is in hi res?  I could understand this, but I would
expect to see certain side-effects.  Alternate high-res pixels would
address alternate halves of the color palette (but they don't). And 
sprite zero would appear to use color registers 1-3 (but it doesn't).
So I can't figure out what you really mean when you say they're
multiplexed.