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- Path: sparky!uunet!spool.mu.edu!umn.edu!csus.edu!netcom.com!netcomsv!terapin!paulk
- From: paulk@terapin.com (Paul Kienitz)
- Newsgroups: comp.sys.amiga.programmer
- Subject: Re: Chunky Pixels vs. Bitplanes (was: Chunky Chip Set...)
- References: <C05EDw.M9I@unix.portal.com>
- Message-ID: <paulk.3182@terapin.com>
- Date: 31 Dec 92 20:35:00 PST
- Organization: BBS
- Lines: 14
-
- >>> No, the VRAMs contain a color register. The "1" expands to
- >>> whatever color was previously loaded. Again, this allows text
- >>> writing and polygon filling to be done 4 times faster than usual.
-
- > No, it is specific to chunky. There's -no way-to write several
- > bitplanes at the same time except by using seperate memory banks
- > for each bitplane.
-
- It is NOT specific to chunky, as best I can tell from your
- description... it's simply a hardware feature that allows a normally
- chunky display to temporarily act like a bitplane display using a
- small number of planes. The planar version doesn't have to write the
- same value to several planes, it simply has to turn the other planes
- off.
-