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Re: Supercard
- Subject: Re: Supercard
- From: "Michael J. Mahon" <mjmahon@aol.com>
- Date: Wed, 14 Jun 2006 21:13:45 -0700
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Linards Ticmanis wrote:
Jorge ChB wrote:
, windowed pixels
that span 4 bits among consecutive 7 bits "bytes" that happen to
alternate between main and aux memory banks
I'd just like to add that these don't exist as such. Bits
113-114-115-116 on a line are no more (or less) of a pixel than bits
114-115-116-117 or bits 115-116-117-118.
Although it is true that some emulators and even some RGB cards
*treat* specific 4-pixel groups as if they are uniquely packaged.
Of course, an NTSC processor doesn't care about boundaries, only about
streams of bits--which I why I proposed a shift register "window" that
is more than 4-bits wide, like 8 or 12, even, for greater fidelity to
analog color processing.
-michael
Parallel computing for 8-bit Apple II's!
Home page: http://members.aol.com/MJMahon/
"The wastebasket is our most important design
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