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Re: NTSC Emulation
Just in case:
http://code.google.com/p/openemulator/wiki/CompositeVideoEmulation
Marc.-
On Jan 26, 4:45 pm, "Michael J. Mahon" <mjma...@aol.com> wrote:
> vladitx wrote:
> > On Jan 25, 11:12 am, "Michael J. Mahon" <mjma...@aol.com> wrote:
>
> >>Because of the bandwidth limiting, several prceding pixel values
> >>participate in determining the current pixel color/brightness.
> >>I proposed that the current pixel concatenated with about 11 prior
> >>raw pixel values (all binary) would be a satisfactorily long index
> >>into a 4096-entry RGB table for the current pixel value.
>
> > The tables are four, one for each of the colour carrier phases
> > regarding the dot clock. This doesn't change the approach at all, and
> > I have shown that it works satisfactory for different vector (lookup)
> > lengths. It just makes the table space 4x, because of the 14.318 /
> > 3.58 relationship.
>
> Right, you are!
>
> -michael
>
> NadaNet 3.1 for Apple II parallel computing!
> Home page: http://home.comcast.net/~mjmahon/
>
> "The wastebasket is our most important design
> tool--and it's seriously underused."