[Coco] WIP - RGB2VGA 800x600

[tim franklinlabs.com]

   Ahhhh... oversampling the samples. Got it. That makes sense.

     On October 28, 2015 at 9:37 AM CoCo Demus <retrocanada76 at gmail.com>
     wrote:
     You forgot about the "digitizing incoming video" part which is
     640x200 in
     64 colors.
     Also, since coco3 is tied to NTSC subcarrier frequency I must do the
     same
     if I want stable pixels. In my case 388/55*64 Mhz
     Look my article: https://sites.google.com/site/tandycocoloco/rgb2vga
     On Wed, Oct 28, 2015 at 7:08 AM, tim franklinlabs.com
     <tim at franklinlabs.com>
     wrote:
     > OK, now my curiosity is flaring. You can generate the 800x600
     (60Hz)
     > timing with a 40Mhz clock. Why is your clock so fast?
     >
     > Reference: [1]http://tinyvga.com/vga-timing/800x600@60Hz
     >
     > On October 28, 2015 at 9:03 AM Cocodemus <retrocanada76 at gmail.com>
     > wrote:
     > Also the board now is locked at 228mhz, in quartus 13.0 i always
     got
     > bad timing with jittering pixels. On 13.0 it run at 114mhz
     > Sent from my iPhone
     > > On Oct 28, 2015, at 1:33 AM, Mark McDougall
     > <msmcdoug at iinet.net.au> wrote:
     > >
     > >> On 28/10/2015 6:28 PM, CoCo Demus wrote:
     > >>
     > >> This is due to QuartusII 15.0 be able to generate a better and
     > optimized
     > >> code.
     > >
     > > Cite your source???
     > >
     > > Regards,
     > >
     > > --
     > > | Mark McDougall | "Electrical Engineers do it
     > > | <http://members.iinet.net.au/~msmcdoug> | with less
     resistance!"
     > >
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     > References
     >
     > 1. http://tinyvga.com/vga-timing/800x600@60Hz
     >
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