[Coco] RGB2VGA on DE0-Nano (improvements)

[Mark McDougall]

On 30/08/2014 8:33 PM, Gene Heskett wrote:

> any sampling is likely something that would need
> addressed not by grabbing the RGB output of a software GIME chip or a
> 6847, but by grabbing the data straight from memory as it is delivered to
> those chips and generating the VGA completely external to any emulation of
> the coco's color generating chips.

Which is exactly how the Carte Blanche (Apple II) and MISE (TRS-80 Model I) 
do the job. Much easier, much cleaner, and more flexible.

Then you have the F18A for the TI99/4A, an FPGA-based drop-in solution that 
is commercially available for the TI99/4A, which is what Gene goes on to 
dream about! ;)

<http://codehackcreate.com/archives/30>

So... not outside the realm of possibility for the Coco!

Regards,

-- 
|              Mark McDougall                | "Electrical Engineers do it
|  <http://members.iinet.net.au/~msmcdoug>   |   with less resistance!"