[Coco] [!! SPAM] Re: [!! SPAM] Re: [!! SPAM] Re: Coco compatible monitors...

[Mark McDougall]

On 3/07/2011 8:26 PM, John Kent wrote:

> One solution maybe to replace the GIME chip with an FPGA.

Another option is to snoop GIME & video memory accesses on the cartridge 
connector and drive out VGA from an on-board frame buffer via an FPGA GIME 
implementation.

The only issue would be that the video would be asynchronous to the GIME 
output, hence your interrupts would be out of whack with the display. Unless 
of course you had someway of synchronising the two... maybe feed the RGB 
syncs into the cart for example...?!?

Regards,

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