[Coco] Hidden 256-color mode
Kevin Diggs
kevdig at hypersurf.com
Wed Jul 27 19:40:11 EDT 2005
Hi,
Nickolas Marentes wrote:
> James wrote:
> I thought enabling the 256 color mode was difficult because they had run
> out of physical pins on the chip rather than to hide the mode from
> Tandy. Not releasing the info was because of Tandy for sure.
>
> Nick replied:
> My contact at Tandy said the chip designer had run out of pins. This is
> why the mode was a little weird to enter. It was more of a kludge mode,
>
> Nickolas Marentes
>
Since the DACs are internal, I'm curious if anyone has any idea what
function these unavailable pins might have needed to perform?
Also, wouldn't leaving the mode in have required the DACs to be 3-bit
instead of 2? This wasn't a negligible thing at the time, was it?
kevin
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