>
>Actually, the MacOS uses 15-bit video for "thousands of colors" mode..
>this is why we've never really gotten any great 2D accelerators, since
>That Other OS only supports 16-bit...
>
>Even so, the calculations come out at 560kB.. still too much.
>
>Depending on the host chip, you'd be better off taking the VRAM and gfx
>chip out of the 1400, rather than mixing the ram on the Duo's board with
>the 65225... I don't know if the chips are identical in size... never
>looked.
>
>If you manage to get this to work, though.. I'd love to hear! I'm all for
>wierd HW mods!! (let's put a color TFT and color gfx chip in a Newton
>2100!! Oops.. wrong list :p )
>
>-Andy

As far as I can tell, the 65220 and 65225 are the same size and # of 
pins.  THat isnt a guarantee, but that never stopped me before.

Mad Dog

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