>Guess it depends on the target price for the whole thing. My guess is cost
>of the whole kit will be dominated by PCB costs and the costs of the
>RAM/PROM
Yeah, the way I do stuff (and the small numbers involved) the PCB usually is
the most expensive with parts coming second...
>re: 56301's for the pci board. just looked in my data book and they list it
>at 66 and 80 MHz, so you should just have to hook a couple of parallel DACs
>to it and do everything in software.
Hmmmm... Wonder if we should go through an exercise in write speed on that
guy? (So if we have a 1024x1024 screen and wanted to do something like the
Death-star explosion at maximum deflection how many "dots" would we have to
plot?) Just handle the slew-rate limits by a forced wait in-between
absolute beam position changes? Or actually "draw" the beam to new
locations at a constant (safe) draw rate with the color guns just turned
off?
(I've never look at MAME's graphics interfaces, but if someone wanted to
replace the line-draw for the vector games with a routine that would plot
actual pixels and count them on a frame-by-frame basis that might be a good
way to check things?)
-Clay
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Received on Sat Feb 5 02:04:58 2000
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