I stumbled across James' food fight page last night before I posted.
After checking the datasheet for the 82s153 there was not mention of
fuses so I have high expectations a read can be performed. A friend has
offered to dump his spld if he can and another offered clone his chip to
a blank one if needed. Seems like a worthy mini project to archive this
info.
The Atari Quantum part number is 137290-001 but the game built by
General Computer Corp for Atari (well known fact) and was their only
vector game built under contract for Atari. I took John's advise and
looked through the food fight files and mame source but could not find a
match for the 137290-001. The memory map is also different between the
two games so it is ovbiously not a plug and play.
James also indicated food fight decoder used only simple combinatorial
logic so if that holds true for Quantum, and I had a good chip, I could
just run through all itterations on the input and map the outputs. A
little refactoring and we end up with the logic to program a 82s153, a
GAL16v8 like James did or whatever floats your boat and the source files
also end up on the net for posterity.
On 11/17/2012 2:59 PM, jrok wrote:
> The good news is the 82S153 didn't have protection fuses so they can
> be read out straight with the right programmer. Then with a little
> work the fuse matrix can be reversed back to the equations.
> There's really not that much too them, If anyone wants to have a go it
> I've got the datasheets plus the 1983 signetics programmable logic
> manual scanned around here.
>
> - James
>
>
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Received on Sat Nov 17 18:45:21 2012
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