Re: Anyone have a dump of the Atari Quantum 82s153 / CF2038N address decoder logic at location 1B ?

From: John Robertson <pinball_at_telus.net>
Date: Sat Nov 17 2012 - 19:10:51 EST

vectorlist-steve wrote:
> 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.
>
>

If you find the code I can burn the PROM...if you provide a blank, or
will use one of mine for its cost.

John :-#)#
>
>
> 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 19:11:07 2012

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