Subject: Re: [stella] Re: 2600's TIA & the TV Boy|
From: Kevin Horton <khorton@xxxxxxxxxxx>
Date: Mon, 20 Aug 2001 00:46:11 -0500
There's only one way it's gonna be done and that's through an FPGA. It would be impossible to make a true custom chip since the required quantities are pretty low.
At least one guy on this list is thinking relatively large quantities... I can also see Activision wanting something like this although technically it's hardware piracy due to the "priveleged" technical documentation used. The Toymax thing, from what I've been told, is not an optimal chipset for 2600 compatibility. I'm under NDA so I can't give any details. You'd be surprised what they did to kludge that thing.
I think an FPGA is a pretty good "fit" for this, and would work well.
What about the power demands?
Unfortunately, my FPGA dev package is good only for up to 10K gate chips so I won't be able to integrate anything but the TIA, RIOT, and bankswitching stuff. I can't afford the $5000 to upgrade it :-P. (I'm using Xilinx Foundation, less than 8K gates version.)
What about the 6507? Isn't there a way to reduce that down to something low power? There are a lot of low power miniaturized 65c02s cores out there but none of them that I know of have authentic cycle counts. They are all optimized for faster operation.
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