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I uploaded Entex Color Electronic Football 4 info: www.seanriddle.com/tms1400.html

Here's a timing video: www.seanriddle.com/colorfootball.mov

I'll scan the plastic overlay and post that, too.

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Cool, another TMS1670 smile
And looks like it didn't use the extra 4 input pins either.

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I added Funtronics RLGL, but unfortunately it doesn't do much: it plays the start jingle and locks up. I'll check Einstein another time.

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Interesting. I'm confident of the RLGL ROM dump, since I got the same results visually and electronically. From the COP4xx User's Guide, it doesn't look like there are any differences in the instruction set as compared to the other COP4xx chips, other than removal of some opcodes and interrupts.

I assume with Einstein that they programmed the game with a COP410 in mind but for some reason wound up using the COP421. I guess it's theoretically possible that they wanted some functionality that the '421 has that the '410 doesn't, but I can't think of what that would be for such a simple game.

At some point we'll probably run across a TMS-14xx/-16xx that uses the latched inputs, and maybe even the frequency divider.

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I uploaded the info for Entex Basketball 2: www.seanriddle.com/tms1100.html

I also uploaded a fuzzy timing video: www.seanriddle.com/entexbasketball2.avi

And I uploaded the overlay and bezel for Color Football: www.seanriddle.com/tms1400.html

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Do you have the top-metal die pic for Football 4? There are some evil smudges.

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They aren't evil; they're just misunderstood smile I posted the ROM array top metal pic.

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I uploaded die shots of the TMS1025; top metal and below in one GIMP XCF: www.seanriddle.com/tms1025.html

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I found a service manual for a radio that has a TMS1024. I think the basic operation of the chip (and the '1025) can be figured out from it. www.seanriddle.com/tms1025.html

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Ok, that should be straightforward to emulate =)

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