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The patent wrapper for US4162792 includes some documents that mention Conic and Football model 003201. On May 18 1979, Mattel asked for the patent to be granted ASAP to keep infringing games from being imported. I don't see a direct response, but the patent was issued on July 31. On November 29, Mattel filed a suit against F.J. Strauss Co., which was a Hong Kong company. I'm not sure if they were related to Conic, or a distributer. I bet Conic put different labels on the game to help get it past customs.

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on http://www.seanriddle.com/elecsonicfootball.txt

Is this correct? One on the + side, other on - side?
27 R6 - Piezo and 1K resistor to VDD
28 R7 - Piezo and 1K resistor to VDD

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Yep; I should have said Piezo lead 1 and Piezo lead 2 to be more clear.

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Ok, I added the football game and Microcomputer Trainer. It took me a bit of googling to find out that MP1312 is from Gakken FX-Micom R-165. I'm going to name it that in MAME, instead of the later USA distribution.

Could you ask if the other person(who?) working on Microcomputer Trainer wants credit in the MAME changelog?

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Originally Posted By hap
The luck with the Radio Shack Shack Microcomputer Trainer makes up for the broken TI35. =)
I hope we can eventually emulate TSI Speech+ as well, with this method. It's too expensive to be worth decapping. And Rik if you're reading, Black Knight Pinball(was that the name?) is a possibility too.


Yeah, Black Knight is the one sort of like Raise the Devil pinball, but the chips have different numbers on them. If that can be dumped without destroying it, that's good news...

Rik

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Hap- Cool! I guess the Microcomputer Trainer instruction PLA is standard? I compared it to the one in Entex Basketball 2 and they are not identical, but I haven't checked yet to see if the instructions are just in a different order.

<edit>I finished checking the instruction PLA and all the opcodes are the same, but in a different order.</edit>

He does not want any credit, thanks.

Rik- Other "MSL" labeled TMS1100s I've seen are Rev B and the ROMs and output PLAs can be dumped. If it is a Rev E die, I have been able to use Kevin's method of executing each byte to determine high bits, but there will be some false positives that we will have to identify. I have not been able to dump output PLAs from Rev E dies, but we can probably figure that out.


Last edited by seanriddle; 03/12/16 10:40 AM.
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Yeah, instruction PLA is a common one. Same as the one in Mattel D&D board game.

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Fonas Tri-1 has an unlabeled 40-pin DIP that I haven't been able to figure out. The PCB has a date code in 1979, and one trace is marked VSS 0 and another trace is marked VDD -15, so it's NMOS. I desoldered it and there are no markings on the bottom or on the PCB under it. I haven't had any luck with patent searches. Any ideas? Here's the pinout:

1 N/C - looks like clock output - I measure 86.5 KHz at 12.5% duty cycle
2 VSS
3 VSS
4 resistor to VDD
5 VDD
6 VSS
7 VSS
8 switch input
9 button input
10 switch input
11 button input
12 button input
13 VSS
14 button input
15 VDD
16 VSS
17 reset button - not sure if this is an actual MCU reset
18 out to LED
19 out to LED
20 out to LED
21 out to LED
22 out to LED
23 out to LED
24 out to LED
25 out to LED
26 VDD
27 N/C
28 VSS
29 VSS
30 VSS
31 out to 75492
32 out to 75492
33 out to 75492
34 out to 75492
35 out to 75492
36 out to 75492
37 out to transistor
38 out to transistor
39 out to transistor
40 out to piezo

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Does the pinout match somewhat with Parker Bros Wildfire? That one is a AMI S2000.

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No, I checked that one, and many other early 80s MCUs. The closest I've found is Rockwell MM78L, but it's not exact and has a max voltage of 11V instead of 15V. So I'm thinking maybe it's an MM78 in a 40 DIP instead of their usual 42 QIP. I'll decap it and see.

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