MAMEWorld Forums - EmuChat - Mattel Football 2 *edit*

When reading these source code comments, I was guessing PPS 4/1 was going to be concluded for time being after Horoscope was added.

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src/devices/cpu/pps41/mm78la.h

For B8000 (I call it MM77LA), no documentation is known, pinout might not be accurate.

src/devices/cpu/pps41/pps41base.cpp

no known documentation exists for MM77LA, mcu name is guessed
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And then hap comes through with his update getting Football 2 in working shape.

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https://forums.bannister.org/ubbthreads.php?ubb=showflat&Number=118795#Post118795

Mattel Football 2

https://github.com/mamedev/mame/commit/dc0fe9c309c736326267429d6c597ff087bbf2fb

New working machines
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Football 2 (Mattel) [hap, Sean Riddle]

src/mame/drivers/hh_pps41.cpp

Mattel Football 2 (model 1050)
* PCB label: MATTEL, 1050-4369D
* MM77LA MCU (label B8000-12, die label B8000)
* 7 7seg leds, 30 other leds, 2-bit sound

CONS( 1978, mfootb2, 0, 0, mfootb2, mfootb2, mfootb2_state, empty_init, "Mattel", "Football 2 (Mattel)", MACHINE_SUPPORTS_SAVE )
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Thanks hap for making the Mattel led sports games being playable in 2021.

For those wondering about other Mattel led games not yet emulated...here is hap's post.

hap
03/23/21
https://forums.bannister.org/ubbthreads.php?ubb=showflat&Number=118797#Post118797

FWIW, no other PPS4/1 handheld games in Sean's vault, but I'm sure a few others exist.
The older Mattel sports games are on similar Rockwell calculator MCU's from before they designed PPS4/1.

Other known devices with PPS4/1:
- Mattel Las Vegas (home pinball machine): MM77
- Brunswick home pinball machines probably have a MM76
- Bearcat BC300 supposedly has a MM76D
- Zoom Telephonics Demon Dialer has a MM77 IIRC. Sean has it, but there's not much to emulate if MAME doesn't simulate a telephone/phone line.
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https://handheldmuseum.com/Mattel/index.html

Unsure about Baseball, but I am going with Sean's old post (further below). Football and Auto Racing use Rockwell's earlier mcu which is another different mcu core needing to be assembled which could also include other Mattel led games as hap mentioned in his old post.

https://handheldmuseum.com/Mattel/BaseB.htm

https://handheldmuseum.com/Mattel/FB.htm CPU: Rockwell B6100-15 (modified calculator chip)

https://handheldmuseum.com/Mattel/AutoRace.htm

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hap
03/11/21
https://forums.bannister.org/ubbthreads.php?ubb=showflat&Number=118754#Post118754

Mattel Missile Attack MCU label is B6001, same as Battlestar Galactica which is already decapped.
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An old post from seanriddle of the other Mattel led games that are not yet emulated.

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seanriddle
https://forums.bannister.org/ubbthreads.php?ubb=showflat&Number=118576#Post118576

I think I've acquired all the Mattel LED handhelds. I've dumped the COPS I Basketball visually and have Soccer and Hockey. Basketball 2 and Soccer 2 have a metal layer over the ROM area to obscure the bits, but I should be able to dump those electronically. The original games (Auto Race, Football, Baseball) use a modified Rockwell calculator chip that is very similar to the PPS-4/1 microcontrollers, and some later games (mostly non-sports) use PPS-4/1 chips. There's also a set of (non-sports) LED games that use Hitachi calculator chips. There are also some LCD re-releases- I think I have Classic Football and Classic Baseball.
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Some of them yet to be emulated that might be hh_cops1.cpp or maybe hh_cop400.cpp file in the future.

https://github.com/mamedev/mame/blob/master/src/mame/drivers/hh_cops1.cpp

https://github.com/mamedev/mame/blob/master/src/mame/drivers/hh_cop400.cpp

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Mattel's Basketball 2 https://handheldmuseum.com/Mattel/BasketB2.htm

Mattel's Ski Slalom https://handheldmuseum.com/Mattel/SkiSlalom.htm

Mattel's Soccer 2 https://handheldmuseum.com/Mattel/Soccer2.htm

Mattel's Armor Battle https://handheldmuseum.com/Mattel/ArmorBattle.htm

Mattel's Sub Chase https://handheldmuseum.com/Mattel/Sub.htm
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Edited by gregf (03/23/21 10:50 PM)