Home Page Forums MAME MAME TMS-09xx/1xxx thread (was New Dumps)

Yeah, I keep picking up games with different processors-

AMI S2000
GI PIC1655A
National Semi COP444L
NEC D1021C
Panasonic MN1400
Rockwell B6001
Rockwell B8610
Rockwell MM75
Sharp SM510

I was about to say "yeah, we acquired the datasheet/manual for the AMI S2150 a while back because of the" and then had to stop myself, because it had been Lord Nightmare who had asked me, way back in 2009, to look for it because it had been used by Wildfire electronic pinball. Ultimately, it was Bitsavers who acquired the data book, though I think I acquired the datasheet before them through other means.

Nothing has leapt out at me so far so I may expand the search to others in the S2000 family.

I checked elecdetraw, found 1 error: Change offset $632 val $EC to $FC.
splitsecondraw: Change offset $528 val $EC to $FC. Change offset $867 val $C8 to $C9.

Also, a typo in splitsecond.txt bottom table, correction here:

*edit* I had to make more changes to the LED matrix to make it look correct, see: https://github.com/mamedev/mame/blob/master/src/mess/layout/splitsec.lay (note: lamp0=R0,O0, lamp10=R1,O0, lamp63=R6,O3, etc)

As for the TMS1400 ROM decode: page,pc,bit order is the same as on TMS1xxx, but chapters are interleaved in the columns, like so:

ch1 bit 0, ch2 bit 0, ch1 bit 1, ch2 bit 1, etc.

As you can see, the last 2 columns (of total of 32) have the fewest bits in them. This is bit 7, used on branch/call opcodes.

I fixed the bits on my site, and the 28/29 typo in the text file, thanks. I haven't looked at your additional changes yet.

I figured the chapters were interleaved, but I had a bug in my bit-rearranger that messed up the file on my site. (I see in my original post I reversed bits 0-7, but my program did that part correctly.) In the top half of the array, for each row, I see chapter 0 pages 0-7 F-8, then chapter 2 pages 0-7 F-8, repeated for bits 0-7. In the bottom half I see the same, but with chapters 1 and 3.

I should get Parker Brothers Bank Shot Electronic Pool in a few days. That was created by Garry Kitchen, and the patent says it uses a TMS1400. Any other known TMS1400 games? A patent search for TMS1400 brings up some Coleco games, but I'm not sure which ones.

Oh, yeah, and Dark Tower.

A quick google brings up the Coleco Total Control 4, which uses two patents (linked in first link).
http://www.handheldmuseum.com/Coleco/TC4.htm
http://forums.bannister.org/ubbthreads.php?ubb=showflat&Number=32032

"Oh, yeah, and Dark Tower."
The reason why I think it's TMS1400 is because the MCU label is the same series as Split Second.

Split Second: MP7314-N2 (date 8027)
Dark Tower: MP7332-N1LL (date 8131)

Thanks, TC4 it is. Interesting that the CPU has all 4 games preprogrammed, and the "carts" just change the overlay and provide a signal to tell the CPU which cart is inserted. I just picked one up.

That thing where the cartridges are just jumper blocks was common for Pong systems.

For future use, I uploaded my transcription of the siliconpr0n TI57 die shot: www.seanriddle.com/ti57raw.bin

I also uploaded a jpeg of the ROM array rotated (CCW) to match the other dice, with a square overlaid on each 1 bit from my transcription: www.seanriddle.com/ti57rombits.jpg I've checked it several times, but I wouldn't be surprised if there were a couple of stray bits.

It looks like the physical layout is pretty simple; the 13 columns of 16 bits per row are the 13 bits of each word (MSb on the left) for each page, and the rows are in order. The only complication is that the page order is reversed every bit- bit 12 has them in order 0-F, but bit 11 has them reversed F-0. I uploaded this ordering as www.seanriddle.com/ti57.bin

I compared it to the ROM dump in patent 4125901, and it is very similar; Hrastprogrammer told me they were different, so that was expected, but I didn't know how similar they would be. It turns out that most of the calls and branches are 2-3 bytes different, but the other opcodes are generally the same.

I'll get a TI57 eventually and try to dump the ROM electronically to compare. I picked up a TI55, which uses the same chip, and I'll dump it, too.