|
|
Joined: Mar 2002
Posts: 1,368 Likes: 120
Very Senior Member
|
Very Senior Member
Joined: Mar 2002
Posts: 1,368 Likes: 120 |
Cool, another TMS1670 And looks like it didn't use the extra 4 input pins either.
|
|
|
|
Joined: Mar 2002
Posts: 1,368 Likes: 120
Very Senior Member
|
Very Senior Member
Joined: Mar 2002
Posts: 1,368 Likes: 120 |
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.
|
|
|
|
Joined: May 2010
Posts: 1,051
Very Senior Member
|
OP
Very Senior Member
Joined: May 2010
Posts: 1,051 |
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.
|
|
|
|
Joined: Mar 2002
Posts: 1,368 Likes: 120
Very Senior Member
|
Very Senior Member
Joined: Mar 2002
Posts: 1,368 Likes: 120 |
Do you have the top-metal die pic for Football 4? There are some evil smudges.
|
|
|
|
Joined: May 2010
Posts: 1,051
Very Senior Member
|
OP
Very Senior Member
Joined: May 2010
Posts: 1,051 |
They aren't evil; they're just misunderstood I posted the ROM array top metal pic.
|
|
|
|
Joined: May 2010
Posts: 1,051
Very Senior Member
|
OP
Very Senior Member
Joined: May 2010
Posts: 1,051 |
I uploaded die shots of the TMS1025; top metal and below in one GIMP XCF: www.seanriddle.com/tms1025.html
|
|
|
|
Joined: May 2010
Posts: 1,051
Very Senior Member
|
OP
Very Senior Member
Joined: May 2010
Posts: 1,051 |
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
|
|
|
|
Joined: Mar 2002
Posts: 1,368 Likes: 120
Very Senior Member
|
Very Senior Member
Joined: Mar 2002
Posts: 1,368 Likes: 120 |
Ok, that should be straightforward to emulate =)
|
|
|
2 members (Heihachi_73, 1 invisible),
526
guests, and
1
robot. |
Key:
Admin,
Global Mod,
Mod
|
|
Forums9
Topics9,320
Posts121,930
Members5,074
|
Most Online1,283 Dec 21st, 2022
|
|
These forums are sponsored by Superior Solitaire, an ad-free card game collection for macOS and iOS. Download it today!
|
|
|
|
|