ROM Ident and bootlegs/alt-revisions

modessitt

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Is there any use for identifying? I have what I think is a bootleg Rygar (looks just like a normal Rygar), but RomIdent is coming up as "not found". Tried searching the crc code but got no hits.

I also tried checking a board that I KNOW is a Ten Yard Fight '85. Most of the chips are the same as a standard 10-yd Fight, but 7 are different to make it an '85. However, when I pull one of those seven and check it, I also get "not found" with a crc that doesn't match the ones in MAWS - either for 85 or regular. Does that mean this might have a different ROM version?

Eventually I'll get around to building adapters (based on what I think they are) and testing them. If they work, then I'll know for sure what they are. Will anyone care to know about these different ROM versions? (MAME developers, MAWS, Steph, etc?)
 
Try identifying with this: http://romident.ki4swy.org/
It may have a newer database than a command-line romident tool.

If they're not identified, and you're pretty sure your ROMs are not corrupted (i.e. the game plays), then I'd think the MAME guys may want a copy of the dumped data.
 
If they're not identified, and you're pretty sure your ROMs are not corrupted (i.e. the game plays), then I'd think the MAME guys may want a copy of the dumped data.

You'd think some of that would have been done already. I noticed when messing with a DK 2-bd set that the only ROMs listed on MAWS are for the 4-bd set...
 
I don't know much about Nintendo stuff... is the DK game code different on 4-board sets than it is on 2-board sets?

It shouldn't be...just in different locations on the boards. The only difference would be on the early sets that have the ladder cheat and "Nintendo" instead of "Nintendo of America" on the title screen. But both sets are in MAME, so you should be able to find either one in romident. That being said, I've got bootleg boards that aren't in MAME. Donkey King, which is Crazy Kong with a different title screen, and 2 Pop-Man boards (one says "bonus Popman at 10,000", the other says "bonus Puckman at 10,000", but otherwise, are the same. It's Pac-Man with Popeye's head, and the New Puck X maze.) I also had another version of Crazy Kong that had a ladder missing on the barrel board, submitted that one and it's in MAME now. They also recently added a Donkey King Jr (which I have), but someone else was dumping it the same time I did and they used theirs (mine was having some problems with a couple ROM's not reading consistently)
 
http://mamedev.org/contact.html
"I have a new ROM dump that I would like to submit."

I don't know much about Nintendo stuff... is the DK game code different on 4-board sets than it is on 2-board sets?

The code might be the same, but I know for a fact that two chips (3N and 3P) on the 2-bd set comes up as "not found" and with a different crc number, but the boards work just fine...
 
You should submit them to MAME. Everyone always thinks someone else will do it, but there are lot of things not dumped. Some are just revisions, but some are needed for a specific PCB and therefore you may need that eventually for a repair. Without having this one repository of dumps, repairs can be difficult if not impossible.
 
If you're talking to me, I've submitted the 2 sets of Pop-man roms, but nothing ever came of it. Unfortunately, I can't get consistent reads on the Donkey King ROM's, even though the board works just fine. I think it's my burner, it seems to read 2716's just fine, but always reads multiple checksums on 2732's...interestingly, it fails when I try to burn a blank 2716, but burns blank 2732's just fine :confused:
 
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