Famicom dump notes: Round 3

Famicom dump notes: Round 3
by on (#29115)
Someday I really want to write some nicely formatted docs on all the boards currently in the DB. Something similar to kevtris's site and everynes docs, the latter seems to have a lot of errors. Anyways, until then, here are some more messy notes I take as I run into new stuff. Maybe helpful to some.

--------->

Nintendo:

HVC-UN1ROM-01: At first I just figured this was going to work just like UNROM but with maybe a 64KB ROM instead of 128K, but that is not the case. D0 and D1 are not used for some reason, instead D2-D4 are used. Turns out this behavior was implemented as INES mapper 94, I never found any references to the actual board name though. Most likely was done to help thwart piracy. Was found in Japan version of Captain Commando.

NES-TBROM-01: This is not from one of my carts, but I figured I should mention it because it was previously unknown. Was found in the PAL version of Tecmo World Cup Soccer. Basically MMC3 equivelent of SBROM.

I also ran into a different version of Seicross which uses CNROM w/ diodes & 8K CHR instead of NROM.


Bandai:

There are a number of Bandai boards with japanese characters in the name, I need someone to transliterate them if possible.

JUMP-A | BANDAI-FCG-2 | 153: Yet another Famicom Jump pcb variant, this one has PRG split into 2 ROMs and a 74HC139 to hook them together. Combined ROM data matches single-chip versions.


Taito:

ARKANOID2 | TAITO-74*161/161/32 | 152: Oddly enough, it functions exactly like Bandai's board that also uses that hardware.

J9100287A | TAITO-TC0190FMC+PAL16R4 | 48: Has Taito's TC0190FMC and a PAL16R4, which is IRQ related?? I've seen references to a TC0350 and a TC0190V, the latter is currently associated with INES 48, but I have yet to see either of these.


Irem:

LROG017 | IREM-74*161/161/21/138 | 77: Apparently only used by Napoleon Senki. Pretty unique board in the way it functions with VROM/VRAM. EDIT: Current docs are correct, register usage is bits 0-1 select 32K PRG and bits 4-7 select 2K VROM

IREM-I-IM | IREM-BNROM | 34: Used in Japan version of Deadly Towers, works identical to NES-BNROM.

FC-00-016 | IREM-G101 | 32: Nothing in particular to say about this, just making note as it's the first G-101 I've come across.


Sunsoft:

SUNSOFT-3 | SUNSOFT-2 | 89: In order to be confusing, printed board name is SUNSOFT-3, but I'll call it SUNSOFT-2 because thats the mapper it uses. This is another case were docs I looked at were wrong. Correct register usage is:

bits 0-2: lower 3 bits of 8K VROM bank
bit 3: nametable select (uses single-screen)
bits 4-6: 16K PRG bank
bit 7: upper bit of 8K VROM bank

While Mito Kouman is the only game known to use this board, the board itself also supports hardwired H or V mirroring.

NTB-ROM-PCB | SUNSOFT-4 | 68: Wow this is a weird one, used in a "daul-cart" baseball game. There is a slot in the main cart to plugin a smaller cart. Unfortunately I don't have whatever was supposed to plug into it :( I think I still have it figured out though. To start off, it uses the Sunsoft-4 and also has 8K of battery-backed WRAM. PRG bank select is controled by register F000h with the following format:
---WRPPP where W = WRAM enable (0=off,1=on), R = ROM select (0=minicart rom,1=internal rom), and PPP is the 16K bank number of the selected rom. In a normal Sunsoft-4 cart, I would guess that R would just act as the upper-bit of normal bank select. When the mini-cart is not present, reading with that ROM selected results in open bus.


Jaleco:

I'm torn on how to classify these Jaleco boards. Recently I switched them all to be based on their exact names (JALECO-JF-xx), but this results in quite a bit of redundancy. Before they were based on their components, which removes all redundancy, but then you have names like JALECO-JF-<big list of discrete parts> which is rather ugly (many other boards are still defined this way). Anyways, only one "new" Jaleco board this time around:

JF-17 | JALECO-JF-17 | 72: This is pretty much exactly like INES 92 except this one maps 16K PRG banks into $8000 instead of $C000 like m92 does.

Another interesting thing I ran into was a revision of JF-13 PRG ROM. The original comes in a black cart and the revised one in a red cart. The original ROM pre-dates the revision by only 4 weeks.

Also just like to say again how bummed I am that the digital data on the speech synth chips used in many Jaleco games cannot be read! :(


Namco:

In previous notes I mentioned the odd behavior of the way PRG banking works in the game Youkai Douchuuki. The board in the one refered to uses 111F0S. To elaborate: It has a 128K PRG ROM, lets say there is a lower 64K and an upper 64K. Bank size is 8K. If you cycle thru each bank all the way thru to its max of 512K, and then break that into 64K pieces, it looks like this: LLLULLLU instead of LULULULU like you'd expect. I bring this up again because I dumped another one of these carts, this time using an epoxy board (60-14), and this one works the "normal" way... ROM data is the same too!

I also came across a few more of the oddball boards like Quinty (NAMCO-3443):

NAMCO-3433 | 88: Exactly like 3443 except has H mirroring instead of V.
NAMCO-3446 | 76: Similar to other 2, but CHR banking is setup a bit differently.


Seta:

Although a simple NROM game, it took me a bit of searching to figure out what the hell this was. This is the first Seta cart I've come across. They didn't publish too many games and I think they may have switched over to "official" carts at some point. Has a pretty funny back label with a "Do not feed to alligators" icon. :)

P3-020 | SETA-NROM-128 | 0: Nothing special, based on name, perhaps made by same mfg as some Taito boards.
Re: Famicom dump notes: Round 3
by on (#29119)
Great info as always BootGod. I've actually been meaning to arrange your notes as well....

BootGod wrote:
Someday I really want to write some nicely formatted docs on all the boards currently in the DB. Something similar to kevtris's site and everynes docs, the latter seems to have a lot of errors.


I actually have someone taken up a similar project not too long ago. As of now the doc can be found here:

http://www.romhacking.net/docs/362/

If you ever feel like browsing for errors, it'd be appreciated. I wrote it to be geared more towards emu developers, so I might be off on some hardware issues. As far as using that info in an emulator -- I think I've got everything more or less right.

But like I say -- I didn't really include many board names/mapper names partly due to my ignorance of them, and also due to them being less than important for iNES emulation (which is what I was targetting). Though a full UNIF board/mapper list is also one of my eventual goals.

Some day I plan on searching all your posts on this forum and including all the info you've found, however I just haven't gotten around to it yet. If you have all your notes collected in one place and could upload them somewhere easily, that could be very helpful.

Quote:
LROG017 | IREM-74*161/161/21/138 | 77: Apparently only used by Napoleon Senki. Pretty unique board in the way it functions with VROM/VRAM. The doc I referenced is wrong about the VROM bank select. The correct register usage is bits 0-1 select 32K PRG and bits 2-5 select 2K VROM


Regarding the register bits: are you sure? I just tried emulating Napoleon Senki using bits 2-5 for CHR and got garbage. Using bits 4-7 seems to work fine.

by on (#29120)
Quote:
Regarding the register bits: are you sure? I just tried emulating Napoleon Senki using bits 2-5 for CHR and got garbage. Using bits 4-7 seems to work fine.


I will double check, but I'm pretty sure that's how mine worked. I haven't yet checked which dumps out of this batch are new, maybe it's possible the existing dump is bad. Anyways, I'll find that cart and give it another look with copynes.

EDIT: Current docs were correct on this issue, I've edited original post. It was an error on my part in the plugin I made for it, it was just sheer luck that it happened to still dump correctly :| Good catch, Disch :)

by on (#29127)
I really wonder if HVC-SAROM, HVC-SBROM, HVC-SCROM, HVC-SHROM, HVC-TBROM, HVC-TEROM, HVC-TVROM, HVC-HKROM, HVC-PNROM, HVC-ELROM and HVC-AOROM exists at all (the NESdev wiki seems to state it, but in fact I have seen no confirmation about these).

by on (#29128)
Bregalad wrote:
I really wonder if HVC-SAROM, HVC-SBROM, HVC-SCROM, HVC-SHROM, HVC-TBROM, HVC-TEROM, HVC-TVROM, HVC-HKROM, HVC-PNROM, HVC-ELROM and HVC-AOROM exists at all (the NESdev wiki seems to state it, but in fact I have seen no confirmation about these).

That might be difficult. for PNROM:
Contributors to Wikipedia wrote:
During the release of Mike Tyson's Punch-Out!! in the United States, Nintendo released it in a gold-colored Famicom cartridge simply titled Punch-Out!! in Japan, without Mike Tyson or Mr. Dream in it, as a prize for the Golf US Course Famicom Tournament. This version's final boxer is Super Macho Man.

Battletoads (easy type) was released in Japan.

by on (#29133)
Battletoads easy type ?? Hahahah. That's the best oxymoron I've heven heard.

by on (#29138)
Bregalad wrote:
Battletoads easy type ?? Hahahah. That's the best oxymoron I've heven heard.


The difficulty of battletoads is overrated. I can beat that game with my eyes closed.

If you want a really hard game -- pick up Rolling Thunder some time.

</offtopic>

by on (#29147)
Bregalad wrote:
Battletoads easy type ?? Hahahah. That's the best oxymoron I've heven heard.


moving target
practically usefull
military intelligence
jumbo shrimp
honest politician
mixed matched

I got plenty

(offtopic ends here) :arrow:

by on (#29152)
Wow, two consecutive off-topic-ending posts...

Will a standardized INES mapper doc ever show up? I once tried to compie a mapper list, but because different emulators treat different mappers and different games differently, I couldn't get anywhere.

by on (#29253)
tepples wrote:
That might be difficult. for PNROM:
Contributors to Wikipedia wrote:
During the release of Mike Tyson's Punch-Out!! in the United States, Nintendo released it in a gold-colored Famicom cartridge simply titled Punch-Out!! in Japan, without Mike Tyson or Mr. Dream in it, as a prize for the Golf US Course Famicom Tournament. This version's final boxer is Super Macho Man.


Actually the gold famicom Punch Out is peeorom. Here's a picture:

Gold Punch Out

I have the dump I did somewhere and I had plans to examine it, but I got busy and hadn't even though it till I saw this topic... I don't have the cart anymore, so I hope I can find the dump again someday!

by on (#41280)
Well don't know if this is related or not but I think it is pretty strange, I was working on a hack of the Final Fight 3 pirate for the NES, Mapper 90 did a hard reset and noticed it was hiding on top of this game Garou Densetsu Special which is a mapper 4 or MMC3 variant game.

And I remember that somewhere in the mapper doc it says that there is a way to change the game being played in certain mapper 90 games. I hate mapper 90 damn it.