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Rewind is a romhack using clever hex edits and it's not done by me. I just did the protection hack. This Special Edition is a full recompiled version done from source code. Nothing is "hacked" or hexedited, only some sound samples had to be injected with DocWallace OKI editor. It's got a lot...

I've updated the initial post with some more details. We welcome tests on real hardware at this point, you can play on Mame with the included ZIP file, it's set up to replace your normal jam. Please do a full factory restore from the CMOS menu! Even if the initial boot up says it did it, it does...

It came! https://drive.google.com/file/d/1OTo1fXxXhqDGz_ivZ047yiXljj2ETfhz/view?usp=sharing Try it in Mame, see whatsnew.txt!, i need sleep! (Please save your questions and comments for tomorrow!)

Get your 27C040's blanked cause something's coming really soon!

Likely the vol+/vol- buttons could be used as Select1 and Select2, i see no other way.

I took a quick look but i won't be able to fix anything asap, there's already a load of projects on my plate, and busy work weeks. :(

I still need to get Alien storm running on Clutch Hitter rom board so eventually I will peek into the Moonwalker anyromboard code and see how its done. Assuming those roms are public? Found em. I guess these two are the routines mentioned. 0x7fE80 (this one JMP's around 0x442) 0x7FF00 (this...

Did you guys try to connect video GND already at the jamma edge?

GAME( 1995, viprp1j, viprp1, spi, spi_3button, seibuspi_state, init_viprp1, ROT270, "Seibu Kaihatsu", "Viper Phase 1 (New Version, Japan)", MACHINE_SUPPORTS_SAVE | MACHINE_IMPERFECT_GRAPHICS ) // same code revision (010995 code base) - SXX2C ROM SUB cart //...

Mystery solved!

A set was submitted to Mame, added, but then later removed as stated a two-byte hack. Nem's screenshot shows a bigger difference than just two bytes, and the gfx roms are really different. @Tailsnic Retroworks : To get around the initial confusion, you had two sets? Can you also post the set...

Are you upgrading an original NBA? Or another t-unit game? 1. Well, we need to know what are you upgrading.. a JAM To TE? (Most cases you can skip burning a few, and re-use the rest.) 2. What does the cmos/boot screen show, which version / date are you running? (There may be undumped...

Edit: I see this was submitted along with PCB pics etc. so great work. From the commits i can see people thought it was very different from the original release. Even if the year was hacked then it would have been a different revision. However, it turned out to be a 2-byte different version...

NBA Rewind 4 Jam is a cracked version of "Nba Jam TE Rewind" for use on any T-Unit mainboard + sound board. I'm not able to update the links/zips in the start post, please find attached corrected sound roms. (I'm on the road for work today.)

From NBA Jam to NBA Jam TE those 4 roms did not change. You can keep the original roms on that board, they will test green. For NBA Jam TE Rewind, the red roms were changed to add Jordan and Shaq. So that's OK, unless someone fixes that, but it will confuse others. I did think they fixed it for...

Looks like that's for just a shock box, the actual cart are ~60, or i'm missing something :)

Thanks for testing it out! (That's what i need testers for!) Can you share what board you converted from? I'm a but short in time, but i will fix up the set with the correct roms asap. I thought i used the tools/patches correctly and had rewind create a set with 'get that sh1t outta here' but...

The archeology part was what kept me hooked on the Midway stuff as well. There was lots of stuff disabled, debug, many comments too. Like this bit where they disabled the backboard shattering per the NBA demands: ;Fix!!! ; LOCKUP move @bbshatter,a0 ;Already happened jrnz...

https://www.arcade-projects.com/threads/nba-jam-te-se-for-midway-wolf-unit-boards-port-milestone-1-released.31577/

Wrong roms on the soundboard perhaps?