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Mapper 251
http://forums.nesdev.com/viewtopic.php?f=3&t=15357
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Author:  zeroone [ Tue Jan 10, 2017 6:15 pm ]
Post subject:  Mapper 251

The following ROM from GoodNES3.14 is listed as Mapper 251:

Multi-Game Pirate Carts.7z <Super 8-in-1 99 King Fighter (Unl).nes>

That mapper does not appear to work in any emulator. It looks like it's a variant of Mapper 45.

Does anyone have more information about this mapper or the origin of this ROM?

Author:  Myask [ Tue Jan 10, 2017 7:08 pm ]
Post subject:  Re: Mapper 251

<Super 8-in-1 99 King Fighter (Unl).nes>?
Well, my first hunch was right, CaH4e3 did at least something, but I can't really find any more on it.
CaH4e3's site wrote:
Past Changes (november 18, 2005):
  • UNL-SuperHIK8in1 unif board - (...) UNIF wrapper for "Super 8-in-1 99 King Fighter [p1].nes" converted to UNIF format with correct CHR banks order.

…then FCEU Bizhawk source says that SuperHIK8in1 is completely unaltered mapper 45.
So I expect the ROM is just a CHR-bank-shuffled mapper 45?

edited: some information found

Author:  zxbdragon [ Tue Jan 10, 2017 7:38 pm ]
Post subject:  Re: Mapper 251

this is BMC-SuperHIK8in1,mapper 45 submapper.


but this rom have two version.

1.SMYNES 1.20 only rom,Chr swap.
2.any emu rom

this rom working nestopia,fceux,fceumm

Author:  Myask [ Tue Jan 10, 2017 8:11 pm ]
Post subject:  Re: Mapper 251

zxbdragon wrote:
this is BMC-SuperHIK8in1,mapper 45 submapper.
What difference?

Author:  zxbdragon [ Tue Jan 10, 2017 9:25 pm ]
Post subject:  Re: Mapper 251

Myask wrote:
zxbdragon wrote:
this is BMC-SuperHIK8in1,mapper 45 submapper.
What difference?


no difference,pcb difference.

Author:  Myask [ Tue Jan 10, 2017 9:36 pm ]
Post subject:  Re: Mapper 251

What difference between the PCBs?
Address lines connected different?

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