Author Topic: Mapper 8 why?  (Read 2210 times)

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Offline metallaro1980

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Mapper 8 why?
« on: December 16, 2018, 12:15 AM »
I have a Nes Pal European version (my father bought it when i was a child in dubai 30 years ago more o less...)
I have everdrive n8 (original) with a sd card (2gb more o less)
I installed the last version and some roms.
I divided the roms in others folders inside a folder labeled "roms" (like a-b...c-d etc)
i have a problems with a game
It should use the mapper 7 but when i load-and-run it.... it will use often the 8 mapper!
the game is: WWF Wrestlemania (europe version)

whith nes mapper reader i can read this:
1 - Nintendo MMC1 Chipset / MMC1 - S(x)ROM

how can i do?
thank you very much
« Last Edit: December 16, 2018, 12:23 AM by metallaro1980 »

Offline Koh1Fds

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Re: Mapper 8 why?
« Reply #1 on: December 17, 2018, 04:27 PM »
Try to change iNes header of the rom. You can do that with Nestopia for example.

Offline Missingno255

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Re: Mapper 8 why?
« Reply #2 on: December 18, 2018, 06:31 AM »
I'm surprised that Mapper 8 is even supported, as that is a copier mapper. It's completely useless.
Owned Everdrives: Everdrive MD, Mega Everdrive, Everdrive N8, Everdrive GB X5, Turbo Everdrive, Super Everdrive, Everdrive GBA

Misc Flashcarts: SD2SNES

Offline Jegriva

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Re: Mapper 8 why?
« Reply #3 on: December 20, 2018, 10:54 PM »
I have a Nes Pal European version (my father bought it when i was a child in dubai 30 years ago more o less...)
I have everdrive n8 (original) with a sd card (2gb more o less)
I installed the last version and some roms.
I divided the roms in others folders inside a folder labeled "roms" (like a-b...c-d etc)
i have a problems with a game
It should use the mapper 7 but when i load-and-run it.... it will use often the 8 mapper!
the game is: WWF Wrestlemania (europe version)

whith nes mapper reader i can read this:
1 - Nintendo MMC1 Chipset / MMC1 - S(x)ROM

how can i do?
thank you very much

Is the rom from a NoIntro or GoodNes set? What OS are you using on the N8?

Offline Koh1Fds

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Re: Mapper 8 why?
« Reply #4 on: December 22, 2018, 05:56 PM »
GoodNES romset have a lot of roms with bad iNes headers. This is one of them. But most emulators have build-in rom's data base. So when you load a rom with bad iNES header then emulator uses rom's check sum to find it in database. If rom have bad iNes header - emulator uses info from database instead. So most of the times you can't notice that you have Bad Rom. But, obviously, as far as i know, everdrive don't have such database.
« Last Edit: December 22, 2018, 06:01 PM by Koh1Fds »