iNES Mapper 12 (MMC3A?)

Discuss hardware-related topics, such as development cartridges, CopyNES, PowerPak, EPROMs, or whatever.

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lidnariq
Posts: 9305
Joined: Sun Apr 13, 2008 11:12 am
Location: Seattle

Re: iNES Mapper 12 (MMC3A?)

Post by lidnariq » Sat May 16, 2020 12:25 pm

You should only have to rewire one wire on the PCB, no need for ROM patching.

Ruslansh
Posts: 42
Joined: Sun Apr 28, 2013 3:27 am

Re: iNES Mapper 12 (MMC3A?)

Post by Ruslansh » Sun May 17, 2020 12:31 am

I did so. Address A5 switched to A11. All sprites were fixed, but several remained buggy. Then I returned the addresses all back and corrected the address 4800 to 4132, all the sprites were corrected, but the Indian and a few more rights were distorted. That is, soldering the address or changing the game gives the same result.

lidnariq
Posts: 9305
Joined: Sun Apr 13, 2008 11:12 am
Location: Seattle

Re: iNES Mapper 12 (MMC3A?)

Post by lidnariq » Sun May 17, 2020 11:26 am

For whatever it's worth, Kung Lao has glitchy tiles even in an emulator.

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