NES 2.0 Mapper 256 Submapper Proposal

Discuss emulation of the Nintendo Entertainment System and Famicom.

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NewRisingSun
Posts: 1510
Joined: Thu May 19, 2005 11:30 am

NES 2.0 Mapper 256 Submapper Proposal

Post by NewRisingSun »

Several VTxx-based plug-and-play consoles use a simple protection scheme intended to prevent interchanging the ROM data between different consoles. The protection scheme works by simply swapping the addresses of the bankswitch registers.

I have made a submapper proposal for mapper 256 to deal with this issue. Test ROM attached.
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Mapper256-Test.7z
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NewRisingSun
Posts: 1510
Joined: Thu May 19, 2005 11:30 am

Re: NES 2.0 Mapper 256 Submapper Proposal

Post by NewRisingSun »

Since no objections have been raised after almost seven weeks, I am adding the proposal to the main submapper page.
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