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PostPosted: Mon Jan 22, 2018 3:48 pm 
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Joined: Thu May 19, 2005 11:30 am
Posts: 560
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 [2.04 KiB]
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PostPosted: Sat Mar 10, 2018 2:17 am 
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Since no objections have been raised after almost seven weeks, I am adding the proposal to the main submapper page.


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