SNES: Add support for ExLoRom mapping#106
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This format is used by ROM hacks, and is supported by at least Snes9x and bsnes. It's indicated by having a copy of the header at 0x400000 with a LoRom map mode. The removed check for map mode 0x22 triggered in S-DD1 games, but their memory layout is very different from ExLoRom. Their mapping is handled by `MapBsxMemoryPack` instead of the regular `RegisterHandlers` code anyway, so the setting of that flag had no effect other than what's reported in the log window, but it was removed to prevent future confusion.
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This is a resubmit of SourMesen#74
This format is used by ROM hacks, and is supported by at least Snes9x and bsnes. It's indicated by having a copy of the header at 0x400000 with a LoRom map mode.
The removed check for map mode 0x22 triggered in S-DD1 games, but their memory layout is very different from ExLoRom. Their mapping is handled by
MapBsxMemoryPackinstead of the regularRegisterHandlerscode anyway, so the setting of that flag had no effect other than what's reported in the log window, but it was removed to prevent future confusion.