The assigment appears to be done here:
https://github.com/devinacker/bsnes-plus/blob/master/common/nall/snes/cartridge.hpp#L201
This was fixed in the main BSNES repo in 2020 but is still present in bsnes-plus:
bsnes-emu/bsnes@d4e1c34
The effect is that about 1 MB of ExHiRom's 8 MB is effectively unusable in this emulator, since any lookups try to go to SRAM.
The assigment appears to be done here:
https://github.com/devinacker/bsnes-plus/blob/master/common/nall/snes/cartridge.hpp#L201
This was fixed in the main BSNES repo in 2020 but is still present in bsnes-plus:
bsnes-emu/bsnes@d4e1c34
The effect is that about 1 MB of ExHiRom's 8 MB is effectively unusable in this emulator, since any lookups try to go to SRAM.