Monthly Archives: June 2014

Sachen 4B Mono Mapper

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This information is superseded, see Sachen Mappers. I thought I might as well update that within hours of opening my 4B-007 cartridge I managed to dump it. Basically, the mapper has at least four registers. Lock register: Whether the mapper is unlocked or not, see below 0x0000-0x1FFF: base ROM bank… Read more »