All ROMs > 32KB have to be loaded in MFR, they can't be run in RAM, because they are using mappers (normal RAM does not provide the "mapper" functionnalities).
Simply put, the standard RAM mapper is different and incompatible with the mapper types used by game ROMs, so a RAM expansion cartridge normally can’t run ROM games without special modifications to the game (this is what the "cracked" versions of games did).
However PlaySoniq actually does have an extra feature to support the Konami SCC mapper mode, so it should be able to run Konami games with SCC, it just seems SofaRun doesn’t support it yet. The 1chipMSX also has such an extra feature, but it seems it’s not supported yet either.
Yep, I want to have something "solid" to support non-generic flash devices (those who are not supporting all mapper types). This imply parsing the ROM and patch the switch addresses. I know some ROM loaders are already doing that, but I want to have a generic algorithm, with "clever" code-area recognition to avoid false-positive patches. This would benefit to all flash devices and we would have the same bugs, no matter which flash device is used.
Talking about that, I'm wondering if there are any other "generic" flash devices (other than MFR), supporting all or most the the known mapper types ?
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