Hereby I would like to ask if its possible to get a copy of the _official_ documentation of the memory layout for ROMs that are bigger than 32 Megs..does this kind of documentation exist at all?
in case you are referring to the spc7110, i dont think theres any official documentation available. but maybe you can find something through patent searches. i doubt they'd mention anything about the mapping, if you can find anything at all. it roughly works like this: the program rom (U1) is hooked up to the snes' cart bus in a fairly normal style. U2 can only be accessed by the spc7110 and holds all the compressed data. i've never worked with a game that uses it, thats about all i know. emulator sourcecode is a good way to learn more about the chip, but thats not official, of course.
