How does mapper 37 bank switching work? Used only(?) by this cart:
http://bootgod.dyndns.org:7777/profile.php?id=1423
It seems to be controlled by writes to 6000-7FFF. CHR is divided in two 128 KB banks controlled by bit 2 (0 or 4) of value written, but the PRG banks seems more complicated:
0, 1, 2 = first 8 banks (8*8 KB)
3 = next 8 banks
4, 5, 6 = next 16 banks
7 = last 8 banks
Is this correct? How does this mapper work at a low level?
http://bootgod.dyndns.org:7777/profile.php?id=1423
It seems to be controlled by writes to 6000-7FFF. CHR is divided in two 128 KB banks controlled by bit 2 (0 or 4) of value written, but the PRG banks seems more complicated:
0, 1, 2 = first 8 banks (8*8 KB)
3 = next 8 banks
4, 5, 6 = next 16 banks
7 = last 8 banks
Is this correct? How does this mapper work at a low level?