0060: 8 8 8 8 9 9 9 9 A A A A B B B B ;
0070: C C C C D D D D E E E E F F F F ;/
00C0: 0 0 0 0 1 1 1 1 2 2 2 2 3 3 3 3 ;\second 256K 00D0: 4 4 4 4 5 5 5 5 6 6 6 6 7 7 7 7 ; second 256K(fifth bit is handled elsewhere: bit4 is ANDed 00E0: 8 8 8 8 9 9 9 9 A A A A B B B B ; (fifth bit stored elsewhere?with MAPMOD and then passed to MAP18 directly)
00F0: C C C C D D D D E E E E F F F F ;/
Allows to map any bank to any location (similar to the RAM "mappers" in MSX