Request for this popular adapter as internal ROM (U36): MegaBit 128
Normally the internal ROM has 32K. With MegBit adapter we have 1MB EPROM in the internal ROM slot.
The banking is simpel: 32 banks (0 to 31) a 32K, bank numer must written at $D700 (not readable).
https://github.com/JDet-74/C128_U36_adapter
