Changes
/* DONE : ROM and RAM extension */
* UpperROM has .e00 ot eFF file extension (hexa)
In r005.4, I add another UpperROM set : .f00 to .fFFfile extension (hexa). If you press "space" during a reset_key ("page up" key), upperROM files used are *range from .f00 to *.fFF instead of *ranging from .e00 to *.eFF. *LowerROM .eZZ file extension is still used in both case.
=== DONE: Another disk selector ===
