| Unused

BDF1: Unused

These bytes are probably remnants of location descriptor tables.
BDF1 | DEFB $78,$FC | y=32, z=2; left, right, up/left, up/right, down/left, down/right
BDF3 | DEFB $7A,$FC | y=33, z=2; left, right, up/left, up/right, down/left, down/right
BDF5 | DEFB $FF | End marker
BDF6 | DEFB $2A,$C4 | y=25, z=1; left, right, down/right
BDF8 | DEFB $DB,$DC,$D0 | y=31, z=1 or 2; left, right, up/right, down/left, down/right
BDFB | DEFB $78,$E0 | y=32, z=2; left, right, up/left
BDFD | DEFB $FF | End marker
BDFE | DEFB $FF,$FF |