User`s manual

RELATIVEFILEFORMAT
58
DATA
BLOCK
BYTE
DEFINITION
0,1
Track and sector of next data block.
2-256
254 bytes of data. Empty records contain FF (all binary ones) in
the first byte followed by 00 (binary all zeros) to the end of the
record. Partially filled records are padded with nulls (00).
SIDE SECTOR BLOCK
BYTE
DEFINITION
0-1
Track and sector of next side sector block.
2
Side sector number (0-5)
3
Record length
4-5
Track and sector of first side sector (number 0)
6-7
Track and sector of second side sector (number 1)
8-9
Track and sector of third side sector (number 2)
10-11
Track and sector of fourth side sector (number 3)
12.13
Track and sector of fifth side sector (number 4)
14-15
Track and sector of sixth side sector (number 5)
16-256
Track and sector pointers to 120 data blocks