Block Distribution By Track - Commodore 1541 User Manual

BLOCK
Track number
1 to 17
18 ro24
25 to 30
31 10 35
DISTRIBUTION BY TRACK
Block Range
Oto 20
Oto 18
Oio 17
Oto 16
Total
21
19
18
17
1540/1541 BAM FORMAT
Track 18, Sector 0.
BYTE
0,1
2
3
4—143
CONTENTS
18,0]
65
0
DEFINITION
Track and block of first directory block.
ASCII character A indicating 4040 format.
Null flag for future DOS use.
Bit map of available blocks for tracks 1—35.
* ] = available block
0 = block not available
(each bit represents one block)