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1541 BLOCK DISTRIBUTION BY TRACK
Track number
1 to 17
18 to 24
25 to 30
31 to 35
Range of Sectors
0to20
0tol8
Oto 17
0tol6
Total # of Sectors
21
19
18
17
1541 BAM FORMAT
Track 18, Sector 0.
BYTE
0,1
2
3
4-143
CONTENTS
18,01
65
0
DEFINITION
Track and sector of first directory block.
ASCII character A indicating 1541/4040 format.
Null flag for future DOS use.
Bit map of the available blocks in tracks 1-35.
1 = available block
0 = block not available (each bit represents one block)
1541 DIRECTORY HEADER
Track 18, Sector 0.
BYTE
144-159
160-161
162-163
164
165-166
167-170
170-255
CONTENTS
160
160
50,65
160
0
DEFINITION
Diskette name padded with shifted spaces.
Shifted spaces.
Diskette ID.
Shifted space
ASCII representation of 2A, which are, respectively,
the DOS version (2) and format type (1541/4040).
Shifted spaces.
Nulls ($00), not used.
88
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