Commodore 64 - The Next Step

8050 BAM FORMAT.
Track 38, Sector 03
BYTE
CONTENTS
DEFINITION
0-1
39,1
Track and sector of -first directory block
*7
67
Indicates 8050.
T
0
NULL flag.
4
51
Lowest track number.
5
78
Highest track number plus 1.
6
-
Number o-f unused block on track 51.
7-10
-
Bit map of available blocks on track 51.
11-140
-
5 bytes each for BAM of tracks 52—77.
144-255
-
Not used.