1DISKDEFS(5)                      File formats                      DISKDEFS(5)
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NAME

6       diskdefs - CP/M disk and file system format definitions
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DESCRIPTION

9       The  diskdefs  file  contains CP/M format descriptions, because CP/M in
10       general does not store those in the file system and there are no  stan‐
11       dards of any kind.
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13       A diskdefs file consists of one or more entries of the format:
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15              diskdef name
16                seclen size
17                tracks count
18                sectrk count
19                blocksize size
20                maxdir count
21                [dirblks count]
22                boottrk number
23                [skew number]
24                [skewtab sector[,sector]...]
25                [os 2.2|3|isx|p2dos|zsys]
26                [offset size]
27                [logicalextents count]
28                [libdsk:format name]
29              end
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31       skew and skewtab must only be used exclusively.
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33       Comments  are marked with a leading hash or semicolon and extend to the
34       end of the line.
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36       It is possible to reserve space after the directory beyond maxdir using
37       an inflated DPB ALV0.  If the format makes use of that, dirblks must be
38       set.
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SEE ALSO

41       cpm(5)
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45CP/M tools                       Jan 22, 2021                      DISKDEFS(5)
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