Online HelpPC 2.10 Quick Reference Utility Copyright 1991 David Jurgens
DIRECTORY - DOS Directory Structure
Byte Description
00 Filename status:
00 = Filename never used
05 = First character of filename is E5
E5 = File has been erased
2E = This is a subdirectory entry
00-07 Filename, left justified
08-0A Filename extension, left justified
0B File's attribute:
│7│6│5│4│3│2│1│0│ byte 0B
│ │ │ │ │ │ │ └─── read only
│ │ │ │ │ │ └──── hidden
│ │ │ │ │ └───── system
│ │ │ │ └────── volume label
│ │ │ └─────── subdirectory
│ │ └──────── archive
└─┴───────── unused
0C-15 Reserved by DOS
16-17 Time the file was created or last updated:
│F│E│D│C│B│A│9│8│7│6│5│4│3│2│1│0│ 17,16
│ │ │ │ │ │ │ │ │ │ │ └─┴─┴─┴─┴─ seconds/2
│ │ │ │ │ └─┴─┴─┴─┴─┴────────── minutes
└─┴─┴─┴─┴───────────────────── hours
18-19 Date the file was created or last updated:
│F│E│D│C│B│A│9│8│7│6│5│4│3│2│1│0│ 19,18
│ │ │ │ │ │ │ │ │ │ │ └─┴─┴─┴─┴─ day 1-31
│ │ │ │ │ │ │ └─┴─┴─┴────────── month 1-12
└─┴─┴─┴─┴─┴─┴───────────────── year + 1980
1A-1B Starting cluster number of the first file cluster
1C-1F File size in bytes (low order first)
[helppc.bosbyte.nl] directory format