struc FCB                       ; (FCB functions are obsolete)
 fcbDriveID     db ?            ; Drive number (0 = default, 1 = A, etc.)
 fcbFileName    db 8 dup (?)    ; Filename (space-padded ASCII)
 fcbExtent      db 3 dup (?)    ; File extension (space-padded ASCII)
 fcbCurBlockNo  dw ?            ; Current block number
 fcbRecSize     dw ?            ; Record size
 fcbFileSize    db 4 dup (?)    ; Size of file in bytes
 fcbFileDate    dw ?            ; Date file last modified
 fcbFileTime    dw ?            ; Time file last modified
 fcbReserved    db 8 dup (?)    ; Reserved
 fcbCurRecNo    db ?            ; Current record number
 fcbRandomRecNo db 4 dup (?)    ; Random record number
ends                            ; = 37d bytes