Format of File Control Block:
Offset Size Description )
00h BYTE drive number (0 = default, 1 = A, etc)
FFh is not allowed (signals extended FCB, see #01346)
01h 8 BYTEs blank-padded file name
09h 3 BYTEs blank-padded file extension
0Ch WORD current block number
0Eh WORD logical record size
10h DWORD file size
14h WORD date of last write (see #01666 at AX=5700h)
16h WORD time of last write (see #01665 at AX=5700h) (DOS 1.1+)
18h 8 BYTEs reserved (see #01347,#01348,#01349,#01350,#01351)
20h BYTE record within current block
21h DWORD random access record number (if record size is > 64 bytes, high
byte is omitted)
SeeAlso: #01346