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Format of IFS open file structure

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Offset Size Description

00h

WORD

???

02h

WORD

device info word

04h

WORD

file open mode

06h

WORD

???

08h

WORD

file attributes

0Ah

WORD

owner's network machine number

0Ch

WORD

owner's PSP segment

0Eh

DWORD

file size

12h

DWORD

current offset in file

16h

WORD

file time

18h

WORD

file date

1Ah

11 BYTEs

filename in FCB format

25h

WORD

???

27h

WORD

hash value of SFT address (low word of linear address + segment&F000h)

29h

3 WORDs

network info from SFT

2Fh

WORD

???