Control Data 3170 Installation Handbook page 276

TABLE III- 9-1. FILE LABEL FIELD DESCRIPTION (Cont'd)
Word
28
29
30
31
32
33
34
35
36
37
38
39
Bits
23
22-18
17
16-00
23
22-18
17-12
11-00
23-00 }
23-00
23-00 }
23-00
23-00 }
23-12
11-00 }
23-00
23-00
23-00
23
22
21-00
60410800 A
Field
kfm
kfs
r
keyloc
idm
idl
status
idloc
sdate
stime
setid
reelid
gen
seqno
c
w
r
Significance
Mode of key field address
o
Key field is within each record
1
Key field is outside record (does not
appear in file)
Number of characters in key field
Reserved
Character position of key field relative to beginning
of record if key field is within record.
Character address of location which contains key
field if key field is not contained within record.
Identification mode; type of record identification
associated with every record in file
o
Alphanumeric
1 Numeric
Identification length; length in characters of record
identification field of every record in file.
Reflects current status of file as defined by each
operating system or library task.
Identification location; starting character position of
identification field in each record of file relative to
beginning of record.
Date of the last successful SAVE operation.
The date is in the form mml dd/yy.
Time of last successful SAVE operation.
The time is in the form hh/mml
SSe
Set identification of last good SAVE tape
Reel identification of the last good SAVE tape
Generation number of the last good SAVE tape
Sequence number of the last good SAVE for this file
c is set to 1 if data has been written on the file
since the last SAVE.
w is set to 1 if the file has ever been formatted for
write recovery.
Reserved
III - 9-11