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JFCDEN
DS
JFCLIMCT DS
JFCDSORG DS
JFCRECFI-1 DS
JFCOPTCD DS
JFCBLKSI DS
JFCLRECL DS
JFCNCP
DS
JFCNTM
DS
JFCRKP
DS
JFCCYLOF DS
JFCDBUFN DS
JFCINTVL DS
JFCCPRI
DS
JFCSOWA
DS
JFCBNTCS DS
JFCBNVOL DS
*
JFCBVOLS DS
*
JFCBEXTL DS
*
*
JFCBEXAD DS
*
JFCBPQTY DS
*
JFCBCTRI DS
*
*
*
J" FCBSQTY DS
*
JFCBIND3 DS
JFCBCNTG EQU
*
JFCBMXIG EQU
*
JFCBALXI EQU
*
JFCBRNDC EQU
*
JFCBDQTY DS
*
J"FCBSPNM DS
*
*
JFCBABST DS
*
JFCBSBNM DS
*
*
JFCBDRLH DS
JFCBVLCT DS
JFCBSPTN DS
*
*
*
BLl
AL3
BL2
BLl
BLl
AL2
AL2
ALl
ALl
AL2
ALl
ALl
ALl
BJ.Jl
AL2
CLl
CLl
CL30
eLl
CL3
CL3
CLl
Cl,3
CLl
64
16
4
1
CL3
CL3
CL2
CL3
CL3
CLl
CLl
JFCBLGTH EQU 176
JFCBEND
EQU
*
MEND
NUMBER OF OVERFLOW TRACKS
NUMBER OF VOLUME SERIAL
NUJ.VJBERS
VOLUME SERIAL NUMBERS (THE
FIRST FIVE)
LENGTH OF BLOCK OF EXTRA
VOLUME SERIAL NUMBERS
(BEYOND FIVE)
TRACK ADDRESS OF BLOCK OF
EXTRA VOLUME SERIAL NUMBERS
PRIMARY QUANTITY OF D.A.
STOHAGE REQUIRED
INDICATES WHETHER CYLINDERS
TRACKS, OR RECORDS ARE
PSECIF~ED
IN JFCBPQTY AND
JFCBSQTY
SECONDARY QUANTITY OF D.A.
STORAGE REQUIRED
INDICATOR BYTE 3
BITS 0 AND 1 - CONTIGUOUS
STORAGE INDICATOR
BITS 2 AND 3 - MAXIMUM
AVAILABLE EXTENT IMJICATOR
BITS 4 AND 5 - ALL EXTENTS
INDICATOR
BITS
6
AND
7
ROUND
CYLINDER INDICATOR
QUANTITY OF D.A. STORAGE
REQUIRED FOR A DIRECTORY
CORE ADDRESS OF THE JFCB
WITH WHICH CYLINDERS ARE
SPLIT
RELATIVE ADDRESS OF FIRST
TRACK TO BE ALLOCATED
CORE ADDRESS OF THE JFCB
FROM WHICH SPACE IS TO BE
SUBALLOCATED
AVERAGE DATA RECORD LENGTH
VOLUME COUNT
NUMBER OF TRACKS PER
CYLINDER TO BE USED BY THIS
DATA SET WHEN SPLIT
CYLINDERS IS INDICATED
LENGTH OF JFCB
label Processing Routines
73
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