FSCBD
FSCBD is a PLIST defined for general use by routines that use the CMS file syste.. FSCED
is generated when the user invokes the FSCBD .acro.
o FSCBCO!! 8 FSCBFN 10 FSCBFT
18 FFSCBFM FSCBlTNO FSCEBUFF 20 FSCBSIZE
28 FSCBNORD
Hexadecimal Field
Displacement Na.e
o
8 10 18
1A
1C 20 24
25
26
28 FSCBCOMM DS FSCBFN DS FSCBFT DS FSCBFM DS FSCBlTNO DS FSCBBUFF DS FSCBSIZE DS FSCBF.' DS FSCBFLG EQU FSCBNOlT DS FSCBNORD DS CL8
CL8
CL8
CL2
H
F
F
CL2 FSCBFV ... 1
H
A
F*1 F*2 FSCBNOIT
Field Description, Contents, Meaning File system comaand (RDBUF, WRBUF, etc.)
Filena.e
Filetype
Filellode
Relative record number to be read/written
Address of read/write buffer or of STATEFST Length of buffer
F*1 RECFM -- C1J1 F*2 Flag byte
Number of records to be read/written Number of bytes actually read
188 IBM VM/310 Data Areas and Control Block Logic

FSTD
FSTD descrites the fields in a 40-byte file status table entry as found by STATE, STATEW, DftSLFS or DftSLFSW. FSTD is functionally equivalent to the FSTSECT DSECT. Hexadecimal o
8 10 18 20 Displacement
------------ 0 8 10 12
14
16
18
1A
1C
1E
1F 20 24
26
FSTDATEW FSTTlftEW FSTFftODE FSTRECCT
FSTLRECL
Field Naae FSTFNAftE DS 1D FSTFTYPE DS 1D
FSTDATEW DS 1H FSTTIl'!EW DS 1H FSTWRPHT DS 1H FSTRDPHT DS 1H FSTFftODE DS 1H
FSTRECCT DS 1H FSTFCLPT DS 1H FSTRECFft DS 1C
FSTFLAGS DS 1X !!i!§ in FSTF1AGS FSTXWDSK EQU --X'CO'---- FSTRWDSK EQU X'80' FSTXRDSK EQU X'40' FSTFILEA EQU X'07' FSTACTRD EQU X'04' 10' U1) .&. aJ.&.A""' .... n.l..,\ EQU 1'02' FSTACTPT EQU X'01' FSTRODSK EQU X'OO' Jlit§ for use !!! FSTDIA EQU i'40'-- FSTDRA EQU X'01' FSTDNI EQU X'OO' FSTLRECL DS 1F
FSTBLKCT DS 1H FSTYEARW DS 1H
FSTDSIZE EQU (*-FSTD) FSTFHAftE FSTFTYPE FS'IiRPNT FSTRDPHT FS'IFCLPT F*1 F*2
FS'IELKCT FSTYEARW Field Description, Contents, Beaning Filename
Filetype
Date last written - .addyy Time last written -hhmmss
write pointer -item number Read pointer -item number File.ode -letter and number
Number of logical records
First chain link pointer
F*1 Record format (F or V) F*2 FST flag byte
Extension of read/write disk
Read/write disk
Extension of read-only disk
File is active (one of the following)
File active for reading
File active for writing File active from a point
Read-only disk RDBUF ----Item availatle
Previous record null
Hull record
Logical record length Number of 80Q-byte blocks Year last written
FST size in bytes
Section 2. CftS Iata Areas and Control Blocks 189