SM 0045_COS_Table_Descriptions_Oct80 0045 COS Table Descriptions Oct80
SM-0045_COS_Table_Descriptions_Oct80 SM-0045_COS_Table_Descriptions_Oct80
User Manual: SM-0045_COS_Table_Descriptions_Oct80
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c:
RESEARCH, INC.
CRAY-1®
COMPUTER SYSTEMS
COS
TABLE DESCRIPTIONS
INTERNAL REFERENCE
MANUAL
SM-0045
PUBLICATION CHANGE NOTICE
RESEARCH, INC.
October, 1980
TITLE:
COS Table Descriptions Internal Reference Manual
PUBLICATION NO.
SM-0045
REV.
The information in this manual was previously contained in part 5 of
the CRAY-OS Version 1 System Programmer's Manual, publication 2240012,
which is now obsolete.
This manual supports COS Version 1.09.
c:
RESEARCH, INC.
CRAY-1®
COMPUTER SYSTEMS
COS
TABLE DESCRIPTIONS
INTERNAL REFERENCE
MANUAL
SM-0045
Copyright© 1980 by CRAY RESEARCH, INC. This manual or
parts thereof may not be reproduced in any form without
permission of CRAY RESEARCH, INC.
RECORD OF REVISION
RESEARCH. INC.
PUBLICATION NUMBER
SM-0045
Each time this manual is revised and reprinted, all chan~es issued against the previous version in the form of change packets are
incorporated into the new version and the new version IS assigned an alphabetic level. Between reprints, changes may be issued
against the current version in the form of change packets. Each change packet is assigned a numeric designator, starting with
01 for the first change packet of each revision level.
Every page changed by a reprint or by a change packet has the revision level and change packet number in the lower ',righthM, d
corner. Changes to part of a page are noted by a challge bar along the margin of the page. A change bar in the margin opposite
the page number indicates that the entire page is new; a dot in the same place indicates that information hasbeenrnoved from
one page to another, but has not otherwise changed.
'
Requests for copies of Cray Research, Inc. publications and comments about these publications should be directed to:
CRAY RESEARCH, INC.,
1440 Northland Drive,
Mendota Heights, Minnesota 55120
Revision
Description
October, 1980 - Original printing. The information in
this manual was previously contained in part 5 of the
CRAY-OS Version 1 System programmer's Manual,
publication 2240012, which is now obsolete. This
manual supports the 1.09 release.
SM-0045
ii
PREFACE
This publication is part of a set of manuals written for programmers,
analysts, and field engineers who are responsible for installing,
debugging, and modifying the CRAY-l Operating System (COS).
This manual contains information for making the transition from the
external features of the operating system as described in the CRAY-OS
Version 1 Reference Manual to the listings.
Although a general familiarity with the concept of operating systems is
assumed, this publication does not presume that the reader knows the
principles or techniques of any other specific operating system.
Other publications in this set are:
SM-0040
SM-0042
SM-0043
SM-0044
SM-0046
SM-0049
SM-0050
COS EXEC/STP/CSP Internal Reference Manual
Front-End Protocol Internal Reference Manual
COS Operational Procedures Reference Manual
COS Operational Aids Reference Manual
lOS Software Internal Reference Manual
DGS Internal Reference Manual
COS Simulator (CSIM) Reference Manual
The following two manuals, which are available for use only by Cray
Research personnel, complete the set of software maintenance
documentation.
SM-OOl7
SM-004l
FORTRAN (CFT) Internal Reference Manual
COS Product Set Internal Reference Manual
Manuals designated as internal describe the internal design of the
software whereas the other manuals in the set define procedures and
external features of tools needed for installing and maintaining CRI
software.
The reader is assumed to be familiar with the contents of the CRAY-OS
Version 1 Reference Manual (SR-OOll) and to be experienced in coding in
the CRAY-l Assembly Language (CAL) as described in the CAL Version 1
Reference Manual, CRI publication SR-OOOO.
SM-0045
iii
CONTENTS
PREFACE • • • • • • • • • • •
1.
iii
1.1-1
SYSTEM TABLE DESCRIPTIONS
1.1
1.AC
1.AP
1.AU
1.BA
1.BG
1.BP
1.CB
1.CC
1.CH
1.CI
1.CS
1.CX
1.DA
1.DC
1.00
1.DE
1.DN
1.DP
1.DR
1.DT
1.DV
1.EQ
1.IB
1.JC
1.JT
1.JX
1.LC
1.LG
1.LS
1.LT
1.LX
1.MP
1.MS
1.PD
1.PI
1.PM
1.PR
1.PT
1.PU
1.QC
1.QD
SM-0045
INTRODUCTION • • • •
JOB ACCOUNTING TABLE - JAC
ANY PACKET TABLES - APT
ACTIVE USER TABLE - AUT
BINARY AUDIT TABLE - BAT • •
BEGIN CODE EXECUTION TABLE - BGN
BUFFER POOL TABLE - BPT • • • •
CHANNEL BUFFER TABLE - CBT
CHAIN CONTROL - CC • • •
CHANNEL TABLE - CHT
CHAIN ITEM - CI
CLASS STRUCTURE DEFINITION •
CHANNEL EXTENSION TABLE - CXT
DATASET ALLOCATION TABLE - DAT •
DATASET CATALOG - DSC • • • • •
DATASET DEFINITION LIST - DDL
DEVICE ERROR TABLE - DET • • •
DATASET NAME TABLE - DNT • • •
DATASET PARAMETER AREA - DSP •
DEVICE RESERVATION TABLE - DRT • •
DEVICE CHANNEL TABLE - DCT •
DEVICE LABEL - DVL • • • •
EQUIPMENT TABLE - EQT
INTERACTIVE BUFFER TABLE •
JOB COMMUNICATION BLOCK - JCB
JOB TABLE AREA - JTA • • •
JOB EXECUTION TABLE - JXT
LINK CONFIGURATION TABLE - LCT •
LOG TABLES - LGI, LGR, LGUQ • • • •
LINK INTERFACE STREAM TABLE - LST
LINK INTERFACE TABLE - LIT • •
LINK INTERFACE EXTENSION TABLE - LXT •
MEMORY POOL TABLE - MP • • • •
MEMORY SEGMENT TABLE - MST • •
PERMANENT DATASET TABLE - PDS
PERMANENT DATSET INFORMATION TABLE - PDI •
PERMANENT DATASET DEFINITION - PDD •
PROCEDURE FILE STACK TABLE
POOL TABLE - PT • • • • •
PHYSICAL UNIT TABLE - PUT
QUEUE CONTROL TABLE - QCT
QUEUED DATASET TABLE • • • •
v
1.1-1
1.AC-l
1.AP-l
1.AU-l
1.BA-l
2.BG-l
1.BP-1
1.CB-1
1.CC-l
1.CH-l
1.CI-1
1.CS-l
1.CX-l
1.DA-l
1.OC-l
1.DD-1
1.DE-l
1.DN-l
1.DP-l
1.DR-l
1.DT-1
1.DV-1
1.EQ-1
1.IB-1
1.JC-l
1.JT-l
1.JX-1
1.LC-1
1.LG-1
1.LS-1
1.LT-1
1.LX-1
1.MP-1
1.MS-1
1.PD-1
1.PI-l
1.PM-1
1.PR-1
1.PT-1
1.PU-l
1.QC-1
1.QD-1
1.RJ
1.RQ
1.SBU
1.SC
1.S0
1.ST
1.TB
2.
ROLLED JOB INDEX TABLE - RJ • • • • • • • • • • • • •
REQUEST TABLE - RQT • • • • • • • • • • • • • • • • •
SYSTEM BILLING UNIT TABLE - SBU • • • • • • • • • • •
SUBSYSTEM CONTROL TABLE - SCT • • • • • • • • • • • •
SYSTEM DATASET TABLE - SOT ••
SYSTEM TASK TABLE - STT
TASK BREAKPOINT TABLE - TBPT
2.1-1
LOADER TABLE DESCRIPTIONS
2.1
2.BRT
2.0IR
2.DMT
2.DPT
2.POT
2.SMT
2.TXT
2.XRT
SM-0045
1.RJ-1
1.RQ-1
1.SBU-1
1.SC-1
1.S0-1
1.ST-1
1.TB-1
INTRODUCTION • • • •
BLOCK RELOCATION TABLE - BRT •
DIRECTORY - DIR (BUILD)
DEBUG MAP TABLE - DMT
DUPLICATION TABLE - OPT
PROGRAM DESCRIPTION TABLE - PDT
SYMBOL TABLE - SMT • • • • • • •
TEXT TABLE - TXT • • • • • • • •
EXTERNAL RELOCATION TABLE - XRT
vi
2.1-1
2.BRT-1
2.0IR-1
2.DMT-1
2.0PT-1
2.PDT-1
2.SMT-1
2.TXT-1
2.XRT-1
FIGURES
1. AC-l
1.AP-2
1.AU-l
1.BA
1.BG
1.BP
1.CB-l
1.CB-2
1.CC-l
1.CH-l
1.CI-l
1.CS-l
1.CS-2
1.CS-3
1.CS-4
1.CX-l
1.DA-l
1.DA-2
l.DA-3
1.OC-l
l.DC-2
1.OC-3
1.DD-l
l.DE-l
l.DN-l
1. DP-l
1.DR-l
1.DT-l
l.DV-l
1.EQ-l
1.IB-l
1.IB-2
1.JC-l
1.JT-l
1.JX-l
l.LC-l
1.LG-l
l.LG-2
l.LG-3
l.LG-4
1.LS-l
1.LT-l
1.LX-l
l.MP-l
l.MS-l
Job Accounting Table (JAC)
•••••
Disk Request Packet (A-Packet)
• •
Active User Table (AUT) • • • • •
•
Binary Audit Table (BAT) •• ••
•
Begin Code Execution Table (BGN) • • • •
• •
Buffer Pool Table (BPT) • • • • •
Disk I/O for of Channel Buffer Table (CBT)
•
Normal and error pseudo channel form of
Channel Buffer Table (CBT) • • • • • •
•
Real-time pseudo channel form of Channel
Buffer Table (CBT)
•
Chain Control Word • • • •
•
Channel Table (CHT) •
•
Chain Item
• •
Class Structure Definition (CSD) header • • • • • • • • •
CSD map • • • •
•
CSD expression • • • • • • • • • • • • •
• ••••
CSD last word • •
• • • • • •
Channel Extension Table format (CXT) • • • • •
•
DAT space header
•
DAT page header/entry header • • • •
• • • • • • • •
•
DAT partition header
Dataset Catalog (DSC) page
• •
•
DSC page header • • • • • • •
Dataset Catalog (DSC) Table entry • •
••••
•
Dataset Definition List (DDL) •
Disk Error Table (DET) • • • • •
•
•
Dataset Name Table (DNT) entry
Dataset Parameter Area (DSP) • • • • • • • • • • • • • •
•
Device Reservation Table (DRT)
Device Channel Table (DCT)
••••••
•
Dev ice Lable (DVL) • • • • • •
Equipment Table (EQT) • • • • • •
•
• •
Interactive Buffer Table (IBT) header
IBT entry • • • • • • • • • • •
•
•
Job Communication Block (JCB) • • •
Job Table Area (JTA) • • • • • •
•
•
Job Execution Table (JXT) entry
Link Configuration Table (LCT) • • • •
•
Request word to MSG (LGI) • • •
•
Record in system log (LGR)
•
•
$LOG Record in Memory Pool (LGUQ)
$LOG Record in JXT Table (LGJ)
• • • •
•
• •
Link Interface Stream Table (LST) • • • • • • • •
Link Interface Table (LIT) • • • •
•
•
Link Interface Extension Table (LXT).
Memory Pool • • • • • • • • • • • • • • • •
•
Memory Segment Table (MST) Entry
• •
SM-0045
vii
1.CB-3
1.AC-l
l.AP-l
1.AU-l
1.BA-l
1.BG-l
l.BP-l
1.CB-l
l.CB-2
1.CB-3
1.CC-l
1.CH-l
l.CI-l
1.CS-l
1. CS-2
1.CS-2
1.CS-3
1.CX-l
1.DA-l
1. DA-2
1.DA-3
1.DC-l
1.DC-2
1.DC-3
1.DD-l
1.DE-l
1.DN-l
1.DP-l
1.DR-l
1.DT-l
1.DV-l
1.EQ-l
1.18-1
1.IB-l
1.JC-l
1.JT-l
1.JX-l
1.LC-l
1.LG-l
1.LG-l
1.LG-2
1.LG-3
1.LS-l
1.LT-l
1.LX-l
1.MP-l
1.MS-l
1.PD-l
1.PI-l
1.PM-l
1.PR-l
1.PT-l
1. PU-l
1.QC-l
1.QD-l
l.RJ-l
1.RJ-2
1. RQ-l
1.SBU-l
1.SC-l
1. SD-l
1.ST-l
l.TB-l
2.BRT
2.DMT-l
2.DPT
2.PDT-l
2.PDT-2
2.SMT-l
2.SMT-2
2.SMT-3
2.SMT-4
2.SMT-5a
2.SMT-5b
2.SMT-5c
2.SMT-6
2.SMT-7
2.TXT
2.XRT
SM-0045
Permanent Dataset Table (PDS)
••••
Permanent Dataset Information Table (POI)
POD Format
•••••••••••
Procedure File Stack Table
Pool Table • • • • • • • • • • • • • •
Physical unit Table (PUT) • • • • • • •
•
Queue Control Table Header (QCT)
Queued Dataset Table (QDT)
Rolled Job Index (RJI) entry zero fields • • • •
Rolled Job Index (RJI) other entry fields
•
Request Table (RQT) • • • • • •
System Billing Unit Table (SBU) • • • •
Subsystem Control Table (SCT)
SOT entry • • • • • • •
System Task Table (STT)
Task Breakpoint Table - TBPT • • • •
Block Relocation Table - BRT
DEBUG Map Table - DMT ••
Duplication Table - DPT •
Program Description Table - PDT.
PDT header area • • • • • • •
Subroutine table
••••
Common block table
• • ••••••••
Subroutine table header.
Symbol descriptor format
Word CML+l for class 0 symbols • • • •
Word CML+l for class 1 symbols
Word CML+l for class 2-5 symbols
Dimension descriptor entry format •
Common block table header format
Text Table - TXT • • • ••
External Relocation Table - XRT ••
viii
•
•
•
•
•
•
• • •
•
•
• ••
• • •
•
•
• • •
• • •
•
• • •
•••
• •
•
• •
• •
•
•
•
•
•
•
•
•
•
•
• • • •
• •
•
1.PD-l
1.PI-l
1. PM-1
1.PR-l
1.PT-l
1.PU-l
1.QC-l
1.QD-l
1.RJ-l
1.RJ-2
l.RQ-l
1.SBU-l
1.SC-l
1.SO-1
l.ST-l
1.TB-l
2.BRT-l
2.DMT-l
2.DPT-l
2.PDT-l
2.PDT-3
2.SMT-l
2.SMT-2
2.SMT-3
2.SMT-4
2.SMT-6
2.SMT-6
2.SMT-7
2.SMT-8
2. SMT-9
2.TXT-l
2.XRT-l
SYSTEM TABLE DESCRIPTIONS
1.1
1
INTRODUCTION
The tables summarized below are described in subsequent sections in
alphabetical order according to their unique 2-character prefixes. Pages
are also numbered according to the table prefixes. Tables may be
manipulated by use of the table management macros described in the COS
Operational Aids Reference Manual, publication SM-0044.
Prefix
Table name and common mnemonic
Residence
AC
Job Accounting Table (JAC)
User
AU
Active User Table (AUT)
STP
BA
Binary Audit Table (BAT)
BG
Begin Code Execution Table (SGN)
User
User
BP
Buffer Pool Table
High range of
Memory
CB
Channel Buffer Table (CBT)
EXEC
CC
Chain Control
STP
CH
Channel Table (CHT)
EXEC
CI
Chain Item
STP
CS
Class Structure Definition (CSD)
STP
CX
Channel Extension Table (CXT)
EXEC
DA
Dataset Allocation Table (DAT)
STP
DC
Dataset Catalog (DSC)
Disk
DO
Dataset Definition List (DDL)
User
DE
Device Error Table (DET)
STP
DN
Dataset Name Table (DNT)
JTA/STP
DP
Dataset Parameter Area (DSP)
User/STP/JTA
DR
Device Reservation Table (DRT)
STP
DT
Device Channel Table (OCT)
STP
DV
Device Label (DVL)
Disk
EQ
Equipment Table (EQT)
IB
Interactive Buffer Table (1ST)
STP
STP
SM-0045
1.1-1
Table name and common mnemonic
Residence
JC
Job Communication Block (JCB)
User
JT
JX
Job Table Area (JTA)
Below User
Job Exectuion Table (JXT)
STP
LC
Link Configuration Table (LCT)
STP
LG
Log Tables (LGI, LGR, LGUQ)
STP
LS
LT
Link Interface Stream Table (LST)
STP
Link Interface Table (LIT)
STP
LX
Link Interface Extension Table (LXT)
STP
MP
Memory Pool Table
STP
MS
Memory Segment Table (MST)
STP
PO
Permanent Dataset Table (PDS)
STP
PI
Permanent Dataset Information (PDI)
STP
PM
Permanent Dataset Definition (PDO)
User
PR
Procedure File Stack Table
JTA
PT
Pool Table
STP
PU
Physical unit Table (PUT)
EXEC
QC
Queue Control Table (QCT)
QD
RJ
Queued Dataset Table (QDT)
STP and EXEC
STP
Rolled Job Index Table (RJI)
STP
RQ
SB
Request Table (RQT)
STP
System Billing unit Table (SBU)
STP
SC
Subsystem Control Table (SCT)
STP and EXEC
SO
System Dataset Table (SDT)
STP
ST
System Task Table (STT)
EXEC
TB
Task Breakpoint Table (TBPT)
EXEC
Prefix
SM-0045
1.1-2
1.AC
JOB ACCOUNTING TABLE - JAC
The Job Accounting Table, illustrated in figure 1.AC-l, defines the
format of data returned to the user by the F$ACT call.
0
8
16
24
32
40
48
54
63
o
IN
1
TSX
2
TSW
3
TSD
4
lOB
5
lOR
6
USR
7
USR1
8
XMI
9
DMI
10
TID
11
TL
12
////////////////////////////////////////////////////////////////
13
1/////////////////////////////////////////////////////////////1/
14
////////////////////////////////////////////////////////////////
15
SITl
16
SIT2
17
SIT3
18
SIT4
19
SITS
20
ACN
21
ACNl
22
PWD
23
PWDl
1////////
1////////
24
MXM
MIM
25
PFA
PFS
26
TFS
27
BRF
28
I
BSF
Job Accounting Table (JAC)
l.AC-1
CLC
1//////1/////////////////
MRD
JCN
Figure l.AC-l.
SM-0045
OPC
TERM
1////////
Q
8
16
24
32
29
TSB
30
T~
31
TSBU
Figure 1.AC-l.
48
40
Job Accounting Table (JAC)
54
(continued)
Field
Word
Bits
Description
ACJN
o
0-55
Job name
ACTSX
1
0-63
CPU time in cycles
ACTSW
2
0-63
Wait time for CPU
ACTSD
3
0-63
I/O wait time
ACIOB
4
0-63
Disk blocks moved
ACIOR
5
0-63
User I/O request
ACUSR
6
0-63
Characters 1-8 of user number
ACUSRl
7
0-55
Characters 9-15 of user number
ACXMI
8
0-63
Memory integral for execution time
ACDMI
9
0-63
Memory integral for I/O wait time
ACTID
10
0-63
Terminal ID
ACTL
11
0-63
Job time limit
12-14
0-63
Reserved
ACSITl ACSIT5
15-19
0-63
Reserved for site use
ACACN
20
0-63
Account number, characters 1-8
ACACNl
21
0-63
Account number, characters 9-15
ACPWD
22
0-63
Password, characters 1-8
ACPWDI
23
0-63
Password, characters 9-15
SM-0045
1.AC-2
63
Field
--
Word
Bits
Description
ACMXM
24
0-23
Maximum amount of memory used
ACMIM
24
24-47
Minimum amount of memory used
ACOPC
24
48-63
Number of open calls
ACPFA
25
0-23
Permanent file space accessed
ACPFS
25
24-47
Permanent file space saved
ACCLC
25
48-63
Number of close calls
ACTFS
26
0-23
Temporary file space used
ACMRD
26
24-47
Number of memory-resident data sets
ACBRF
27
0-23
Number of blocks from the front end
ACBSF
27
24-47
Number of blocks sent to the front end
ACTERM
27
48-63
Termination status
ACJCN
28
0-55
Job class
ACPRI
28
56-63
Job priority
ACTSB
29
0-63
Time submitted
ACTWJ
30
0-63
Time waiting for a JXT
ACTSBU
31
0-63
Total system billing units used
SM-0045
1.AC-3
1.AP
ANY PACKET TABLE - APT
This table can reside in either STP or EXEC. It is used to hold data passed to
and from an lOP Subsystem. The format of anyone packet is dependent on its
source and destination IDs. The general form of an APT required by the lOP
Subsystem driver is as follows:
o
16
DONE 0
DID
32
SID
1
63
RSV
1
~~jj;1EE////////////////////////////////////////////////////////
2
////////////////////////////////////////////////////////////////
3
////////////////////////////////////////////////////////////////
4
////////////////////////////////////////////////////////////////
5
////////////////////////////////////////////////////////////////
Figure 1.AP-l.
General form of packet table (Aprr)
Field
Word
Bits
Description
APDlD
0
0-15
Destination ID
APSID
0
16-31
Source ID
APRSV
0
32-63
Reserved for driver use
APDONE
1
0
Output complete flag
APFREE
1
1
Free packet after output flag
o
DONE 0
16
~
DID
SID
1
63
32
RSV
1
~I~//FREE///////////////////////////////I
2
3
4
5
///////////////////////////////////////1
FCT
DA
CYL
HD
1
SEC
OFF
SM-0045
EQT
STS
1// / /1,"","1
WL
MOS
RAC
Figure 1.AP-2.
PID
CHN
'"'--PN
RES
Disk Request Packet (A-Packet)
1.AP-l
Field
Word
Bits
Description
APDID
o
0~15
Destination ID
APSID
o
16-31
Source ID
APRSV
o
32-63
Reserved for driver use
APDONE
1
o
Output complete flag
APFREE
1
1
Free packet after output flag
APPID
1
40-63
Packet ID (EXEC relative)
APEQT
2
40-63
EQT table address (STP relative)
APDA
3
0-31
Data buffer address
APFCT
3
32-39
Function code
APSTS
3
40-47
Status
APPN
3
53-54
Processor Numbler
APCHN
3
55-63
Channel Numbler
APCYL
4
0-10
Cylinder address
APHD
4
11-15
Head address
APSEC
4
16-22
Sector address
APOFF
4
23-31
Word offset
APWL
4
32-63
Transfer word length
APMOS
5
0-31
MOS address
APRAC
5
32-47
Sector read ahead count
APRES
5
48-63
Reserved for I/O Processor
SM-0045
1.AP-2
1.AU
ACTIVE USER TABLE - AUT
The Active User Table is an STP-resident table used during interactive
communication. An entry is made in the AUT when the user logs on. The
entry is released when user processing is finished and the user logs off.
HEADER
o
8
24
32
40
48
\///////////////////////1
16
o
TN
54
NE
63
54
PN
63
TABLE
8
24
16
I
ERC
3
~F 1/////////////1
MML
OQC
5
IQC
6
PASS
SID
II
9
ICT
.TLIM
NXST~
8
ST
TID
4
7
\
USER.
OSg;", . ISYP
MN 1///1
48
40
SOT
CF
2
32
we
MT
SMID
RMES
Figure 1.AU-l.
Active User Table (AUT)
Field
Word
Bits
Description
AUTN
0
0-23
Table name
AUNE
0
48-63
Number of active entries
AUOFF
0
0
Logged off terminal flag
AUBYE
0
1
Job terminated while logged off
AUCSP
0
2
CSP loaded
AUABT
0
3
Abort flag
AUCCF
0
4
Concentrator relogged flag
AUIMR
0
5
Message received flag
SM-0045
1.AU-l
Field
Word
Bits
Description
AULSF
0
6-7
Logoff special function field
AUERC
0
8-15
Error code
AUSDT
0
16-39
SDT for job
AUST
0
40-47
Terminal status
AUPN
0
48-63
Process number
AUUSER
1
0-63
User name
AUTID
2
0-63
Terminal ID
AUMN
3
0-3
Message number
AUMML
3
8-19
Maximum message length
AUOSUP
3
20
Output suspended flag (cleared by SCP)
AUISUP
3
21
Input suspended flag (cleared by SCP)
AUSF
3
22-25
Special function field
AUICT
3
40-63
Interactive console entry pointer
AUOQC
4
0-63
Output queue control word
4
4
0-15
32-47
48-63
5
0-63
5
5
5
0-15
32-47
48-63
AUPASS
6
0-63
Password
AUTLIM
7
0-63
Time of last input message
AUSID
8
0-15
Front-end ID
AUNXST
8
16-19
Next state
AUWC
8
20-31
Word count
AUMT
8
32-39
Sent message type
AUNOM
AUOMQT
AUOMQH
AUIQC
AUNIM
AUIMQT
AUIMQH
SM-0045
4
Number of output messages
Output message queue tail
Output message queue head
Input queue control word
Number of input messages
Input message queue tail
Input message queue head
l.AU-2
Field
Word
Bits
Description
AUSMID
8
40-63
Sent message ID
AURMES
9
0-63
Received message
9
9
9
0-11
12-15
16-19
20-23
24-31
32-35
36
37
52-63
AURPN
AURMN
AURST
AUREC
AURMT
AURSF
AURMOD
AURCHN
AURWC
SM-0045
9
9
9
9
9
9
Received
Received
Received
Received
Received
Received
Received
Received
Received
1.AU-3
process number
message number
status
error code
message type
special function
mode
chain flag
word count
1.BA
BINARY AUDIT TABLE - BAT
When the binary output parameter is specified on the AUDIT control
statement, the Permanent Dataset Manager creates a 36-word BAT record
for each permanent dataset meeting control statement requirements and
having a user number that matches the user number for the job.
0
8
16
24
0
32
PDNl
1
PDN2
ED
2
3
ID
4
SZ
5
RT
6
ACC
7
CRT
8
CRD
9
CRR
10
TDM
11
TDD
12
TDH
13
ACT
14
ACD
15
ACH
16
LDV
17
MFT
18
MFD
19
MFH
Figure I.BA-I.
SM-0045
40
Binary Audit Table (BAT)
I.BA-l
48
56
63
Field
Word
Bits
Descr iption
BAPDNI
o
0-63
Permanent Dataset Name; characters 1-8
left justified with blank fIll
BAPDN2
1
0-63
Permanent Dataset Name; characters
9-15 left justified with blank fill
BAED
2
0-63
Edition number; 1-4095 represented in
binary
BAlD
3
0-63
User 10, left justified with blank fill
BASZ
4
0-63
Dataset size (in words) represented in
binary
BART
5
0-63
Retention period; 1-4095 represented
in binary
BAACC
6
0-63
Number of accesses represented in
binary
BACRT
7
0-63
Creation time in cycles
BACRD
8
0-63
Creation date as mm/dd/yy
BACRH
9
0-63
Creation time as hh:mm:ss
BATDM
10
0-63
Time of last dump in cycles
BATDD
11
0-63
Date of last dump as mm/dd/yy
BATDH
12
0-63
Time of last dump as hh:rnrn:ss
BAACT
13
0-63
Time of last access in cycles
BAACD
14
0-63
Date of last access as mm/dd/yy
BAACH
15
0-63
Time of last access as hh:mm:ss
BALDV
16
0-63
Logical device name
BAMFT
17
0-63
Time of last modification in cycles
BAMFO
18
0-63
Date of last modification as mm/dd/yy
BAMFH
19
0-63
Time of last modification as hh:mm:ss
SM-0045
1.BA-2
1.BG
BEGIN CODE EXECUTION TABLE - BGN
The BGN table specifies necessary parameters to begin the execution of
code that has been loaded into the user area by CSP.
o
8
PSF~IIIIIIIIIIIIIIII
24
32
PRGL
40
I
48
56
~;;;~PIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
Figure 1.BG-l.
Field
-
Word
PRWC
BGPSF
ENT
Begin Code Execution Table (BGN)
Bits
Description
0
0
Preset value flag
BGPRGL
0
16-39
Total program length including blank
common
BGPRWC
0
40-63
Program word count
BGBP
2
0
Breakpoint flag
BGENT
2
40-63
Program entry point address
SM-0045
63
~IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
1
2
16
1.BG-l
1.BP
BUFFER POOL TABLE - BPT
The Buffer Pool Table is resident in the high range of memory and is used
for buffer pool management in connection with interactive communication.
o
8
16
24
-2
-1
32
TXT
OFF
SZ
Figure 1.BP-l.
40
LBID
48
56
FBID
Buffer Pool Table (BPT)
Field
Word
Bits
Description
BPTXT
-2
0-63
Beginning of text
BPSZ
-1
0-15
Message size
BPOFF
-1
16-31
Offset to unmoved portion of message
BPLBID
-1
32-47
Buffer ID for continuation of message
BPFBID
-1
48-63
Next message buffer ID
SM-0045
1.BP-l
63
1.CB
CHANNEL BUFFER TABLE - CBT
This EXEC-resident table is used for working storage by the disk driver.
There is one entry for each disk channel. The three forms of the CBT
entries are illustrated in figures 1.CB-l through 1.CB-3.
5
o
8
16
24
32
40
48
56
BO
1111111111111111111111111111111111111111
PUT
1111111111111111
DNT
I
MEM
1111111111111111111111111111111111/1/111
OCT
111111111111111/11111/11111111111111/111
TK
11111111111111//1111111111111111 ICH It I
CYL
CNT
11111111//IIIIIIIIIIIIIIIIIIIIIIIII/luTIIIIIIIII
6
IIT~GNIIIIIIIIIIIIII
o
1
2
3
4
TD~(t(i;////////////1
Figure 1.CB-l.
TPB
DSP
I
63
SC
EQT
I111111111111111111111111
Disk 1/0 form of Channel Buffer Table (CBT)
Field
Word
Bits
Description
CBBO
o
40-63
Subroutine return address;
CBDNT
1
16-39
DNT address;
CBPUT
1
40-63
Active physical unit table; first form
CBMEM
2
40-63
Current transfer address;
CBOCT
3
40-63
OCT address relative to EXEC; first
form
CBICH
4
32-37
Input channel number
4
38-39
Unit number
CBCYL
4
40-51
Cylinder
CBTK
4
52-57
Track
CBSC
4
58-63
Sector
SM-0045
1.CB-l
Field
Word
Bits
Description
CBCNT
5
48-63
Sector count
CBTPB
6
24-39
Task parameter block address
CBEQT
6
40-63
Equipment Table address relative to
EXEC
CBTD
7
0
Transfer direction;
1 = write.
CBTRY
7
1
Retry flag;
CBMGN
7
2
Clear margin flag;
CBDSP
7
16-39
DSP address
o
o
8
16
24
32
40
48
56
63
////////////////////////////////////////////////////////////////
1
////////////////////////////////////////////////////////////////
2
////////////////////////////////////////////////////////////////
3
////////////////////////////////////////////////////////////////
4
////////////////////////////////////////////////////////////////
5
////////////////////////////////////////////////////////////////
6
///////////////////////////////////////1
SR
~//////////////////////////////////////////////////////////////
Figure 1.CB-2.
Normal and error pseudo channel form of
Channel Buffer Table (CBT)
Field
Word
Bits
Description
CBSR
6
40-63
Status register
CBN
7
0
Normal pseudo channel;
CBE
7
1
Error pseudo channel:
SM-0045
1.CB-2
o
16
8
32
24
o
JST
1
JLT
2
TSX
3
TLTU
40
48
56
63
4
////////////////////////////////////////////////////////////////
5
//////////////////////////1/////////1///////////////////////////
6
//2FI//////////////////////////////////1
SR
OA~I~//////////////////////////////////I///////////////////////////
Figure 1.CB-3.
Real-time pseudo channel form of Channel Buffer Table (CBT)
Field
Word
Bits
Description
CBJST
o
0-63
Job starting time in cycles;
CBJLT
1
0-63
Job time limit in cycles;
CB'l'SX
2
0-63
User execution time at start of
interval;
CBTLTU
3
0-63
Time of last total time update;
CBSR
6
40-63
Status register
CBOA
7
o
Output active (redefinition for I/O
Subsystem communication channel)
CBIF
7
1
Initialization flag
SM-0045
1.CB-3
1.CC
CHAIN CONTROL WORD - CC
Intertask communication requires chain control words in the format
defined in figure 1.CC-l.
o
o
8
16
24
rfL/QL
TM/QM
32
40
HEAD
Figure 1.CC-l.
48
56
63
TAIL
Chain Control Word
Field
Word
Bits
Description
CCTM
o
0-7
Maximum number of items to be queued to
a particular task
CCQM
o
0-7
Maximum number of items to be queued
from one task to another
CCTL
o
8-15
Number of items queued to a particular
task
CCQL
o
8-15
Number of items to be queued from one
task to another
CCHEAD
o
16-39
Address of first item on the chain
CCTAIL
o
40-63
Address of last item on the chain
SM-0045
1.CC-l
1.CH
CHANNEL TABLE - CHT
The Channel Table resides in EXEC memory and contains information for use
by the interrupt handlers. There is one entry for each channel, physical
or pseudo. Refer to figure 1.CH-l.
HEADER
o
8
o
16
TN
24
32
40
48
56
63
1////////////////////////////////////////
EN'fRY
o
TPB
CTA
Figure 1.CH-l.
IHA
Channel Table (CHT)
HEADER
Field
---
Word
Bits
Description
0
0-23
Table name; "CHT" in ASCII
Field
Word
Bits
Description
CHTPB
0
0-15
Address of task parameter word
CHCTA
0
16-39
Control table address
CHlHA
0
40-63
Interrupt handler address
CHTN
ENTRY
SM-0045
1.CH-l
1.CI
CHAIN ITEM - CI
Any item queued using the STP common routines CHAIN and UNCHAIN must
reserve the first two words of the item to be used by the common routines
as shown in figure 1.CI-l.
o
8
16
EX~IIIIIIIIIIIIIIII
1
24
32
40
48
56
I
BL
1111111111111111111111111111111111111111
CC
FL
Figure I.CI-I.
63
Chain Item
Field
Word
Bits
Description
CIEX
0
0
This bit, if set, indicates that the
item is in execution.
CIFL
0
16-39
Forward link; address of next item on
the chain
CIBL
0
40-63
Backward link; address of the preceding
item on the chain
CICC
1
40-63
Address of the chain control word for
this item
SM-0045
I.CI-I
1.CS
CLASS STRUCTURE DEFINITION - CSD
The job class structure definition is contained in the CSD.
The CSD header, which contains general information about the structure,
precedes the class maps. One CSD class map exists for each class defined
in the structure. Class maps appear in descending rank order.
The variable length characteristic expressions follow the class maps, and
each class contains a pointer to its expression. The CSD class
expressions are variable length.
HEADER
0
8
16
32
24
40
48
56
63
SDT
0
1
AOF,
1////////
,SNM
2
//////////////1
fl
SLI
NCL
3
///////////////////////////////1
APL
NCW
Figure 1.CS-1.
SCUM
Class Structure Definition (CSD) header
Field
Word
Bits
Description
CSSDT
o
0-63
Date/time of last rollout
CSSNM
1
0-55
Class structure name
CSSCUM
2
15-30
Structure cumulative JXTs reserved
CSAOF
2
31
If 1, all classes off
CSSLI
2
32-47
LIMIT default
CSSNCL
2
48-63
Number of classes defined in structure
CSAPL
3
32-47
Number of pool JXTs allocated
CSSNCW
3
48-63
Number of classes waiting for JXTs
SM-0045
1.CS-l
CLASS MAP
0
8
16
24
0
1
P
2
48
ACT
~
OFF
Figure 1.CS-2.
56
63
I11111111
COF
RCUM
RES
MAX
40
32
CNM
WTG
I111111111111111
CSD map
Field
Word
Bits
Description
CSCNM
o
0-55
Class name
CSP
1
0-7
Class assigned priority shifted left
four bits; ignored if CSP=3778
CSRES
1
8-23
JXTs reserved by class
CSRCUM
1
24-39
JXTs reserved by all classes of a
higher rank
CSCOF
1
40-63
Class offset
CSMAX
2
0-15
Class maximum
CSACT
2
16-31
Actual number of JXTs allocated to this
class
CSOFF
2
32
If 1, the class is off; if 0, the class
is on
2
33-48
Number of jobs waiting for JXTs
CLASS EXPRESSIONS
o
o
8
16
24
32
EXL
CEXL
40
EXP
1
CSCEXL+l
Figure 1.CS-3.
SM-0045
CSD expressions
1.CS-2
48
56
63
I11111111111111
1" ie ld
Word
Bits
CSCEXL
0
0-23
CSEXL
0
24-49
CSEXP
1 to
CSCEXL+l
0-63
DescriEtion
Length in words of cracked expression
Length in \VOrds of printable expression
Cracked class expression
LAST WORD
O______~8______~l~6____~2~4~__~3~2~____4~0~____4_8~____5_6_____6_3
I@CSDMAX-l
SLW
Figure 1.CS-4. CSD last word
Field
CSSLW
SM-0045
Word
I@CSDMAX-l
Bits
0-63
Description
Date/time of last rollout
1.CS-3
1.CX
CHANNEL EXTENSION TABLE - CXT
This table is EXEC-resident and is used to interface the front-end driver
to the lOP driver.
HEADER
o
24
o
TN
63
1////////////////////////////////////////
ENTRY
o
7
SND~ ~I CHO I
DID
16
32
CNT
40
48
TPB
I
LIT
I
SID
63
CHN
I
ROY
2
////////////////////////////////////////////////////////////////
3 JIT//RsND////////////////////////1
CNT
1////////////////
1
SGZ
4
OLCP
ILCP
5
OSEG
ISEG
6
OLTP
ILTP
Figure 1.CX-l.
Channel Extension Table format (CXT)
HEADER
Field
-
Word
Bits
Description
CXTN
o
0-23
Table name
Field
Word
Bits
Description
CCXSND
o
o
Send received from lOP flag
CXRDY
o
1
Address ready to send flag
ENTRY
SM-0045
l.CX-l
Field
Word
Bits
Description
CXCHO
o
2-6
Channel ordinal
CXCNT
o
7-15
Message number of last address request
cxrrPB
o
16-39
Task parameter block address
CXLIT
o
40-63
LIT address (EXEC-resident)
CXDID
1
0-15
Destination ID
CXSID
1
16-31
Source ID
CXCHN
1
32-39
Message channel ordinal
CXCNT
1
40-47
Message count (0-256)
CXRSND
3
o
Resent address request flag
CXSGZ
3
32-63
Segment size
CXOLCP
4
0-31
Output LCP address (EXEC relative)
CXILCP
4
32-63
Input LCP address (EXEC relative)
CXOSEG
5
0-31
Output segment address (EXEC relative)
CXISEG
5
32-63
Input segment address (EXEC relative)
CXOLTP
6
0-31
Output LTP address (EXEC relative)
CXILTP
6
32-63
Input LTP address (EXEC relative)
SM-0045
l.CX-2
1.OA
DATASET ALLOCATION TABLE - OAT
A OAT exists for each active dataset in the system. A DAT defines the
mass storage logical location of a dataset. It specifies the logical
devices and the portions of each device.
The OAT header contains general dataset information.
The OAT partition header contains general information concerning a
particular partition of the OAT. A partition represents a portion of a
dataset resident on a single logical device. If the dataset is a
permanent dataset, the DAT may be used by multiple users.
Each allocation index in a partition is a bit number in the respective
Device Reservation Table (DRT).
The OAT is composed of as many 16-word OAT pages as necessary to represent
the mass storage occupied by the dataset. Word 0 of a page contains a
24-bit address of the continuation of the DAT if more pages are
necessary. Additional OAT pages continue from the point at which the last
OAT left off.
Figure l.DA-1 illustrates the OAT.
SPACE HEADER
0
8
0
16
TN
24
I
1
32
WCT
40
48
I
56
PA
MAP
Figure 1.DA-1.
OAT space header
Field
Word
Bits
Description
DATN
0
0-23
OAT Table name
DAWCT
0
24-39
DAT space map length in words
OAPA
0
40-63
Number of OAT pages available
DAMAP
1
0-63
Beginning of OAT page map
SM-0045
1.0A-l
63
PAGE HEADER
0
0
PN
8
16
24
32
1///////////////////////1 JORD
ENTRY HEADER
0
1
8
16
DSC
2
CA
24
I
32
AS
40
56
63
56
63
OAT
I
40
1///////1
Figure l.OA-2.
48
48
PDS
DSZ
OAT page header/entry header
Field
Word
Bits
Description
DAPN
0
0-7
Page number
DAJORD
0
32-39
JXT ordinal; set to 0 if the OAT is in
STP, set to the JXT ordinal if the OAT
is in the JTA.
DADAT
o
40-63
Next page address; set to 0 if no
continuation page exists. If the field
is greater than 0, the OAT resides in
STP and the field contains the
STP-relative DAT address. If the field
is less than 0, then the OAT resides in
the JTA and the DAT address is equal to
the JTA address minus the value of the
field DADAT.
DADSC
1
0-27
DSC pointer (only if permanent dataset)
DAAS
1
28-39
Allocation style (contiguous AUs per AI)
DAPDS
1
40-63
Permanent dataset table entry address
(only if permanent dataset)
DACA
2
0-23
Pointer to parcel for next AI
DADSZ
2
32-63
Dataset size in words
SM-0045
l.DA-2
OAT PARTITION HEADER
a
16
8
24
a
1
1111111111111111
32
LDV
48
NPA
BPB
Figure 1.OA-3.
40
56
NAI
OAT partition header
Field
Word
Bits
Description
DALDV
a
0-63
Logical device name
a
0-15
Allocation index
DABPB
1
16-31
Blocks per bit
DANPA
1
32-47
Next partition address (relative \\Ord
address)
DANAI
1
48-63
Number of Als in partition
DAAI
SM-0045
1.OA-3
63
1.DC
DATASET CATALOG - DSC
The DSC is a disk resident table. It is divided into 512-word pages with
each page consisting of a block control word, a 7-word header, and eight
63-word entries.
There are two types of pages, hash pages and overflow pages. The PDN is
hashed to determine the hash page number to be put into the DSC entry.
If that hash page is full, the entry is placed in the sequential overflow
page area.
o
8
16
40
24
32
Block Control Word
48
Header
7
DSC entries
511
Figure 1.DC-l.
SM-0045
Dataset Catalog (DSC) page
1.DC-l
56
63
DSC PAGE HEADER
Each DSC page has a header as shown in figure 1.OC-2.
o
8
16
24
32
40
48
56
63
o~ ~FIIIII/IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
-
1 ~
.
6
//////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////
Figure 1.DC-2.
DSC page header
Field
Word
Bits
Description
DCOV
1
o
Page overflow has occurred
DCPF
1
1
Page is currently full
SM-0045
1.OC-2
DSC ENTRY
A DSC for a permanent dataset may occupy as many DSC entries as necessary
to contain the OAT for the dataset. Subsequent DSC entries for the same
permanent dataset contain only continuations of the OAT.
8
OCRS
C
16
24
32
40
48
56
~-k I M/i'QII I I I I I II II II I I II II II I I I I II I I I I II I I I I I I I I I I I I II II I I
DWN~~R
IDA
II
1//S707 I
ON
2
63
PDN
1////////
3
4
RDP
5
WTP
6
7
MNP
////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////
EXO~I/////////////////////////////////////////////////////1
12
ID
13
USR
INIT~ WAIT JA
NRR~~I
1////////
I~I
OJSQ
16
FM
TXL
17
SID
SF
ACS
FL
TL
21
CRT
22
ACT
23
TDM
24
MFT
25
27
SYS
/'
M
JSP
1////////
CL
1////////
OLM
28
ACN
29
ACN1
SM-0045
PR
JCN
JCR
Figure 1.DC-3.
JSQ
DC
19
ED
1////////
DID
TID
26
RT
OJB
18
20
QDT
Dataset Catalog (DSC) Table entry
1.DC-3
RJST
o
16
8
32
24
40
48
56
63
30
//////////1///////1////////1///////////////////////1////////////
31
ONS
32
OAT
47
62
OAT
/1/////1
Figure 1.DC-3.
DSC
FPE
Dataset Catalog (DSC) Table entry (continued)
Field
Word
Bits
pescr iption
DCC
o
o
Continuation flag (set if this is a
continuation entry)
DCDWN
o
1
Down flag. Set if OAT contains at
least one reference to a device whose
EQT entry declares the device
unavailable (EQNA=l).
DCCRS
o
2
Cross-allocated flag. Set if OAT
contains at least one reference to an
AI on any device ~ich is either (1)
flawed, or (2) mentioned in the DAT for
some other permanent dataset, the
Dataset Catalog, or the reserved system
dump area.
DCERR
o
3
Catastrophic error flag. Set if
Startup is unable to recover the
dataset due to errors in the DSC entry
and the installation or operator
selected option was RETAIN.
nelDA
o
4
Inconsistent disk allocation
DCIQI
o
5
Invalid QDT index
DCS
o
61
Saved flag (set if SAVE entry)
DCO
o
62
Output flag (set if output dataset)
DCI
o
63
Input flag (set if input dataset)
DC ON
1
0-55
Dataset name (spooled datasets only)
SM-0045
1.OC-4
Field
Word
Bits
Description
DCPDN
2
0-63
Permanent dataset name, characters
DCPDN2
3
0-55
Permanent dataset name, characters 9-15
DCRDP
4
0-63
Read permission control word (saved
datasets)
DCWI'P
5
0-63
Write permission control word (saved
datasets)
DCMNP
6
0-63
Maintenance permission control word
(saved datasets)
OCEXO
11
o
Execute-only status flag
DCQDT
11
55-63
Mu1titype flag/QDT entry index (saved
and spooled)
DCID
12
0-63
User 10 (saved dataset)
DCUSR
13
0-63
User number, characters 1-8
DCUSR2
14
0-55
User number, characters 9-15
DCNRR
15
o
Job rerun flag.
rerun.
DCINIT
15
1
Job initiation flag.
been initiated.
DCWAIT
15
2
WAIT flag for disposed dataset
DCIA
15
3
Interactive spool flag
DCOJSQ
15
5-20
originating job sequence number
DCTXL
15
21-23
Text length in blocks (a block is equal
to one DSC OAT page)
DCFM
15
24-39
Format designator (output datasets)
DCRT
15
40-51
Retention period (0-4095 days)
OCED
15
52-63
Edition number (1-4095) (saved datasets)
DCOJB
16
0-55
Originating job name
SM-0045
1.DC-5
1-8
Set if job cannot be
Set if job has
Field
Word
Bits
Descr iption
DCSID
17
0-15
Source ID 2 characters
DCDID
17
16-31
Destination ID 2 characters
DCDC
17
32-47
Disposition code:
DCIN=IN
DCST=ST
DCPR=PR
DCPT=PT
DCPU=PU
DCMT=MT
Job dataset
Staged permanent dataset
Print dataset
Plot dataset
Punch dataset
Magnetic tape dataset
DCJSQ
17
48-63
Job sequence number
DCTID
18
0-63
Terminal ID
DCSF
19
0-63
Special forms
DCACS
20
0-15
Number of accesses (saved datasets)
DCFL
20
16-31
Field length/512 (input datasets)
DCTL
20
32-55
Time limit (input datasets)
DCPR
20
56-63
Priority (input datasets)
DCCRT
21
0-63
Creation time (cycles)
DCACT
22
0-63
Time of last access (cycles)
DCTDM
23
0-63
Time of last dump (cycles)
DCMFT
24
0-63
Time of last modification (cycles)
DCJCN
25
0-55
Job class name
DCCL
26
0-55
CL parameter from JOB statement
DCSYS
27
1
Flag:
DCJSP
27
2-9
priority, from JOB statement
DCJCR
27
10-25
Job class rank
DCOLM
27
26-49
Size of $OUT in 512-word blocks
SM-0045
1.DC-6
system job if set
Field
Word
Bits
Description
DCRJST
27
50-63
JOB statement error
DCACN
28
0-63
Account number (characters 1-8)
DCACNI
29
0-63
Account number (characters 9-1S)
DCDNS
31
0-63
Reserved for installation
DCDAT
32-46
47-61
0-63
0-63
A IS-word DAT page or optional text
A IS-word DAT page
DCFPE
DCFPP
DCFEN
62
62
62
8-35
8-31
First DSC page/entry for the dataset:
Page number of first DSC entry
Entry number of first DSC for the
dataset
DCDSC
DCDCP
DCDCE
62
62
62
36-63
SM-0045
32-35
36-59
60-63
Next DSC entry for continuation:
Page number of DSC continuation
Entry number of DSC continuation
1.DC-7
1.DD
DATASET DEFINITION LIST - DOL
A Dataset Definition List in the user field must accompany any create DNT (F$DNT)
request.
o
8
16
o
1
40
32
24
UD~TAT
LDV
3
IMRI/IA/TRANIIII
._._--_
..-
DNT
4
TPLIITPF/I TPN I
TPV
~~~~J-I
63
1111/1111
DN
RDM~1! ~;I----I;;~/IIIIIIIIIII/l
TPD
56
48
TPB
TPR
TPF
Figure 1.00-1.
SZ
I11111111I
111111/11
k.k~ ft:;. fliPH
~?FTPC
TPM ""
TP2~TPP
BFZ (BSZ)
DC
LM - - -
Dataset Definition List (DOL)
Field
Word
Bits
DDDN
o
0-55
Dataset name
DDLDV
1
0-63
Logical device name
DDRDM
2
o
Random dataset flag:
o Sequential
1
DDUDS
2
1
Random
Undefined dataset structure:
o COS blocked dataset structure
1
Undefined structure
DDNFE
2
2
Return error if dataset does not
exist. Register SO returned non-zero
if DNT does not exist; no DNT is
created.
DDSTAT
2
3
Request dataset statistics; ignored
unless DDNFR=l (see DDDNT)
DDMR
2
4
Dataset is to be memory resident
OOIA
2
5
Interactive type dataset
DDTRAN
2
6
Transparent mode for interactive
dataset
SM-0045
1.DO-l
Field
Word
Bits
Description
DDBFI
2
7-15
Blank field indicator for character I/O
0008
< 400 8
= 400 8
400 8
>
BFI=I@BFI
BFI=user specified ASCII
character
BFI=OOO
Blank compression disabled
DDTP
2
16-17
Tape dataset (online/staged)
DOTCS
2
18-19
Tape dataset character set
DDSZ
2
40-63
Dataset size in 512-word blocks
DDON'r
3
16-39
Address of DNT image returned by F$DNT
When DDNFE=l and DDSTAT=l
DDBFZ
3
49-63
Buffer size in 512-word blocks
DOBSZ
3
49-63
Alternate name for DOBFZ to match
$SYSTXT name
DD'fPN
4
10-15
Tape noise block size in bytes
DDTPV
4
16-39
Pointer to Label Definition Table
DDDC
4
48-63
Disposition code:
OCIN=IN
DCST=ST
DCSC=SC
DCPR=PR
OCPT=PT
DCPU=PU
DCMT=MT
Job dataset
Staged permanent dataset
Scratch dataset
Print dataset
Plot dataset
Punch dataset
Magnetic tape dataset
DD'rPD
5
0-1
Tape density
DOTPL
5
2-4
Tape label type
DDTPF
5
5-6
Tape format
DDTPR
5
7-14
Tape recovery options
DDTPB
5
15-32
Tape maximum block size (in bytes)
DDTPC
5
33
Tape cataloged dataset
DDTPM
5
34
Tape online maintenance access
SM-0045
1.00-2
Field
Word
Bits
Description
DDTP2
5
35
Tape second device request
DDTPP
5
36-38
Tape parallel device count
DD'1'PH
5
39
Tape hold device assignment
DDLM
5
40-63
Dataset size limit in 512-word blocks
SM-0045
1.DD-3
1.DE
DEVICE ERROR TABLE - DET
This STP-resident table is used for building messages for the system log.
a
8
16
24
32
a
JN
1
DEV
2
DN
3
CP
4
IR
5
STS
6
ASTS
Figure l.DE-l.
40
48
56
I11111111
I11111111
Disk Error Table (DET)
Field
Word
Bits
Description
DEJN
a
0-55
Job name
DEDEV
1
0-63
Logical device name
DEDN
2
0-55
Dataset name
DECP
3
0-63
Device current physical position
DEIR
4
0-63
Device initial logical request
DESTS
5
0-63
Equipment status
DEASTS
6
0-63
Auxiliary status
SM-0045
1.DE-l
63
l.DN
DATASET NAME TABLE - DNT
The DNT in the Job Table Area (JTA) contains an entry for each dataset of
a given job. W@JTDNT is the beginning DNT entry address. Figure l.DN-l
illustrates a DNT entry.
(f;
o
-2
-I
MPST§
8
16
24
----1//////////////1
MPID§
---
32
40
48
24
32
40
48
TP PRW
ON
///////////////1
4
II DTM
I JORD
6
TPD
CIO
---
5
OAT
AS
SZ
---------------------------DSP
LDV
I
lOR
BFZ
lOB
LBN
7
PBS
8
///////1
I
LM
9
///////////////////////////////////////1
POD
10
1/////////////////////1
I TPN
TPB
TPL~~--------------
~ I~ 11'!.t!
QDT
DCZ
TPS
T,PC
63
BUF
1///1
BFI
1////1
Flags
56
1////////
SBK
ACS
63
JTDBL§
DC
PDS~I
56
TPR
TPDS
I TPDLI
TPV
TPDL2 I TPDL3 I TPDL4
TPF~~
Figure 1.DN-1.
Dataset Name Table (DNT) entry
Field
---
Word
Bits
Description
MPS~
-2
o
Status of memory area:
o Available
1 In use
MPloS
-2
16-39
Memory pool identification
07070707
-2
40-63
JTA dynamic memory
Size of the memory area
§ Fields that exist only when the DNT is in the dynamic area of the JTA.
They are used for dynamic memory allocation ana DNT linkage.
SM-0045
1.DN-l
Field
Word
Bits
Description
JTDBLS
-1
16-39
DNT backward link
JrrDFL§
-1
40-63
DNT forward link
DNDN
0
0-55
Dataset name
DNAIO
1
0
Active I/O, set if outstanding
DNOC
1
1-2
Open/closed status:
00
10
01
11
DNP
1
3
Type of processing; used by Disk Queue
Manager:
o
1
DNRDM
1
4
o
1
5
Read
Write
Random dataset flag:
1
DNUDS
Closed
Open for input
Open for output
Open for I/O
Sequential
Random
Dataset structure:
o
1
COS blocked dataset
Unblocked structure
DNIN
1
6
Subdataset; used for $IN
DNMEM
1
8
Dataset is memory resident
DNIA
1
9
Interactive type dataset
DNTRAN
1
10
Transparent mode for interactive
dataset
DNTP
DNEND
1
1
11-12
Tape dataset (online/staged)
Write end of dataset flag. Used in
conjunction with the partial block
size DNPBS. DNEND and DNPBS are set
by DQM When DPEND is set. DNEND and
DNPBS may also be set by a task
Which does not use a DSP When
calling DQM
11
S Fields that exist only When the DNT is in the dynamic area of the JTA.
They are used for dynamic memory allocation and DNT linkage.
They
l-DN-2
Field
Word
Bits
Description
DNSDR
1
14
Dataset resides in the SDR
DNPRW
1
15
previous operation read/write:
o
1
DNDC
1
16-31
previous operation read
previous operation write
Disposition code (two characters) :
DCIN=IN
DCST=ST
DCSC=SC
DCPR=PR
DCPU=PU
DCPT=PT
DCMT=MT
Job dataset
Staged permanent dataset
Scratch dataset
Print dataset
Punch dataset
plot dataset
Magnetic tape dataset
DNJORD
1
32-39
JXT ordinal if the DNT is in the job's
JTA; 0 if the DNT resides in STP.
DNDAT
1
40-63
Dataset allocation table address:
=0
>0
<0
Not DAT assigned
DAT in STP
OAT in job's JTA
DNNBK
2
0-15
Number of blocks to be read or
written; number of words in last block
to be written if (ONENO)=l
DNSBK
2
16-39
Starting block number
DNBUF
2
40-63
I/O buffer address
DNPDS
3
o
permanent dataset flag
DNACS
3
1-11
Dataset access flags:
3
3
3
3
1
10
11
DNDTM
3
13-lS
Index to Task I/O save area
DNBFI
3
19-27
Blank field indicator for character I/O
DNEXO
DNMNP
DNWTP
DNRDP
9
Execute-only
Maintenance permission flag
write permission flag
Read permission flag
OOOs
400 8
400 8
400 S
SM-0045
1.0N-3
BFI=I@BFI
BFI=user specified ASCII
BFI=OOO
Blank compression disabled
Field
Word
Bits
Description
DNAS
3
32-39
Allocation style (tracks per AI)
DNSZ
3
40-63
Dataset size (in 5l2-word blocks)
DNRCL
4
o
Recall flag from DSP
DNRLS
4
1
Release flag
DN'rIO
4
2
Task I/O recall flag;
address
DNJTF
4
3
JTA dataset flag; if (DNJTF) =1, buffer
is in the JTA
DNIOU
4
4
User I/O flag; 1 indicates the DSP or
buffer for the current I/O request are
in the job field (below user HLM).
DNBIO
4
6
Buffered I/O request flag
DNJIO
4
7
Job in recall for this request
DNDPS
4
8
Dispose flag
DNMRCL
4
9
Memory recall flag; 1 if waiting for
JTA memoory expansion.
DNDFR
4
10
Deferred disposition flag
DNCIO
4
16-39
Return address for task I/O
DNDSP
4
40-63
DSP address
DNLDV
5
0-63
Logical device name
DNIOR
6
0-21
I/O requests issued to DQM
DNIOB
6
22-48
Blocks transferred
DNBFZ
6
49-63
Dataset buffer size in 5l2-word blocks
DNPBS
7
0-8
Partial block size in words
DNQDT
7
31-39
Mu1titype fla9/QDT entry index
DNLBN
7
40-63
Number of last block written
DNDCZ
8
8-39
Dataset catalog size in words
SM-0045
1.DN-4
(DNCIO=recall)
Field
Bits
Description
DNLM
8
40-63
Dataset size limit in S12-word blocKS
DNPDD
9
40-63
JTA relative address of the POD for a
deferred disposition
DNTPS
10
0-lS
Online tape status
DNTPN
10
16-21
Tape noise blocK size in bytes
DNTPB
10
22-39
Tape max blocK size in bytes
DNTPV
10
40-63
Tape pointer to system label area
DNTPD
11
0-1
Tape density
DNTPL
11
2-4
Tape label type
DN'rPF
11
S-6
Tape format
DNTPC
11
7
Tape cataloged dataset
ONTPR
11
8-23
Tape recovery options
DN'fPM
ONTP2
DNTPP
DNTPH
DNTCS
11
11
11
11
16
17
Tape
Tape
Tape
Tape
Tape
online maintenance access
and device request
parallel device count
hold device assignment
dataset character set
11
18-20
21
22-23
DNTPOS
11
24-31
Tape parallel device status
ONTPD 1
11
32-39
Tape device number (stream 1)
DNTPD 2
11
40-47
Tape device number (stream 2)
ONTPD 3
11
48-55
Tape device number (stream 3)
ONTPD 4
11
56-63
Tape device number (stream 4)
SM-004S
1.0N-5
1.DP
DATASET PARAMETER AREA - DSP
Logical I/o requires the presence of a DSP for the dataset in the user's
field. Refer to publication SR-OOll for details of DSP use.
Figure 1.DP-l illustrates a DSP.
o 3 5
10
16
25
40
56
63
o (_B_sY________ ~~S~TS--------DN--~~~~~~----------I-I-I-I-II--I
1 \.i I
ERR
II
BFI
I II I I I
FRST
IN
IBN
UDS
2
111111111I IPB
OUT
OBN
3
III RBC I asP I
UEOF~IIIIEODIIIIIIIII
-"
EOR~I~~RW
6
BF
RCW
PRI
PFI
EOF
BIO~~
8
LMT
TBN
LPW
_B~U_BC_I______B_WC.
____________
B_WA
_ _ __
._1
TM
reserved
for use by
BER
TIO
16
TPL
TPS
TPD~~I
TPF,
18
I TPN I
TPB
;;:;:::lII'
TPR
k~~~IIII;pPIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
r-~
TPC
DPDIR
TPM
Reserved for
logical I/O
DEL BLNK
""-
23
TPV
1
-------------~<==>==~------------------------------------
/'
IIIIIIIIII;~,
RECL
NXRC
DIR UFMT
Figure 1.DP-l.
SM-0045
Dataset Parameter Area (DSP)
1.DP-1
Field
Word
Bits
Description
DPDN
o
0-55
Dataset name
DPBSY
1
o
Busy flag, circular I/O:
o
1
DPERR
OPEOI
DPENX
OPEOP
DPEPD
OPEBN
OPEDE
DPEHE
DPERW
DPEPT
DPSTS
1
1-12
1
1
1
2
3
4
1
1
1
1
1
1
5
6
7
8
1
1
9
1
14-15
10-12
Not busy
Busy
Error flags:
End of data on read; write past
allocated disk space on write
Dataset does not exist
Dataset not open
Invalid processing direction
Block number error
Unrecovered data error
Unrecovered hardware error
Attempted read after write or
past EOD
Dataset prematurely terminated
Reserved
Status:
00
10
01
11
Closed
Open for input (I)
Open for output (0)
Open for I/O
DPBFI
1
16-24
Blank compression character in ASCII
(BFI=77 8 implies no compression)
DPTCS
1
30-31
Tape dataset character set
DPTP
1
32-33
Tape dataset (online/staged)
DPTRAN
1
34
Transparent mode for interactive
dataset
DPIA
1
35
Dataset is interactive
DPMEM
1
36
Dataset is memory resident
DPRDM
1
37
Random dataset flag:
o Sequential dataset
1
SM-0045
1.DP-2
Random dataset
Field
Word
Bits
Description
OPUOS
1
38
Undefined dataset structure:
o COS blocked dataset structure
1
Undefined dataset structure
OPENO
1
39
Write end-of-data flag
DPFRST
1
40-63
Address of first word of buffer
OPIBP
2
10-15
Bit position in current input word
(logical I/O)
OPIBN
2
16-39
Block number, read request
System reads from block number until
buffer is filled. The next block
number is then in word 2.
OPIN
2
40-63
Address of current input word
OPRBC
3
3-9
Remaining blank count
OPOBP
3
10-15
Bit position in current output word
OPOBN
3
16-39
Block number, write request
System writes from block number until
buffer is empty. The next block
number is then in word 3.
OPOUT
3
40-63
Address of current output word
DPUEOF
4
o
Uncleared end-of-file (EOF)
OPTBN
4
16-39
Temporary block number; used by random
I/O for last block read
OPLMT
4
40-63
Address of last word+l of buffer.
minus FRST defines buffer size.
DPEOR
5
o
EOR flag
OPEOF
5
2
EOF flag
DPEOD
5
3
EOD flag
SM-0045
1.DP-3
LMT
Field
Word
Bits
Description
DPRW
5
4
Previous operation read/write flag
o
Read
Write
1
DPPFI
5
5-24
Previous file index; backward index to
block containing previous EOF
DPPRI
.5
25-39
Previous record index; backward index
to block containing previous EOR
DPRCW
5
40-63
Control word address:
Previous RCW address if in write mode
Next RCW if in read mode
DPLPW
6
0-63
Last partial word; used for character
mode I/O
DPBIO
7
o
Buffered I/O busy:
o
Buffered I/O operation
complete
Buffered I/O operation
incomplete
1
DPBER
7
1
Buffered I/O error flag
DPBF
7
2-9
Function code:
000
010
040
050
052
056
DPBPD
7
4
Read partial
Read record
write partial
write record
Write end-of-file
Write end-of-data
Processing direction:
o Read
1
DPBEO
7
6-9
Write
Termination condition:
00
10
12
16
SM-0045
1.DP-4
Partial
Record
File, write only
Dataset, write only
Field
Word
Bits
Description
DPBUBC
7
10-15
Unused bit count; must be specified on
a write record request. Value
returned on a read request.
DPBWC
7
16-39
Word count: number of words at DPBWA
to read or write. Field contains
actual number of words read when
request is completed.
DPBWA
7
40-63
Word address of user data area
8-15
Used by TIO as follows:
11
11
12
0-63
0-63
0-63
16-39
40-63
16-39
40-63
0-7
12
12
12
13
13
13
14
14
14
15
8-15
16-39
40-63
16-39
40-63
0-63
0-15
16-39
40-63
0-63
DPTPS
16
0-15
Online tape status
DPTPN
16
16-21
Tape noise block size in bytes
DPTPB
16
22-39
Tape max. block size in bytes
DPTPV
16
40-63
Tape pointer to label definition table
DPTPD
17
0-1
Tape density
DPTPL
17
2-4
Tape label type
DPTPF
17
5-6
Tape format
DPTPR
17
7-14
Tape recovery options
DPTM
8
9
10
10
SM-0045
(T. ZA)
(T. ZB)
(B. ZA)
(B.ZB)
(B.ZC)
(B. ZD)
JTA length/1000S when registers
are saved
Bits 0-7 of RBLK/WBLK A5
(B.ZE)
RBLK/WBLK BO
DNT address
(A 7) JXT address
RBLK/WBLK S5 during task recall
Bits 8-23 of RBLK/WBLK AS
RBLK/WBLK A2
RBLK/WBLK A3
RBLK/WBLK S6
1.DP-5
Field
Word
Bits
Description
DPTPC
17
15
Tape cataloged dataset
DPTPM
17
16
Tape online maintenance access
DPTPP
17
17-19
Tape parallel device count
18-22
0-63
Reserved for future use by logical I/O
23
12
FORTRAN file status
DPDEL
o-
Keep
1 - Delete
DPBLNK
23
13
FORTRAN numberic input blank conversion
o - Null
1 -
Zero
DPDIR
23
14
FORTRAN direct access flag
DPUFMT
23
15
FORTRAN unformatted I/O flag
DPRECL
23
16-39
FORTRAN direct access record length
(in number of characters)
DPNXRC
23
40-63
FORTRAN direct access next record
number
SM-0045
l.DP-6
1.DR
DEVICE RESERVATION TABLE - DRT
STP contains a Device Reservation Table (DRT) for each logical mass
storage device known to the system. The table (figure 1.DR-2) consists of
a header and a bit map. Each bit in the bit map represents one track on a
disk. A set bit implies that the track is in use.
o
8
16
24
o
40
48
56
63
LDV
MAU
1
2
32
1
AlA
1///////////////1
PDA
///////////////////////////////////////1
SZ
3
MAP
67
----_._--------------------- -------Figure 1.DR-l.
Device Reservation Table (DRT)
Field
---
Word
Bits
Description
DRLDV
0
0-63
Logical device name
DRMAU
1
0-15
Maximum allocation units less flaws
DRPDA
1
16-31
Number of Als used for permanent
dataset
DRAIA
1
48-63
Total available Als (number of unused
bits)
DRSZ
2
40-63
DRT map size in words
DRMAP
3-67
0-63
Bit map, one bit per track
SM-0045
1.DR-l
1.DT
DEVICE CHANNEL TABLE - OCT
The Device Channel Table is STP-resident and is used by the disk driver to
report completion of I/O and to report disk status. The OCT acts as a
link between the channel and the Equipment Table (EQT).
Figure 1.DT-l illustrates the Device Channel Table.
HEADER
o
8
o
16
TN
24
32
63
40
48
56
1////////////////////////////////////////
---
1
SUB
1////////////////////////////////////////////////////
2
FIN
1////////////////////////////////////////////////////
3
ACK
1////////////////////////////////////////////////////
4
QUE
1////////////////////////////////////////////////////
ENTRY
RSV~~~~NU_A__~I_-__-_~-~'___E_R_R____________________E._Q_T_________
1
OFF OA BRK
TIF
2
CTA
Figure 1.DT-l.
Device Channel Table (OCT)
HEADER
Field
Word
Bits
pescriEtion
DTTN
0
0-23
Table name; "OCT" in ASCII
DTSUB
1
0-11
Submitted channel bit map
DTFIN
2
0-11
Completed channel bit map
DTACK
3
0-11
Acknowledged channel bit map
DTQUE
4
0-11
Queued channel bit map
SM-0045
1.DT-l
ENTRY
There is one entry per channel.
Field
--
Word
Bits
Description
DTRSV
0
0
Channel reserved
DTOFF
0
1
Channel off
DTIA
0
2
Input channel active
DTOA
0
3
Output channel active
DrrCRCL
0
4
Clear recall flag
DTBRK
0
5
Break streaming flag
D'rNUA
0
8-15
Number of units active
DrrERR
0
16-39
cumulative channel error count
D'rEQT
0
40-63
Active equipment EQT address
DT'rIF
1
0-63
Time function issued
DTCTA
2
0-63
Cumulative channel reserved time
SM-0045
l.DT-2
1.DV
DEVICE LABEL - DVL
A device label resides on the device and is initialized by deadstart
initialization. The device label contains a flaw table for the device.
The device label for the master device also contains a pointer to the
Dataset Catalog.
Figure 1.DV-1 illustrates a DVL table.
o
16
8
o
LBL
24
32
40
48
56
63
I//////////////////////////////////~/~~
1
LDV
2
~
-----------------,
00
3
5
I
OVP
I
///////////////////////////////////////////////1
6
////////////////////////////////////////////////////////////////
4
/////////////// I
SOP
HSP
FLC
////////////////////////////////////////////////////////////////
FLT
256
257 ////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////
DSC
512
513 ///////////////////1///////1////////////////////////////1///////
///////////////////1////////////////////////////////////////////
1023 /1////1///////////11/////////////////111
Figure 1.DV-l.
CKS
Device Label (DVL)
Field
Word
Bits
Description
DVLBL
0
0-23
Device label indicator; nDLB" in ASCII
DVMD
0
63
Master device flag
DVLDV
1
0-63
Logical device name
DVRT
2
0-63
Real-time clock when DVL was wr itten
SM-0045
1.DV-1
Field
Word
Bits
Description
DVOD
3
0-63
LDV of device where overlay area
preallocation begins (master label
only)
DVSDP
4
16-31
First track of system dump area
4
16
DVOVP
4
32-47
DSC overflow pages if DVMD=O (master
device)
DVHSP
4
48-63
DSC hash pages if DVMDFO (master
device)
DVFLC
5
48-63
Number of used AIs
DVFLT
256
0-15
List of reserved Als such as flaws, FE
tracks, etc.
DVDSC
512
0-63
Dataset Catalog OAT page images if
DVMD~O (master device)
DVCKS
1023
40-63
Checksum
DVOVL
SM-0045
First AI of overlay area/on device
identified in (DVOD) (master label
only)
1.DV-2
This STP-resident table is used for working storage by the disk driver,
for disk allocation, for passing requests to the disk driver, and for
queue management. The EQT is illustrated in figure I.EQ-l.
HEADER
a
8
o
16
24
TN
32
40
1///////////////1
48
56
63
NE
NUA
ENTRY
MSD
NA
0
OFF RLS DT
~5:[' RCH __I}1111j.!}II
2
UP
CPO
I
TPC
ACT
LST
///////////////1
1///////1
7
NPR
8
NRT
11
12
~~~//I
"
RET
SC
CYL
I TRK 1 SEC
RSC
TO .CLM
MGN
DBD
ISZ
CA
TRY
TA
I
MA
SA
ERR
DSP
13
ECYL
RER
14
FCT
15
STS
16
IB1
17
IB2
18
IB3
19
IB4
20
IB4
Figure 1.EQ-l.
SM-0045
LNK
QH
CST
10
_D_R_T_ _ _ __
QT
6
9
x-=
AU
4
5
UTI
CH2 I CHl I
I
QL
3
LDV
Equipment Table (EQT)
1.EQ-1
I EHD I ESCT
HEADER
Field
Word
Bits
Description
EQTN
o
0-23
Table name: "EQT" in ASCI I
EQNUA
o
40-47
Next unit to be allocated
EQNE
o
48-63
Number of entries in table
Field
Word
Bits
Description
EQLDV
o
0-63
Logical device name
EQMSD
1
o
Master device flag
EQOFF
1
1
unit off
EQNA
1
2
unit not available
EQRLS
1
3
Flag set if datasets involving this
LOV are to be released
EQUP
1
4
*up flag: set if *up parameter is
present in parameter file. This
allows Startup to write a new device
label if there is none so that new
devices can be added without requiring
an INSTALL type Startup.
EQDT
1
5
Disk type:
ENTRY
o 00-19
1
00-29
EQRCH
1
8-15
Processor channel number
EQCH2
1
26-31
Secondary channel number
EQCHl
1
32-37
Primary channel number
EQUTl
1
38-39
Primary unit number
EQORT
1
40-63
DRT address
EQCPO
2
0-15
Cylinders per disk
EQTPC
2
16-23
Tracks per cylinder
SM-0045
1.EQ-2
Field
Word
Bits
Description
EQAU
2
24-39
Blocks per allocation unit (sectors
per track)
EQLNK
2
40-63
Link to next equipment on channel
EQQL
3
0-15
Queue length
EQQT
3
16-39
Queue tail pointer
EQQH
3
40-63
Queue head pointer
EQACT
4
0-63
Anticipated on cylinder time
EQLST
5
16-31
Logical status
EQCYL
5
40-51
Last cylinder position
EQTRK
5
52-57
Last track position
EQSEC
5
58-63
Last sector position
EQCST
6
0-63
Cumulative seek time
EQNPR
7
0-63
Number of physical requests
EQNRT
8
0-63
Number of requests
EQRSC
9
0-63
Number of requests not requiring a seek
EQTD
10
o
Transfer direction
o
1
Read
Write
EQRET
10
1
Retry flag
EQCLM
10
2
Clear margin flag
EQMGN
10
8-23
Last margin flag
EQISZ
10
24-39
Buffer increment size
EQDBO
10
40-63
Driver's saved BO
EQSC
11
0-15
Remaining sector count
SM-0045
l.EQ-3
Field
Word
Bits
Descr iption
EQCA
11
16-27
Current cylinder address
EQTA
11
28-33
Current track address
EQSA
11
34-39
Current sector address
EQMA
11
40-63
Current memory address
EQTRY
12
0-15
Retry count
EQDSP
12
16-39
DSP address or 0; used to pass DSP
address to EXEC
EQERR
12
40-63
Total disk errors
EQRER
13
16-39
Recoverable error count
EQECYL
13
40-51
Last cylinder error address
EQEHD
13
52-57
Last head error address
EQESCT
13
58-63
Last sector error address
EQFCT
14
0-63
Beginning of 6-word a com buffer
EQSTS
15
0-63
Edited status
EQIB1
16
0-63
Input buffer 1
EQIB2
17
0-63
Input buffer 2
Contain error
EQIB3
18
0-63
Input buffer 3
correction vector
EQIB4
19
0-63
Input buffer 4
EQATO
20
0-63
lOP Disk Timeout Save word
SM-0045
I.EQ-4
I.IB
INTERACTIVE BUFFER TABLE - IBT
The Interactive Buffer Table is STP resident and is used to manage the
interactive Buffer Pool Table.
HEADER
a
o
1
16
8
24
32
40
1///////////////1
TN
///////////////////////////////1
Figure 1.IB-1.
48
56
63
56
63
NBA
BPA
WPB
Interactive Buffer Table (IBT) header
Field
Word
Bits
Description
IBTN
0
0-23
Table name
IBNBA
0
40-63
Number of available buffers
IBWPB
1
32-39
Words per bit
IBBPA
1
40-63
Buffer pool beginning address
ENTRY
o
8
16
24
32
40
o
BM
.
7
Figure 1.IB-2.
Field
IBBM
SM-0045
0-7
IBT entry
Bits
Description
0-63
Bit map
1.IB-1
48
1.JC
JOB COMMUNICATION BLOCK - JCB
The first 128 words of each user field comprise the Job Communication
Block. The JCB is accessible to the user.
o
o
1
16
24
31
//////////////////////////////1
40
48
56
63
POS
(Available for scratch space)
5
CCI
16
CPR
65
66
1////////
IN
64
///////////////1
NPF
I
HLM
BFB
I
I
1//lOAP/////////////////1
FL
OSP
LFT
CSOB 69
70
C~
71
ACN
72
ACNl
73
P~
74
P~l
75
////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////
LOR
102
103 ////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////
Figure 1.JC-l.
SM-0045
Job Communication Block (JCB)
1.JC~1
o
24
118
31
BOAT
119
BTIM
16
40
48
56
63
120
DIG
.
127
Figure 1.JC-l.
Job Communication Block (JCB) (continued)
Field
Word
Bits
Description
JCPOS
o
31-63
Current $CS position
JCCCI
5-15
0-63
Control statement image packed 8
characters per word
JCCPR
16-63
0-63
Control statement parameters, expanded
to 2 words per parameter
JCJN
64
0-55
Job name; bits 56-63 must be 0
JCHLM
65
16-39
High limit of user code
JCFL
65
40-63
Current field length
JCNPF
66
0-15
Number of physical buffers and datasets
JCBFB
66
16-39
Base address of I/O buffers
JCDSP
66
40-63
Base address of DSP area
JCNLE
67
0-15
Number of entries in LFT
JCLFT
67
40-63
Base of LFT
JCSIM
68
o
Simulator flag
JCCSDB
68
1
CSP debug flag
JCBP
68
2
JOB statement breakpoint (BP) flag
JCMRF
68
3
Memory request flag. If set, dynamic
field management by CAL, LOR, etc. is
not allowed.
SM-0045
1 .. ,JC-2
Field
Word
Bits
Description
68
4
I/O area current status flag
o User's I/O area is unlocked
1 User's I/O area is locked
68
5
I/O area previous status flag
o User's I/O area is unlocked
1 User's I/O area is locked
JCIA
68
6
Interactive flag
JCCHG
68
7
Execute charges for trailer message
JCJBS
68
8
Job statement flag (if set, JOB
statement just processed)
JCEFI
69
o
Enable floating interrupt flag~ used
by $FTLIB math routines to reset
floating point interrupt flag
JCCRL
70
0-63
COS revision level
70
32-63
JCACN
71
0-63
Account number (characters 1-8)
JCACNl
72
0-63
Account number (characters 9-15)
JCPWD
73
0-63
Password (characters 1-8)
JCPWOl
74
0-63
Password (characters 9-15)
JCLDR
102
0-63
Unsatisfied externals
JCBDAT
118
0-63
Date of absolute load module generation
JCBTIM
119
0-63
Time of absolute load module generation
JCDIG
120-127
0-63
Reserved for diagnostics
JCCRLS
s
COS revision number
Deferred implementation
SM-0045
1.JC-3
1.JT
JOB TABLE AREA - JTA
The JTA (figure 1.JT-1) for a job resides below the field for the job and
is not accessible to the user.
a
16
24
32
Os
IN
lS
TSX
28
TSW
3S
TSD
4S
lOB
5S
lOR
68- 78
USR.
40
56
4S
63
I11111111
BKP
lOS
1111111111111111111111111111111111111111111111111111111111111111
20 8
XP
1111111111111111111111111111111111111111111111111111111111111111
40S
41 8
STR
VM
~IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
CSTK
42a
60a
11111/1//1///1//111/111/11111111111111/1/1/111111111111//1/11111
/111///////////11
TBLL
.1
TBL
61S
11111/1///1/1111111111111111111111/11111111111111111111111111111
NLE
Ji//I/IIIIIIIIIIIIIII//il
TSXL
BlOC
DTS
Figure 1.JT-l.
SM-0045
1.JT-l
Job Table Area (JTA)
FLF
8
668
16
24
IEP~PJIIIIIIII
EP~ ~II
32
40
I
SOT
EPF
I .___
ERe
I11111111111111111111111I
liE Mil
718
IleROIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
73 8
56
63
XPR
E_p_P_ _ _ _ _
I ______E_P_A_ _ _ __
708
72 8
48
~/IIIIIIII/IIIIIIIIIIIIIIII/IIIIIIIIIII
SID
1//111111
DID
PM
Ioeu
Ioe
JXT
TID
XMI
OMI
,~~r--i~"'ii'T1it~~~tI-1 I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I
1008
B
2008
T
3008
VO to V7
13008
DMP
13208
CDP
Figure 1.JT-1.
SM-0045
Job Table Area (JTA)
1.JT-2
(continued)
°
8
16
24
32
134°8
LOP
136°8
EOP
14°°8
MSG
40
142°8
POD or EON
144°8
AREG
145°8
SREG
146°8
OTM
48
56
63
////////////////////////////////////////////////////////////////
166°8
CCl
16728
OON
16748
JCB
16778
CHK
17°°8
ST
17018
FEFW
17028
MSK
WUP
RXP
17038
ACN
17048
ACN1.
17058
PWD
17068
PWD1
17078
MXM
1710 8
PFA
17118
TFS
17128
I
MIM
OPC
PFS
MRD
BRF
CLC
1////////////////
BSF
TERM
//////////////////////////////////1//1//1///////////////////////
17408
AO
F i 9ure l.JT-l.
SM-0045
Job Table Area (JTA)
1.JT-3
(continued)
8
16
32
24
17508
so
17608
INS
40
48
56
63
11111111111/1111111111111111111111111111111111111111111111111/11
CSB
2000s
1111111111111111111111111111111111111111111111111111111111111111
3000 S
LGF
4000s
1111111111111111111111111111111111111111111111111111111111111111
L
JSQ
1//1111/1///1/11//1/111/1
4001S
II///I////II//I~
--------------------,-------------MRCC
RL
4002S-(W@JTADL+LE@DDL-1)~MR
ADL
W@JTADL+LE@DDL
DPS
W@JTDPS+1
LFL
(W@JTLFL+1)-(W@JTJXTI-61S)
JXT:r
(W@JTJXT1D ' 50)
RDAT
W@JTRDAT+L@JTRDAT
POOL
W@JTPOOL+l
DHN
W@JTDNH+1
CS
W@JTCS+LE@DNT+3
LOG
Figure 1.JT-1.
SM-0045
Job Table Area {JTA}
1.JT-4
(continued)
NOTE
The words in the word column below are shown in octal.
Field
Word
Bits
Description
JTJN
o
0-55
Job name; bits 55-63 must be 0
JTTSX
1
0-63
Time spent executing in CPU (cycles)
JTTSW
2
0-63
Time spent waiting to execute (cycles)
JTTSD
3
0-63
Time spent waiting for I/O completion
JTIOB
4
0-63
Disk blocks transferred
JTIOR
5
0-63
User I/O requests
JTUSR
6-7
0-63
User number: 1-15 characters
JTBKP
10
0-63
Breakpoint registers
10
10
10
0-15
16-39
40-63
JTXP
20
0-63
Exchange package
JTVL
23
24-30
vector length
JTVM
40
0-63
vector mask
JTSTR
41
o
Job streaming bit
JTCSTK
42
0-63
Control statement file stack
JTTBLL
60
16-39
Length of eSP-managed table area
JTTBL
60
40-63
Address of eSP-managed table area
JTNLE
62
0-15
Number of LFT entries in JTA
JTFLF
62
40-63
Point to first of JTA LFT chain
JTTSXL
63
0-63
Time spent executing at last disconnect
JTBIOC
64
0-63
Buffered I/O request count
JTBKPP
JTBKP2
JTBKPI
SM-0045
Breakpoint instruction parcel
Breakpoint parcel address 2
Breakpoint parcel address 1
1.JT-5
Field
Word
Bits
Description
JTDTS
65
0-63
Date/time of last rollout; must be in
first sector of roll dataset
JTSDT
66
16-39
SDT address used by RLD in EXP
JTXPR
66
40-63
Return address used by Exchange
Processor
JTEPX
67
0-1
Exchange Processor request word:
1
2
Error exit (bit 1 set)
Normal exit (bit 0 set)
JTEPC
67
2
Flag set if JTEPA has a continuation
address
JTEPJ
67
3
Flag set if request made by Job
Scheduler
67
4
Flag set if JTA expansion is requested
for additional DAT space
67
7-15
Flags from user exchange package
JTEPP
67
16-39
P register from user exchange package
JTEPA
67
40-63
continuation address in EXP
JTERC
70
7-15
Reprieve error code
JTPM
70
40-63
PDD address; used in DISPOSE processing
JTIOCU
71
40-6,3
User field I/O count; includes buffer
in and buffer out requests and I/O
requests with DSP
JTCRO
72
o
Outstanding reply from DQM to CIO;
must be cleared before job can be
expanded or contracted
JTIOC
72
40-63
Count of active I/O requests or
functions
JTSID
73
0-15
Source ID; 2 characters
JTDID
73
16-31
Destination ID; 2 characters
SM-0045
1.JT-6
Field
Word
Bits
Descrietion
JTJXT
73
40-63
JXT entry address
JTTIO
74
0-63
Terminal IO
JTXMI
75
0-63
Memory integral based on execution time
JTOMI
76
0-63
Memory integral based on I/O wait time
JTSEC
77
0
Security flag; set if CSP executing
JTTLE
77
1
Time limit expired once
JTDMPF
77
2
Dump-in-progress flag
JTEXIT
77
3
EXIT statement flag
JTEOF
77
4
End-of-file on $CS flag
!JrrKIL
77
5
Job killed flag
JTRRN
77
6
Job rerun flag
JTIDP
77
11
Inhibit dumpjob processing flag
JTEXO
77
12
Execute-only dataset open flag
JTEFI
77
13
Enable floating interrupt flag
JTDLM
77
14
Disable log message
JTTRM
77
15
Job in termination flag
JTABT
77
16
Job abort flag
JTCMSG
77
17
Enable conditional messages flag
JTLGFL
77
18
$LOG size exceeds I@LGUSZ
JTJCBX
77
19
JCB bad flag
JTSTAT
77
20
Request dataset statistics flag
JTTRMl
77
21
Second pass through TRM flag
JTINIT
77
23
Job initiated flag
JTNRR
77
24
Not rerunnabale if set
JTNRO
77
25
Disables no rerun if set
SM-0045
1.JT-7
Field
Word
Bits
Description
JTIOAC
77
26
I/O area current status flag
o user's I/O area unlocked
1 user's I/O area locked
JTIOAP
77
27
I/O area previous status flag
o user's I/O area unlocked
1 user's I/O area locked
JTOSUP
77
28
Interactive output suspended (recovery)
JTISUP
77
29
Interactive input suspended (recovery)
JTIA
77
30
Interactive flag
77
31
Control statement skip flag
JTMAC
77
32
Flag to move account number/password
to JTA
JTB
100-177
0-63
B registers
JTT
200-277
0-63
T registers
JTVO
300-377
0-63
VO register elements
JTVI
400-477
0-63
Vl register elements
JTV2
500-577
0-63
V2 register elements
JTV3
600-677
0-63
V3 register elements
JTV4
700-777
0-63
V4 register elements
JTV5
1000-1077
0-63
V5 register elements
JTV6
1100-1177
0-63
V6 register elements
J 1rV7
1200-1277
0-63
V7 register elements
JTDMP
1300-1317
0-63
Copy of exchange package for error
processing
JTCDP
1320-1337
0-63
Control statement ($CS) DSP
JTLDP
1340-1357
0-63
Log file ($LOG) DSP
SM-0045
1.JT-8
Field
Word
Bits
Description
JTEOP
1360-1377
0-63
EXU OSP; also used by OUMPJOB
.1TMSG
1400 .... 1417
0-63
Last logfile message issued
JTPOO
1420-1437
0-63
Permanent dataset descriptor entry
used by job termination
JTEON
1420-1427
0-63
ONT for EXU
JTAREG
1440-1447
0-63
A-register save area for
RESUME/CONTINUE only
JTSREG
1450-1457
0-63
S-register save area for
RESUME/CONTINUE only
JTOTM
1460-1657
0-63
Save area for Task I/O
JTCCI
1660-1671
0-63
80 characters of control statement
being prescanned
JTOON
1672-1673
0-63
2-word OON table used by RELEASE and
DISPOSE
JTJCB
1674-1676
0-63
Three words from user JCB starting
with W@JCHLM
JTCHK
1677
0-63
Reprieve checksum supplied by user
JTST
1700
0-63
Reprieve status word
JTFEFW
1701
0-63
Reprieve fatal error flag word
1701
1701
1701
1701
1701
1701
1701
1701
1701
1701
1
2
3
4
5
JTFE03
JTFE10
JTFE11
JTFE23
JTFE24
JTFE41
JTFE58
JTFE51
JTFE43
JTFENR
6
7
8
9
63
No OAT space
No disk space
SOR is full
Job time limit exceeded
Operator dropped user job
Enter allowed on ACCESS only
Error exit
LFT chain pointer invalid
User log size invalid
Not reprievab1e
JTMSK
1702
0-15
Reprieve mask
JTRXP
1702
16-39
Reprieve XP address in user area
SM-0045
1.JT-9
Field
---
Word
Bits
Description
JTWUP
1702
40-63
Reprieve entry address in user area
JTACN
1703
0-63
Account number (characters 1-8)
JTACNI
1704
0-63
Account number (characters 9-15)
J'rpWD
1705
0-63
Password (characters 1-8)
JTPWDI
1706
0-63
Password (characters 9-15)
JTMXM
1707
0-23
Maximum amount of memory used
J'rMIM
1707
24-47
Minimum amount of memory used
JTOPC
1707
48-63
Number of open calls
J'fPFA
1710
0-23
Permanent file space accessed
JTPFS
1710
24-47
Permanent file space saved
J'rcLC
1710
48-63
Number of close calls
JTTFS
1711
0-23
Temporary file space used
JTMRD
1711
24-47
Number of memory resident datasets
JTBRF
1712
0-23
Number of blocks from the front end
1712
24-47
Number of blocks sent to the front end
JTTERM
1712
48-63
Termination status
o = Normal
1 = User requested abort
2 = System requested abort
3 = Drop
4 = Kill
JTAO, ••• ,
JTA7
1740-1747
0-63
A-register save area for EXP
JTSO, ••• ,
JTS7
1750-1757
0-63
S-register save area for EXP
cJTINS
1760-1777
0-63
Reserved for installation
JTCSB
2000-2777
0-63
Control statement ($CS) buffer
SM-0045
1.JT-10
Field
---
Word
Bits
Description
JTLGF
3000-3777
0-63
Logfile ($LOG) buffer
JTJSQ
4000
O-lS
Job sequence number
4000
40-63
Length of Job Table Area
JTMR
4001
1S
Memory request outstanding flag
,JTRL
4001
16-39
Requested length of JTA expansion
JTMRCC
4001
40-63
count of datasets waiting for JTA
memory
JTADL
4002-(W@JTADL+
LE@DDL-l
0-63
DOL for OPEN and DUMPJOB: up to six
words long
JTDPS
W@JTADL+LE@DDL
0-63
Control word for Task I/O DSP save area
JTLFL
W@JTDPS+l
0-63
User last word before rollout
0-63
Image of JXT at rollout
0-63
Image of roll OAT
JTJXTI
JTRDAT
JTPOOL
(W@JTLFL+l)(WAJTJXTI-61S
(W@JTJXTI+62 S
(W@JTRDAT+307S
First word of JTA memory pool
W@JTRDAT+310S
0-63
JTDHN
JTDBL
JTDFL
JTCS
JTLOG
SM-004S
W@JTPOOL+l
W@JTPOOL+l
W@JTPOOL+l
W@JTONH+l
W@JTCS+
LE@ONT+3
0-63
Head of the ONT chain
16-39
40-63
DNT backward link
NNT forward link
0-63
Control statement ($CS) ONT
0-63
Logfile ($LOG) ONT
1.JT-ll
l.JX
JOB EXECUTION TABLE - JXT
The JXT in STP memory contains an entry for each job that has begun
processing. The JXT is used to control all active jobs in the system.
The JXT may contain from 1 to 63 entries; the firest entry is reserved for
the operating system, itself.
The JTA entry and the JXT entry for a particular job contain each other's
addresses. Word 0 in both entries contains the 7-character job name.
A JXT entry is illustrated in figure 1.JX-1.
0
8
0
40
56
48
ORO
STCH
2
STAT
3
4
NR
IEPC
SOT
BLO
FLO
I.
JTA
RJS
CJS
CP
P
63
1////////
IN
1
5
32
24
16
MP
DNT
6
TSX
7
lOB
8
MEM
9
EW
10
OLY
11
TL
12
LFM
////////////////////////////////////////////////////////////////
22
SUS
23
TSXI
24
lOBI.
Figure 1.JX-1.
SM-0045
Job Execution Table (JXT) entry
1.JX-l
0
8
16
24
25
DTI
26
LRC
27
LSC
28
LISC
29
PI
30
P2
NRR~ T~
32
Figure 1.JX-l.
48
56
63
P3
DMR IA ~RL!..-URLM
~ SW r~~ ~URUM
40
32
JTL
AUT
Job Execution Table (JXT) entry (continued)
Field
Word
Bits
Description
JXJN
o
0-55
Job name
JXSTCH
1
0-55
Job status in displayable form (7
characters)
JXORD
1
56-63
Ordinal number (0-63) of the JXT entry
JXS'fAT
2
0-22
Status~
JXEPC
2
23-27
Reason for abortion if the A status
bit is set See Job Scheduler equates
for A$ xxx in COS for abort codes.
JXNR
2
28-39
Number of times the job has been
rolled in
JXJTA
2
40-63
Job table area address
JXSDT
3
0-15
SOT offset for this job's SOT entry
JXBLO
3
16-27
Backward link as a JXT offset
JXFLO
3
28-39
Forward link as a JXT offset
JXRJS
3
40-63
Requested job size including JTA
JXCP
4
0-39
CPU priority (based on resource use)
SM-0045
1.JX-2
see part 1, section 3.8.6
Field
Word
Bits
Description
JXCJS
4
40-63
Current job size including JTA
JXP
5
0-7
Priority from JOB statement
JXMP
5
8-39
Floating memory priority (based on JXP)
JXDNT
5
40-63
Rolled immage's DNT entry address
JXTSX
6
0-63
Time spent executing as of last
rescheduling
JXIOB
7
0-63
Disk blocks transferred as of last
rescheduling
JXMEM
8
0-63
Saved memory request word (J$ALLOC)
JXEVW
9
0-63
Saved event word (JSAWAIT)
JXDLY
10
0-63
Wake-up time in cycles (J$DELAY)
JXTL
11
0-63
Time limit in cycles
JXLFM
12
0-63
Last logfile message
JXSUS
22
0-63
Reply word for JSSUSPK
JXTSXI
23
0-63
Time spent executing in past
scheduling interval
JXIOBI
24
0-63
Disk blocks transferred in past
scheduling interval
JXDTI
25
0-63
Data and time initiated
JXLRC
26
0-63
Date and time of last residence change
JXLSC
27
0-63
Date and time of last status change
JXLISC
28
0-63
Date and time of last I/O status change
JXPI
29
0-63
Temporary storage word 2 for TRACEMP
JXP2
30
0-63
Temporary storage word 2 for TRACEMP
JXP3
31
0-63
Temporary storage word 3 for TRACEMP
JXNRR
32
o
Job rerun flag; set if job cannot be
rerun
SM-0045
l.JX-3
Field
Word
Bits
Descr iption
JXTRM
32
1
Job in termination flag
JXSW
32
2-7
Sense switches
JXDMR
32
8
Don't-mark-recoverable flag - set when
a request is made to declare a job
non-recoverable~ cleared when the job
is connected.
JXIA
32
9
Interactive flag
JXLVL
32
10-12
Current procedure level
JXURLL
32
13
UROLL request indicator
JXURLM
32
14
System log message indicator
JXURUM
32
15
User log message indicator
JXAUT
32
16-39
Address of Active User Table (AUT) for
interactive jobs
JXJTL
32
40-63
Length of the Job Table Area (JTA)
There are four temporary tables for displaying the name, SOT offsets, CPU
priority, memory priority, and status for each job in the JXT. These
tables, Which will be removed when a complete job display is implemented,
follow the JXT and precede the MST in memory. Each table consists of a
single word for each JXT entry; in each table, the initial ~ntry (for JXT
ordinal zero) contains the table description is ASCII (that is,
"NAME+SDO", "CPU PRI", "MEM PRI", or "STATUS").
The first table (job names and SDT ordinals) immediately follows the JXT.
The SOT ordinal occupies the rightmost 8 bits of a word in this table.
The remainder of the word is needed for the 7-character name.
The second and third tables (CUP and memory priorities) contain floating
point values in ASCII to four decimal places. Entries in these tables are
updated by the Job Scheduler at the end of each scheduling interval when
the priorities are recomputed. However, if there are fewer than I@AGECP
is zero, the CPU priority algorithm and is either 0 or 1. I@AGECP also is
o or 1; if it is 0, aging of CPU priorities is disabled and the changing
memory priorities are used instead.) Similarly, if there are no
unsatisfied memory requests, the memory priorities are not recomputed.
The fourth table (job statuses) immediately precedes the MST. It contains
copies of the JXSTCH and JXORD fields from the JXT. The appropriate entry
is updated whenever the status of a job is changed by the Job Scheduler.
SM-0045
1.JX-4
1.LC
LINK CONFIGURATION TABLE - LCT
The Link Configuration Table resides in STP memory.
for each physically connected front-end.
It contains an entry
Figure 1.LC-l illustrates the LCT format.
HEADER
o
8
o
16
NM
24
40
48
56
1///////////////////////////////1
63
NA
ENTRY
ON
o
1
CHO
rli / / / / / / / / / / / / / / / / / / / / / / / / / / 1CHT 1
///////////////1
DBS
Figure 1.LC-l.
CHN
NID
ST
SBS
Link Configuration Table (LCT)
HEADER
-Field
Word
Bits
Description
LCNM
o
0-23
Table name 1 "LCT" in ASCII
LeNA
o
56-63
Number of active physical channels
SM-0045
1.LC-l
ENTRY
Field
Word
Bits
DescriEtion
LCCHO
0
0-7
Channel ordinal (used with lOP)
LCON
0
8
Channel configured on flag
LCCHT
0
36-39
Channel type
LCCHN
0
40-47
Software channel pair number
LCNID
0
48-55
Number of logical IDs for channel
LCST
0
56-63
Number of streams per physical channel
LCOaS
1
16-39
Size of disk butfer
LeSBS
1
40-63
Maximum size of segment
SM-0045
1.LC-2
1.LG
LOG TABLES - LGI, LGR, LGUQ
1.LG.l REQUEST WORD TO MSG - LGI
FCU
FCS~~/////I
10
I SUB
TYP
Figure 1.LG-l.
19
40
25
LEN
I111111111111111111111111
Request word to MSG (LGI)
Field
Word
Bits
Description
LGIFCS
0
0
System log flag
LGIFCU
0
1
User log flag
LGIFC
0
2
Function code
LGITYP
0
10-18
Major type
LGISUB
0
19-24
Subtype
LGILEN
0
25-39
Length
1.LG.2
U~
RECORD IN SYSTEM LOG - LGR
o
8
16
24
48
40
56
63
32
.__________________________T_I_M
_____________________________
1 ~I
TYP
I SUB
I1111111I
2
JSQ
IN
Figure 1.LG-2.
SM-0045
63
Record in system log (LGR)
1.LG~l
LEN
Field
word
Bits
Description
LGRTIM
o
0-64
Time
LGRU
1
o
User flag; message also in $LOG
LGRTYP
1
1-9
Major type
LGRSUB
1
10-15
Subtype
LGRJSQ
1
24-39
Job sequence number, if associated
with a job, otherwise 0
LGRLEN
1
40-63
Length
LGRJN
2
0-63
Jobname, if associated with a job
1. LG • 3
RECORD IN MEMORY POOL
0
8
16
0
24
32
Chain item words
40
48
63
56
1
2
L
1/////////////////1
3
R or BCW
4
TI or IAT
5
6
CI
CF
S
7
1D
8
T
Figure 1.LG-3.
SM-0045
JX
JQ
LV
$LOG Record in Memory Pool (LGUQ)
1.LG-2
SP
Field
Word
Bits
Description
LGUQL
2
0-5
Length of $LOG record
LGUQJQ
2
24-39
Job sequence number
LGUQJX
2
40-63
LGUQR
3
0-63
Spaces
LGBCW
3
0-63
SCW for interactive message
LGUQTI
4
0-63
Time
LGIAT
4
0-63
Text area for interactive message
LGUQCI
5
0-63
CPU TIME (integer portion
LGUQCF
6
0-31
CPU time (fractional portion)
LGUQS
6
32-47
Two spaces
LGUQLV
6
48-55
Procedure level
LGUQSP
6
56-63
Spare space
LGUQID
7
0-63
Task ID
LGUQT
8-n
0-63
Message text
l.LG.4
. JXT address
LOG JXT TABLE - LGJ
The LGJ table contains a wone-word entry for each job having records
placed in its user logfile ($LOG). The entries are in the same ordinal
positions as their JXT entries.
o
RO
10·
QR
I/I~ / /
16
24
////////// I
IO
Figure l.LG-4.
SM-0045
$LOG Record in JXT Table (LGJ)
l.LG-3
63
49
QA
JSQ
Field
'Word
Bits
Descrietion
LGJRO
0
0
Rollout flag - Log Manager tries to
write message to this job while it was
rolled out
LGJQR
0
1-8
Number of queue entries remaining
LGJIO
0
10
I/O busy flag
LGJQA
0
24-47
Address of queue entry
LGJJSQ
0
48-63
Job sequence number
SM-0045
1. LG-4
1.LS
LINK INTERFACE STREAM TABLE - LST
Eight input stream LSTs and eight output stream LSTs are contained within
each LXT entry. Each LST is used only by the Station Call Processor and
contains SCP working storage.
Figure 1.LS-l illustrates an LST format.
0
0
STN
8
1 RSF
1
CSSC
SSC
2
SBRF 3
16
1
24
32
40
1
NEXT
48
LX
SDT
SGN
PRSE
RSC
//PR///////////I
SBZ
~~~///////////I
56
RSCZ
RSCT
SBB
DBZ
DBB
5
/TEiw/too/// / / 1
SPR
FRST
6
///////////////1
SBL
IN
7
///////////////1
PDD
OUT
8
RTN
LMT
9
///////////////1
STC
sse
10
///////////////1
1////////1
SVI
11
CSCZ 1// / / / //1
CSCT
Figure 1.LS-l.
SV2
SV3
Link Interface Stream Table (LST)
Field
Word
Bits
Description
LSSTN
0
0-7
Stream number
LSRSF
0
8-15
Right shift count
LSNEXT
0
16-39
Link to next LST
LSLX
0
40-63
Extension table address
LSCSSC
1
0-7
Current send stream control code
LSSSC
1
8-15
Next send stream control code
LSSGN
1
16-39
Segment number
SM-0045
1.LS-1
63
1<' ield
Word
Bits
Description
LSSDT
1
40-63
SDT address
LSPRSC
2
0-23
Process received stream control code
LSRSC
2
24-31
Received stream control code
LSRSCZ
2
32-39
Next received stream control code
maximum value
LSRSCT
2
40-63
Next received stream control start
LSSBZ
3
16-39
Segment buffer size
LSSBB
3
40-63
Segment buffer base address
LSSBRF
4
o
Segment buffer ready
LSPR
4
1
Outstanding PUTREQ
LSTERM
4
2
Terminate for PPN, CAN, or MCL
LSLOG
4
3
LOGON received
LSDBZ
4
16-39
Disk buffer size
LSDBB
4
40-63
Disk buffer base address
LSSPR
5
16-39
Segment buffer pointer
LSFRST
5
40-63
Disk buffer "first" address
LSSBL
6
16-39
Segment buffer limit address
LSIN
6
40-63
Disk buffer "in" address
LSPDD
7
16-39
Pointer to PDD for steam request
LSOUT
7
40-63
Disk buffer "out" address
LSRTN
8
16-39
Return address for deferred processing
LSLMT
8
40-63
Disk buffer limit address
LSSTC
9
0-30
Send stream transmission word count
LSSBC
9
40-63
Segment bit count
SM-0045
1.LS-2
Field
Word
Bits
Description
LSSVl
10
16-39
Save Al = LIT for common reply
LSSV2
10
40-63
Save A2 = LXT for common reply
LSCSCZ
11
0-7
Current steam control code maximum
LSCSCT
11
16-39
Current steam control code table
LSSV3
11
40-63
Save A3 = LST for common reply
SM-0045
1.LS-3
1.LT
LINK INTERFACE TABLE - LIT
The Link Interface Table is STP resident. It is used by both the Station
Call Processor and EXEC and contains SCP-EXEC communication areas, working
storage, and channel buffers. An LIT entry is assigned by SCP at
deadstart to each channel Which is to be used by SCP for link interface
cornmunica tions.
Figure 1.LT-l illustrates the LIT.
o
INT~ICHN
8
II
16
20
63
24
32
40
46
--I~D----I----L-X------
ICHTIIIII
CHO
oN~1'1j7li2oNIIIIIIIIIIIIII
11111111 MSSG I11111I
111111111111111I
2
3
SGZ
SZB
SSGZ
SSZB
CBSZ
CBS
4
SST
I
SBC
I
SBZ
SBQH
5
DBT
I
DBC
I
DBZ
DBQH
11111111111111111111111111111111
11111111 LXC I
CNXT
6
7
IA~IIIIIIIIIIIIIIII
ILAL
LXQH
CKSZ
NEXT
I
ILAB
1111111111111111111111111111111111111111111111
9
10
11
12
13
ISSZ
IERC
15
11111111
16
ILC
20
I
ISAB
ITE
ITM
ITS
ITSS
I
ILL
ILB
I
1111111111111111//111/111111111111111111
18
19
I SAL
ISWC
1111111111111111/111111/1/11/11/1/11/1/11/1/11
111111/1 ISSN I
ISSB
I
ISSL
11111111/1/11111//111/1/111111111111111111111111111111//111111//
14
17
I
ILWC
INAD
INTC
IEAB
ILCE
I I I I I I I If/II I I I I I I I I I I I I I
INMD
I INFCI
INDN
I
~
INSN
1111111111/1111//11/111/1111/1111111/1111111111111111111/1111111
ILCP
21
. 1111111111111111/11111111111/1111111111/111111111111111111111111
. 11111111111111111/11111111111111111111111111/1111111111111111111
OA~IIIIIIIIIIIIIIII
OLAL
Figure I.LT-l.
SM-0045
OLAB
Link Interface Table (LIT)
1.LT-l
o
16
8
20
24
40
32
63
46
OLWC
29
1111111111111111111111111111111111111111111111
OSSZ
I
OSAL
I
OSAB
30
11111/1/////////////////1////1/////1////////11
OSWC
31
/
32
/////////////////1////1/1//////////1/////////////////1////1////1
28
I / / / / /1 OSSN
33
OERC
34
11/////1
35
36
39
OSSB
OSSL
OTM
OTSS
I
OLL
1
OTS
1
OLB
1//1///////////1/1////1///1///11/////1/1
ONAD
1// / / I /
ONTC
OEAB
OLCE
~// /// /I /// ////I I
ONMD
IONFC
ONON
1
It
ONSN
/1/1/////11///////1////1/////1///1/////1/1///////////1////1/////
OLCP
40
·
I
OTE
OLC
37
38
I
//////////////////////11/////////////////1//1////1///1////1/////
///1/////1///////1/1/1///////111///1/1/1/////////////1////1/////
46
47
50
XNAD
XNTC
XLB
XEAB
XNMO
XLCE
I//////~///////////////I
1XNFC 1::1J:
XNON
I
XNSN
11/1/////1//11/////////1/1///////1/1/1//////11//11///1////1/////
51
•
I
XLL
11/1//////11/////1/////1/1/////////1///1
48
49
1
XLC
XLCP
/////////1//1/11////1////1///11///////////1/1////1///11/////////
///1//////1/1////1/1/////////1/////1/////////////////1////1/////
59
I LTC
ILTB
ILTP
60
•
ILTL
/1/1////////////////111/////////11/1/////1/1/////////1/1//1/////
/1/1/////1/1///1/////////////1//1////////////////////1/1//1/////
65
OLTC
Figure 1.LT-1.
SM-0045
OLTL
Link Interface Table (LIT)
1.LT-2
OLTB
(continued)
o
16
8
20
66
24
32
OLTP
40
63
46
////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////
69
XONE
70
ZRO
71
XCKS
72
XLTB
XLTL
///////////////1
73
STAT
74
POD
Figure
1.LT-1~
Field
Link Interface Table (LIT) (continued)
Description
LTINT
o
o
Channel interrupt flag. Set by EXEC upon
completion of 0/1, cleared by SCP.
LTCHN
o
1-6
Channel pair number (input channel number
divided by 2). (SCP)
LTCHO
o
8-15
Channel ordinal (used with lOP)
LTCHT
o
16-19
Channel type (copied from LCCHT at
deadstart)
o
1
Standard channel
NSC hyperchannel
LTLID
0
24-39
Link 10 (SCP)
LTLX
0
40-63
Extension table address (SCP)
LTON
1
0
Link on flag
LTCON
1
1
Channel on flag. Set by SCP when channel
is turned on. Cleared by EXEC
LTSGZ
1
22-39
Segment size in words (SCP)
LTSZB
1
40-63
Segment size in bits (SCP)
LTMSSG
2
8-15
Maximum number of subsegments in a segment
(SCP)
SM-0045
l.LT-3
Field
---
Description
LTSSGZ
2
22-39
Subsegment size in words (SCP)
LTSSZB
2
40-63
Subsegment size in bits (SCP)
LTCBSZ
3
16-39
Channel buffer space size (SCP)
LTCBS
3
40-63
Channel buffer space base address (SCP)
LTSBT
4
0-7
Total segment buffer count
LTSBC
4
8-15
Free segment buffer count
LTSBZ
4
16-39
Segment buffer size in words (SCP)
LTSBQH
4
40-63
Segment buffer queue head (SCP)
LTDBrr
5
0-7
Total disk buffer count
LTDBC
5
8-15
Free disk buffer count
LTDBZ
5
16-39
Disk buffer size in words (SCP)
LTDBQH
5
40-63
Disk buffer queue head (SCP)
LTCKSZ
6
32-39
Checksum width
LTLXQH
6
40-63
Extension table queue head address
LTLXC
7
8-15
Extension table entry count
LTCNXT
7
16-39
Link to first active extension table (SCP)
LTNEXT
7
40-63
Link to next LIT entry (SCP)
LTIA
8
o
Input active flag (EXEC)
LTILAL
8
16-39
Input LCP absolute limit address (SCP)
LTILAB
8
40-63
Input LCP absolute base address (SCP)
LTILWC
9
46-63
Input LCP word count (EXEC)
LTISSZ
10
0-15
Input subsegment size in words (SCP)
LTISAL
10
16-39
Input segment absolute limit address (LCP)
LTISAB
10
40-63
Input segment absolute base address (LCP)
SM-0045
l.LT-4
Field
Word
Bits
Description
LTISWC
11
46-63
Input segment word count (EXEC)
LTISSN
12
8-15
Current input subsegment number (EXEC)
LTISSB
12
16-39
Input subsegment base address (EXEC)
LTISSL
12
40-63
Input subsegment limit address (EXEC)
LTIERC
14
0-15
Input error retry count (EXEC)
LTITE
14
16-39
Input total error message count (EXEC)
LTITM
14
40-63
Input total non-error message count (EXEC)
LTITSS
15
8-39
Input total subsegments count (EXEC)
LTITS
15
40-63
Input total segments count (EXEC)
LTILC
16
0-15
Input LCP buffer word count (SCP)
LTILL
16
16-39
Input LCP buffer limit address (SCP)
LTILB
16
40-63
Input LCP buffer base
LTIEAB
17
40-63
Input LCP extension absolute base address
(SCP)
LTILCE
18
0-55
Input LCP extension buffer (EXEC)
LTINFC
18
56-61
Input LCPE function code
LTINMD
18
62-63
Input LCPE mode (EXEC)
LTINTC
19
0-7
Input LCPE network trunk control (EXEC)
LTINAD
19
15
Input LCPE associated data flag (EXEC)
LTINDN
19
32-47
Input LCPE destination (EXEC)
LTINSN
19
48-63
Input LCPE source number (EXEC)
LTILCP
21
0-63
Input LCP buffer area (SCP)
LTOA
27
o
Output active flag (EXEC)
LTOLAL
27
16-39
Output LCP absolute limit address (SCP)
LTOLAB
27
40-63
output LCP absolute base address (SCP)
SM-0045
l.LT-5
add~ess
(SCP)
Field
---
Word
Bits
Description
LTOLWC
28
46-63
Output LCP word count (SCP)
LTOSSZ
29
0-15
Output subsegment size in words (SCP)
LTOSAL
29
16-39
Output segment absolute limit address (SCP)
LTOSAB
29
40-63
output segment absolute base address (SCP)
LTOSWC
30
46-63
output segment word count (SCP)
LTOSSN
31
8-15
Current output subsegment number (EXEC)
LTOSSB
31
16-39
output subsegment base address (EXEC)
LTOSSL
31
40-63
Output subsegment limit address (EXEC)
LTOERC
33
0-15
output error retry count (EXEC)
LTOTE
33
16-39
output total error message count (EXEC)
LTOTM
33
40-63
Output total non-error message count (EXEC)
LTOTSS
34
8~39
Output total subsegments count (EXEC)
LTOTS
34
40-63
output total segments count (EXEC)
LTOLC
35
0-15
output LCP buffer word count (SCP)
LTOLL
35
16-39
Output LCP buffer limit address (SCP)
LTOLB
35
40-63
Output LCP buffer base address (SCP)
LTOEAB
36
40-63
LTOLCE
37
0-55
Output LCP extension absolute base address
(SCP)
Output LCP extension buffer (EXEC)
LTONFC
37
56-61
Output LCPE function code (EXEC)
LTONMD
37
62-63
Output LCPE Mode Exec
LTONTC
38
0-7
output LCPE network trunk control (EXEC)
LTONAD
38
15
Output LCPE network associated data
LTONDN
38
32-47
output LCPE network destination (EXEC)
LTONSN
38
48-63
Output LCPE network source number (EXEC)
SM-0045
1.LT-6
Field
Word
-
Bits
Description
LTOLCP
40
0-63
Output LCP buffer area (SCP)
LTXLC
46
0-15
Output LCP buffer word count (EXEC)
LTXLL
46
16-39
Output LCP buffer limit address (EXEC)
LTXLB
46
40-63
Output LCP buffer base address (EXEC)
LTXEAB
47
40-63
Error LCP extension absolute base address
(SCP)
LTXLCE
48
0.... 55
Error LCP extension buffer (EXEC)
LTXNFC
48
56-61
Error LCPE function code (EXEC)
LTXNMD
48
62-63
Error LCPE Mode Exec
LTXNTC
49
0-7
Error LCPE network trunk control (EXEC)
LTXNAO
49
15
Error LCPE network associated data
LTXNDN
49
32-47
Error LCPE network destination (EXEC)
LTXNSN
49
48-63
Error LCPE network source number (EXEC)
LTXLCP
51
0 ... 63
Error LCP buffer area (EXEC)
LTILTC
59
0-15
Input LTP buffer word count (SCP)
LTILTL
59
16-39
Input LTP buffer limit address (SCP)
LTILTB
59
40-63
Input LTP buffer base address (SCP)
LTIL'l'P
60
0-63
Input LTP buffer area (SCP)
LTOLTC
65
0-15
Output LTP buffer word count (SCP)
LTOLTL
65
16-39
Output LTP buffer limit address (SCP)
LTOLTB
65
40-63
Output LTP buffer base address (SCP)
LTOLTP
66
0-63
Output LTP buffer area (SCP)
LTXONE
69
0-63
Error - all ones pattern
LTZRO
70
0-63
Error - all zeros pattern
LTXCKS
71
0-63
Error - checksum
SM-0045
1.LT-7
Field
Word
Bits
DescriEtion
LTXLTL
72
16-39
Error - LTP limit address
LTXLTB
72
40-63
Error - LTP base address
LTSTAT
73
0-63
Hyperchannel status word (EXEC)
LlrpOD
74
0-63
Channel POD table (SCP)
SM-0045
l.LT-8
1.LX
LINK INTERFACE EXTENSION TABLE - LXT
The Link Interface Extension Table is STP resident. It is used only by
the Station Call Processor and contains SCP working storage. Also
contained in each LXT entry are eight input stream LSTs and eight output
stream LSTs. An LXT entry is assigned to an active LIT entry for each
front-end 10 at LOGON and deassigned at LOGOFF.
o
o
LID
IAST~I~I
2
16
8
,
24
32 34
48
40
1/////////////////1 CHN I
IACT
1////////////1 CKSZ
STYP
56
63
LT
1////////////////////////
RSTQ
3
///////////////1
4
////////////////////////////////////////////////////////////////
5
///////////////1
6
///////////////////////////////////////1
7
///////////////1
8
/////////////////////1
9
///////////////1
10
///////1
11
///////////////1
12
///////////////////////////////////////1
WQH
13
///////////////////////////////////////1
RQH
14
///////////////////////////////////////1
SQH
15
///////////////1
NEXT
16
17
18
AIST I
LMIS I
OMIS I
I
LMOS I
ESBC
SLWA
ESBZ
CNXT
I RNSS
RSIO
RSGN
I
I
RMN
I
RMC
I
RMSC
RSBC
////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////
22
VRMZ
I
23
XMN
1/////////////1
I
PRMC
PRMZ
RSBZ
SSIO
SOlD
SSTN
I
VRMC
I SNSS
SSGN
I
RSBB
SMN
I
SMC
I
SMSC
SSBC
////////////////////////////////////////////////////////////////
27
SISC
Figure 1.LX-1.
SM-0045
ESBB
I
ROSC
26
ORMC
SSZB
20
25
LSSZ
LOSZ
SZB
RISC
24
LMSS I
OMOS lOMAS 1////////////////////////
19
21
LMAS I
SGB
RDIO
RSTN
AAST 1////////////////////////
AOST I
Link Interface Extension Table (LXT)
1.LX-1
o
8
16
32 34
SOSC
24
28
40
48
56
63
29
////////////////////////////////////////////////////////////////
30
///////////////////////////////1 PAMZ
1
PAMC
31
/////////////////////1
I
SSBB
32
///////////////////////////////////////1
ISQH
33
///////////////1
RTN
34
35
ISTN
-LST
1////////111111111111111/11111111
ILS
11111111111111111111111111111111111111111111111111111/11/111/11/
1ST
36
•
SSBZ
/////////11//1/1/////////////////1/////////1////////////////////
11111111//11111111/111111/1/111111/1111/1/11111111//1/11/111/11/
132 11/1/1111///111111111111/1//11111111//11
OSQH
133 //1//1//111//1////1/////1//1///1/////11///1//1/1/1///////1/1////
134
OSTN
1///1///////1////////11/1/1////11
OLS
135 1/1///////11//////////////////////1////////1/1///////1/1///1/1//
CST
136
·•
//////////1////////////////1//////1///////////////1/////////////
11111/1/1111/1////1/////////11/1//////1//////1/1/1/1/1/////1/11/
232
RLTP
235
SLTP
238
OPSV
239 111111//1/1/1/111/1///11//1/111////11/1///11/11/1///111/11//1///
240
Figure 1.LX-1.
SM-0045
SSEG
Link Interface Extension Table (LXT)
1.LX-2
(continued)
Field
--.-.
Word
Bits
Description
LXLID
o
0-15
Link ID
LXCHN
o
34-39
Channel pair number
LXLT
o
40-63
LIT address
LXIAST
1
o
Interactive request received flag
LXSTYP
1
1-2
Station Type
o
1
2
Batch only
Interactive only
Both
LXIACT
1
3-18
Interactive message count
LXCKSZ
1
32-39
Checksum width (0, 8, 16, 32, or 64)
LXRSTQ
2
0-63
Interactive restart Q control word
2
2
2
0-15
32-47
48-63
LXAIST
3
16-23
Current active input streams
LXAOST
3
24-31
Current active output streams
LXAAST
3
32-39
Current total active streams
LXLMIS
5
16-23
Logon maximum active input streams
LXLMOS
5
24-31
Logon maximum active output streams
LXLMAS
5
32-39
Logon maximum total active streams
LXLMSS
5
40-47
Logon maximum subsegments
LXLSSZ
5
48-63
Logon subsegment size
LXLDSZ
6
40-63
Maximum output dataset size (in
5l2-word blocks)
LXOMIS
7
16-23
Operator maximum active input streams
LXOMOS
7
24-31
Operator maximum active output streams
LXOMAS
7
32-39
Operator maximum total active streams
LXNRM
LXRSQT
LXRSQH
SM-0045
Number of messages
Q Tail
Q Head
1.LX-3
Field
Word
Bits
Description
LXSGZ
8
22-39
Segment size in words
LXDRMC
8
40-63
Deferred received message code
LXSZB
9
16-39
Segment size in bits
LXSSZB
9
40-63
Subsegment size in bits
LXSLWA
10
8-31
LWA+1 of segment
LXESBC
10
32-63
Diagnostic echo segment bit count
LXESBZ
11
16-39
Diagnostic echo segment size
LXESBB
11
40-63
Diagnostic echo segment address
LX~H
12
40-63
Waiting SOT queue head address
LXRQH
13
40-63
Receiving SOT queue head address
LXSQH
14
40-63
Sending SOT queue head address
LXCNXT
15
16-39
Link to next active LXT entry for this
channel
LXNEXT
15
40-63
Link to next available or active LXT
entry
LXRDID
16
0-15
Received destination identifier
LXRSID
16
16-31
Received source identifier
LXRNSS
16
32-39
Received number of subsegments
LXRMN
16
40-47
Received message number
LXRMC
16
48-55
Received message code
LXRMSC
16
56-63
Received message subcode
LXRSTN
17
0-7
Received stream number
LXRSGN
17
8-31
Received segment number
LXRSBC
17
32-63
Received segment bit count
LXRISC
19
0-63
Received input stream control bytes
SM-0045
1.LX-4
Field
Word
Bits
Description
LXROSC
20
0-63
Received output stream control bytes
LXVRMZ
22
0-7
Verify received message code maximum
value
LXVRMC
22
8-31
Verify received message code table
address
LXPRMZ
22
32-39
Process received message code maximum
value
LXPRMC
22
40-63
Process received message code table
address
LXXMN
23
0-7
Expected message number
LXRSBZ
23
22-39
Received segment buffer size
LXRSBB
23
40-63
Received segment buffer base address
LXSDID
24
0-15
Send destination identifier
LXSSID
24
16-31
Send source identifier
LXSNSS
24
32-39
Send number of subsegments
LXSMN
24
40-47
Send message number
LXSMC
24
48-55
Send message code
LXSMSC
24
56-63
Send message subcode
LXSSTN
25
0-7
Send stream number
LXSSGN
25
8-31
Send segment number
LXSSBC
25
32-63
Send segment bit count
LXSISC
27
0-63
Send input stream control bytes
LXSOSC
28
0-63
Send output stream control bytes
LXPAMZ
30
32-39
Process acknowledged message code
maximum value
LXPAMC
30
40-63
Process acknowledged message code table
LXSSBZ
31
22-39
Send segment buffer size
SM-0045
1.LX-5
Field
Word
Bits
Description
LXSSBB
31
40-63
Send segment buffer base address
LXISQH
32
40-63
Input LST queue head address
LXLST
33
16-39
Pointer to active LST address
LXRTN
33
40-63
Return address for active LST
LXISTN
34
0-7
Input stream number
LXILS
34
40-63
Input stream LST address
LXIST
36
0-63
Input LST table
LXOSQH
132
40-63
Output LST queue head address
LXOSTN
134
0-7
Output stream number
LXOLS
134
40-63
Output stream LST address
LXOST
136
0-63
Output LST table
LXRLTP
232-234
0-63
Receive
232
233
234
0-63
0-63
0-63
235-237
0-63
235
236
237
0-63
0-63
0-63
LXOPSV
238
0-63
Save area for op requests
LXSSEG
240
0-63
"Special protocol" segment
LX RONE
LXRZRO
LXRCKS
LXSLTP
LXSONE
LXSZRO
LXSCKS
SM-0045
~
LTP
Receive - all ones pattern
Receive - all zeros pattern
Receive - checksum
Send - LTP
Send - all ones pattern
Send - all zeros pattern
Send - checksum
1.LX-6
1. MP
MEMORY
POOL - MP
Memory pool areas are surrounded by header and trailer words that control
the allocation and deallocation of the areas. A memory pool is depicted
in figure 1.MP-l.
o
o
8
16
~I//////////////I
40
63
ID
SIZE
~//////////////I
10
SIZE
n~l~~////////////I
ID
SIZE
ID
SIZE
'=ST
ST
n
ST
m
~//////////////I
Figure 1.MP-l.
Memory Pool
Field
Word
Bits
Description
MPST
O,n,etc.
o
Status of the memory area:
o
1
MPID
O,n,etc.
16-39
Available
In use
Memory pool identification:
01010101
OxOxOxOx
MPSIZE
SM-0045
O,n,etc.
40-63
Pool 1
Pool x
Size of the memory pool
l.MP-l
1.MS
MEMORY SEGMENT TABLE - MST
The MST in STP memory contains a one-word entry for each segment of memory
that has been allocated by the Job Scheduler plus additional entries that
describe free segments. MST entries are stored in ascending order
according to the beginning address of the segment (MSADDR). Any free
space between two allocated segments is consolidated and is represented by
a single entry stored in the MST between entries for the two allocated
segments. The last entry in the table is always followed by a zero word.
To provide for the case Where every allocated segment is surrounded by
free segments, the MST must have twice as many words in it as the maximum
number of allocated segments, plus two more.
o
16
TYPE
40
SIZE
Figure 1.MS-l.
63
ADDR
Memory Segment Table (MST) entry
Field
Word
Bits
Description
MSTYPE
o
0-15
Contains 0 if the segment is free;
otherwise, it contains the JXT ordinal
of the job to which the segment is
allocated.
MSSIZE
o
16-39
Number of words in the segment.
is always a multiple of 1000S_
MSADDR
o
40-63
STP-relative address of the first word
in the segment. This is always a
multiple of 1000S-
SM-0045
1.MS-l
This
1.PD
PERMANENT DATASET TABLE - PDS
The PDS in STP resident contains an entry for each active permanent
dataset. A PDS entry indicates how a dataset is accessed and, if multiple
access exists, how ~any users are accessing the dataset.
The PDS is used to control the release of OAT entries for permanent
datasets. Figure 1.PD-l illustrates the PDS.
HEADER
FULL
O·
.
8·
..
.
.
~I//////////////////////////////////////I
40
63
PDPDE
ENTRY
... UAR/ENT
o
P'.!.
~~'f .
tJSR
DSC
1////////////////////////
MRR
\:UNQ
Figure I.PD-l.
Permanent Dataset Table (PDS)
HEADER
Field
Wo,:d
Bits
Description
PDFULL
o
o
PDS full indicator; i.e., datasets
currently being accessed
PDPDE
o
40-63
Number of permanent datasets currently
being accessed: i.e., number of
entries in table
Field
-Word
Bits
Description
PDUNQ
0
0
Unique access flag
PDUSR
0
1-8
Number of users currently accessing
dataset
PDMRR
0
9
Multiread access requested
PDUAR
0
10
unique access requested
PDENT
0
11
System directory flag
ENTRY
SM-0045
1.PD-l
ENTRY
(continued)
Field
Word
Bits
DescriEtion
PDDSC
0
12 ... 39
Dataset Catalog pointer
0
0
12-35
36-39
PDDCP
PDDCE
SM-0045
DSC page number
DSC entry number
l.PO-2
1.PI
PERMANENT DATASET INFORMATION TABLE - POI
The POI (figure 1.PI-I) is a i-word STP-resident table generated during
system startup for use by the permanent dataset manager.
a
32
40
1///////1
16
a
OVP
Figure 1.PI-l.
HSP
63
DNT
Permanent Dataset Information Table (PDI)
Field
Word
Bits
Oeser iption
PlOVP
a
0-15
Number of overflow pages
PIHSP
a
16-31
Number of hash pages
PIDNT
a
40-63
DNT for DSC
SM-0045
1.PI-l
1.PM
PERMANENT DATASET DEFINITION - POD
A PDD is a parameter list that accompanies a Permanent Dataset Management
request.
The PDD illustrated in figure 1.PM-l is used for save, save input, save
output, access, access spooled, load, load input, load output, and PDN
requests.
24
SG~Ifji~ ~II\-I////I
1
32
~~NRLi'=EXO
DN
SOT
10
USR2
TXT
1////////
ED
RT
FM
OJB
8
SID
9
1////////
DID
10
JSQ
DC
TID
_ IR
12~l{1
13
NRR
TXL
IA
f~~
ENT
SF
DFR
INIT
FL
NA
TL
WT
15
MN
16
~
JCN
1////////
CL
1// / / / / / /
SYS
TPD~I
JSP
I JPL
"";[TPR
JCR
I
PR
RD
14
20
SQJ
USRI
7
18
BPG
BUF
6
17
63
1////////
PDN2
5
UQ~
56
FC
I
NPG
3
4
52
48
ST
I
PDNI
2
40
LSD
I
TPB
OLM
I RJST
!2}~ ~
I11111111
TPV
TPN 1//TPF//////////////TPC7iTPM7/TP2//TPP/~PH////////////////
///////////////////////////////////1////////////////////////////
///1////////////////////////////////////////////////////////////
24
25
//////1////////////////////////////1
ACS
SM-0045
OJSQ
DSZ
Figure 1.PM-l.
1.PM-l
I FEN
FPP
POD Format
o
8
16
24
32
26
CRT
27
ACT
28
TOM
29
MOD
Figure 1.PM-l.
40
48
52
56
63
POD Format (continued)
Field
Word
Bits
Description
PMSG
o
o
Normal completion message suppression
indicator
PMERR
o
1
Error message suppression indicator
Pt-1WAIT
o
2
WAIT flag for a disposed dataset
PMNRLS
o
3
No release of dataset on DISPOSE
PMAQR
o
4
Acquire flag for accounting
PMTP
o
5-6
Tape dataset (online/staged)
PMTCS
o
7-8
Tape dataset character set
PMEXO
o
9-10
Execute only
PMLSD
o
16-39
Temporary SDT address for load
input/output
PMST
o
40-51
Return status
PMFC
o
52-63
Function code (table 1.PM-l)
PMDN
1
0-55
Local dataset name
PMPDNl
2
0-31
Permanent dataset name; characters 1-8
PMNPG
2
32-47
Number of pages
PMBPG
2
48-63
Beginning page number
PMPDN2
3
0-39
Permanent dataset name; characters 9-15
PMBUF
3
40-63
Buffer address
SM-0045
1.PM-2
Field
Bits
Description
PMIO
4
0-47
User identification
PMSQJ
4
48-63
Job sequence number for SOT requests
PMUSRI
5
0-63
User
PMUSR2
6
0-56
User number; characters 9-15
PMTXT
7
0-23
Address of optional text field
PMFM
7
24-39
Format designator;
number~
FMCD=CD
FMCB=CB
FMBD=BD
FMBB=BB
characters 1-8
Character/deblocked
Character/blocked
Binary/deblocked
Binary/blocked
PMRT
7
40-51
Retention period; 0-4095 days
PMED
7
52-63
Edition number (0-4095)
PMOJB
8
0-55
Originating job name
PMSID
9
0-15
Source IDi 2 characters
PMDID
9
16-31
Destination IO; 2 characters
PMDC
9
32-47
Disposition code; 2 characters
DC1N=1N
DCST=ST
DCSC=SC
DCPR=PR
DCPU=PU
DCPT=PT
DCMT=MT
Job dataset
Dataset to be staged
Scratch dataset
Print dataset
Punch dataset
Plot dataset
Magnetic tape dataset
PMJSQ
9
48-63
Job sequence number
PMTID
10
0-63
Terminal 10: 1-8 characters
PMSF
11
0-63
Special forms
PMUQ
12
o
unique access required
PMENT
12
1
Enter in System Directory
SM-0045
1.PM-3
Field
Word
Bits
Description
PMIR
12
2
Immediate reply requested
PMTXL
12
3-10
Number of words of text
PMNRR
12
11
Job rerun flag; set if job cannot be
rerun (input entries only)
PMINIT
12
12
Job initiate flag; set if job has been
initiated
PMIA
12
13
Interactive flag
PMDFR
12
14
Deferred disposition indicator
PMNA
12
15
No abort flag. If set, processing
will continue even if an error is
encountered.
PMFL
12
16-31
Field length/512 (input datasets only)
PMI'L
12
32-55
Time limit (input datasets)
PMPR
12
56-63
Priority (input datasets)
PMRD
13
0-63
Read permission control word
PMWI'
14
0-63
write permission control word
PMMN
15
0-63
Maintenance permission control word
PMJCN
16
0-55
Job cl'ass name
PMCL
17
0-55
GL parameter from JOB statement
PMSYS
18
o
System job
PMJSP
18
1-8
JOB statement priority
PMJCR
18
9-24
Job class rank
PMOLM
18
25-48
Size of $OUT in 5l2-word block
PMRJST
18
49-55
Job status flag
PMTPD
19
0-1
Tape density
PMTPL
19
2-4
Tape label type
SM-0045
1.PM-4
Field
Word
Bits
Description
PMTPF
19
5-6
Tape format
PMTPR
19
7-14
Tape recovery options
PMTPB
19
15-32
Tape maximum block size in bytes
PMTPC
19
33
Tape cataloged dataset
PMTPM
19
34
Tape online maintenance access
PMTP2
19
35
Tape second device request
PMTPP
19
36-38
Tape parallel device count
PMTPH
19
39
Tape hold device assignment
PMTPV
19
40-63
Tape pointer to label definition table
PMTPN
20
0-5
Tape noise block size in bytes
PMFPE
24
36-63
First DSC page/entry for dataset
PMFPP
24
36-59
First DSC page for dataset
PMFEN
24
60-63
First entry for dataset
PMACS
25
0-15
PMDSZ
25
16-47
Number of accesses (load saved
datasets only)
Size of dataset as reflected by DSC
DAT bodies (used only When a pseudo
access is performed during the
recovery of rolled jobs)
PMOJSQ
25
48-63
Originating job sequence number
PMCRT
26
0-63
Creation time in cycles (load request
only)
PMACT
27
0-63
Time of last access in cycles (load
request only)
PMl'DM
28
0-63
Time of last dump in cycles (load
request only)
PMMOD
29
0-63
Time of last modification in cycles
(load request only)
SM-0045
1.PM-5
1.PR
PROCEDURE FILE STACK TABLE
The Procedure File Stack Table is JTA-resident and serves as a stack for
the nesting of control statement datasets. The F$PRC and F$RTN calls add
entries to and delete them from this stack.
~T
16
o
M/////////////I
RTN
1
///////////////1
DNT
7
///////////////1
ONT
Figure 1.PR-1.
40
63
I ,1/////////////////////
I LVL
DSP
nsp
Procedure File Stack Table
Field
Word
Bits
DescriEtion
PRABT
0
1
RTN abort flag
PRRTN
0
16-39
RTN return address
PRLVL
0
40-42
Current stack level (0-7)
PRONT
1-7
16-39
$CS ONT address (STP relative)
PROSP
1-7
40-63
$CS JTA save area address (STP
relative)
SM-0045
1.PR-l
I.PT
POOLTABLE- PT
The Pool Table is an STP-resident table used for memory pool management.
It is illustrated in figure l.PT-I.
HEADER
o
o
1640
58
/////////////////////////////////////////////////////////1
MAX
ENTRIES
I
SIZE
///////////////1
BASE
///////////////1
///////////////1
• ///////////////1
• ///////////////1
• ///////////////1
///////////////1
n
///////////////1·
Figure I.PT-l.
pool Table
HEADER
Field
Word
Bits
Description
PTMAX
o
58-63
Maximum valid memory pool number in
system
Field
Word
Bits
Description
PTSIZE
l-n
16-39
Size of the memory pool
PTBASE
l-n
40-63
Base address of the memory pool
ENTRY
SM-0045
I.PT-l
63
1.PU ?HYSICAL UNIT TABLE - PUT
This EXEC-resident table is used for working storage by the disk driver.
There is one entry for each disk drive in the system. The PUT is
illustrated in figure 1.PU-l.
o .EJR
ACT~I
38 LUT43 46
\( I II II II I II III I I I II I I I I I I I I II II III ICH I; I·
1
CPO
4
63
LCY
I TPC
AU
FCT
2
3
58
11111//
NTD
RSP
~I I / / / / I I / I I / I / I I / / I I 1/1I I I I 1//I / I / / / I I I I
I NTK I NSC
NCY
5
///////////////////////////////////////////////////LS~~
6
EST
7
LIT
8
OFD
I LIC
REC
RET
Figure 1.Pu-l.
ES
OFV
physical Unit Table (PUT)
Field
Word
Bits
Description
PUACT
0
0
Disk active flag
PUUP
0
1
Unit up
PUERR
0
2
Error
PURSV
0
3
unit reserved
PURM
0
4
Recovery mode
PUICH
0
38-42
Input channel number
PULUT
0
43-45
Last unit number
PULCY
0
46-57
Last cylinder
PUCPD
1
40-51
Cylinders per disk
PUTPC
1
52-57
Tracks per cylinder
PUAU
1
58-63
Blocks per allocation unit (sectors
per track)
SM-0045
1.PU-l
Field
Word
Bits
Description
PUFCT
2
0-63
Last function
PURSP
3
0-63
Last response
PONTO
4
0
Next transfer direction
PUNCY
4
40-51
Next cylinder
PUNTK
4
52-57
Next track
PUNSC
4
58-63
Next sector
PULS
5
56
Last margin late strobe flag
PUES
5
57
Last margin early strobe flag
PUOFD
5
58
Last margin offset direction
PUOFV
5
59-63
Last margin offset value
, PUEST
6
0-63
Edited status
6
6
6
6
1
2
16-39
40-63
PULIT
7
0-58
Estimated latest time of last function
completion for lost-interrupt detection
PULIC
7
59-63
Hardware input channel number
PURET
8
0-39
Time of last retry
PUREC
8
40-63
Retry count
PUERRE
PUCEF
PULSS
PUFSS
SM-0045
Error flag
Channel error flag encountered
Subsystem status, last retry
Subsystem status, first error
1.PU-2
+~~f gR~?~ ~?~r~p~ T~~~~ ~ ?f~
This table is resident in both STP and EXEC. It is used by th,e general
queuemariagel1\ent'routines
CLRQ, ENQ, andOEQ.
I"
:1
.
-
l6
Q
QIJ?'
0
NE or BL
I
'TPB
1
40
' 1
6.3
I '
or
LE
FL
PROC
J
~
~M
CNT
I
q~
RSV
3
Figure 1.QC-l.
o
(QC~)
Queue Control Table header
16
40
63
o
///////////////1
BL
1
(~llli1!11/;/1111
PSZ
.
n
11//1/1%1/1//1111111///II/II/II/ / /// /1// // II/II/III1,/,1/1///1/1/
;
.-' ,)1,
,'" ,,/ ,/ fe'
;,,,,
,:
i"
"
:/
.'./
;
.,):
.
,",
.,'
FL
"
I
,
:.'
.:'
•
,
,
J?AD
"
,';
....
:
,;
I
.;' .. ;'
,;"
:.'
/'
,I
' ; . ' ;"
Queue Control Table entry
ije:l\P~~
-----Field
Word
Bits
Description
,Qq,QJp
,",. \,: .!;
0
0-15
Queue
QP~
0
16-39
Initial number of entries in queue
qCSL
0
16-39
Backward link
,qC;LE
0
40-63
Initial length of each queue entry
Q;C~L
0
40-63
Forward link
QCTP:e
1
0-15
Task parameter block address
QCPg()C
1
16-39
Queue processor address
"~.
i.
S~-OQ~5
/:
////1//////////////////////////////////////////////////////1////
Figure 1.QC-2.
."':.~'
.'
1.QC-l
~D
(2 ASCII charac1:,ers)
QCQSP
1
40-63
External queue status pointer (links
to STP-resident SCT table)
QCQM
2
0-7
Queue maximum
QCQL
2
8-15
Current number of items in the queue
QCCNT
2
16-63
Total items ever queued
QCRSV
3
0-63
Reserved for expansion
Field
Word
Bits
DescriEtion
QCBL
0
16-39
Back ward link
QCFL
0
40-63
Forward link
QCPSZ
1
16-39
Packet size
QCPAD
1
40-63
Packet address
ENTRY
SM-0045
1.QC-2
1.QD
QUEUED DATASET TABLE - QDT
The Queued Dataset Table is an STP-resident table that describes the
multitype attributes for a dataset that has been disposed. This table is
managed by PDM and EXP. The number of entries in the QDT must be equal to
the SOT entry count.
HEADER
o
22
12
24
36
60
40
63
I1111111111111111111111111111111111111111
NAM
ENTRY
SERRIIIIIIII
USR
Figure l.QD-l.
I1111I
ODC
PDC
Queued dataset table (QDT)
QDT HEADER
Field
Word
Bits
Description
QDNAM
o
0-23
ASCII name of table, i.e., "QDT"
Field
Word
Bits
Description
QDSERR
o
0-4
STARTUP entry deactivation flags
QDT ENTRY
QDDWN
QDCRS
QOCAT
QDIDA
o
o
o
1
Down device encountered
Cross allocation found
Catastrophic error in DSC entry
Inconsistent multi type allocation
o
o
3
QDUSR
o
12-21
Number of users who have disposed the
dataset with no release
QOOOC
o
22-30
Outstanding dispose count
QDPDC
o
36-63
DSC entry of permanent version
o
o
36-59
60-63
QDPDP
QDPDE
SM-0045
2
DSC page number
DSC entry number
1.QD-l
ROLLED
INDEX - R"J 1
------_._-------~10B
1. RJ
rl~he
RJI table contains entr ies for f;:CiCh de.f. ined JXT entry descr ihing the
job assigned to the JXT ent.ry and controlling the recovery of jobs from
mass storage entries.
Entry zero fields (used for index
o
7
o
13
16
3
40
I
DN'!'
63
MSIZ
,---------------------------OLDV
////1//////1//////1/1///////////////111/11/////1
JX1'
48
------,-----------~----------~~
II/I / 1// /// / 1// I / I / / / II/I
NJXT
1
2
val~dation)
OAI
I R.JI 1/////1////11/11//11////1////11/////////11//1/
4
1111111111111111/1///11/////////1/1///////11//111///1///11111//1
5
//////////1//111/1//1//////111111///111///1///11//1/11/11/1/////
Figure 1.RJ-1..
Rolled Job Index (RJI) entry zero fields.
Field
Word
Bits
Descripti0t!
RJNJXT
o
0-15
Number of JXT ente ies i.n the last
Deadstarted system
RJMSIZ
o
40-63
Memory size at last Deadstart
RJOLDV
1
0-63
Device name containing index for $ROLL
dataset
RJOAI
2
48-63
First (or only) AI in $ROLL index
RJLJXT
3
0-6
Length of JXT entry in old system
RJLDNT
3
7-12
Length of DNT entry in old system
RJLRJI
3
13-18
Length of RJ index entry in old system
SM-0045
1.RJ-l
Other entry fields
o
o
16
32
48
63
-----------------------------------------------------------DPHI
1
DPH2
2
DAI
NRCV~I//////////////~//////////////////////////////I
4
SID
TID
5
IN
6
DATE
Figure 1.RJ-2.
JSQ
Rolled Job Index (RJI) other entry fields
Field
-
Word
Bits
Description
RJDPHI
0
0-63
Word 0 of job roll DAT partition header
RJDPH2
1
0-63
Word 1 of job roll DAT partition header
RJDAI
2
0-63
First AI word from roll DAT (1-4 Als)
RJNRCV
3
0
Job irrecoverabale flag
RJSID
3
16
Station ID of job origin
RJJSQ
3
48-63
Job sequence number
RJTID
4
0-63
Terminal ID of job origin
RJJN
5
0-63
Jobname
RJDATE
6
0-63
Date/time (system generated)
SM-0045
1.RJ-2
1.RQ
REQUEST TABLE - RQT
The Request Table is an STP-resident table primarily used for disk queue
management. The RQT is illustrated in figure 1.RQ-l.
HEADER
o
16
o
20 24
32·
40
63
1////////////////////////////////////////
TN
FQL
1
I
FQH
FQT
ENTRY
TD . RER .
0
~~
.
THR
1////1
se
1
2
~.
TID
1////////////////////////
MA
DA
NBK
SBK
BUF
TRW
3
4
UNT
BLK
///////////////1
Figure
1.RQ~1.
FLK
Request Table (RQT)
HEADER
Field
-
Word
Bits
Description
RQTN
0
0-23
Table name; "RQT" in ASCII
RQFQL
1
0-15
Free queue length
RQFQT
1
16-39
Free queue tail
RQFQH
1
40-63
Free queue head
SM-0045
1.RQ-l
ENTRY
Field
Word
Bits
DescriEtion
RQTD
0
0
Transfer direction
RQRER
0
1
Reread flag
RQTHR
0
2-18
Streaming threshold
RQUNT
0
24-31
Unit number
RQTID
0
32-39
Requesting task ID
RQSC
1
0-15
Sector count
RQDA
1
16-39
Disk address
RQMA
1
40-63
Memory address
RQNBK
2
0-15
Block count
RQSBK
2
16 .... 39
Starting block
RQBUF
2
40-63
Buffer address
RQTRW
3
0-63
Task reply word
3
3
3
0-23
24
25-39
RQDNT
3
40-63
DNT address (STP relative)
RQBLK
4
16-39
Backward link
RQFLK
4
40-63
Forward link
RORET
RQRCL
RQJXT
SM-0045
Caller's return address
Recall reply flag
JXT offset for job-related requests
1.RQ-2
I.SBU
SYSTEM BILLING UNIT TABLE - SBU
The SBU table is an STP-resident table which contains the values obtained
when system billing units are calculated for system resources.
0
63
0
TSX
1
TSW
2
TSD
3
TWJ
4
lOB
5
lOR
6
MXM
7
MIM
8
oPC
9
CLC
10
MRD
11
PFA
12
PFS
13
TFS
14
BRF
15
BSF
Figure 1.SBU-l.
SM-0045
System Billing unit Table (SBU)
1.SBU-l
Field
Word
Bits
Description
SBUTSX
a
0-63
Time spent executing in CPU
SBUTSW
1
0-63
Time waiting to execute
SBUTSD
2
0-63
Time waiting for I/O
SBU'rWJ
3
0-63
Time waiting for JXT
SBUI0B
4
0-63
Disk blocks moved
SBUI0R
5
0-63
Physical I/O requests
SBUMXM
6
0-63
Maximum memory used
SBUMIM
7
0-63
Minimum memory used
SBUOPC
8
0-63
Open calls
SBUCLC
9
0-63
Close calls
SBUMRD
10
0-63
Memory resident datasets
SBUPFA
11
0-63
Permanent file space accessed
SBUPFS
12
0-63
Permanent file space saved
SBUTFS
13
0-63
Temporary file space used
SBUBRF
14
0-63
Blocks received from front end
SBUBSF
15
0-63
Blocks sent to the front end
SM-0045
1.5BU-2
1.SC
SUBSYSTEM CONTROL TABLE - SCT
This table is resident in both STP and EXEC.
0
0
1
SSID
15
I
40
34
CHN I
28
I STAT
///////////////1
2 ~/////////////I
UP
3
63
FL
PSZ
CIP
OSZ
COP
RSV
Figure l.SC-l.
Subsystem Control Table (SCT)
Field
---
Word
Bits
Description
SCSSID
0
0-15
Subsystem 10 in ASCII
SCSTAT
0
28-33
Subsystem Status (STP read only)
0
0
0
31
32
33
SCCHN
0
34-39
Input channel number
SCFL
0
40-63
Forward link to another SCT
SCPSZ
1
16-39
Input pocket size
SCCIP
1
40-63
Input pocket address
SCUP
2
0
Subsystem up flag (STP use)
(0 = DOWN, 1 = UP)
SCOSZ
2
16-39
Output pocket size
SCCOP
2
40-63
Current output pocket address
SCRSV
3
0-63
Reserved for expansion
SCIR
SCRST
SCDOWN
SM-0045
Input ready flag
Subsystem restart flag
Subsystem down flag
(0 = UP, 1 = DOWN)
1.SC-l
1.SO
SYSTEM OATASET TABLE - SOT
An SOT entry is created in System Task Processor (STP) resident memory for
each dataset that is spooled to or from a front~end system.
For staged datasets that are submitted as jobs to the CRAY-l, the first
control statement (the JOB statements) must be cracked to obtain job
scheduling information.
o
o
12
7
16
32
24
OC
/
AIO~fllllllllllllll
P/'"2
NBK··
POS~I
48
40
56 58 60 63
1////////
ONT
.
I
I1111111I
I
DC
SBK
OAT
BUF
·1///////////////////////////1
ACS
SZ
////////////////////////////////////////////////////////////////
7
//////////////////////////////1
QDT
1////////////////////////
////////////////////////////////////////////////////////////////
PON
10
WAIT~TRA
TR
11
12
ID
13
USR
14
USRN·
15
TXT
JXO
16
I
TL -
18
RO
19
WT
20
MN
21
OJB
. ~IT
PR
JSQ
OJSQ
SF
.... -
26
·ORPH
OLM
1-
LST
- -IRJST
-JCN
1////////
CL
- 1////////
Figure I.S0-1.
SM-0045
I
TID
~I~///////I27
EO
DLY
OlD
23
24
RT
FL
TSB
SID
TXL
FM
17
22
NRR
1~1t/
UQ ENT
I.S0-1
SOT entry
o
7
12
16
24
32
40
111111111111111111111111111111111111
29
48
JSP
I·
QF
Figure 1.S0-1.
AUT
FLP
BLP
QC
JCR
I
IIOPPII YSIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
LK~I
56 58 60 63
SOT entry (continued)
ENTRY:
Field
Word
Bits
oescription
SOONT
o
0-63
DNT area
SOAlO
1
o
Active IIO
5 DOC
1
1-2
Open/close status (binary)
1
2
3
SOP
1
3
Type of processing, used by Oisk Queue
Manager
o
1
sone
1
16-31
In
Out
Inlout
Read
Write
Oisposition code (2 characters)
DCIN=IN
OCST=ST
DCSC=SC
DCPR=PR
DCPU=PU
OCPT=PT
DCMT=MT
Job dataset
Dataset to be staged and
made permanent
Scratch dataset
Print dataset
Punch dataset
plot dataset
Magnetic tape dataset
SDOAT
1
40-63
OAT address
SDNBK
2
0-15
Number of blocks to be read or written
SOSBK
2
16-39
Starting block number
SDBUF
2
40-63
I/O buffer address
SOPOS
3
o
Permanent dataset flag
SM-0045
1.S0-2
Field
Word
Bits
Description
SDACS
3
1-11
Dataset access flags
SDRDA
3
1
Read access flag
SDWI'A
3
2
write access flag
SDMNA
3
3
Maintenance access flag
SDSZ
3
40-63
Dataset size in 512-word blocks
SDQDT
7
31-39
Multitype flag/QDT entry index
SDPDN
10
0-63
1-15 character permanent dataset name
10
11
0-63
0-55
SDWAIT
11
59
WAIT flag for a disposed dataset
SDTRA
11
60
Transfer request issued flag
SDTR
11
61
Transfer request issued flag
SDUQ
11
62
Unique access flag
SDENT
11
63
Enter system directory flag
SDlD
12
0-63
User ID:
SDUSR
13
0-63
Characters 1-8 of user number
SDUSRN
14
0-55
Characters 9-15 of user number
SDTXL
14
56-63
Test field length in blocks
SDTXT
15
0-23
Location of text area
SDFM
15
24-39
Format designator:
SDPDNI
SDPDN2
Characters 1-8 of PDN
Characters 9-15 of PDN
FMCD=CD
FMCB=CB
FMBD=BD
FMBB=BB
SM-0045
1.SD-3
1-8 characters
two characters
Character/deblocked
Character/blocked
Binary/deblocked
Binary/blocked
Field
Word
Bits
Description
SDRT
15
40-51
Retention period (0-4095 days)
SDED
15
52-63
Edition number (0-4095)
SDJX
16
0-15
JXT offset
SDFL
16
16-31
Field length/5l2
SDTL
16
32-55
Time limit
SDPR
16
56-63
Priority
SDTSB
17
0-63
Time submitted
SDRD
18
0-63
Read permission control word
sowr
19
0-63
Write permission control word
SCMN
20
0-63
Maintenance permission control word
SOOJB
21
0-55
Originating job name
SDDLY
21
56-63
Postpone delay count
SDS1D
22
0-15
Source 1D:
SDD1D
22
16-31
Destination 1D:
SDOJSQ
22
32-47
Originating job sequence number
SDJSQ
22
48-63
Job sequence number
SDT1D
23
0-63
Terminal 1D:
SDSF
24
0-63
Special forms
SDNRR
25
o
Job rerun flag:
rerun
SD1N1T
25
1
Job initiation flag:
been initiated
SDOLM
25
10-33
Size of $OUT in 5l2-word blocks
SDLST
25
34-57
Pointer to current LST address
SM-0045
1.SD-4
two characters
two characters
eight characters
set if job cannot be
set if job has
Field
Word
Bits
Description
SDRJST
25
58-63
Status flag set by recovery of rolled
job
o
1
2
3
4
5
6
7
8
Never initiated
Rerun by system recovery
Job not recoverable or rerunnable
Job statement error
Roll in error-rerun
Roll in error - not rerunable
Class error - fits no class
Class error - no class cl
Class error - doesn't fit cl
SDJCN
26
0-55
Job class name
SDCL
27
0-55
CL parameter from JOB statement
SDIA
28
o
Interactive job, if set
SDOPP
28
1
Operator raised priority to 15, if set
SDORPH
28
2
Orphan job, if set
SDSYS
28
3
System job, if set
SDJSP
28
40-47
P parameter from JOB statement
SDJCR
28
48-63
Job class rank
SDAUT
29
40-63
AUT pointer (used for interactive only)
SDLK
30
o
Lock flag
SDQF
30
1-6
Queue flags
30
30
30
30
30
30
1
2
3
4
5
6
SDQC
30
7-15
Queue count; used in queue head only
SDBLP
30
16-39
Backward link pointer
5DFLP
30
40-63
Forward link pointer
SDI
SDO
5DE
SDQ
SDR
5DS
SM-0045
Input
Output
Execution
Request
Receiving
Sending
1.5D-5
1.ST
SYSTEM TASK TABLE - STT
The System Task Table (STT) is an EXEC-resident table used by EXEC for
scheduling and controlling tasks. The table has three parts: a header, a
part containing a parameter area for each task, and a part containing the
exchange packages for each task. The STT is illustrated in figure 1.ST-l.
HEADER
o
7 8
12
RTS~
16
24
30
36
40
44
~I//////////////////////////////////////////I
3
63
1////////////////////////////////////////
TN
2
52
DEF
AID
I
APB
1/////////////////////1
AXP
////////////////////////////////////////////////////////////////
4
BPF
ENTRY (PART A)
SUS
ROY
o " // / / /
1
I~C
2
TIME
3
NEe
4
RTQ
5
CNT
I ID
I
///////////////////////////////////////1
PRI
UJXO
BO
UJTA
UXP
UTS
LPMC
6
ENTRY (PART B)
0
/////////////////1
PC
1
/////////////////1
BA
1///1 MDE
2
/////////////////1
LA
II
3
///////////////1
I
A3
4
///////////////////////////////////////1
A4
5
///////////////////////////////////////1
AS
6
///////////////////////////////////////1
A6
7
///////////////////////////////////////1
A7
XA
I
AO
VL
1 FLG
8
SO
9
Sl
10
S2
11
S3
Figure 1.ST-l.
SM-0045
'Ii
....--='
Al
A2
System Task Table (STT)
1. ST-l
o
12
30
S4
13
S5
14
S6
15
S7
7 8
12
16
Figure 1.ST-l.
24
36
40
44
52
System Task Table (STT) (continued)
HEADER
Field
Word
Bits
Description
S'rTN
0
0-23
Table name; "STT" in ASCI I
S'rR'rS
1
0
Request task scheduler flag
STAID
1
44-51
Active task ID
s'rAPB
1
52-63
Active task parameter block address
STDEF
2
0-29
Defined task flags
STAXP
2
52-63
Active exchange package address
STBPF
4
0-63
Breakpoint flags
ENTRY (PART A)
Field
Word
Bits
DescriEtion
srfSUS
0
0
Task suspend bit
S'fRDY
0
7
Task ready request
STPRI
0
8-15
Task priority
STID
0
16-23
Task ID
STCNT
0
24-63
Task startup count
S'rBO
1
40-63
BO save area
ST'rlME
2
0-63
Cumulative execution time
S'fNEC
3
0-63
Count of normal exits from task
STRTQ
4
0-63
Task time delay queue control word
SM-0045
1.ST-2
63
Field
Word
Bits
Description
S1'U.JXO
5
0-12
User job execution table offset
STUJTA
5
13-36
User job table area
S'rUTS
5
37-51
User time slice
S1'UXP
5
52-63
User XP address within EXEC
S'fLPMC
6
0-63
Last performance monitor call
ENTRY (PART B)
Field
Word
Bits
Description
STPC
0
18-39
Program counter
STAO
0
40-63
AO
STBA
1
18-35
Base address
STAl
1
40-63
Al
S1'LA
2
18-35
Limit address
srrMDE
2
37-39
Mode flags
STA2
2
40-63
A2
srfXA
3
16-23
Exchange address
STVL
3
24-30
Vector length
S'rFLG
3
31-39
Interrupt flags
STA3
3
40-63
A3
STA4
4
40-63
A4
STA5
5
40-63
AS
S'rA6
6
40-63
A6
STA7
7
40-63
A7
STSO
8
0-63
SO
SM-0045
1.ST-3
Field
Word
Bits
Description
STSI
9
0-63
SI
STS2
10
0-63
82
STS3
11
0-63
S3
STS4
12
0-63
S4
STS5
13
0-63
S5
STS6
14
0-63
S6
STS7
15
0-63
S7
SM-0045
I.ST-4
1.TB
TASK BREAKPOINT TABLE - TBPT
The TBPT table is an EXEC-resident table used by EXEC for interactive
debugging using breakpoints.
Figure 1.TB-l. illustrates the TBPT.
HEADER
o
o
16
24
40
63
--------------------------------------------------------------NM
SCXP
11111111111111111
IDLE
1
EN'1'RY
o
INST
ADR2
Figure 1.TB-I.
ADRl
Task Breakpoint Table - TBPT
HEADER
Field
Word
Bits
Descri}2tion
TBNM
a
0-23
Table name; "TBP" in ASCII
TBSCXP
a
40-63
Station control word address
TBIDLE
1
0-63
Idle flag; invokes alternate part of
task scheduler.
Field
Word
Bits
Descri}2tion
TBINST
a
0-15
Instruction replaced by breakpoint
TBADR2
a
16-39
Address of breakpoint used to reset
first breakpoint
TBADRl
a
40-63
Address of breakpoint
ENTRY
SM-0045
1.TB-l
LOADER TABLE DESCRIPTIONS
2.1
2
INTRODUCTION
A relocatable binary program consists of a single record composed of a
series of tables. Nine types of tables are currently defined:
Acronym
BRT
DIR
DMT
OPT
PDT
SMT
TXT
XRT
I
I
Table
t~~e
(octal)
Name
Block relocation table
Directory (BUILD)
Debug map table
Duplication table
Program description table
Symbol table
Text table
External relocation table
Reserved for user
15
10
7
13
17
11
16
14
12
The first table in a relocatable module is the program description table
(PDT). The relocatable code, itself, is contained in one or more text
(TXT) tables.
Each table has a prefix word that contains the table type in the leftmost
four bits and the table word count in the next 24 bits. The word count
serves as an offset to the beginning of the next table.
SM-0045
2.1-1
2.BRT BLOCK RELOCATION TABLE - BRT
o
we
15
1
2
~Jf-~-==~~==-=-1~
QWA
BI
wc-~ ~
Word
0
0
32~38
1,2,
... WC-l
7,39
SM-0045
I I
Block Relocation Table - BRT
Bits
0-3
4-27
0-6,
32-38
QWA 1,2 ... n
--"':::'-";"~-------I
~~··-++-i
i'---____
BI 1,2 ... n ...1,2,
WC-l
Q1,2 ... n
7'--+T--
_____. _._ _
Figure 2.BRT.
Field
TT
WC
BI
0
-
1,2,
... WC-l
8-31,
40-63
Descri~tion
Table type; 15
Table word count
A relocation quantity to be added to the
QWAs to obtain the addresses of the fields
to be modified.
Block index; specifies a block base address
to be added to the relocation field as the
relocation address.
Relocation mode:
0 Word address relocation is performed
on relocation field.
1 Quarter word address relocation is
performed.
Word address relocation is generally used
to relocate the address in memory read and
store instructions. Quarter word address
relocation is generally used to relocate
addresses in branch instructions.
Quarter word address; indicates the parcel
address of a field relative to the block BI
to be modified.
QWA is composed of a 22-bit word address and
a 2-bit field specifying the parcel. Parcels
are located within words as follows:
2.BRT-l
o
N-l
N
.... ...
~
N
3
N
--------
--------
........
.. ..... .
1 N
2
--------
........
. ...... .
........
.. ... ...
The rightmost bits of the parcel indicate
the rightmost bits of the field to be
relocated. The relocation is 22 bits
wide. Relocation across a word boundary
occurs if parcel 0 is specified.
SM-0045
2.BRT-2
2.DIR DIRECTORY - DIR
(BUILD)
BUILD is an operating system utility program for generating and maintaining
library datasets. BUILD generates a directory file consisting of a one
word header fo 11 owed by one va ri,ab 1e- 1ength entry for each program in the
library dataset. A program record's entry may have any length from 3 to
66048 words.
O~~~DU~~~~
____~____________4 -__________~______~
Header
1 ~~--------~------~------~----4-____~____~____~~
2 I__~~____________________~~_________________________ I
I
3~~~_ _~______~~____~~_ _~
Entry 1
I
Entry 2
SM-0045
2.DIR-l
I
Entry n
I
Word
Bits
Description
TT
DWC
1D
o
o
o
0-3
16-39
40-63
Tab 1e type: lOs
Directory's word count
lD01' in ASCII. The 01 indicates the
BUILD revision level, thus specifying the
directory forma~.
TYPE
1
BvC
XL
1
0-3
4-24
25-39
40-54
55-63
0-63
0-3
Entry type: 1
Entry's word count, 66048 maximum
Number of external names, 32767 maximum
Number of entry names, 32767 maximum
Number of block names, 511 maximum
8-character name of program module
Entry status: 1
Load module flag (LDR set and used)
1
EL
BL
FN
STAT
LM
1
1
3
4
FWC
3
4-30
FWA
3
31-63
2
3
Program module's maximum word count,
134 x,10 6 (an approximate value for
information only)
Program module's location, 17 x 109
maximum
Any of the three sets of names (block, entry, or external) may be null.
Each name is 1 to 8 ASCII characters, left justified with zero fill. No
blank characters are used.
SM-0045
2.DIR-2
Block names represent FORTRAN references to BLOCK DATA subprograms and
labeled common.
Entry names correspond to names of main programs and subroutines and to
names of any labeled common blocks that are initialized by DATA statements.
External names represent references to entry names in other programs.
SM-0045
2.DIR-3
2.DMT
DEBUG MAP TABLE - DMT
o
1
2
3
4
•
I
:~~ i~~~~~~N~:~~~__~_BL_E~Nn~~~
Figure 2.DMT-l.
Fi el d
TT
WC
OVF
ONAM
CBF
BNAM
BLEN
SM-0045
Debug map table - DMT
Word
Bits
Description
a
a
0-3
4-27
1
a
2
3,5,7 .. WC-2
3,5,7 .. WC-2
4,6,8 .. WC-l
0-63
Table type; 7
Table word count
Overlay flag; set if overlays exist
Overlay name in ASCII
Common block flag
Block name in ASCII
Length of block in words
a
1-63
40-63
2 .DI~T-l
2.DPT DUPLICATION TABLE - OPT
28
32
40
~~
we
-~~~l
I
:I
WC-l
NDUP
Figure 2.DPT.
INC 1,2 ... n
Word
o
o
1,2, ...
SM-0045
Bits
0-3
4-27
0-7
WC-l
NDUP 1,2 ... n 1,2, ...
WC-l
1,2, ...
BI 1,2 ... n
WC-l
SWA 1,2 ... n
I
I
,
I
[INC±-
Field
TT
WC
63
1,2, ...
WC-l
8-31
32-38
40-63
n
I
BI n
IJ
SWAn
I
Duplication Table - OPT
Description
Table type; 13
Table word count
Increment between stores of the source
word. No duplication occurs if a zero
increment is specified.
Number of times the word at SWA is duplicated. NDUP must be nonzero.
Block index; specifies the block whose
base address is added to SWA in obtaining
the word to be duplicated.
Source word address; the address of the
word that is duplicated. Duplication
is performed before relocation or
external linkage in the load process.
2.DPT-l
2.PDT PROGRAM DESCRIPTION TABLE - PDT
28~~
16
o
we
1-.....1.-.----_ _ .___ ..._
41Lf2
p6
BL
63
~_~__.~ __E_L_ _+-~_ _ _
I
I
PGMN
1
2
3
4
BLKLI
5
Blocks
.. _ - - - - - - - - - - - - - - - - 1
BL-l
BL
BL+l
BL+2
BL+3
BLKN
~BL.KD
~~,-..L
~~If0l....c...i.;_n_ _B_LK~Ln'----_ _ _
-
I
ENTNI
Entry
names
BL+EL-2
BL+EL-l
BL+EL
BL+EL+l
ENTVm
External
names
BL+EL+XL
I
EXTN
BL+EL+X~+lr--------------__-------H-D-R~~-----------------------I
WC-l
HDRq
Figure 2.PDT-l.
SM-0045
Program Description Table - PDT
2.PDT-l
Header
words
Field
TT
we
XL
EL
BL
PGMN
AF
Word
o
o
o
o
o
1
2
Bits
0-3
4-27
28-41
42-55
57-63
0-63
o
FE
2
1
ORG
PRGL
BLKN 1!t2 ... n
BLKD 1,2 ... n
2
16-39
40-63
0-63
35
2
3,5,7 .. .
4,6,8 .. .
Description
Table type; 17
Table word count
Word count for external names
Word count for entry names
Word count for block information
Program name
Absolute flag; set to 1 if code has no
BRT or XRT tables.
Fatal error flag; set to 1 if fatal
compile/assembly errors occurred. The
loader ignores the binary record.
Origin of absolute blocks
Program length in words
Block name
Reserved for dynamic common block indicator; not used by COS loader.
Length in words of named common block
Entry name
ENTN 1 ,2 ... m ~~~~~+4,
40-63
0-63
BL+2,+5,
55
Primary entry flag. If this bit is set,
this entry is the primary entry of the
current load. The Loader transfers control
to the first encountered primary entry.
56-62
Block index; specifies the block containthe named entry. Associated with the block
is a block address used to modify the entry
value when it is used to satisfy externals
of the same name.
The 7-bit BI field used in all table
entries defines a relocation quantity as
follows:
o None
1
Negative to the program block
2
Positive to the program block
3
Positive to common block 1
BLKL12
, .•• n 4,6,8 ...
PE 1,2 ... m
BI 1,2 ... m
+8 ...
BL +2, +5,
+8 •.•
.
Q1,2 ... m
SM-0045
BL+2,+5,
+8 ...
63
127 Positive to common block 125
The Q field determines the relocation
mode of the entry va'lue. If the bit is
set, the entry value is a parcel address
and the block address is justified before
relocation. If clear, relocation is
performed with a word address. Note that
if BI=O, the entry value is not modified.
2.PDT-2
Description
ENTV 1 2
EXTN 1,2 ... p
Entry value. This is a 64-bit quantity
associated with the entry name. For
satisfying externals, an entry relocation
quantity is determined by adding a BI
block address to the entry value.
External name. A name is t through 8
characters, left justified with zero fill.
The string must not include the space
character. Blank common is indicated
in the tables either by a zero word or
by the name II.
PDT header data. See figure 2.PDT-2.
0-63
BL+3,+6,
, .•. m+ 9
0-63
BL+EL+l,
+2 ...
HDR 1,2 ... q BL+EL+XL+l 0-63
through WC-l
-----------------
D
D
M
M
[),
D
1
D
[),
[),
0 M
1 H
M
C
0
M
t·1
I
[),
1
I
I
H
S
4
[),
[),
[),
5
C
A
6 7
6
L
2
1
/
y
y
Date and timp. of compilation
S S
--------
6
N
y
/
[),
[),
COS revision 1evel
COS assembly date
N
y
[),
[),
0
0
[),
[),
i
I
7
0
-~.. ~
8
0
..• 0
9
0
10 0
11 C
T
0
E
S
I
rJ
N<20
I
I
... 0 I
G H I
y
[),
'R
C
H
[),
9
7
6
... 0
------------
[),
P Y R
C R A
E A R
C - - -1 -
Processor name and version
Processor level (Julian date or
modification level)
Reserved for future use - hardware
dependencies, etc.
0-80 characters of user comment left
justified, blank filled
Figure 2.PDT-2.
SM-0045
PDT header data
2.PDT-3
2.SMT SYMBOL TABLE - SMT
A relocatable file may contain symbol table information for each program unit
in a compilation. The information is in table type 11. A type 11 table
consists of two parts: a subroutine table and one or more common block
tables.
Subroutine table
The subroutine table contains information about the subroutine block, the
common block(s) referenced by the subroutine, and the local symbols.
Figure 2.SMT-l illustrates the basic format of the subroutine table;
for more detail, refer to the figures named in figure 2.SMT-l.
o
header
(figure 3)
CML
symbol
descriptors
(figures 4 and 5)
CML+SYL
dimension
descriptors
(figure 6)
auxil iary data
WC-l
Figure 2.SMT-l.
SM-0045
Subroutine table
2.SMT-l
Common block table
The common block table contains information about a specific common block
referenced within a subroutine and the symbols that the common block
contains. In a symbol table there is one common block table for each
common block named in the subroutine table. The final word of the common
block table, field THC, gives the common block table checksum. Figure
2.SMT-2 illustrates the basic format of the common block table.
o
header
(figure 7)
CML
symbol
descriptors
(figures 4 and 5)
CML+SYL
dimension
descriptors
(figure 6)
auxil iary data
WC-l
table checksum
Figure 2.SMT-2.
SM-0045
Common block table
2.SMT-2
o
4
16
10
WC
SYL
OIL
SN
3
• t
CML-~ 1~
_______________________c_NA_M_n______________________~
Figure 2.SMT-3.
Field
Subroutine table header
Word
Bits
Description
TT
WC
BI
o
o
o
0-3
4-27
32-38
CML
DBF
o
39-46
1
o
SYL
DIL
PL
PEA
SN
CNAM 1 CNAM n
1
1-16
17-31
32-39
40-63
0-63
0-63
Tabl e type; 11
Table word count
Block index. This is an index into the
subroutine table common block name list
(the same list as contained in the PDT
tab 1e) .
Length in words of named common block
Dynamic block flag
o Static
1 Dynamic
Symbol block length
Dimension block length
Prologue length (parcel)
Primary entry address (parcel)
Subroutine name
Name(s) of common block(s) referenced
by the named subroutine
SM-0045
1
1
1
2
3, ... ,
CML-l
2.SMT-3
Symbol descriptors
Words CML through CML+SYL+l contain descriptors of local symbols. Each
descriptor (figure 2.SMT-4) may be 3 through 6 words long, depending on
the symbol length. In addition, a dimensioned variable symbol points to
a group of words in the dimension block for its dimension information.
49
SI
S2
EL
ure 2.SMT-5
SNAM
Figure 2.SMT-4.
Field
SL
ST
SM-0045
Word
SI
SI
Bits
0-1
2-6
Symbol descriptor format
Description
Symbol name length-l in words
Symbol type
o Unknown
1 Program (externa 1 )
2 Entry poi nt
3 Label
4 Integer
5 Real
6 Comp1 ex
7 Logical
8 Character
9 Bi t (Boo1 ean)
10 Fi 1e
11 Poi nter
12 DP integer
13 DP real
14 DP complex
15 Structure
16 Address
2.SMT-4
63
Field
Word
Bits
Description
CL
51
7-10
Symbol class
o Constant
1 Register
2 Norma 1
3 Stack
4 Based pointer
S Based descriptor
DA
51
11
AM
51
12
EQ
51
13
PSI
51
14-29
NO
ASM
51
30-32
33
OBI
EL
SNAM
SM-0045
SI
52
34-48
49-63
0-63
53-56
0-63
51
SI
Dummy argument (parameter). If nonzero, the symbol is a dummy argument.
Argument mode
o Address
1 Va 1ue
Equivalence. If non-zero, the symbol
is equivalenced.
Parent symbol index. If non-zero,
the index is within SYL of the top
parent.
Number of dimensions
Array storage mode
o By column
1 By row
Dimension block index
Element length (in bits)
Symbol class-dependent information; see
figure 2.SMT-S.
Class
Figure
o
2 .St4T -Sa
1
2.5MT-Sb
2-5
2.5MT-5c
Symbol name. 1-4 words (32 character
maximum) in 8-bit ASCII, left-justified,
null filled to end-of-word.
2.SMT-5
Symbol class-dependent information
The contents of word S2 of the symbol descriptor are determined by the
class of the symbol. Class type may be found in field CL of the
subroutine table, word CML, bits 7-10. Classes are as follows:
o Constant value
Register
2 Normal
3 Stack
4 Based pointer
5 Based descriptor
1
Figure 2.SMT-5a, b, and c describe the formats that word 2 of the symbol
descriptor can take, based on the symbol class.
o
63
SVAL
Figure 2.SMT-5a.
Word CML+l for class
a symbols
Field
Word
Bits
Description
SVAL
CML+l
0-63
The value of the symbol
I
RT
Figure 2.SMT-5b.
Field
RT
SM-0045
Word
Bits
CML+l
34-37
I
RN
Word CML+l for class 1 symbols
Description
Register type
1 A
2 B
3 S
2.SMT-6
4 T
5 V
6 Special
Field
RN
o
Word
Bits
CML+1
38-47
10
3
B1
I
Register number or subtype. For register
types 1 through 5, RN contains a register
register number. For register type 6,
RN contains one of the following values,
right justified with zero fill:
o Vector length register
1
Vector mask register
2-31 Channel address register
32
P register
63
34
SSL
Figure 2.SMT-5c.
Field
Description
Word
Bits
B1
SSL
CML+1
CML+l
3... 9
10-33
BO
CML+1
34-63
BO
Word CML+1 for class 2-5 symbols
Description
Block index
Symbol storage length; words occupied
in storage
Bit offset; offset in bits from the
block base or from the parent symbol
base
Dimension descriptors
The dimension descriptor portion of the subroutine or common block table
contains a dimension descriptor for each dimensioned variable symbol (ND10).
Each descriptor consists of an n-word entry, 'where n is the dimension of the
variable. Figure 2.SMT-6 illustrates a dimension descriptor entry.
SM-0045
2.SMT-7
63
DO
01
On
~~~4+h4~+-------------------~~~-----------------,
LOn
~~~~~~--------~--------~~~------------------
Figure 2.SMT-6.
Field
Word
Bits
LDE
00,01, ... ,On
10
LD I
00,01 , ... ,On
11
LD
00,01, ... ,On
12-35
Dimension descriptor entry format
Description
Lower dimension expression. If LOE is
non-zero, the lowe~ dimension field
(LD) contains an index into the dimen~
sion blJock of the expression definition
required to evaluate the lower dimen~
sion. (See description of LD field.)
Lower dimension indirect. If LDI is
non-zero, the lower dimension contains
an index into a symbol list of the
symbol that contains the lower dimension
value. (See description of LD field.)
Lower dimension. The contents of LD
depend on the values of LDE and LDI.
If LDE=O and LOI=O then LO is the lower
dimension value.
If lOErO t , then lO consists of the following subfields:
12
20
I ACCl I
35
DIMI
ACCL The length in half words of
the access function
DIMI Index into OIL of the dimension
expression
t
NOTE: Cray Research software does not support lOErO or UOErO
SM-0045
2.SMT-8
Field
Word
Bits
Description
If LOItOt, then LO consists of the following subfields:
1213
35
~ B1
BI
DSI
UDE
00,01, ... ,On
38
UDI
DO,Dl, ... ,Dn
39
UD
00,01 , ... ,On
40-63
0
DBF
1111
~J
Ww
~
wc
I
SYL
Block index
Dimension symbol index
Upper dimension expression. (Same as
LDE, for upper dimension.)
Upper dimension indirect. (Same as
LOI, for upper dimension.)
Upper dimension. The contents of UD
depend on the values of UDE and UDI.
The alternative formats for UD are the
same as for LD.
16
4
OIL
32
39
47
CML
CNAM
Figure 2.SMT-7.
Field
Word
Bits
TT
WC
BI
CML
OBF
0
0
0
0
1
0-3
4-27
32-38
39-46
0
SYL
OIL
BS
CNAM
1
1
1
2
1-16
17-31
40-63
0-63
t
OSI
~
Common block table header format
Description
Table type; 11
Word count
Block index
Common block length
Dynamic block flag
0 Static
1 Dynamic
Symbol block length
Dimension block length
Block size
Name of common block
NOTE: Cray Research software does not support LDItO or UDItO
SM-0045
2.SMT-9
63
2.TXT TEXT TABLE - TXT
0
28
4
:
1
~
we
16
32
63
40
BI
19
LA
TXTW 1
I
1
,I
!
•
wc-~
t
TXTW D
I
Figure 2.TXT.
Word
Bits
BI
0
0
0
0-3
4-27
32-38
Q
0
39
LA
0
40-63
field
TT
we
TXTW 1,2 ... n 1,2 ... n
SM-0045
0-63
I
Text Table - TXT
Description
Table type; 16
Table word count
Block index; specifies the block into
which the text will be loaded.
Relocation mode of the entry name; this
field is always o.
Relative load address in block BI. LA
is always specified as a word address.
Text words to be loaded into the program
field in contiguous locations starting at
an address determined by adding LA to the
base address indicated for block BI.
2.TXT-l
2.XRT
EXTERNAL RELOCATION TABLE - XRT
o
:
4 6
28
14
34
63
144~" 1~-rl;C_- _·- _" ~_-·~. . Ll__
.-7'!-"_..
-+_L.....L-+I·_ _ _ _ _ _B"_A.!.--_ _ _ _-;
B
I I
I I
i
WC-1
Ln
i
i
BAn
Figure 2.XRT External Relocation Table - XRT
Field
TT
WC
BI 1,2 ... n
Word
0
1,2 ... n
Bits
0-3
4-27
6-12
Q1,2 ... n
1,2 ... n
13
XI 1,2 ... n
1,2 ... n 14-27
L
1,2 ... n 28-33
BA 1,2 ... n
1,2 ... n
1,2 ...
0
34-63
Description
Tab 1e type; 14
Table word count
Block index; defines a block address to
be added to a BA in obtaining the field
to be relocated (linked).
Q flag; indicates attribute of the field
to be linked. Q is set if the field
requires a parcel address. Q is 0 if
a word address is desired. The loader
adjusts the entry values in links where
the respective Q flags do not match.
External index. This is an index into
the externals list of the PDT. The
entry value corresponding to the entry
name that matches the named external in
the PDT table is used to relocate the field.
Length in bits of the relocation field. If
L=O, the relocation field is assumed to be
64 bits, otherwise, it is the length specifield by L.
Bit address of the low order bit in the
field to be relocated.
Relocation is performed in 2 s complement
arithmetic and relocation will span at most
only one word boundary.
1
SM-0045
2.XRT-l
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COS Table Descriptions Internal Reference Manual
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READERS COMMENT FORM
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