Programming Interface Information: This information is NOT intended to be used as Programming Interfaces of z/VM.

#### SYSCM

Prolog

Control Block Contents
SYSCM DSECT

Storage Layout

Cross Reference (Contains links to field and bit definitions)

#### SYSCM Prolog

     NAME       : HCPSYSCM
     DESCRIPTION: SYSTEM COMMON AREA
     DSECT      : SYSCM
     FUNCTION   : CONTAINS SYSTEM-WIDE POINTERS, VARIABLES,
                  COUNTERS, AND CONSTANTS OF WHICH THERE IS
                  ONE COPY (AS COMPARED TO PFXPG WHICH IS
                  ONE COPY PER PROCESSOR).
     LOCATED BY : PFXSYS FIELD OF HCPPFXPG
                  HCPSYSLC entry in HCPSYS
     CREATED BY : HCPSYS ASSEMBLY (SYSGEN)
     DELETED BY : NONE

#### SYSCM Control Block Content

#### SYSCM DSECT

    Hex   Dec Type/Val   Lng Label (dup)    Comments
    ---- ---- --------- ---- -------------- --------
    0000    0 Structure      SYSCM          SYSTEM COMMON AREA
    0000    0 Dbl-Word     8 SYSSTRT (0)    START OF SYSLOCS
         SYSTEM CLOCK VALUES (DOUBLE WORD ALIGNED)
    0000    0 Dbl-Word     8 SYSCLOK        LATEST TOD CLOCK VALUE STORED
    0008    8 Dbl-Word     8 SYSDATE        Current Date in the form
                                            MM/DD/YY. Users need to use the
                                            fixed window 1942 - 2041 to
                                            convert the year to a 4-digit
                                            year. Use HCPCVT to convert to
                                            other formats.
    0010   16 Dbl-Word     8 SYSTODMD       TIME OF DAY CLOCK VALUE AT
                                            MIDNIGHT
    0018   24 Dbl-Word     8 SYSTODST       TIME OF DAY CLOCK AT IPL
    0020   32 Dbl-Word     8 SYSTERM        TIME OF DAY CLOCK AT TERMINATION
    0028   40 Dbl-Word     8 *              RESERVED FOR FUTURE IBM USE
    0030   48 Dbl-Word     8 *              RESERVED FOR FUTURE IBM USE
    0038   56 Dbl-Word     8 *              Reserved for future IBM use
    0040   64 Dbl-Word     8 *              Reserved for future IBM use
    0048   72 Dbl-Word     8 *              Reserved for future IBM use
    0050   80 Dbl-Word     8 *              Reserved for future IBM use
         THIS REGION CONTAINS SYMBOLIC VARIABLES THAT CONTROL THE SYSTEM. THESE
         VALUES ARE ESTABLISHED AT SYSGEN OR AT INITIALIZATION.
    0058   88 Character    8 SYSTMID        SYSTEM IDENTIFIER
    0060   96 Character    6 SYSVOLD        SYSTEM RESIDENCE VOLUME SERIAL ID
    0066  102 Signed       1 SYSMXRTV       Maximum RETRIEVE buffers per user
    0067  103 Signed       1 SYSDFRTV       Default RETRIEVE buffers per user
    0068  104 Character    8 SYSOPER        USERID OF PRIMARY SYSTEM OPERATOR
    0070  112 Character    8 SYSDUMP        USERID FOR SYSTEM DUMP RECEIVER
    0078  120 Character   11 SYSDPID (0)    DYNAMIC PATHING GROUP IDENTIFIER
    0078  120 Character    2 SYSCPUA        CPU ADDRESS
    007A  122 Character    5 SYSCPUID       CPU IDENTIFICATION
    007F  127 Character    4 SYSTOD         FIRST HALF OF TOD CLOCK VALUE
    0083  131 Bitstring   11 SYSALTPG       SYSTEM ALTERNATE PATH GROUP ID -
                                            FOR DYNAMIC PATHING DEVICES
    008E  142 Character    2 *              (ALIGNMENT)
    0090  144 Character    6 SYSCKVOL       CHECKPOINT VOLUME SERIAL ID
    0096  150 Character    6 SYSWMVOL       WARMSTART VOLUME SERIAL ID
    009C  156 Address      4 SYSACPBK       A( Access Pointer Block )
    00A0  160 Address      4 SYSEQUID       Address of EQUAL ID table
    00A4  164 Address      4 SYSCSETB       Address of CSE ISFSYSTB Table
    00A8  168 Bitstring    1 SYSVRFSG       Preferred guest storage
                                            granularity. This is the minimum
                                            preferred guest storage size, in
                                            megabytes. The defined storage
                                            size of each V=R and V=F guest
                                            must be a multiple of this number
                                            of megabytes.
    00A9  169 Bitstring    1 SYSVRFLG       V=R Survival Flag
              1... ....      SYSVRDYN       X'80' System in Dynamic V=R
                                            Survival Mode
    00AA  170 Character    2 *              Reserved for IBM use
    00AC  172 Address      4 SYSPWCHN
    00B0  176 Character   16 SYSLOGID (0)   Field that covers file name &
                                            type
    00B0  176 Character    8 SYSLOGFN       Filename for logo configuration
                                            file
    00B8  184 Character    8 SYSLOGFT       Filetype for logo configuration
                                            file
    00C0  192 Character    8 SYSAUTID       Userid to be autologged (aka
                                            AUTOLOG1)
    00C8  200 Signed       4 SYSTYPE1       Subchannel number of Type 1
                                            subchannel
    00CC  204 Bitstring    1 SYSIID         Image ID of running system
    00CD  205 Character    3 *              Reserved for future IBM use
    00D0  208 Character    8 *              RESERVED FOR FUTURE IBM USE
    00D8  216 Character    8 *              RESERVED FOR FUTURE IBM USE
         SYMBOLIC DATE FOR EXTERNAL IDENITIFICATION
    00E0  224 Character   10 SYSWKDY        CURRENT DAY OF THE WEEK NAME
    00EA  234 Bitstring    1 SYSDAYN        DAY OF WEEK NUMBER (1-7) IN
                                            BINARY
    00EB  235 Bitstring    1 SYSDAYL        DAY OF WEEK LENGTH IN BYTES
    00EC  236 Character    3 SYSZNID        Time Zone Identifier
    00EF  239 Character    1 *              Pad character
    00F0  240 Address      4 SYSZANCR       A( time zone definitions )
    00F4  244 Address      4 *              RESERVED
    00F8  248 Character    8 *              RESERVED FOR FUTURE IBM USE
    0100  256 Character    8 *              RESERVED FOR FUTURE IBM USE
    0108  264 Character    8 *              RESERVED FOR FUTURE IBM USE
         SYSTEM-WIDE LOGICAL TERMINAL CHARACTERISTICS
    0110  272 Character    1 SYSLEND        DEFAULT LOGICAL LINE-END CHAR
    0111  273 Character    1 SYSLDEL        DEFAULT LOGICAL LINE-DELETE CHAR
    0112  274 Character    1 SYSCDEL        DEFAULT LOGICAL CHAR-DELETE CHAR
    0113  275 Character    1 SYSESCP        DEFAULT LOGICAL ESCAPE CHARACTER
    0114  276 Character    1 SYSTAB         DEFAULT TAB CHARACTER
    0115  277 Character    1 SYSALDEL       Default ASCII terminal linedel
                                            char
    0116  278 Address      1 SYSMLEVL       Default message level settings
    0117  279 Character    1 *              RESERVED FOR FUTURE IBM USE
    0118  280 Address      1 *              RESERVED FOR FUTURE IBM USE
    0119  281 Address      1 *              RESERVED FOR FUTURE IBM USE
    011A  282 Address      1 *              RESERVED FOR FUTURE IBM USE
    011B  283 Address      1 *              RESERVED FOR FUTURE IBM USE
    011C  284 Address      1 *              RESERVED FOR FUTURE IBM USE
    011D  285 Address      1 *              RESERVED FOR FUTURE IBM USE
    011E  286 Address      1 *              RESERVED FOR FUTURE IBM USE
    011F  287 Address      1 *              RESERVED FOR FUTURE IBM USE
    0120  288 Character    8 *              RESERVED FOR FUTURE IBM USE
         RDEV BLOCK POINTERS AND COUNTS
    0128  296 Address      4 SYSECONS       A(list of emergency msg consoles)
    012C  300 Signed       4 SYSRCNT        COUNT OF RDEV BLOCKS
    0130  304 Address      4 SYSRESDV       SYSTEM RESIDENCE RDEV BLOCK
    0134  308 Address      4 SYSRDEVL       ADDRESS FOLLOWING LAST RDEV BLOCK
    0138  312 Address      4 SYSDVFRX       LOCATOR FOR DVF REFERENCE TO
                                            RIOBKS
    013C  316 Address      4 SYSDVFLX       LOCATOR FOR DVF REFERENCE TO
                                            LIOBKS
    0140  320 Address      4 SYSCUIPT       ANCHOR FOR CUIBK QUEUE
    0144  324 Address      4 SYSRDCBK       HEAD RDC IN RDC LIST
    0148  328 Address      4 SYSSDMCM       Anchor for Storage Device
                                            Management Common Data Area
    014C  332 Address      4 SYSRIOIX       A( HCPRIOIX ) Updates to the tree
                                            structure anchored by SYSRIOIX
                                            are serialized by SYSRDXLK
    0150  336 Address      4 SYSRIOPC       A( list of operator consoles )
    0154  340 Address      4 SYSRIOSM       A( Measurement Control Blocks )
    0158  344 Address      4 SYSSCMAX       Maximum SCMBK index
    015C  348 Address      4 SYSCPDMP       A( map of CHPID descriptor blocks
                                            )
    0160  352 Address      4 SYSCMCP1       A(Channel Meas. Characteristics
                                            Pg1)
    0164  356 Address      4 SYSCMCP2       A(Channel Meas. Characteristics
                                            Pg2)
    0168  360 Address      4 *              Reserved for IBM use
    016C  364 Address      4 *              Reserved for IBM use
         MAJOR VMDBLOCK ADDRESSES
    0170  368 Address      4 SYSVMVR        Address of V=R VMDBK when the V=R
                                            guest is logged on
    0174  372 Address      4 SYSVRLOC       Address where V=R VMDBK is to be
                                            allocated, whether V=R guest is
                                            currently logged on or not
    0178  376 Address      4 SYSOPADR       System operator origin VMDBK
                                            address
    017C  380 Address      4 SYSDYNID       Pointer to VMDBK currently
                                            changing the configuration
    0180  384 Address      4 SYSVMVRO       Old value of SYSVMVR from before
                                            the bounce. address if the V=R
                                            guest was logged on in the
                                            previous IPL at the time of the
                                            bounce. (Must equal SYSVMVR and
                                            SYSVRLOC for V=R guest survival
                                            to succeed).
              00000000       SYSVRNON       0 SYSVMVRO value if no V=R guest
                                            was logged on at the time the
                                            bounce occurred.
              00FFFFFF       SYSVRSTG       X'FFFFFFFF' SYSVMVRO value if the
                                            V=R guest was logged on, but the
                                            VRFREE storage area (including
                                            the V=R VMDBK) cannot be trusted
                                            to have survived the bounce. In
                                            this case, V=R guest survival is
                                            suppressed, but V=R storage will
                                            still be preserved after the
                                            bounce.
              00FFFFFE       SYSVRNIL       X'FFFFFFFE' SYSVMVRO value if the
                                            V=R guest was logged on, but both
                                            the V=R storage itself and the
                                            VRFREE storage area (including
                                            the V=R VMDBK) did not survive
                                            the bounce. In this case, V=R
                                            storage will *NOT* be preserved
                                            after the bounce.
    0184  388 Address      4 SYSVROLD       Old value of SYSVRLOC from before
                                            a bounce, whether the V=R guest
                                            was logged on in the previous IPL
                                            or not.
    0188  392 Address      4 SYSOLDIX       Old value of SYSRIOIX from before
                                            a bounce.
    018C  396 Address      4 *              Reserved for IBM use
         Type 3 subchannel pointers and counts
    0190  400 Signed       4 SYSTP3CT       Count of Type 3 subchannel RDEVs
    0194  404 Address      4 SYSTP3PT       Anchor for system type 3 RDEV
                                            linked list
    0198  408 Address      4 *              Reserved for IBM use
    019C  412 Address      4 *              Reserved for IBM use
         PRE-MOUNTED VOLUME CONTROLS
    01A0  416 Address      4 SYSVOLS        CP OWNED VOLUME ENTRY
    01A4  420 Signed       4 SYSVOLCT       CP OWNED VOLUME COUNT
    01A8  424 Address      4 SYSUVOL        USER VOLUME LIST
    01AC  428 Address      4 SYSIVOL        GENERIC INCLUDE VOLUME LIST
    01B0  432 Address      4 SYSXVOL        EXCLUDE VOLUME LIST
    01B4  436 Address      4 SYSVOLLK       Address of 3 dword SYSVOLS lock
    01B8  440 Address      4 *              Reserved for future IBM use
    01BC  444 Address      4 *              Reserved for future IBM use
    01C0  448 Address      4 *              RESERVED FOR FUTURE IBM USE
    01C4  452 Address      4 *              RESERVED FOR FUTURE IBM USE
    01C8  456 Address      4 *              RESERVED FOR FUTURE IBM USE
    01CC  460 Address      4 *              RESERVED FOR FUTURE IBM USE
         SPOOL FILE ANCHORS AND POINTERS TO RELATED TABLES
    01D0  464 Address      4 SYSDELQ        SPOOL FILE DELETE QUEUE
    01D4  468 Address      4 SYSSCTT        SPOOL CLASSIFICATION TITLE TABLE
                                            PTR
    01D8  472 Address      4 SYSPRTT        PRINTER TABLE
    01DC  476 Address      4 SYSPUNT        PUNCH TABLE
    01E0  480 Address      4 SYSRDRT        READER TABLE
    01E4  484 Address      4 SYSFORMT       POINTER TO SYSTEM FORM TABLE
    01E8  488 Address      4 SYSFILID       POINTER TO FILEID TABLE
    01EC  492 Signed       4 SYSSFNDX       NUMBER OF SFNDX PAGES IN WRMST
                                            AREA
    01F0  496 Address      4 SYSINQ         SYSTEM INPUT QUEUE POINTER
    01F4  500 Address      4 SYSOUTQ        SYSTEM OUTPUT QUEUE POINTER
    01F8  504 Address      4 SYSDATAQ       SYSTEM DATA FILE QUEUE POINTER
    01FC  508 Address      4 SYSIENDQ       POINTER TO END OF SYSTEM INPUT
                                            QUEUE
    0200  512 Address      4 SYSOENDQ       POINTER TO END OF SYSTEM OUTPUT
                                            QUEUE
    0204  516 Address      4 SYSDENDQ       POINTER TO END OF SYSTEM DATA
                                            FILE Q
    0208  520 Address      4 SYSCAPQ        POINTER TO THE CAPBK QUEUE
    020C  524 Signed       4 SYSCSPID       Next converted spoolid to be
                                            assigned
    0210  528 Signed       4 SYSFLAST       FILID TABLE LAST ENTRY ASSIGNED
    0214  532 Address      4 SYSRESV1       RESERVED FOR FUTURE IBM USE
    0218  536 Address      4 SYSDLYPQ       Pointer to delayed purge queue
    021C  540 Address      4 SYSSECTB       Pointer to the HRLBK..See
                                            SYSSECTL
    0220  544 Address      4 SYSVSNDX       Virtual address of SFNDX pages
    0224  548 Address      4 SYSIDRQ        POINTER TO SYSTEM RESERVED SPID
                                            SPFBK QUEUE
    0228  552 Address      4 *              RESERVED FOR FUTURE IBM USE
    022C  556 Address      4 *              RESERVED FOR FUTURE IBM USE
         OTHER CONTROL BLOCK POINTERS
    0230  560 Address      4 SYSPRFIX       PREFIX AREA FOR IPL'D PROCESSOR
    0234  564 Address      4 SYSSCH         SCHEDULER CONTROL BLOCK
    0238  568 Address      4 SYSPCSBK       POINTER TO PROCESSOR CONTROLLER
                                            STATUS BLOCK
    023C  572 Address      4 SYSLOGM        LOGMSG CONTROL AREA
    0240  576 Address      4 SYSIDL         ADDRESS OF SYSTEM ID LIST (SIDBK)
    0244  580 Address      4 SYSSCPBK       SCPINFO DATA BLOCK ADDRESS
    0248  584 Address      4 SYSVRRVM       Anchor for VRFREE reserved frame
                                            list
    024C  588 Address      4 SYSLANG        Address of LNGBK for language
                                            that is built into to CP Nucleus
    0250  592 Address      4 SYSDSIBK       Dump space allocation data area
    0254  596 Address      4 SYSSSCBK       Address of the SYSTEM SERVICE
                                            CONTROL BLOCK (SSCBK)
    0258  600 Address      4 SYSRCSI        Pointer to Read Channel Subsystem
                                            Information Block
    025C  604 Address      4 SYSCSINF       Pointer to data obtained from
                                            channel information
    0260  608 Address      4 SYSCSAPT       CSABK pointer, if a Crypto
                                            Facility is (or was) installed in
                                            an online processor.
    0264  612 Address      4 SYSVRIFS       Address of IFSNT
    0268  616 Address      4 SYSBLOP        Address of ZLCBK
    026C  620 Address      4 SYSUIRP        Address of 1st UIRBK block
    0270  624 Address      4 SYSCSCHR       Pointer to Channel Subsystem
                                            Characteristics
    0274  628 Address      4 SYSQDGBL       Pointer to QDISK global control
                                            block
    0278  632 Address      4 SYSSLPBK       Pointer to the system's SLPBK
    027C  636 Address      4 SYSADDIN       Anchor for HCPADDIN entries
    0280  640 Address      4 SYSLFCFN       CFLF Configuration Name Table
    0284  644 Address      4 SYST1RDV       Pointer to Type 1 subchannel RDEV
    0288  648 Address      4 SYSCFTOK       Pointer to current config token
    028C  652 Address      4 SYSTRGTK       Pointer to target configuration
                                            token
    0290  656 Address      4 SYSDIAGS       Pointer to Diagnose Radix Control
    0294  660 Address      4 SYSEXITS       Pointer to Exit Radix Control
    0298  664 Address      4 SYSDLUBK       Address of Dynamic Load/Unload
                                            Block
    029C  668 Address      4 SYSPXIBK       Pointer to the shared creation
                                            PXIBK
         EXPANDED STORAGE FACILITY VARIABLES
    02A0  672 Signed       4 SYSXTSIZ       THE NUMBER OF PAGES IN THE
                                            EXTENDED STORAGE FACILITY.
    02A4  676 Signed       2 SYSXSTPG       Xstore paging rate
    02A6  678 Signed       2 SYSXSTMG       Xstore migration rate
    02A8  680 Signed       2 SYSXMCPR       Minidisk cache read rate
    02AA  682 Signed       2 SYSXMCPW       Minidisk cache write rate
    02AC  684 Signed       2 SYSXMCHR       Minidisk cache hit ratio
    02AE  686 Signed       2 *              RESERVED FOR FUTURE IBM USE
    02B0  688 Address      4 SYSXTUSR       VMDBK address owning ... .
                                            XSTORAGE facility
    02B4  692 Character    8 SYSXTPSV       Userid of previous owner facility
    02BC  700 Signed       4 *              RESERVED FOR FUTURE IBM USE
    02C0  704 Signed       4 *              RESERVED FOR FUTURE IBM USE
    02C4  708 Signed       4 *              RESERVED FOR FUTURE IBM USE
    02C8  712 Signed       4 *              RESERVED FOR FUTURE IBM USE
    02CC  716 Signed       4 *              RESERVED FOR FUTURE IBM USE
    02D0  720 Signed       4 *              RESERVED FOR FUTURE IBM USE
    02D4  724 Signed       4 *              RESERVED FOR FUTURE IBM USE
         SYSTEM COUNTERS (FULL-WORD AND HALF-WORD)
    02D8  728 Signed       4 SYSTRAC        Trace table pages for master
                                            processor
    02DC  732 Signed       2 SYSTRCPC       Percent for calculating alternate
                                            CPU
    02DE  734 Signed       2 SYSLPRCT       Count of partitions on the
                                            machine
    02E0  736 Signed       4 SYSUSRS        CURRENT LOGGED ON USERS COUNT
    02E4  740 Signed       4 SYSDIALD       CURRENT DIALED USERS COUNT
    02E8  744 Signed       4 SYSMCHRC (0)   SYSTEM RECOVERY MACHINE CHK
                                            RECORDING
    02E8  744 Signed       2 SYSMCHCT       COUNT OF SYSTEM RECOVERY MACHINE
                                            CHKS
    02EA  746 Signed       2 SYSMCHOF       COUNT AT WHICH TO TURN MACHINE
                                            CHECK RECORDING OFF, 0 IF NO
                                            RECORDING
    02EC  748 Signed       2 SYSCPUS        ACTIVE PROCESSORS COUNT
    02EE  750 Signed       2 SYSPGRAT       SMOOTHED PAGING REQUEST RATE. (
                                            IN REQUEST PER SECOND, ACTUAL I/O
                                            MAY NOT HAVE TAKEN PLACE YET )
    02F0  752 Signed       4 SYSLOGON       COUNT OF LOGONS
    02F4  756 Signed       4 SYSPGSLT       COUNT OF PAGING SLOTS AVAILABLE
    02F8  760 Signed       4 SYSPGCYL       COUNT OF PAGING CYLINDERS IN USE
    02FC  764 Signed       4 SYSSYNCK       COUNT OF TOD CLOCK
                                            SYNCHRONIZATION CHECKS
    0300  768 Signed       4 SYSRSVPG       COUNT OF RESERVED PAGES
    0304  772 Signed       4 SYSTANSS       NUMBER OF CURRENTLY ACTIVE NSS
    0308  776 Signed       4 SYSTADCS       Number of active segments (DCSSs
                                            and SSPs).
    030C  780 Signed       4 SYSSFCRT       # SPOOL FILES CREATED SINCE LAST
                                            IPL
    0310  784 Signed       4 SYSSFPUR       # SPOOL FILES PURGED SINCE LAST
                                            IPL
    0314  788 Signed       4 SYS98XA        CARDINAL COUNT OF PAGES LOCKED BY
                                            DIAG X'98' ISSUED IN 31 BIT MODE.
    0318  792 Signed       4 *              Reserved for IBM use
    031C  796 Signed       2 SYSPGSTL       Page steals count
    031E  798 Signed       2 SYSPGLOD       Paging load
    0320  800 Signed       4 SYSOIECT       Outstanding Initailization Entry
                                            pts
    0324  804 Signed       4 SYSTHRCT       Number of devices in throttle set
    0328  808 Signed       4 SYSSCMEX       Extra pgs to get for SCMBKs
    032C  812 Signed       4 SYSSCMAV       Count of unused SCMBKs
    0330  816 Signed       2 SYSTFFFE       Count of times into HCPSTP since
                                            the last time trace code x'FFFE'
                                            was cut
    0332  818 Signed       2 *              RESERVED FOR FUTURE IBM USE
    0334  820 Signed       4 *              RESERVED FOR FUTURE IBM USE
    0338  824 Signed       4 *              RESERVED FOR FUTURE IBM USE
    033C  828 Signed       4 *              RESERVED FOR FUTURE IBM USE
    0340  832 Signed       4 *              RESERVED FOR FUTURE IBM USE
    0344  836 Signed       4 *              RESERVED FOR FUTURE IBM USE
    0348  840 Signed       4 *              RESERVED FOR FUTURE IBM USE
    034C  844 Signed       4 *              RESERVED FOR FUTURE IBM USE
    0350  848 Signed       4 *              RESERVED FOR FUTURE IBM USE
    0354  852 Signed       4 *              RESERVED FOR FUTURE IBM USE
    0358  856 Signed       4 *              RESERVED FOR FUTURE IBM USE
    035C  860 Signed       4 *              RESERVED FOR FUTURE IBM USE
    0360  864 Signed       4 *              RESERVED FOR FUTURE IBM USE
    0364  868 Signed       4 *              RESERVED FOR FUTURE IBM USE
         STORAGE SIZE CONSTANTS
    0368  872 Signed       4 SYSTORS        Real machine specified storage
                                            size. In ESAME this is the size
                                            <= the 2G line. See SYSGTORS
                                            for above 2G.
    036C  876 Signed       4 SYSVRSZ        SIZE OF V=R AREA IN BYTES
    0370  880 Signed       4 SYSVRFRE       SIZE OF V=R RESERVED FREE STORAGE
                                            (INCLUDING THE VMDBK) IN BYTES
    0374  884 Signed       4 *              Reserved for IBM use
    0378  888 Signed       2 *              Reserved for IBM use
    037A  890 Signed       2 *              Reserved for IBM use
    037C  892 Signed       4 SYSVRREQ       Requested V=R size in bytes. This
                                            varies from SYSVRSZ when this
                                            size is not a multiple of the
                                            number of megs indicated in
                                            SYSVRFSG, or when the requested
                                            V=R size can't fit under the
                                            requested beginning of the
                                            resident nucleus.
    0380  896 Signed       4 SYSVRSZO       Old value of SYSVRSZ from before
                                            a bounce
    0384  900 Signed       4 SYSVRFRO       Old value of SYSVRFRE from before
                                            a bounce
    0388  904 Address      4 SYSLODPA       Address of the beginning of the
                                            low "gap" DPA area (DPA below the
                                            resident nucleus.) This is
                                            normally the first whole page
                                            after the end of the V=R area.
                                            Initialized to page 1, x'1000',
                                            because we never use absolute
                                            page 0, and to avoid prefix page
                                            conflicts.
    038C  908 Signed       4 SYSFTLEN       Length of frame table in bytes
    0390  912 Signed       8 SYSGTORS       Real machine specified storage
                                            size minus 1 (includes storage
                                            above 2G).
    0398  920 Signed       8 SYSMACHL       Maximum host address allowable
                                            for the SIE instruction. Limits
                                            the size of the Virtual Machine's
                                            base address space. See PCCMAXVM.
         SYSGEN MAXIMUMS AND CURRENT MAXIMUMS
    03A0  928 Signed       4 SYSMAXU        MAXIMUM NUMBER OF USERS ALLOWED
                                            ON
    03A4  932 Signed       4 SYSHIMAX       HIGH-WATER-MARK OF LOGGED-ON
                                            USERS
    03A8  936 Signed       4 SYSMSPID       MAXIMUM SYSTEM SPOOL FILE ID
    03AC  940 Signed       2 SYSAFLMT       Limit of incorrect
                                            AUTOLOG/XAUTOLOG passwords a user
                                            is allowed before being
                                            prohibited to use these commands
    03AE  942 Signed       2 SYSMAXLD       Maximum number of logical devices
    03B0  944 Signed       4 SYSLDCNT       Count of logical devices
    03B4  948 Signed       4 *              RESERVED FOR FUTURE IBM USE
    03B8  952 Signed       4 *              RESERVED FOR FUTURE IBM USE
    03BC  956 Signed       4 *              RESERVED FOR FUTURE IBM USE
    03C0  960 Signed       4 *              RESERVED FOR FUTURE IBM USE
    03C4  964 Signed       4 *              RESERVED FOR FUTURE IBM USE
    03C8  968 Signed       4 *              RESERVED FOR FUTURE IBM USE
    03CC  972 Signed       4 *              RESERVED FOR FUTURE IBM USE
    03D0  976 Signed       4 *              RESERVED FOR FUTURE IBM USE
    03D4  980 Signed       4 *              RESERVED FOR FUTURE IBM USE
    03D8  984 Signed       4 *              RESERVED FOR FUTURE IBM USE
    03DC  988 Signed       4 *              RESERVED FOR FUTURE IBM USE
         DIRECTORY CONTROL INFORMATION
    03E0  992 Signed       4 SYSDRCT        SYSTEM DIRECTORY DASD START CCPV
                                            for CKD DASD addresses PPPV for
                                            FBA DASD addresses
    03E4  996 Signed       4 SYSDHDR        SYSTEM DIRECTORY HEADER TABLE
    03E8 1000 Signed       4 SYSDCTL        SYSTEM DIRECTORY CURRENT CONTROL
                                            AREA
    03EC 1004 Address      4 SYSDIRVL       ADDRESS OF CPVOL CONTAINING
                                            SYSTEM DIRECTORY
    03F0 1008 Signed       4 SYSDVIRT       FIRST VIRTUAL ADDRESS OF
                                            DIRECTORY
    03F4 1012 Signed       4 SYSDPGS        NUMBER OF DIRECTORY PAGES IN
                                            VIRTUAL
    03F8 1016 Signed       2 SYSDPCYL       NUMBER OF PAGES IN A DIRECTORY
                                            CYLNDR
    03FA 1018 Signed       2 SYSD1STP       FIRST DIRECTORY PAGE NUMBER
    03FC 1020 Signed       4 *              RESERVED FOR FUTURE IBM USE
    0400 1024 Signed       4 *              RESERVED FOR FUTURE IBM USE
    0404 1028 Signed       4 *              RESERVED FOR FUTURE IBM USE
    0408 1032 Signed       4 *              RESERVED FOR FUTURE IBM USE
    040C 1036 Signed       4 *              RESERVED FOR FUTURE IBM USE
         SYSTEM LOCKS
    0410 1040 Dbl-Word     8 SYSDATLK (3)   LOCK FOR TOD AND DATE
    0428 1064 Dbl-Word     8 SYSDRLOK (3)   LOCK FOR DIRECTORY
    0440 1088 Dbl-Word     8 SYSTPELK (3)   LOCK FOR TPEBK
    0458 1112 Dbl-Word     8 SYSDBDLK (3)   DIRECTORY BUILD LOCK
    0470 1136 Dbl-Word     8 SYSLCKC4 (3)   SERIALIZE DIAGNOSE X'C4'
    0488 1160 Dbl-Word     8 SYSLNGLK (3)   LANGUAGE BLOCK CHAIN LOCK
    04A0 1184 Dbl-Word     8 SYSCR6LK (3)   LOCK FOR PASS THROUGH CR6
    04B8 1208 Dbl-Word     8 SYSHVSLK (3)   ALLOCATE HIGH SYSTEM VIRTUAL
                                            STORAGE
    04D0 1232 Dbl-Word     8 SYSSECLK (3)   Secondary userids table lock
    04E8 1256 Dbl-Word     8 SYSCAPLK (3)   LOCK FOR THE CAPBK CHAIN
    0500 1280 Dbl-Word     8 SYSPWDLK (3)   Lock for the PWDBK chain
    0518 1304 Dbl-Word     8 SYSUSXLK (3)   User Security Extension lock
    0530 1328 Dbl-Word     8 SYSRDXLK (3)   Lock for radix tree
    0548 1352 Dbl-Word     8 SYSHRTLK (3)   Human readable table lock
    0560 1376 Dbl-Word     8 SYSRFRLK (3)   Refresh Logoinfo lock
    0578 1400 Dbl-Word     8 SYSPIDLK (3)   POSIX PID manager lock
    0590 1424 Dbl-Word     8 SYSXRQLK (3)   POSIX exec() request chain
                                            (REQBK) lock
    05A8 1448 Dbl-Word     8 SYSTHRLK (3)   Lock for chain of THRBKs
    05C0 1472 Dbl-Word     8 SYSCUILK (3)   Lock for SYSCUIPT chain of CUIBKs
    05D8 1496 Dbl-Word     8 SYSCFLCK (3)   Coupling Facility Configuration
                                            Lock
    05F0 1520 Dbl-Word     8 SYSSYNLK (3)   System synchronization lock
    0608 1544 Dbl-Word     8 SYSALILK (3)   Alias chain lock
    0620 1568 Dbl-Word     8 SYSPEDLK (3)   Product Enablement Data Lock
    0638 1592 Dbl-Word     8 SYSCFNLK (3)   CFLF Configuration Name Table
                                            lock
    0650 1616 Signed       4 SYSHUDSP (0)   HOLD USERS DISPATCH WORD USERS
                                            CAN ONLY BE DISPATCHED WHEN THIS
                                            WORD IS ZERO
    0650 1616 Bitstring    1 SYSSABND       SOFT ABEND USER DISPATCH HOLD
                                            BYTE THIS BYTE IS LOCKED BY SOFT
                                            ABEND LOCK
              .... 1...      SYSSABNF       X'08' SOFT ABEND IN PROGRESS
              .... .1..      SYSSNPAB       X'04' SNAPDUMP IN PROGRESS
    0651 1617 Bitstring    1 SYSUHOLD       USER DISPATCH HOLD BYTE THIS BYTE
                                            IS LOCKED BY RUNNING ON THE
                                            SYSTEM VMDBK
              1... ....      SYSSHTDN       X'80' SYSTEM SHUTDOWN IN PROGRESS
              .... 1...      SYSWRPUP       X'08' System is terminating,
                                            HCPWRPUP has has been called for
                                            any of a number of situations.
    0652 1618 Bitstring    1 SYSDMPTY       System termination dump
              00000080       SYSTERMB       X'80' System termination dump in
                                            progress
              00000040       SYSSNAPB       X'40' System SNAPDUMP dump in
                                            progress
    0653 1619 Bitstring    1 *              Reserved for future IBM use
    0654 1620 Address      4 SYSVRYBK       Address of HCPVRYBK
    0658 1624 Signed       4 *              Reserved for future IBM use
    065C 1628 Signed       4 *              RESERVED FOR FUTURE IBM USE
    0660 1632 Signed       4 *              RESERVED FOR FUTURE IBM USE
    0664 1636 Signed       4 *              RESERVED FOR FUTURE IBM USE
    0668 1640 Signed       4 *              RESERVED FOR FUTURE IBM USE
    066C 1644 Signed       4 *              RESERVED FOR FUTURE IBM USE
    0670 1648 Signed       4 *              RESERVED FOR FUTURE IBM USE
    0674 1652 Signed       4 *              RESERVED FOR FUTURE IBM USE
    0678 1656 Signed       4 *              RESERVED FOR FUTURE IBM USE
    067C 1660 Signed       4 *              RESERVED FOR FUTURE IBM USE
         MISCELLANEOUS
    0680 1664 Signed       4 SYSZONE        TOD CLOCK TIME ZONE DIFFERENTIAL
    0684 1668 Signed       4 SYSNSPID       NEXT SPID TO BE ASSIGNED
    0688 1672 Signed       4 SYSLCPUA       OR'D MASKS FOR ALL ACTIVE CPUS
    068C 1676 Signed       4 SYSMALFM       SYSTEM MALFUNCTION ALERT MASK
    0690 1680 Signed       4 SYSMBCT        NUMBER OF BCTS IN 50MILISEC
    0694 1684 Signed       4 SYSCORCT       ERROR RECORDING CORRELATION COUNT
    0698 1688 Address      1 SYSISC         HOST ISC MASK
    0699 1689 Bitstring    1 SYSVPCIF       PROCESSOR CONTROLLER INTERFACE:
                                            IDENTIFICATION USED TO ACCEPT
                                            VIRTUAL SYSTEM DIAGNOSE X'80' OR
                                            SERVICE CALL INSTRUCTIONS FOR
                                            SIMULATION
              1... ....      SYSVSC3        X'80' SERVICE CALL 370 MODE
              .1.. ....      SYSVSCX        X'40' SERVICE CALL ESA MODE
              ..1. ....      SYSVDG3        X'20' DIAGNOSE X'80' 370 MODE
              ...1 ....      SYSVDGX        X'10' DIAGNOSE X'80' ESA MODE
    069A 1690 Bitstring    1 SYSRPCIF       REAL PROCESSOR CONTROLLER
                                            INTERFACES used by real SCLP
                                            request processing
              1... ....      SYSRSCIF       X'80' SERVICE CALL TYPE INTERFACE
              .1.. ....      SYSRDGIF       X'40' DIAGNOSE X'80' TYPE
                                            INTERFACE
    069B 1691 Bitstring    1 SYSRCPFG       General RCPU flags
              1... ....      SYSAPISH       X'80' This bit is set on just
                                            before RCPU initiates the VARY
                                            OFFLINE PROCESSOR function for
                                            each non-Master processor for the
                                            SHUTDOWN sequence. Can be used to
                                            distinguish SHUTDOWN functions
                                            vs. other VARY functions.
              .1.. ....      SYSD2F0I       X'40' Set if Diagnose X'2F0' is
                                            installed
              ..1. ....      SYSRCFIN       X'20' Set if a Crypto Facility is
                                            installed in the configuration as
                                            indicated at system
                                            initialization.
              ...1 ....      SYSICRFC       X'10' Set if the CMOS
                                            Cryptographic Coprocessor is
                                            installed in the configuration.
              .... 1...      SYSAPCF        X'08' Set if an AP PCI
                                            Cryptographic Coprocessor is
                                            installed in the configuration.
    069C 1692 Bitstring    1 SYSPFMLY       Processor family type
         ** Equates set in SYSPFMLY
              .... 1...      SYSBFMLY       X'08' 9000 processors
              .... .1..      SYSGFMLY       X'04' 3090 processors
              .... ..1.      SYSLFMLY       X'02' 4381 processors
              .... ...1      SYSAFMLY       X'01' 308X and 908X processors
              .... ....      SYSUFMLY       X'00' Unknown processor
    069D 1693 Bitstring    1 SYSDPTRQ       UNRESPONSIVE PROCESSOR DETECTION
                                            FLAGS
              1... ....      SYSDPDET       X'80' DETECTION ACTIVE, TRQBK
                                            REMAINS ACTIVE
              .... 1...      SYSTRQST       X'08' TRQBK CURRENTLY ACTIVE
    069E 1694 Bitstring    1 SYSINITL       SYSTEM INITIALIZATION FLAG
              1... ....      SYSCINIT       X'80' OPERATORS CONSOLE NOT YET
                                            INITIALIZED
              .1.. ....      SYSTINIT       X'40' TOD CLOCK NOT YET
                                            INITIALIZED
              ..1. ....      SYSREIPL       X'20' SYSTEM IS REIPLING
              ...1 ....      SYSODISC       X'10' OPERATOR SHOULD BE
                                            DISCONNECTED UPON RESTARTING THE
                                            SYSTEM
              .... 1...      SYSNULOD       X'08' We needed a new copy of
                                            HCPLOD when we bounced (or
                                            SHUTDOWN REIPL same nucleus)
              .... .1..      SYSISUSC       X'04' If in HCPOPRWT & console
                                            not defined, stack GSDBK on
                                            HCPISUSC so that msg can be
                                            issued once console defined
              .... ..1.      SYSDINIT       X'02' Device initialization is
                                            not complete
              .... ...1      SYSSINIT       X'01' System is not completely
                                            initialized
    069F 1695 Bitstring    1 SYSMODDP       BYTE CONTAINING MODEL DEPENDENT
                                            FLAGS
              1... ....      SYSSI370       X'80' Indicates that interpretive
                                            execution of System/370 guests is
                                            installed.
              .1.. ....      SYSIOP37       X'40' INDICATES I/O PASS THROUGH
                                            FOR 370 IS INSTALLED
              ..1. ....      SYSIOPXA       X'20' INDICATES I/O PASS THROUGH
                                            FOR ESA IS INSTALLED
              ...1 ....      SYSIOIL2       X'10' INDICATES V=F USERS ARE
                                            SUPPORTED WITH I/O PASSTHROUGH
              .... 1...      SYSMIF         X'08' Indicates Multiple Image
                                            facility is Installed
              .... .1..      SYSMIFMD       X'04' Indicates machine is
                                            running in MIF mode
    06A0 1696 Character    8 SYSABNCD       CODE OF LAST TERMINATION
         THE FOLLOWING FIELDS ARE DEFINED PRIVILEGE CLASSES FOR SYSTEM FUNCTIONS
    06A8 1704 Signed       4 SYSOPR         CLASS(ES) FOR SYSTEM OPERATOR
    06AC 1708 Signed       4 SYSCPRD        CLASS(ES) AUTHORIZED FOR IOCP
                                            READ
    06B0 1712 Signed       4 SYSCPWT        CLASS(ES) AUTHORIZED FOR IOCP
                                            WRITE
    06B4 1716 Signed       4 SYSSERV        CLASS(ES) AUTHORIZED FOR
                                            INTENSIVE ERROR RECORDING
    06B8 1720 Signed       4 SYSDFLT        DEFAULT CLASS(ES) FOR A USER
    06BC 1724 Character    5 SYSLNGVR       V=R USER'S LANGUAGE
    06C1 1729 Bitstring    1 SYSVLPP        Virtual printer lines-per-page
    06C2 1730 Signed       2 SYSSERLG       Number of minutes that an
                                            autologged server may remain
                                            unused before it is logged off.
                                            The run-time value of the
                                            system's POSIX {NGROUPS_MAX}
                                            value is contained in SYSNGMAX.
                                            This value is initialized to CP's
                                            native value, but an ESM can
                                            provide a larger number. A
                                            POSIX-capable ESM is required to
                                            notify CP of its presence and its
                                            {NGROUPS_MAX} value. The SYSPXESM
                                            byte is manipulated with TEST AND
                                            SET, and only the first task that
                                            sets it to X'FF' will modify
                                            SYSNGMAX. Thus the ESM may supply
                                            its {NGROUPS_MAX} value only
                                            once.
    06C4 1732 Address      4 SYSNGMAX       Actual {NGROUPS_MAX} value. Could
                                            be CP's default value or an
                                            ESM-supplied value.
    06C8 1736 Address      1 SYSPXESM       Indicates whether a POSIX-capable
                                            ESM is installed and has supplied
                                            its {NGROUPS_MAX} value to CP in
                                            SYSNGMAX
              00000000       SYSPXNO        X'00' No POSIX-capable ESM
                                            installed
              000000FF       SYSPXYES       X'FF' POSIX-capable ESM is
                                            installed
    06C9 1737 Bitstring    1 *              Reserved for future IBM use
    06CA 1738 Bitstring    1 SYSIPLF3       System IPL flag 3
              1... ....      SYSFC32        X'80' ARCH390 IPL Parm found at
                                            IPL
              .1.. ....      SYSFC32N       X'40' ARCH390 IPL Parm not found
                                            at IPL
              ..1. ....      SYS1IMG        X'20' Using Single-Image CP
                                            module
              ...1 ....      SYS2IMG        X'10' Using Dual-Image CP module
    06CB 1739 Bitstring    1 SYSMISC        Miscellaneous system-wide
                                            conditions
              1... ....      SYSDTINV       X'80' SYSDATE value is not valid
              .1.. ....      SYSSDSCH       X'40' SHUTDOWN scheduled
    06CC 1740 Bitstring    1 SYSUDEF1       USER_DEFAULTS system
                                            configuration file statement
                                            settings SYSPQDBA and SYSPESIA
                                            must remain in the same bit
                                            positions as their counterparts
                                            in DVMDPXO1 and VMDPXFL1.
              1... ....      SYSPQDBA       X'80' Users are allowed to query
                                            others' POSIX database
                                            information
              .1.. ....      SYSPESIA       X'40' exec() is allowed to change
                                            a user's POSIX IDs, as
                                            appropriate
    06CD 1741 Bitstring    1 SYSIPLF2       Another CP IPL information flag
                                            The next 3 bits are set during a
                                            system bounce. They must match
                                            SYSRSTPR, SYSRPLPR and SYSPWRPR
                                            in SYSFEAT.
              .... 1...      SYSPPROF       X'08' Prompt after shutdown power
                                            off
              .... .1..      SYSPRIPL       X'04' Prompt after shutdown reipl
              .... ..1.      SYSPRSRT       X'02' Prompt after abend restart
              .... ...1      SYSOVRST       X'01' OVR override statement was
                                            used. Don't process *UCR during
                                            IPL.
    06CE 1742 Bitstring    1 SYSDYNFG       Dynamic I/O flag
              1... ....      SYSCFINV       X'80' Configuration is invalid
              .1.. ....      SYSDYNCF       X'40' Dynamic change started
                                            (non-HCD)
              ..1. ....      SYSCNFMD       X'20' System in configuration
                                            mode
              ...1 ....      SYS1DYNC       X'10' Only one dynamic change
                                            requested
              .... 1...      SYSNODYN       X'08' No dynamic changes allowed
              .... .1..      SYSDODYN       X'04' Dynamic changes are allowed
              .... ..1.      SYSNOVRY       X'02' Dynamically added dev not
                                            varied on
              .... ...1      SYSNOVLD       X'01' Hardware config not valid
                                            at IPL time
    06CF 1743 Bitstring    1 SYSIOIST       Byte indicating supported I/O
                                            instr.
              1... ....      SYSICHIO       X'80' Channel Information
                                            available bit
              .1.. ....      SYSECPMF       X'40' Channel Path Measurement
                                            Facility with extended channel
                                            path measurements is installed
              ..1. ....      SYSORBSM       X'20' ORB streaming-mode facility
                                            (for FCV channels) is installed.
              ...1 ....      SYSFCTCF       X'10' FICON CTC facility is
                                            installed
              .... 1...      SYSSTIOP       X'08' I/O Processor measurement
                                            data is available to the monitor
                                            subsystem
    06D0 1744 Bitstring    1 SYSIOPST       IOASSIST FOR ALL STATUS BYTE
              1... ....      SYSIOPAC       X'80' IOASSIST GLOBALLY ACTIVE
    06D1 1745 Bitstring    1 SYSRESFL       HCPSYS GEN OPTIONS FLAG
              1... ....      SYSCLRON       X'80' TDISK space clearing
              .1.. ....      SYSNDISC       X'40' DISCONNECT OPERATOR
                                            OVERRIDE
              ..1. ....      SYSNLOGM       X'20' New style LOGMSG in use
              ...1 ....      SYSLGACC       X'10' Asking to see accountid's
                                            LOGMSG
              .... 1...      SYSLGACI       X'08' Asking to see ACIgroup's
                                            LOGMSG, also
              .... .1..      SYSLGUSR       X'04' Asking to see userid's
                                            LOGMSG, also
              .... ..1.      SYSSENSY       X'02' Asking us to sense devices
              .... ...1      SYSSENSN       X'01' Asking us not to sense
                                            devices
    06D2 1746 Bitstring    1 SYSIOFI        I/O FACILITIES INSTALLED FLAG
              1... ....      SYSCONSN       X'80' CONCURRENT SENSE FACILITY
                                            INSTALLED
              .1.. ....      SYSHDVA        X'40' HALT DEVICE (HDV) ASSIST
                                            INSTALLED
              ..1. ....      SYSCIORF       X'20' CANCEL I/O REQUEST FACILITY
                                            INSTALLED
              ...1 ....      SYSIOFI3       X'10' Facility described in
                                            HCPIOX comments
              .... 1...      SYSDVACT       X'08'
                                            Subchannel-Device-Active-Only
                                            Measurement protocol is
                                            installed.
              .... .1..      SYSCPMF        X'04' Channel-Path Measurement
                                            installed
              .... ..1.      SYSDYNIO       X'02' Dynamic I/O configuration
                                            installed
              .... ...1      SYSFCCF        X'01' FC-channel facilities are
                                            installed
    06D3 1747 Bitstring    1 SYSIPLFL       CP IPL information flag
              1... ....      SYSPARMD       X'80' We have a parm disk at IPL
              .1.. ....      SYSTLERR       X'40' Error encountered in config
                                            file . in non-tolerance section
              ..1. ....      SYSQUISC       X'20' System being quiesced at
                                            IPL time . means don't bring up
                                            userids
              ...1 ....      SYSOVCON       X'10' Override console address
                                            specified . (console address in
                                            SYSCONSL)
              .... .1..      SYSPROMP       X'04' Prompts requested (override
                                            SYSAUTYP)
              .... ..1.      SYSPDFBA       X'02' Parm disk was on FBA volume
              .... ...1      SYSNEXIT       X'01' NOEXITS IPL parameter
    06D4 1748 Signed       4 SYSDRFC6       GLOBAL PASS THROUGH CR6 MASK SEE
                                            PFXCR6B0 FOR BIT DEFINITIONS
    06D8 1752 Signed       4 SYSSECTL       Length (in bytes) of human
                                            readable label to SECLABEL
                                            correlation table.. See
                                            SYSSECTB..
    06DC 1756 Signed       2 SYSCONSL       Override console to use
    06DE 1758 Signed       2 SYSPDNUM       Parm disk number being used
    06E0 1760 Signed       4 SYSPDSTA       Start cylinder for parm disk
    06E4 1764 Signed       4 SYSPDEND       End cylinder for parm disk
    06E8 1768 Character    6 SYSPDVOL       Volser on which parm disk resides
    06EE 1774 Signed       2 SYSPDADR       Device addr on which parmdisk
                                            resides
    06F0 1776 Bitstring    1 SYSAUTFL       Autologging option bits
              1... ....      SYSAUAC1       X'80' Don't autolog 1st
                                            accounting ID
              .1.. ....      SYSAUAC2       X'40' Don't autolog 2nd
                                            accounting ID
              ..1. ....      SYSAUER1       X'20' Don't autolog 1st EREP ID
              ...1 ....      SYSAUER2       X'10' Don't autolog 2nd EREP ID
              .... 1...      SYSAUSM1       X'08' Don't autolog 1st symptom
                                            ID
              .... .1..      SYSAUSM2       X'04' Don't autolog 2nd symptom
                                            ID
              .... ..1.      SYSAUSTR       X'02' Don't autolog the start up
                                            ID
    06F1 1777 Bitstring    1 SYSASSRT       Flags associated with Assert
                                            facility (the SET CPCHECKING
                                            command).
              1... ....      SYSASRON       X'80' CP checking is on (zero
                                            means off)
              .1.. ....      SYSASRVM       X'40' CP checking is set to
                                            VMSTOP, which means that we're
                                            running in a virtual machine and
                                            that instead of an abend, the
                                            virtual machine should be stopped
                                            with a message. If this bit is
                                            set, so is SYSASRON.
              .... ...1      SYSASRLK       X'01' A "lock" bit. Must be set
                                            via interlocked update to
                                            serialize references to SYSASSRT.
                                            Other bits can be manipulated via
                                            normal instructions, but only
                                            when this bit is set. Control
                                            cannot be lost with this bit set.
    06F2 1778 Bitstring    1 SYSCONSF       Operator console flag
              1... ....      SYSCONIC       X'80' The operator's console is
                                            the integrated console
              .1.. ....      SYSCONOM       X'40' Suppress operator IPL
                                            messages
    06F3 1779 Bitstring    1 SYSDIST        Define distribution properties
              1... ....      SYSIUYES       X'80' Distributed IUCV supported
              .1.. ....      SYSIUTOL       X'40' Distributed IUCV tolerated
    06F4 1780 Bitstring    1 SYSFEAT        Flag for enabled features
              1... ....      SYSETDEV       X'80' Enable Set Devices command
              .1.. ....      SYSETDYN       X'40' Enable Set Dynamic i/o
                                            command
              ..1. ....      SYSTHRAL       X'20' Enable throttling on all
                                            devices The next 3 bits are set
                                            by the FEATURES statement or the
                                            Set PROMPT command. They must
                                            match SYSPRSRT, SYSPRIPL and
                                            SYSPPROF in SYSIPLF2.
              .... 1...      SYSPWRPR       X'08' Enable prompt after power
                                            off
              .... .1..      SYSRPLPR       X'04' Enable prompt after reipl
              .... ..1.      SYSRSTPR       X'02' Enable prompt after restart
              .... ...1      SYSPWROF       X'01' Disable prompt after power
                                            off
    06F5 1781 Bitstring    2 SYSIUCV        Maximum dist IUCV send size
                                            (Megs)
    06F7 1783 Bitstring    1 SYSDATFL       System-wide date format default
                                            Bits for SYSDATFL are defined in
                                            HCPEQUAT
         QUEUE ANCHORS
    06F8 1784 Signed       4 SYSLOKQ        SYSTEM LOCK REQUEST QUEUE
    06FC 1788 Signed       4 SYSHOLQ        SYSTEM HOLD QUEUE QUEUE
    0700 1792 Address      4 SYSSECQ        Anchor for secondary userids
                                            table queue
    0704 1796 Address      4 SYSPWD         Anchor of PWDBK chain
    0708 1800 Address      4 SYSVRDV        Anchor of V=R guest devices
    070C 1804 Address      4 SYSTHRPT       Anchor of THRBKS
    0710 1808 Address      4 SYSPPROC       Anchor of block to be processed
                                            late in IPL. Built by config file
                                            post processors.
    0714 1812 Address      4 SYSLPARS       Anchor for list of partition
                                            names
    0718 1816 Address      4 SYSPIDAL       Anchor for PID First Table
                                            available chain
    071C 1820 Address      4 SYSALIAS       Alias block chain anchor
    0720 1824 Signed       4 *              RESERVED FOR FUTURE IBM USE
    0724 1828 Signed       4 *              RESERVED FOR FUTURE IBM USE
    0728 1832 Signed       4 *              RESERVED FOR FUTURE IBM USE
    072C 1836 Signed       4 *              RESERVED FOR FUTURE IBM USE
         SYSTEM RESIDENCE VOLUME DEFINITION
    0730 1840 Signed       2 SYSDVNO        SYSTEM RESIDENCE DEVICE NUMBER
    0732 1842 Bitstring    1 SYSNCFLG       System residence volume flag
              1... ....      SYSNCFBA       X'80' SYSRES is an FBA device
    0733 1843 Bitstring    1 SYSDTYP        SYSTEM RESIDENCE DEVICE TYPE
    0734 1844 Signed       4 SYSNUCS        Starting cylinder(CKD/ECKD) or
                                            page(FBA) of the nucleus
    0738 1848 Signed       4 SYSNUCN        Number of cylinders/pages for the
                                            nucleus
    073C 1852 Signed       2 SYSPCYL        PAGES PER CYLINDER ON SYSRES
    073E 1854 Signed       2 SYSPTRK        PAGES PER TRACK ON SYSRES
    0740 1856 Signed       4 *              Reserved for future IBM use
    0744 1860 Signed       4 SYSNUCSC       SUBCHANNEL NUMBER OF SYSRES
    0748 1864 Character   16 SYSCONID (0)   Field that covers file name &
                                            type
    0748 1864 Character    8 SYSCONFN       Filename for system configuration
                                            file
    0750 1872 Character    8 SYSCONFT       Filetype for system configuration
                                            file
         CHECKPOINT VOLUME DEFINITION
    0758 1880 Bitstring    1 *              RESERVED FOR FUTURE IBM USE
    0759 1881 Bitstring    1 SYSCKFLG       Checkpoint volume flag
              1... ....      SYSCKFBA       X'80' Checkpoint volume is an FBA
                                            device
    075A 1882 Bitstring    1 SYSCKVCD       CHECKPOINT VOLUME CODE
    075B 1883 Bitstring    1 SYSCKTYP       CHECKPOINT DEVICE TYPE
    075C 1884 Signed       4 SYSCKPS        Starting cylinder(CKD/ECKD) or
                                            page(FBA) of the checkpoint area
    0760 1888 Signed       4 SYSCKPN        Number of cylinders/pages for the
                                            checkpoint area
    0764 1892 Signed       2 SYSCKPCY       PAGES PER CYLINDER ON CHECKPOINT
    0766 1894 Signed       2 SYSCKPTK       PAGES PER TRACK ON CHECKPOINT
    0768 1896 Signed       4 *              Reserved for future IBM use
    076C 1900 Signed       4 SYSCKSCH       SUBCHANNEL NUMBER OF CHECKPOINT
                                            DEVICE
    0770 1904 Signed       4 *              RESERVED FOR FUTURE IBM USE
    0774 1908 Signed       4 *              RESERVED FOR FUTURE IBM USE
    0778 1912 Signed       4 *              RESERVED FOR FUTURE IBM USE
    077C 1916 Signed       4 *              RESERVED FOR FUTURE IBM USE
         WARMSTART VOLUME DEFINITION
    0780 1920 Bitstring    1 *              RESERVED FOR FUTURE IBM USE
    0781 1921 Bitstring    1 SYSWMFLG       Warmstart volume flag
              1... ....      SYSWMFBA       X'80' Warmstart volume is an FBA
                                            device
    0782 1922 Bitstring    1 SYSWMVCD       WARMSTART VOLUME CODE
    0783 1923 Bitstring    1 SYSWMTYP       WARMSTART DEVICE TYPE
    0784 1924 Signed       4 SYSWRMS        Starting cylinder(CKD/ECKD) or
                                            page(FBA) of the warmstart area
    0788 1928 Signed       4 SYSWRMN        Number of cylinders/pages for the
                                            warmstart area
    078C 1932 Signed       2 SYSWMPCY       PAGES PER CYLINDER ON WARMSTART
    078E 1934 Signed       2 SYSWMPTK       PAGES PER TRACK ON WARMSTART
    0790 1936 Signed       4 SYSWMSCH       SUBCHANNEL NUMBER OF WARMSTART
                                            DEVICE
    0794 1940 Bitstring    1 SYSAUTYP       Automatic Start type Bits for
                                            SYSAUTYP are defined in HCPEQUAT
    0795 1941 Bitstring    1 SYSAUTOP       Automatic Start options Bits for
                                            SYSAUTOP are defined in HCPEQUAT
    0796 1942 Bitstring    1 SYSAITYP       Initial automatic Start type Bits
                                            for SYSAUTYP are defined in
                                            HCPEQUAT
    0797 1943 Bitstring    1 SYSAITOP       Initial automatic Start options
                                            Bits for SYSAUTOP are defined in
                                            HCPEQUAT
    0798 1944 Bitstring    1 SYSARTYP       Restart Automatic Start type Bits
                                            for SYSARTYP are defined in
                                            HCPEQUAT
    0799 1945 Bitstring    1 SYSARTOP       Restart Automatic Start options
                                            Bits for SYSARTOP are defined in
                                            HCPEQUAT
    079A 1946 Bitstring    1 SYSASTYP       SHUTDOWN REIPL Automatic Start
                                            type Bits for SYSASTYP are
                                            defined in HCPEQUAT
    079B 1947 Bitstring    1 SYSASTOP       SHUTDOWN REIPL Automatic Start
                                            options Bits for SYSASTOP are
                                            defined in HCPEQUAT
    079C 1948 Signed       4 *              RESERVED FOR FUTURE IBM USE
    07A0 1952 Signed       4 *              RESERVED FOR FUTURE IBM USE
    07A4 1956 Signed       4 *              RESERVED FOR FUTURE IBM USE
         TRACE SERVICE TOOLS CONTROL BLOCK ANCHORS AND RELATED FIELDS.
    07A8 1960 Address      4 SYSTSTBK       POINTER TO TRACE SERVICE TOOL
                                            BLOCK (TSTBK)
    07AC 1964 Address      4 SYSTPEBK       POINTER TO TAPE I/O BLOCK (TPEBK)
    07B0 1968 Signed       4 SYSTSTTH       TRACE SERVICE TOOL PRG16 WORK
                                            COUNTER
    07B4 1972 Signed       4 SYSTSTCM       TRACE SERVICE TOOL PRG16
                                            COMPARATOR
    07B8 1976 Bitstring    1 SYSTSTFL       TRACE SERVICE TOOL STATUS FLAG
              1... ....      SYSTSTAV       X'80' TRACE SERVICE TOOL
                                            CURRENTLY ACTIVE
              .1.. ....      SYSTSTRS       X'40' TRACE SERVICE TOOL RESET IN
                                            PROGRESS
              ..1. ....      SYSTSTTM       X'20' TRACE SERVICE TOOL IN
                                            TERMINATION
    07B9 1977 Bitstring    3 *              RESERVED FOR IBM USE
    07BC 1980 Signed       4 SYSTSTLK       TRACE SERVICE TOOL COMMAND LOCK
    07C0 1984 Signed       4 *              RESERVED FOR IBM USE
    07C4 1988 Signed       4 *              RESERVED FOR IBM USE
    07C8 1992 Signed       4 *              RESERVED FOR IBM USE
    07CC 1996 Signed       4 *              RESERVED FOR IBM USE
         SNA/CCS CONTROL BLOCK ANCHORS AND RELATED FIELDS
    07D0 2000 Dbl-Word     8 SYSVSMLK (3)   VSMBK QUEUE LOCK
    07E8 2024 Address      4 SYSVSMBK       ANCHOR FOR THE VSMBK QUEUE
    07EC 2028 Signed       4 SYSLUCNT       COUNT OF SNA/CCS USERS
    07F0 2032 Bitstring    1 SYSSNAFL       SNA/CCS FLAG
              1... ....      SYSSNAEN       X'80' SNA/CCS IS ENABLED
    07F1 2033 Bitstring    3 *              RESERVED FOR IBM USE
    07F4 2036 Signed       4 SYSLGNCT       VTAM logon user cyclic counter
    07F8 2040 Signed       4 *              RESERVED FOR IBM USE
    07FC 2044 Signed       4 *              RESERVED FOR IBM USE
    0800 2048 Signed       4 *              RESERVED FOR IBM USE
    0804 2052 Signed       4 *              RESERVED FOR IBM USE
         VECTOR FACILITY FIELDS
    0808 2056 Signed       4 SYSVFPRM (0)
    0808 2056 Signed       2 SYSVFSSZ       VECTOR FACILITY SECTION SIZE
    080A 2058 Signed       2 SYSVFPSN       VECTOR FACILITY PARTIAL SUM
                                            NUMBER
    080C 2060 Signed       4 SYSVFOVM       OPERATIONAL VECTOR MAP ***
                                            PRESERVE OVER BOUNCE
    0810 2064 Signed       4 SYSVFIVM       INSTALLED VECTOR MAP
    0814 2068 Signed       4 SYSVFCVM       CONNECTED VECTOR MAP
    0818 2072 Signed       4 SYSVFSVM       STANDBY VECTOR MAP
    081C 2076 Signed       2 *              RESERVED FOR IBM USE
    081E 2078 Bitstring    1 SYSUVFCT       USABLE VECTOR FACILITY COUNT
    081F 2079 Bitstring    1 SYSIVFCT       INSTALLED VECTOR FACILITY COUNT
    0820 2080 Signed       4 *              RESERVED FOR IBM USE
    0824 2084 Signed       4 *              RESERVED FOR IBM USE
    0828 2088 Signed       4 *              RESERVED FOR IBM USE
    082C 2092 Signed       4 *              RESERVED FOR IBM USE
    0830 2096 Signed       4 *              RESERVED FOR IBM USE
    0834 2100 Signed       4 *              RESERVED FOR IBM USE
         System recording control block anchors and related fields.
    0838 2104 Dbl-Word     8 SYSRECLK (3)   System recording queue lock
    0850 2128 Signed       4 *              Reserved for future IBM use
    0854 2132 Bitstring    1 SYSRFLAG       Recording flags
              1... ....      SYSRECIP       X'80' Initialization in progress
              .1.. ....      SYSRECCP       X'40' Checkpoint processed
              ..1. ....      SYSRECMP       X'20' Modified processing
    0855 2133 Character    3 *              Reserved for future IBM use
    0858 2136 Character    8 SYSIEID        Userid to receive I/O error
                                            records
    0860 2144 Character    8 SYSIEID2       2nd Userid to receive I/O error
                                            record
    0868 2152 Character    8 SYSACID        Userid to receive accounting
                                            records
    0870 2160 Character    8 SYSACID2       2nd Userid to receive accounting
                                            recor
    0878 2168 Character    8 SYSSYMP1       Userid to receive symptom records
    0880 2176 Character    8 SYSSYMP2       2nd userid to receive symptom
                                            records
    0888 2184 Character    8 *              Reserved for future IBM use
    0890 2192 Character    8 *              Reserved for future IBM use
    0898 2200 Character    8 *              Reserved for future IBM use
    08A0 2208 Character    8 *              Reserved for future IBM use
    08A8 2216 Character    8 *              Reserved for future IBM use
    08B0 2224 Character    8 *              Reserved for future IBM use
    08B8 2232 Character    8 *              Reserved for future IBM use
    08C0 2240 Address      4 SYSRECQU       Chkpt system records queue
    08C4 2244 Address      4 SYSRECTU       Chkpt system records queue tail
         Journaling function and related fields
    08C8 2248 Character    8 SYSLOGUS       User to be notified of excessive
                                            LOGON attempts
    08D0 2256 Character    8 SYSLNKUS       User to be notified of excessive
                                            LINK attempts
    08D8 2264 Bitstring    1 SYSJURNL       Security journaling flags
              1... ....      SYSJURON       X'80' ON indicates that security
                                            journaling is active
              .1.. ....      SYSSTQJR       X'40' ON indicates that the SET
                                            JOURNAL and QUERY JOURNAL
                                            commands are permitted
              ..1. ....      SYSJRLOG       X'20' ON indicates that logon
                                            journaling is active
              ...1 ....      SYSJRLNK       X'10' ON indicates that link
                                            journaling is active
    08D9 2265 Bitstring    1 SYSINDCT       Number of LOGON attempts
                                            permitted
    08DA 2266 Bitstring    1 SYSINDTM       Minutes to lock out an ID after
                                            excessive LOGON attempts
    08DB 2267 Bitstring    1 SYSLOGAR       Number of LOGON attempts before
                                            accounting records are cut
    08DC 2268 Bitstring    1 SYSLOGMS       Number of LOGON attempts before
                                            operator is notified
    08DD 2269 Bitstring    1 SYSLOGO        Number of LOGON attempts before
                                            logo redisplay (also the number
                                            of AUTOLOG attempts per session)
    08DE 2270 Bitstring    1 SYSLNKAR       Number of LINK attempts before
                                            accounting records are cut
    08DF 2271 Bitstring    1 SYSLNKMS       Number of LINK attempts before
                                            operator is notified
    08E0 2272 Bitstring    1 SYSLNKDS       Number of LINK attempts per
                                            session
         For SYSPSFLG bits, if indicated bit = 0, password is suppressed. If
         indicated bit = 1, password is allowed.
    08E1 2273 Bitstring    1 SYSPSFLG       PASSWORD SUPPRESSION FLAG
              1... ....      SYSPSLNK       X'80' LINK
              .1.. ....      SYSPSLOG       X'40' LOGON
              ..1. ....      SYSPSAUL       X'20' AUTOLOG
              ...1 ....      SYSPSETP       X'10' SET PRIVCLASS
    08E2 2274 Character    6 *              Reserved for IBM future use
    08E8 2280 Character    8 *              Reserved for IBM future use
         CP utility address space ALETs
    08F0 2288 Signed       4 SYSVFMAL       Virtual free storage address
                                            space
    08F4 2292 Signed       4 SYSSYSAL       SYSTEM address space
    08F8 2296 Signed       4 *              Reserved for IBM use
    08FC 2300 Signed       4 *              Reserved for IBM use
    0900 2304 Signed       4 *              Reserved for IBM use
    0904 2308 Signed       4 *              Reserved for IBM use
    0908 2312 Signed       4 *              Reserved for IBM use
    090C 2316 Signed       4 *              Reserved for IBM use
    0910 2320 Signed       4 *              Reserved for IBM use
    0914 2324 Signed       4 *              Reserved for IBM use
         CP utility address space IASITs
    0918 2328 Dbl-Word     8 SYSVFMIA       Virtual free storage address
                                            space
    0920 2336 Dbl-Word     8 SYSSYSIA       SYSTEM address space
    0928 2344 Dbl-Word     8 *              Reserved for IBM use
    0930 2352 Dbl-Word     8 *              Reserved for IBM use
    0938 2360 Dbl-Word     8 *              Reserved for IBM use
    0940 2368 Dbl-Word     8 *              Reserved for IBM use
    0948 2376 Dbl-Word     8 *              Reserved for IBM use
    0950 2384 Dbl-Word     8 *              Reserved for IBM use
    0958 2392 Dbl-Word     8 *              Reserved for IBM use
    0960 2400 Dbl-Word     8 *              Reserved for IBM use
         Security field definitions (Any security relevant system function
         entries added in the future should be between SYSSECUR and SYSSCEND. In
         addition, update HCPSCU and HCPSCUBK accordingly.)
    0968 2408 Bitstring    1 SYSSECUR (0)   Security flags for system
                                            functions
    0968 2408 Bitstring    1 SYSIUCVC       IUCV connect security flags
    0969 2409 Bitstring    1 SYSIUCVS       IUCV sever security flags
    096A 2410 Bitstring    1 SYSAPPCC       APPC connect security flags
    096B 2411 Bitstring    1 SYSAPPW        APPC connect w/password security
                                            flag
    096C 2412 Bitstring    1 SYSAPPCS       APPC sever security flags
    096D 2413 Bitstring    1 SYSSCREA       SPOOL file create security flags
    096E 2414 Bitstring    1 SYSSDELE       SPOOL file delete security flags
    096F 2415 Bitstring    1 SYSSOPEN       SPOOL file open security flags
    0970 2416 Bitstring    1 SYSDCREA       SDF file create security flags
    0971 2417 Bitstring    1 SYSDDELE       SDF file delete security flags
    0972 2418 Bitstring    1 SYSDDOPN       SDF file open security flags
    0973 2419 Bitstring    1 SYSCPPRT       CP Print security flags
    0974 2420 Bitstring    1 SYSMDISK       MDISK security flags
    0975 2421 Bitstring    1 SYSMCCW        Maintenance CCW
    0976 2422 Bitstring    1 SYSRSEG        Load/Find a restricted segment
    0977 2423 Bitstring    1 SYSSCEND (0)   End of security relevant system
                                            function entries
    0977 2423 Bitstring    1 SYSACIST       If the MAC bit is on, SECLABEL
                                            checking is enabled. If the
                                            PROTECT bit is on, the system is
                                            in a 'tranquil' stage.
    0978 2424 Character   16 *              Reserved for future IBM use
         Alternate system operator user IDs
    0988 2440 Character   64 SYSALTOP (0)   Alternate system operator user
                                            IDs
    0988 2440 Character    8 SYSALTO1       1st alternate system operator ID
    0990 2448 Character    8 SYSALTO2       2nd alternate system operator ID
    0998 2456 Character    8 SYSALTO3       3rd alternate system operator ID
    09A0 2464 Character    8 SYSALTO4       4th alternate system operator ID
    09A8 2472 Character    8 SYSALTO5       5th alternate system operator ID
    09B0 2480 Character    8 SYSALTO6       6th alternate system operator ID
    09B8 2488 Character    8 SYSALTO7       7th alternate system operator ID
    09C0 2496 Character    8 SYSALTO8       8th alternate system operator ID
              00000008       SYSALTNM       (*-SYSALTOP)/8 Number of
                                            alternate operator IDs allowed
         Miscellaneous and Overflow from other sections.
    09C8 2504 Dbl-Word     8 * (0)          Make sure dbl wd boundry for
                                            PRQHD
    09C8 2504 Bitstring   24 SYSPRQHD       PERSYS Persistent SYSPERM free
                                            storage queue header - mapped by
                                            HCPPRQHD
         Variables used by Diagnose X'238'.
    09E0 2528 Dbl-Word     8 SYSCLCK        Last time stamp value given out
                                            by diagnose x'238'.
    09E8 2536 Signed       4 SYSCLKSQ       Clock Sequence number used by
                                            Diagnose X'238'.
    09EC 2540 Bitstring    1 SYSCLKLK       Test and Set lock. Hold this lock
                                            to update SYSCLCK and SYSCLKSQ.
    09ED 2541 Bitstring    1 SYSIOPQF       I/O Priority Queueing Flags
              1... ....      SYSIOPQI       X'80' I/O Priority Queueing
                                            facility installed.
              .1.. ....      SYSORBEX       X'40' ORB Extension supported bit
    09EE 2542 Bitstring    1 * (2)          Reserved for future IBM use
    09F0 2544 Address      4 SYSNCNFG       A( BITMP ) for DEVICES_NOTSENSED
    09F4 2548 Address      4 SYSDVOFF       A( BITMP ) for OFFLINE_AT_IPL
    09F8 2552 Address      4 SYSDVNAC       A( BITMP ) for
                                            DEVICES_NOTACCEPTED
    09FC 2556 Address      4 SYSSCMAP       A(Pointers to SCMBK index
                                            bitmaps)
    0A00 2560 Address      4 SYSDVTHR       A( BITMP ) for
                                            DEVICES_NOTTHROTtled
    0A04 2564 Address      4 SYSDVNME       A( BITMP ) for
                                            DEVICES_NOTMEASURED
    0A08 2568 Address      4 SYSDVDYN       A( BITMP ) for DEVICES_NO_DYNAMIC
    0A0C 2572 Address      4 SYSDVSHR       A( BITMP ) for DEVICES_SHARED
    0A10 2576 Address      4 SYSPRVCL       Pointer to PRIV_CLASSES modify
                                            area
    0A14 2580 Address      4 SYSLOCAT       Pointer to first SYMLH block
    0A18 2584 Address      4 SYSDVASN       A( BITMP ) for
                                            DEVICES_ASSIGN_at_ipl
    0A1C 2588 Address      4 SYSHLQBK       Hardware Loader Queue Block
    0A20 2592 Address      4 SYSPFTAB       Pointer to POSIX PID First Table
    0A24 2596 Signed       4 *              Reserved for future IBM use
    0A28 2600 Address      4 SYSXRPTR       POSIX exec() request chain
                                            pointer
    0A2C 2604 Signed       4 SYSXRNXT       Next request id to be given out
    0A30 2608 Address      4 SYSXRTRQ       Address of the TRQBK for exec()
                                            processing.
    0A34 2612 Address      4 SYSVPHDR       Adapter Interrupt Facility Header
                                            BLK
    0A38 2616 Signed       4 SYSXAHND       exec() activation handle
    0A3C 2620 Address      4 SYSXREGB       exec() REGBK pointer
    0A40 2624 Address      4 SYSPEDBK       Pointer to Product Enablement
                                            Data Bk
    0A44 2628 Signed       4 SYSTOINT       Logoff timeout interval in
                                            minutes
    0A48 2632 Dbl-Word     8 SYSSYNCH       System synchronization mask
    0A50 2640 Address      4 SYSCRYBK       AP Crypto control block (CRYBK)
                                            ptr, if an AP PCI cryptographic
                                            coprocessor is installed in the
                                            configuration
    0A54 2644 Signed       4 *              Reserved for future IBM use
    0A58 2648 Dbl-Word     8 *              Reserved for future IBM use
    0A60 2656 Character    5 SYSDFLNG       Default language for CP messages
    0A65 2661 Bitstring    3 *              Reserved for future IBM use
    0A68 2664 Signed       2 SYSQTIME       Default Signal Shutdown timeout
                                            (sec)
    0A6A 2666 Signed       2 SYSSQTIM       Default System Shutdown timeout
                                            (sec)
    0A6C 2668 Address      4 SYSQTRQB       Delayed shutdown TRQBK address
    0A70 2672 Dbl-Word     8 *              Reserved for future IBM use
    0A78 2680 Dbl-Word     8 *              Reserved for future IBM use
    0A80 2688 Dbl-Word     8 *              Reserved for future IBM use
    0A88 2696 Dbl-Word     8 *              Reserved for future IBM use
    0A90 2704 Signed       4 *              Reserved for future IBM use
    0A94 2708 Bitstring    1 SYSIOPQH       I/O Priority Queueing Hardware
                                            Flags
              1... ....      SYSIOPQA       X'80' I/O Priority Queueing
                                            facility active Other SYSIOPQH
                                            bits reserved for hardware
    0A95 2709 Bitstring    1 SYSIOPLO       I/O Priority - system minimum
    0A96 2710 Bitstring    1 SYSIOPHI       I/O Priority - system maximum
    0A97 2711 Bitstring    1 *              RESERVED FOR IBM HARDWARE USE
    0A98 2712 Dbl-Word     8 *              Reserved for future IBM use
    0AA0 2720 Dbl-Word     8 *              Reserved for future IBM use
    0AA8 2728 Dbl-Word     8 *              Reserved for future IBM use
    0AB0 2736 Dbl-Word     8 *              Reserved for future IBM use
    0AB8 2744 Dbl-Word     8 *              Reserved for future IBM use
    0AC0 2752 Dbl-Word     8 *              Reserved for future IBM use
    0AC8 2760 Dbl-Word     8 *              Reserved for future IBM use
    0AD0 2768 Dbl-Word     8 *              Reserved for future IBM use
    0AD8 2776 Dbl-Word     8 *              Reserved for future IBM use
    0AE0 2784 Dbl-Word     8 *              Reserved for future IBM use
    0AE8 2792 Dbl-Word     8 *              Reserved for future IBM use
    0AF0 2800 Dbl-Word     8 *              Reserved for future IBM use
    0AF8 2808 Dbl-Word     8 *              Reserved for future IBM use
              00000160       SYSSIZE        (*-SYSSTRT+7)/8 SIZE OF COMMON
                                            AREA
    0000    0 Signed       4 SYSCLOKL       LEFT MOST WORD OF TOD CLOCK
    0008    8 Character    2 SYSMONTH       CURRENT MONTH
    000A   10 Character    1 SYSSLSH1       FIRST SLASH
    000B   11 Character    2 SYSDAY         CURRENT DAY
    000D   13 Character    1 SYSSLSH2       SECOND SLASH
    000E   14 Character    2 SYSYEAR        CURRENT YEAR
    03E0  992 Bitstring    3 SYSDPAGE       Page portion of directory DASD
                                            address
    03E3  995 Bitstring    1 SYSDVOL        CP VOLUME CODE
    03E0  992 Bitstring    2 SYSDCC         CC PORTION OF DIRECTORY DASD
                                            ADDRESS
    03E2  994 Bitstring    1 SYSDRCTP       P PORTION OF DIRECTORY DASD
                                            ADDRESS
    03FA 1018 Bitstring    1 SYSD1PB0       BYTE OF ZERO
    03FB 1019 Bitstring    1 SYSD1PB1       BYTE CONTAINING THE ACTUAL VALUE

#### SYSCM Storage Layout

    *** SYSCM - SYSTEM COMMON AREA
    *
    *     +-------------------------------------------------------+
    *   0 |                       SYSCLOK                         |
    *     +-------------------------------------------------------+
    *   8 |                       SYSDATE                         |
    *     +-------------------------------------------------------+
    *  10 |                       SYSTODMD                        |
    *     +-------------------------------------------------------+
    *  18 |                       SYSTODST                        |
    *     +-------------------------------------------------------+
    *  20 |                       SYSTERM                         |
    *     +-------------------------------------------------------+
    *  28 |///////////////////////////////////////////////////////|
    *     +-------------------------------------------------------+
    *  30 |///////////////////////////////////////////////////////|
    *     +-------------------------------------------------------+
    *  38 |///////////////////////////////////////////////////////|
    *     +-------------------------------------------------------+
    *  40 |///////////////////////////////////////////////////////|
    *     +-------------------------------------------------------+
    *  48 |///////////////////////////////////////////////////////|
    *     +-------------------------------------------------------+
    *  50 |///////////////////////////////////////////////////////|
    *     +-------------------------------------------------------+
    *  58 |                       SYSTMID                         |
    *     +-----------------------------------------+------+------+
    *  60 |                SYSVOLD                  |:MXRTV|:DFRTV|
    *     +-----------------------------------------+------+------+
    *  68 |                       SYSOPER                         |
    *     +-------------------------------------------------------+
    *  70 |                       SYSDUMP                         |
    *     +-------------+----------------------------------+------+
    *  78 |  SYSCPUA    |            SYSCPUID              |(07F)-|
    *     +-------------+------+---------------------------+------+
    *  80 |      -SYSTOD       |            SYSALTPG              |
    *     +--------------------+                    +-------------+
    *  88 |                                         |/////////////|
    *     +-----------------------------------------+-------------+
    *  90 |                SYSCKVOL                 |   (096)-    |
    *     +---------------------------+-------------+-------------+
    *  98 |        -SYSWMVOL          |         SYSACPBK          |
    *     +---------------------------+---------------------------+
    *  A0 |         SYSEQUID          |         SYSCSETB          |
    *     +------+------+-------------+---------------------------+
    *  A8 |:VRFSG|:VRFLG|/////////////|         SYSPWCHN          |
    *     +------+------+-------------+---------------------------+
    *  B0 |                       SYSLOGFN                        |
    *     +-------------------------------------------------------+
    *  B8 |                       SYSLOGFT                        |
    *     +-------------------------------------------------------+
    *  C0 |                       SYSAUTID                        |
    *     +---------------------------+------+--------------------+
    *  C8 |         SYSTYPE1          |SYSIID|////////////////////|
    *     +---------------------------+------+--------------------+
    *  D0 |///////////////////////////////////////////////////////|
    *     +-------------------------------------------------------+
    *  D8 |///////////////////////////////////////////////////////|
    *     +-------------------------------------------------------+
    *  E0 |                       SYSWKDY                         |
    *     |             +------+------+--------------------+------+
    *  E8 |             |:DAYN |:DAYL |      SYSZNID       |//////|
    *     +-------------+------+------+--------------------+------+
    *  F0 |         SYSZANCR          |///////////////////////////|
    *     +---------------------------+---------------------------+
    *  F8 |///////////////////////////////////////////////////////|
    *     +-------------------------------------------------------+
    * 100 |///////////////////////////////////////////////////////|
    *     +-------------------------------------------------------+
    * 108 |///////////////////////////////////////////////////////|
    *     +------+------+------+------+------+------+------+------+
    * 110 |:LEND |:LDEL |:CDEL |:ESCP |SYSTAB|:ALDEL|:MLEVL|//////|
    *     +------+------+------+------+------+------+------+------+
    * 118 |//////|//////|//////|//////|//////|//////|//////|//////|
    *     +------+------+------+------+------+------+------+------+
    * 120 |///////////////////////////////////////////////////////|
    *     +---------------------------+---------------------------+
    * 128 |         SYSECONS          |         SYSRCNT           |
    *     +---------------------------+---------------------------+
    * 130 |         SYSRESDV          |         SYSRDEVL          |
    *     +---------------------------+---------------------------+
    * 138 |         SYSDVFRX          |         SYSDVFLX          |
    *     +---------------------------+---------------------------+
    * 140 |         SYSCUIPT          |         SYSRDCBK          |
    *     +---------------------------+---------------------------+
    * 148 |         SYSSDMCM          |         SYSRIOIX          |
    *     +---------------------------+---------------------------+
    * 150 |         SYSRIOPC          |         SYSRIOSM          |
    *     +---------------------------+---------------------------+
    * 158 |         SYSSCMAX          |         SYSCPDMP          |
    *     +---------------------------+---------------------------+
    * 160 |         SYSCMCP1          |         SYSCMCP2          |
    *     +---------------------------+---------------------------+
    * 168 |///////////////////////////|///////////////////////////|
    *     +---------------------------+---------------------------+
    * 170 |         SYSVMVR           |         SYSVRLOC          |
    *     +---------------------------+---------------------------+
    * 178 |         SYSOPADR          |         SYSDYNID          |
    *     +---------------------------+---------------------------+
    * 180 |         SYSVMVRO          |         SYSVROLD          |
    *     +---------------------------+---------------------------+
    * 188 |         SYSOLDIX          |///////////////////////////|
    *     +---------------------------+---------------------------+
    * 190 |         SYSTP3CT          |         SYSTP3PT          |
    *     +---------------------------+---------------------------+
    * 198 |///////////////////////////|///////////////////////////|
    *     +---------------------------+---------------------------+
    * 1A0 |         SYSVOLS           |         SYSVOLCT          |
    *     +---------------------------+---------------------------+
    * 1A8 |         SYSUVOL           |         SYSIVOL           |
    *     +---------------------------+---------------------------+
    * 1B0 |         SYSXVOL           |         SYSVOLLK          |
    *     +---------------------------+---------------------------+
    * 1B8 |///////////////////////////|///////////////////////////|
    *     +---------------------------+---------------------------+
    * 1C0 |///////////////////////////|///////////////////////////|
    *     +---------------------------+---------------------------+
    * 1C8 |///////////////////////////|///////////////////////////|
    *     +---------------------------+---------------------------+
    * 1D0 |         SYSDELQ           |         SYSSCTT           |
    *     +---------------------------+---------------------------+
    * 1D8 |         SYSPRTT           |         SYSPUNT           |
    *     +---------------------------+---------------------------+
    * 1E0 |         SYSRDRT           |         SYSFORMT          |
    *     +---------------------------+---------------------------+
    * 1E8 |         SYSFILID          |         SYSSFNDX          |
    *     +---------------------------+---------------------------+
    * 1F0 |          SYSINQ           |         SYSOUTQ           |
    *     +---------------------------+---------------------------+
    * 1F8 |         SYSDATAQ          |         SYSIENDQ          |
    *     +---------------------------+---------------------------+
    * 200 |         SYSOENDQ          |         SYSDENDQ          |
    *     +---------------------------+---------------------------+
    * 208 |         SYSCAPQ           |         SYSCSPID          |
    *     +---------------------------+---------------------------+
    * 210 |         SYSFLAST          |         SYSRESV1          |
    *     +---------------------------+---------------------------+
    * 218 |         SYSDLYPQ          |         SYSSECTB          |
    *     +---------------------------+---------------------------+
    * 220 |         SYSVSNDX          |         SYSIDRQ           |
    *     +---------------------------+---------------------------+
    * 228 |///////////////////////////|///////////////////////////|
    *     +---------------------------+---------------------------+
    * 230 |         SYSPRFIX          |          SYSSCH           |
    *     +---------------------------+---------------------------+
    * 238 |         SYSPCSBK          |         SYSLOGM           |
    *     +---------------------------+---------------------------+
    * 240 |          SYSIDL           |         SYSSCPBK          |
    *     +---------------------------+---------------------------+
    * 248 |         SYSVRRVM          |         SYSLANG           |
    *     +---------------------------+---------------------------+
    * 250 |         SYSDSIBK          |         SYSSSCBK          |
    *     +---------------------------+---------------------------+
    * 258 |         SYSRCSI           |         SYSCSINF          |
    *     +---------------------------+---------------------------+
    * 260 |         SYSCSAPT          |         SYSVRIFS          |
    *     +---------------------------+---------------------------+
    * 268 |         SYSBLOP           |         SYSUIRP           |
    *     +---------------------------+---------------------------+
    * 270 |         SYSCSCHR          |         SYSQDGBL          |
    *     +---------------------------+---------------------------+
    * 278 |         SYSSLPBK          |         SYSADDIN          |
    *     +---------------------------+---------------------------+
    * 280 |         SYSLFCFN          |         SYST1RDV          |
    *     +---------------------------+---------------------------+
    * 288 |         SYSCFTOK          |         SYSTRGTK          |
    *     +---------------------------+---------------------------+
    * 290 |         SYSDIAGS          |         SYSEXITS          |
    *     +---------------------------+---------------------------+
    * 298 |         SYSDLUBK          |         SYSPXIBK          |
    *     +---------------------------+-------------+-------------+
    * 2A0 |         SYSXTSIZ          |  SYSXSTPG   |  SYSXSTMG   |
    *     +-------------+-------------+-------------+-------------+
    * 2A8 |  SYSXMCPR   |  SYSXMCPW   |  SYSXMCHR   |/////////////|
    *     +-------------+-------------+-------------+-------------+
    * 2B0 |         SYSXTUSR          |        SYSXTPSV-          |
    *     +---------------------------+---------------------------+
    * 2B8 |          -(2B4)           |///////////////////////////|
    *     +---------------------------+---------------------------+
    * 2C0 |///////////////////////////|///////////////////////////|
    *     +---------------------------+---------------------------+
    * 2C8 |///////////////////////////|///////////////////////////|
    *     +---------------------------+---------------------------+
    * 2D0 |///////////////////////////|///////////////////////////|
    *     +---------------------------+-------------+-------------+
    * 2D8 |         SYSTRAC           |  SYSTRCPC   |  SYSLPRCT   |
    *     +---------------------------+-------------+-------------+
    * 2E0 |         SYSUSRS           |         SYSDIALD          |
    *     +-------------+-------------+-------------+-------------+
    * 2E8 |  SYSMCHCT   |  SYSMCHOF   |  SYSCPUS    |  SYSPGRAT   |
    *     +-------------+-------------+-------------+-------------+
    * 2F0 |         SYSLOGON          |         SYSPGSLT          |
    *     +---------------------------+---------------------------+
    * 2F8 |         SYSPGCYL          |         SYSSYNCK          |
    *     +---------------------------+---------------------------+
    * 300 |         SYSRSVPG          |         SYSTANSS          |
    *     +---------------------------+---------------------------+
    * 308 |         SYSTADCS          |         SYSSFCRT          |
    *     +---------------------------+---------------------------+
    * 310 |         SYSSFPUR          |         SYS98XA           |
    *     +---------------------------+-------------+-------------+
    * 318 |///////////////////////////|  SYSPGSTL   |  SYSPGLOD   |
    *     +---------------------------+-------------+-------------+
    * 320 |         SYSOIECT          |         SYSTHRCT          |
    *     +---------------------------+---------------------------+
    * 328 |         SYSSCMEX          |         SYSSCMAV          |
    *     +-------------+-------------+---------------------------+
    * 330 |  SYSTFFFE   |/////////////|///////////////////////////|
    *     +-------------+-------------+---------------------------+
    * 338 |///////////////////////////|///////////////////////////|
    *     +---------------------------+---------------------------+
    * 340 |///////////////////////////|///////////////////////////|
    *     +---------------------------+---------------------------+
    * 348 |///////////////////////////|///////////////////////////|
    *     +---------------------------+---------------------------+
    * 350 |///////////////////////////|///////////////////////////|
    *     +---------------------------+---------------------------+
    * 358 |///////////////////////////|///////////////////////////|
    *     +---------------------------+---------------------------+
    * 360 |///////////////////////////|///////////////////////////|
    *     +---------------------------+---------------------------+
    * 368 |         SYSTORS           |         SYSVRSZ           |
    *     +---------------------------+---------------------------+
    * 370 |         SYSVRFRE          |///////////////////////////|
    *     +-------------+-------------+---------------------------+
    * 378 |/////////////|/////////////|         SYSVRREQ          |
    *     +-------------+-------------+---------------------------+
    * 380 |         SYSVRSZO          |         SYSVRFRO          |
    *     +---------------------------+---------------------------+
    * 388 |         SYSLODPA          |         SYSFTLEN          |
    *     +---------------------------+---------------------------+
    * 390 |                       SYSGTORS                        |
    *     +-------------------------------------------------------+
    * 398 |                       SYSMACHL                        |
    *     +---------------------------+---------------------------+
    * 3A0 |         SYSMAXU           |         SYSHIMAX          |
    *     +---------------------------+-------------+-------------+
    * 3A8 |         SYSMSPID          |  SYSAFLMT   |  SYSMAXLD   |
    *     +---------------------------+-------------+-------------+
    * 3B0 |         SYSLDCNT          |///////////////////////////|
    *     +---------------------------+---------------------------+
    * 3B8 |///////////////////////////|///////////////////////////|
    *     +---------------------------+---------------------------+
    * 3C0 |///////////////////////////|///////////////////////////|
    *     +---------------------------+---------------------------+
    * 3C8 |///////////////////////////|///////////////////////////|
    *     +---------------------------+---------------------------+
    * 3D0 |///////////////////////////|///////////////////////////|
    *     +---------------------------+---------------------------+
    * 3D8 |///////////////////////////|///////////////////////////|
    *     +---------------------------+---------------------------+
    * 3E0 |         SYSDRCT           |         SYSDHDR           |
    *     +---------------------------+---------------------------+
    * 3E8 |         SYSDCTL           |         SYSDIRVL          |
    *     +---------------------------+---------------------------+
    * 3F0 |         SYSDVIRT          |         SYSDPGS           |
    *     +-------------+-------------+---------------------------+
    * 3F8 |  SYSDPCYL   |  SYSD1STP   |///////////////////////////|
    *     +-------------+-------------+---------------------------+
    * 400 |///////////////////////////|///////////////////////////|
    *     +---------------------------+---------------------------+
    * 408 |///////////////////////////|///////////////////////////|
    *     +---------------------------+---------------------------+
    * 410 |                                                       |
    *     =                       SYSDATLK                        =
    *     |                                                       |
    *     +-------------------------------------------------------+
    * 428 |                                                       |
    *     =                       SYSDRLOK                        =
    *     |                                                       |
    *     +-------------------------------------------------------+
    * 440 |                                                       |
    *     =                       SYSTPELK                        =
    *     |                                                       |
    *     +-------------------------------------------------------+
    * 458 |                                                       |
    *     =                       SYSDBDLK                        =
    *     |                                                       |
    *     +-------------------------------------------------------+
    * 470 |                                                       |
    *     =                       SYSLCKC4                        =
    *     |                                                       |
    *     +-------------------------------------------------------+
    * 488 |                                                       |
    *     =                       SYSLNGLK                        =
    *     |                                                       |
    *     +-------------------------------------------------------+
    * 4A0 |                                                       |
    *     =                       SYSCR6LK                        =
    *     |                                                       |
    *     +-------------------------------------------------------+
    * 4B8 |                                                       |
    *     =                       SYSHVSLK                        =
    *     |                                                       |
    *     +-------------------------------------------------------+
    * 4D0 |                                                       |
    *     =                       SYSSECLK                        =
    *     |                                                       |
    *     +-------------------------------------------------------+
    * 4E8 |                                                       |
    *     =                       SYSCAPLK                        =
    *     |                                                       |
    *     +-------------------------------------------------------+
    * 500 |                                                       |
    *     =                       SYSPWDLK                        =
    *     |                                                       |
    *     +-------------------------------------------------------+
    * 518 |                                                       |
    *     =                       SYSUSXLK                        =
    *     |                                                       |
    *     +-------------------------------------------------------+
    * 530 |                                                       |
    *     =                       SYSRDXLK                        =
    *     |                                                       |
    *     +-------------------------------------------------------+
    * 548 |                                                       |
    *     =                       SYSHRTLK                        =
    *     |                                                       |
    *     +-------------------------------------------------------+
    * 560 |                                                       |
    *     =                       SYSRFRLK                        =
    *     |                                                       |
    *     +-------------------------------------------------------+
    * 578 |                                                       |
    *     =                       SYSPIDLK                        =
    *     |                                                       |
    *     +-------------------------------------------------------+
    * 590 |                                                       |
    *     =                       SYSXRQLK                        =
    *     |                                                       |
    *     +-------------------------------------------------------+
    * 5A8 |                                                       |
    *     =                       SYSTHRLK                        =
    *     |                                                       |
    *     +-------------------------------------------------------+
    * 5C0 |                                                       |
    *     =                       SYSCUILK                        =
    *     |                                                       |
    *     +-------------------------------------------------------+
    * 5D8 |                                                       |
    *     =                       SYSCFLCK                        =
    *     |                                                       |
    *     +-------------------------------------------------------+
    * 5F0 |                                                       |
    *     =                       SYSSYNLK                        =
    *     |                                                       |
    *     +-------------------------------------------------------+
    * 608 |                                                       |
    *     =                       SYSALILK                        =
    *     |                                                       |
    *     +-------------------------------------------------------+
    * 620 |                                                       |
    *     =                       SYSPEDLK                        =
    *     |                                                       |
    *     +-------------------------------------------------------+
    * 638 |                                                       |
    *     =                       SYSCFNLK                        =
    *     |                                                       |
    *     +------+------+------+------+---------------------------+
    * 650 |:SABND|:UHOLD|:DMPTY|//////|         SYSVRYBK          |
    *     +------+------+------+------+---------------------------+
    * 658 |///////////////////////////|///////////////////////////|
    *     +---------------------------+---------------------------+
    * 660 |///////////////////////////|///////////////////////////|
    *     +---------------------------+---------------------------+
    * 668 |///////////////////////////|///////////////////////////|
    *     +---------------------------+---------------------------+
    * 670 |///////////////////////////|///////////////////////////|
    *     +---------------------------+---------------------------+
    * 678 |///////////////////////////|///////////////////////////|
    *     +---------------------------+---------------------------+
    * 680 |         SYSZONE           |         SYSNSPID          |
    *     +---------------------------+---------------------------+
    * 688 |         SYSLCPUA          |         SYSMALFM          |
    *     +---------------------------+---------------------------+
    * 690 |         SYSMBCT           |         SYSCORCT          |
    *     +------+------+------+------+------+------+------+------+
    * 698 |SYSISC|:VPCIF|:RPCIF|:RCPFG|:PFMLY|:DPTRQ|:INITL|:MODDP|
    *     +------+------+------+------+------+------+------+------+
    * 6A0 |                       SYSABNCD                        |
    *     +---------------------------+---------------------------+
    * 6A8 |          SYSOPR           |         SYSCPRD           |
    *     +---------------------------+---------------------------+
    * 6B0 |         SYSCPWT           |         SYSSERV           |
    *     +---------------------------+---------------------------+
    * 6B8 |         SYSDFLT           |        SYSLNGVR-          |
    *     +------+------+-------------+---------------------------+
    * 6C0 |-(6BC)|:VLPP |  SYSSERLG   |         SYSNGMAX          |
    *     +------+------+------+------+------+------+------+------+
    * 6C8 |:PXESM|//////|:IPLF3|:MISC |:UDEF1|:IPLF2|:DYNFG|:IOIST|
    *     +------+------+------+------+------+------+------+------+
    * 6D0 |:IOPST|:RESFL|:IOFI |:IPLFL|         SYSDRFC6          |
    *     +------+------+------+------+-------------+-------------+
    * 6D8 |         SYSSECTL          |  SYSCONSL   |  SYSPDNUM   |
    *     +---------------------------+-------------+-------------+
    * 6E0 |         SYSPDSTA          |         SYSPDEND          |
    *     +---------------------------+-------------+-------------+
    * 6E8 |                SYSPDVOL                 |  SYSPDADR   |
    *     +------+------+------+------+------+------+------+------+
    * 6F0 |:AUTFL|:ASSRT|:CONSF|:DIST |:FEAT |  SYSIUCV    |:DATFL|
    *     +------+------+------+------+------+-------------+------+
    * 6F8 |         SYSLOKQ           |         SYSHOLQ           |
    *     +---------------------------+---------------------------+
    * 700 |         SYSSECQ           |          SYSPWD           |
    *     +---------------------------+---------------------------+
    * 708 |         SYSVRDV           |         SYSTHRPT          |
    *     +---------------------------+---------------------------+
    * 710 |         SYSPPROC          |         SYSLPARS          |
    *     +---------------------------+---------------------------+
    * 718 |         SYSPIDAL          |         SYSALIAS          |
    *     +---------------------------+---------------------------+
    * 720 |///////////////////////////|///////////////////////////|
    *     +---------------------------+---------------------------+
    * 728 |///////////////////////////|///////////////////////////|
    *     +-------------+------+------+---------------------------+
    * 730 |  SYSDVNO    |:NCFLG|:DTYP |         SYSNUCS           |
    *     +-------------+------+------+-------------+-------------+
    * 738 |         SYSNUCN           |  SYSPCYL    |  SYSPTRK    |
    *     +---------------------------+-------------+-------------+
    * 740 |///////////////////////////|         SYSNUCSC          |
    *     +---------------------------+---------------------------+
    * 748 |                       SYSCONFN                        |
    *     +-------------------------------------------------------+
    * 750 |                       SYSCONFT                        |
    *     +------+------+------+------+---------------------------+
    * 758 |//////|:CKFLG|:CKVCD|:CKTYP|         SYSCKPS           |
    *     +------+------+------+------+-------------+-------------+
    * 760 |         SYSCKPN           |  SYSCKPCY   |  SYSCKPTK   |
    *     +---------------------------+-------------+-------------+
    * 768 |///////////////////////////|         SYSCKSCH          |
    *     +---------------------------+---------------------------+
    * 770 |///////////////////////////|///////////////////////////|
    *     +---------------------------+---------------------------+
    * 778 |///////////////////////////|///////////////////////////|
    *     +------+------+------+------+---------------------------+
    * 780 |//////|:WMFLG|:WMVCD|:WMTYP|         SYSWRMS           |
    *     +------+------+------+------+-------------+-------------+
    * 788 |         SYSWRMN           |  SYSWMPCY   |  SYSWMPTK   |
    *     +---------------------------+------+------+------+------+
    * 790 |         SYSWMSCH          |:AUTYP|:AUTOP|:AITYP|:AITOP|
    *     +------+------+------+------+------+------+------+------+
    * 798 |:ARTYP|:ARTOP|:ASTYP|:ASTOP|///////////////////////////|
    *     +------+------+------+------+---------------------------+
    * 7A0 |///////////////////////////|///////////////////////////|
    *     +---------------------------+---------------------------+
    * 7A8 |         SYSTSTBK          |         SYSTPEBK          |
    *     +---------------------------+---------------------------+
    * 7B0 |         SYSTSTTH          |         SYSTSTCM          |
    *     +------+--------------------+---------------------------+
    * 7B8 |:TSTFL|////////////////////|         SYSTSTLK          |
    *     +------+--------------------+---------------------------+
    * 7C0 |///////////////////////////|///////////////////////////|
    *     +---------------------------+---------------------------+
    * 7C8 |///////////////////////////|///////////////////////////|
    *     +---------------------------+---------------------------+
    * 7D0 |                                                       |
    *     =                       SYSVSMLK                        =
    *     |                                                       |
    *     +---------------------------+---------------------------+
    * 7E8 |         SYSVSMBK          |         SYSLUCNT          |
    *     +------+--------------------+---------------------------+
    * 7F0 |:SNAFL|////////////////////|         SYSLGNCT          |
    *     +------+--------------------+---------------------------+
    * 7F8 |///////////////////////////|///////////////////////////|
    *     +---------------------------+---------------------------+
    * 800 |///////////////////////////|///////////////////////////|
    *     +-------------+-------------+---------------------------+
    * 808 |  SYSVFSSZ   |  SYSVFPSN   |         SYSVFOVM          |
    *     +-------------+-------------+---------------------------+
    * 810 |         SYSVFIVM          |         SYSVFCVM          |
    *     +---------------------------+-------------+------+------+
    * 818 |         SYSVFSVM          |/////////////|:UVFCT|:IVFCT|
    *     +---------------------------+-------------+------+------+
    * 820 |///////////////////////////|///////////////////////////|
    *     +---------------------------+---------------------------+
    * 828 |///////////////////////////|///////////////////////////|
    *     +---------------------------+---------------------------+
    * 830 |///////////////////////////|///////////////////////////|
    *     +---------------------------+---------------------------+
    * 838 |                                                       |
    *     =                       SYSRECLK                        =
    *     |                                                       |
    *     +---------------------------+------+--------------------+
    * 850 |///////////////////////////|:RFLAG|////////////////////|
    *     +---------------------------+------+--------------------+
    * 858 |                       SYSIEID                         |
    *     +-------------------------------------------------------+
    * 860 |                       SYSIEID2                        |
    *     +-------------------------------------------------------+
    * 868 |                       SYSACID                         |
    *     +-------------------------------------------------------+
    * 870 |                       SYSACID2                        |
    *     +-------------------------------------------------------+
    * 878 |                       SYSSYMP1                        |
    *     +-------------------------------------------------------+
    * 880 |                       SYSSYMP2                        |
    *     +-------------------------------------------------------+
    * 888 |///////////////////////////////////////////////////////|
    *     +-------------------------------------------------------+
    * 890 |///////////////////////////////////////////////////////|
    *     +-------------------------------------------------------+
    * 898 |///////////////////////////////////////////////////////|
    *     +-------------------------------------------------------+
    * 8A0 |///////////////////////////////////////////////////////|
    *     +-------------------------------------------------------+
    * 8A8 |///////////////////////////////////////////////////////|
    *     +-------------------------------------------------------+
    * 8B0 |///////////////////////////////////////////////////////|
    *     +-------------------------------------------------------+
    * 8B8 |///////////////////////////////////////////////////////|
    *     +---------------------------+---------------------------+
    * 8C0 |         SYSRECQU          |         SYSRECTU          |
    *     +---------------------------+---------------------------+
    * 8C8 |                       SYSLOGUS                        |
    *     +-------------------------------------------------------+
    * 8D0 |                       SYSLNKUS                        |
    *     +------+------+------+------+------+------+------+------+
    * 8D8 |:JURNL|:INDCT|:INDTM|:LOGAR|:LOGMS|:LOGO |:LNKAR|:LNKMS|
    *     +------+------+------+------+------+------+------+------+
    * 8E0 |:LNKDS|:PSFLG|/////////////////////////////////////////|
    *     +------+------+-----------------------------------------+
    * 8E8 |///////////////////////////////////////////////////////|
    *     +---------------------------+---------------------------+
    * 8F0 |         SYSVFMAL          |         SYSSYSAL          |
    *     +---------------------------+---------------------------+
    * 8F8 |///////////////////////////|///////////////////////////|
    *     +---------------------------+---------------------------+
    * 900 |///////////////////////////|///////////////////////////|
    *     +---------------------------+---------------------------+
    * 908 |///////////////////////////|///////////////////////////|
    *     +---------------------------+---------------------------+
    * 910 |///////////////////////////|///////////////////////////|
    *     +---------------------------+---------------------------+
    * 918 |                       SYSVFMIA                        |
    *     +-------------------------------------------------------+
    * 920 |                       SYSSYSIA                        |
    *     +-------------------------------------------------------+
    * 928 |///////////////////////////////////////////////////////|
    *     +-------------------------------------------------------+
    * 930 |///////////////////////////////////////////////////////|
    *     +-------------------------------------------------------+
    * 938 |///////////////////////////////////////////////////////|
    *     +-------------------------------------------------------+
    * 940 |///////////////////////////////////////////////////////|
    *     +-------------------------------------------------------+
    * 948 |///////////////////////////////////////////////////////|
    *     +-------------------------------------------------------+
    * 950 |///////////////////////////////////////////////////////|
    *     +-------------------------------------------------------+
    * 958 |///////////////////////////////////////////////////////|
    *     +-------------------------------------------------------+
    * 960 |///////////////////////////////////////////////////////|
    *     +------+------+------+------+------+------+------+------+
    * 968 |:IUCVC|:IUCVS|:APPCC|:APPW |:APPCS|:SCREA|:SDELE|:SOPEN|
    *     +------+------+------+------+------+------+------+------+
    * 970 |:DCREA|:DDELE|:DDOPN|:CPPRT|:MDISK|:MCCW |:RSEG |:ACIST|
    *     +------+------+------+------+------+------+------+------+
    * 978 |///////////////////////////////////////////////////////|
    *     |///////////////////////////////////////////////////////|
    *     +-------------------------------------------------------+
    * 988 |                       SYSALTO1                        |
    *     +-------------------------------------------------------+
    * 990 |                       SYSALTO2                        |
    *     +-------------------------------------------------------+
    * 998 |                       SYSALTO3                        |
    *     +-------------------------------------------------------+
    * 9A0 |                       SYSALTO4                        |
    *     +-------------------------------------------------------+
    * 9A8 |                       SYSALTO5                        |
    *     +-------------------------------------------------------+
    * 9B0 |                       SYSALTO6                        |
    *     +-------------------------------------------------------+
    * 9B8 |                       SYSALTO7                        |
    *     +-------------------------------------------------------+
    * 9C0 |                       SYSALTO8                        |
    *     +-------------------------------------------------------+
    * 9C8 |                                                       |
    *     =                       SYSPRQHD                        =
    *     |                                                       |
    *     +-------------------------------------------------------+
    * 9E0 |                       SYSCLCK                         |
    *     +---------------------------+------+------+-------------+
    * 9E8 |         SYSCLKSQ          |:CLKLK|:IOPQF|/////////////|
    *     +---------------------------+------+------+-------------+
    * 9F0 |         SYSNCNFG          |         SYSDVOFF          |
    *     +---------------------------+---------------------------+
    * 9F8 |         SYSDVNAC          |         SYSSCMAP          |
    *     +---------------------------+---------------------------+
    * A00 |         SYSDVTHR          |         SYSDVNME          |
    *     +---------------------------+---------------------------+
    * A08 |         SYSDVDYN          |         SYSDVSHR          |
    *     +---------------------------+---------------------------+
    * A10 |         SYSPRVCL          |         SYSLOCAT          |
    *     +---------------------------+---------------------------+
    * A18 |         SYSDVASN          |         SYSHLQBK          |
    *     +---------------------------+---------------------------+
    * A20 |         SYSPFTAB          |///////////////////////////|
    *     +---------------------------+---------------------------+
    * A28 |         SYSXRPTR          |         SYSXRNXT          |
    *     +---------------------------+---------------------------+
    * A30 |         SYSXRTRQ          |         SYSVPHDR          |
    *     +---------------------------+---------------------------+
    * A38 |         SYSXAHND          |         SYSXREGB          |
    *     +---------------------------+---------------------------+
    * A40 |         SYSPEDBK          |         SYSTOINT          |
    *     +---------------------------+---------------------------+
    * A48 |                       SYSSYNCH                        |
    *     +---------------------------+---------------------------+
    * A50 |         SYSCRYBK          |///////////////////////////|
    *     +---------------------------+---------------------------+
    * A58 |///////////////////////////////////////////////////////|
    *     +----------------------------------+--------------------+
    * A60 |            SYSDFLNG              |////////////////////|
    *     +-------------+-------------+------+--------------------+
    * A68 |  SYSQTIME   |  SYSSQTIM   |         SYSQTRQB          |
    *     +-------------+-------------+---------------------------+
    * A70 |///////////////////////////////////////////////////////|
    *     +-------------------------------------------------------+
    * A78 |///////////////////////////////////////////////////////|
    *     +-------------------------------------------------------+
    * A80 |///////////////////////////////////////////////////////|
    *     +-------------------------------------------------------+
    * A88 |///////////////////////////////////////////////////////|
    *     +---------------------------+------+------+------+------+
    * A90 |///////////////////////////|:IOPQH|:IOPLO|:IOPHI|//////|
    *     +---------------------------+------+------+------+------+
    * A98 |///////////////////////////////////////////////////////|
    *     +-------------------------------------------------------+
    * AA0 |///////////////////////////////////////////////////////|
    *     +-------------------------------------------------------+
    * AA8 |///////////////////////////////////////////////////////|
    *     +-------------------------------------------------------+
    * AB0 |///////////////////////////////////////////////////////|
    *     +-------------------------------------------------------+
    * AB8 |///////////////////////////////////////////////////////|
    *     +-------------------------------------------------------+
    * AC0 |///////////////////////////////////////////////////////|
    *     +-------------------------------------------------------+
    * AC8 |///////////////////////////////////////////////////////|
    *     +-------------------------------------------------------+
    * AD0 |///////////////////////////////////////////////////////|
    *     +-------------------------------------------------------+
    * AD8 |///////////////////////////////////////////////////////|
    *     +-------------------------------------------------------+
    * AE0 |///////////////////////////////////////////////////////|
    *     +-------------------------------------------------------+
    * AE8 |///////////////////////////////////////////////////////|
    *     +-------------------------------------------------------+
    * AF0 |///////////////////////////////////////////////////////|
    *     +-------------------------------------------------------+
    * AF8 |///////////////////////////////////////////////////////|
    *     +-------------------------------------------------------+
    * B00
    *
    *** SYSCM - SYSTEM COMMON AREA

    *** Overlay for SYSCLOK in SYSCM
    *
    *     +---------------------------+
    *   0 |         SYSCLOKL          | 4
    *     +---------------------------+
    *
    *** Overlay for SYSCLOK in SYSCM

    *** Overlay for SYSDATE in SYSCM
    *
    *     +-------------+------+-------------+------+-------------+
    *   8 |  SYSMONTH   |:SLSH1|   SYSDAY    |:SLSH2|  SYSYEAR    |
    *     +-------------+------+-------------+------+-------------+
    *  10
    *
    *** Overlay for SYSDATE in SYSCM

    *** Overlay for SYSDRCT in SYSCM
    *
    *     +--------------------+------+
    * 3E0 |     SYSDPAGE       |:DVOL | 3E4
    *     +--------------------+------+
    *
    *** Overlay for SYSDRCT in SYSCM

    *** Overlay for SYSDPAGE in SYSCM
    *
    *     +-------------+------+
    * 3E0 |   SYSDCC    |:DRCTP| 3E3
    *     +-------------+------+
    *
    *** Overlay for SYSDPAGE in SYSCM

    *** Overlay for SYSD1STP in SYSCM
    *
    *                   +------+------+
    * 3F8 ...       3FA |:D1PB0|:D1PB1| 3FC
    *                   +------+------+
    *
    *** Overlay for SYSD1STP in SYSCM

#### SYSCM Cross Reference

    Symbol         Dspl Value
    -------------- ---- -----
    SYSABNCD       06A0
    SYSACID        0868
    SYSACID2       0870
    SYSACIST       0977
    SYSACPBK       009C
    SYSADDIN       027C
    SYSAFLMT       03AC
    SYSAFMLY       069C 01
    SYSAITOP       0797
    SYSAITYP       0796
    SYSALDEL       0115
    SYSALIAS       071C
    SYSALILK       0608
    SYSALTNM       09C0 00000008
    SYSALTOP       0988
    SYSALTO1       0988
    SYSALTO2       0990
    SYSALTO3       0998
    SYSALTO4       09A0
    SYSALTO5       09A8
    SYSALTO6       09B0
    SYSALTO7       09B8
    SYSALTO8       09C0
    SYSALTPG       0083
    SYSAPCF        069B 08
    SYSAPISH       069B 80
    SYSAPPCC       096A
    SYSAPPCS       096C
    SYSAPPW        096B
    SYSARTOP       0799
    SYSARTYP       0798
    SYSASRLK       06F1 01
    SYSASRON       06F1 80
    SYSASRVM       06F1 40
    SYSASSRT       06F1
    SYSASTOP       079B
    SYSASTYP       079A
    SYSAUAC1       06F0 80
    SYSAUAC2       06F0 40
    SYSAUER1       06F0 20
    SYSAUER2       06F0 10
    SYSAUSM1       06F0 08
    SYSAUSM2       06F0 04
    SYSAUSTR       06F0 02
    SYSAUTFL       06F0
    SYSAUTID       00C0
    SYSAUTOP       0795
    SYSAUTYP       0794
    SYSBFMLY       069C 08
    SYSBLOP        0268
    SYSCAPLK       04E8
    SYSCAPQ        0208
    SYSCDEL        0112
    SYSCFINV       06CE 80
    SYSCFLCK       05D8
    SYSCFNLK       0638
    SYSCFTOK       0288
    SYSCINIT       069E 80
    SYSCIORF       06D2 20
    SYSCKFBA       0759 80
    SYSCKFLG       0759
    SYSCKPCY       0764
    SYSCKPN        0760
    SYSCKPS        075C
    SYSCKPTK       0766
    SYSCKSCH       076C
    SYSCKTYP       075B
    SYSCKVCD       075A
    SYSCKVOL       0090
    SYSCLCK        09E0
    SYSCLKLK       09EC
    SYSCLKSQ       09E8
    SYSCLOK        0000
    SYSCLOKL       0000
    SYSCLRON       06D1 80
    SYSCMCP1       0160
    SYSCMCP2       0164
    SYSCNFMD       06CE 20
    SYSCONFN       0748
    SYSCONFT       0750
    SYSCONIC       06F2 80
    SYSCONID       0748
    SYSCONOM       06F2 40
    SYSCONSF       06F2
    SYSCONSL       06DC
    SYSCONSN       06D2 80
    SYSCORCT       0694
    SYSCPDMP       015C
    SYSCPMF        06D2 04
    SYSCPPRT       0973
    SYSCPRD        06AC
    SYSCPUA        0078
    SYSCPUID       007A
    SYSCPUS        02EC
    SYSCPWT        06B0
    SYSCRYBK       0A50
    SYSCR6LK       04A0
    SYSCSAPT       0260
    SYSCSCHR       0270
    SYSCSETB       00A4
    SYSCSINF       025C
    SYSCSPID       020C
    SYSCUILK       05C0
    SYSCUIPT       0140
    SYSDATAQ       01F8
    SYSDATE        0008
    SYSDATFL       06F7
    SYSDATLK       0410
    SYSDAY         000B
    SYSDAYL        00EB
    SYSDAYN        00EA
    SYSDBDLK       0458
    SYSDCC         03E0
    SYSDCREA       0970
    SYSDCTL        03E8
    SYSDDELE       0971
    SYSDDOPN       0972
    SYSDELQ        01D0
    SYSDENDQ       0204
    SYSDFLNG       0A60
    SYSDFLT        06B8
    SYSDFRTV       0067
    SYSDHDR        03E4
    SYSDIAGS       0290
    SYSDIALD       02E4
    SYSDINIT       069E 02
    SYSDIRVL       03EC
    SYSDIST        06F3
    SYSDLUBK       0298
    SYSDLYPQ       0218
    SYSDMPTY       0652
    SYSDODYN       06CE 04
    SYSDPAGE       03E0
    SYSDPCYL       03F8
    SYSDPDET       069D 80
    SYSDPGS        03F4
    SYSDPID        0078
    SYSDPTRQ       069D
    SYSDRCT        03E0
    SYSDRCTP       03E2
    SYSDRFC6       06D4
    SYSDRLOK       0428
    SYSDSIBK       0250
    SYSDTINV       06CB 80
    SYSDTYP        0733
    SYSDUMP        0070
    SYSDVACT       06D2 08
    SYSDVASN       0A18
    SYSDVDYN       0A08
    SYSDVFLX       013C
    SYSDVFRX       0138
    SYSDVIRT       03F0
    SYSDVNAC       09F8
    SYSDVNME       0A04
    SYSDVNO        0730
    SYSDVOFF       09F4
    SYSDVOL        03E3
    SYSDVSHR       0A0C
    SYSDVTHR       0A00
    SYSDYNCF       06CE 40
    SYSDYNFG       06CE
    SYSDYNID       017C
    SYSDYNIO       06D2 02
    SYSD1PB0       03FA
    SYSD1PB1       03FB
    SYSD1STP       03FA
    SYSD2F0I       069B 40
    SYSECONS       0128
    SYSECPMF       06CF 40
    SYSEQUID       00A0
    SYSESCP        0113
    SYSETDEV       06F4 80
    SYSETDYN       06F4 40
    SYSEXITS       0294
    SYSFCCF        06D2 01
    SYSFCTCF       06CF 10
    SYSFC32        06CA 80
    SYSFC32N       06CA 40
    SYSFEAT        06F4
    SYSFILID       01E8
    SYSFLAST       0210
    SYSFORMT       01E4
    SYSFTLEN       038C
    SYSGFMLY       069C 04
    SYSGTORS       0390
    SYSHDVA        06D2 40
    SYSHIMAX       03A4
    SYSHLQBK       0A1C
    SYSHOLQ        06FC
    SYSHRTLK       0548
    SYSHUDSP       0650
    SYSHVSLK       04B8
    SYSICHIO       06CF 80
    SYSICRFC       069B 10
    SYSIDL         0240
    SYSIDRQ        0224
    SYSIEID        0858
    SYSIEID2       0860
    SYSIENDQ       01FC
    SYSIID         00CC
    SYSINDCT       08D9
    SYSINDTM       08DA
    SYSINITL       069E
    SYSINQ         01F0
    SYSIOFI        06D2
    SYSIOFI3       06D2 10
    SYSIOIL2       069F 10
    SYSIOIST       06CF
    SYSIOPAC       06D0 80
    SYSIOPHI       0A96
    SYSIOPLO       0A95
    SYSIOPQA       0A94 80
    SYSIOPQF       09ED
    SYSIOPQH       0A94
    SYSIOPQI       09ED 80
    SYSIOPST       06D0
    SYSIOPXA       069F 20
    SYSIOP37       069F 40
    SYSIPLFL       06D3
    SYSIPLF2       06CD
    SYSIPLF3       06CA
    SYSISC         0698
    SYSISUSC       069E 04
    SYSIUCV        06F5
    SYSIUCVC       0968
    SYSIUCVS       0969
    SYSIUTOL       06F3 40
    SYSIUYES       06F3 80
    SYSIVFCT       081F
    SYSIVOL        01AC
    SYSJRLNK       08D8 10
    SYSJRLOG       08D8 20
    SYSJURNL       08D8
    SYSJURON       08D8 80
    SYSLANG        024C
    SYSLCKC4       0470
    SYSLCPUA       0688
    SYSLDCNT       03B0
    SYSLDEL        0111
    SYSLEND        0110
    SYSLFCFN       0280
    SYSLFMLY       069C 02
    SYSLGACC       06D1 10
    SYSLGACI       06D1 08
    SYSLGNCT       07F4
    SYSLGUSR       06D1 04
    SYSLNGLK       0488
    SYSLNGVR       06BC
    SYSLNKAR       08DE
    SYSLNKDS       08E0
    SYSLNKMS       08DF
    SYSLNKUS       08D0
    SYSLOCAT       0A14
    SYSLODPA       0388
    SYSLOGAR       08DB
    SYSLOGFN       00B0
    SYSLOGFT       00B8
    SYSLOGID       00B0
    SYSLOGM        023C
    SYSLOGMS       08DC
    SYSLOGO        08DD
    SYSLOGON       02F0
    SYSLOGUS       08C8
    SYSLOKQ        06F8
    SYSLPARS       0714
    SYSLPRCT       02DE
    SYSLUCNT       07EC
    SYSMACHL       0398
    SYSMALFM       068C
    SYSMAXLD       03AE
    SYSMAXU        03A0
    SYSMBCT        0690
    SYSMCCW        0975
    SYSMCHCT       02E8
    SYSMCHOF       02EA
    SYSMCHRC       02E8
    SYSMDISK       0974
    SYSMIF         069F 08
    SYSMIFMD       069F 04
    SYSMISC        06CB
    SYSMLEVL       0116
    SYSMODDP       069F
    SYSMONTH       0008
    SYSMSPID       03A8
    SYSMXRTV       0066
    SYSNCFBA       0732 80
    SYSNCFLG       0732
    SYSNCNFG       09F0
    SYSNDISC       06D1 40
    SYSNEXIT       06D3 01
    SYSNGMAX       06C4
    SYSNLOGM       06D1 20
    SYSNODYN       06CE 08
    SYSNOVLD       06CE 01
    SYSNOVRY       06CE 02
    SYSNSPID       0684
    SYSNUCN        0738
    SYSNUCS        0734
    SYSNUCSC       0744
    SYSNULOD       069E 08
    SYSODISC       069E 10
    SYSOENDQ       0200
    SYSOIECT       0320
    SYSOLDIX       0188
    SYSOPADR       0178
    SYSOPER        0068
    SYSOPR         06A8
    SYSORBEX       09ED 40
    SYSORBSM       06CF 20
    SYSOUTQ        01F4
    SYSOVCON       06D3 10
    SYSOVRST       06CD 01
    SYSPARMD       06D3 80
    SYSPCSBK       0238
    SYSPCYL        073C
    SYSPDADR       06EE
    SYSPDEND       06E4
    SYSPDFBA       06D3 02
    SYSPDNUM       06DE
    SYSPDSTA       06E0
    SYSPDVOL       06E8
    SYSPEDBK       0A40
    SYSPEDLK       0620
    SYSPESIA       06CC 40
    SYSPFMLY       069C
    SYSPFTAB       0A20
    SYSPGCYL       02F8
    SYSPGLOD       031E
    SYSPGRAT       02EE
    SYSPGSLT       02F4
    SYSPGSTL       031C
    SYSPIDAL       0718
    SYSPIDLK       0578
    SYSPPROC       0710
    SYSPPROF       06CD 08
    SYSPQDBA       06CC 80
    SYSPRFIX       0230
    SYSPRIPL       06CD 04
    SYSPROMP       06D3 04
    SYSPRQHD       09C8
    SYSPRSRT       06CD 02
    SYSPRTT        01D8
    SYSPRVCL       0A10
    SYSPSAUL       08E1 20
    SYSPSETP       08E1 10
    SYSPSFLG       08E1
    SYSPSLNK       08E1 80
    SYSPSLOG       08E1 40
    SYSPTRK        073E
    SYSPUNT        01DC
    SYSPWCHN       00AC
    SYSPWD         0704
    SYSPWDLK       0500
    SYSPWROF       06F4 01
    SYSPWRPR       06F4 08
    SYSPXESM       06C8
    SYSPXIBK       029C
    SYSPXNO        06C8 00000000
    SYSPXYES       06C8 000000FF
    SYSQDGBL       0274
    SYSQTIME       0A68
    SYSQTRQB       0A6C
    SYSQUISC       06D3 20
    SYSRCFIN       069B 20
    SYSRCNT        012C
    SYSRCPFG       069B
    SYSRCSI        0258
    SYSRDCBK       0144
    SYSRDEVL       0134
    SYSRDGIF       069A 40
    SYSRDRT        01E0
    SYSRDXLK       0530
    SYSRECCP       0854 40
    SYSRECIP       0854 80
    SYSRECLK       0838
    SYSRECMP       0854 20
    SYSRECQU       08C0
    SYSRECTU       08C4
    SYSREIPL       069E 20
    SYSRESDV       0130
    SYSRESFL       06D1
    SYSRESV1       0214
    SYSRFLAG       0854
    SYSRFRLK       0560
    SYSRIOIX       014C
    SYSRIOPC       0150
    SYSRIOSM       0154
    SYSRPCIF       069A
    SYSRPLPR       06F4 04
    SYSRSCIF       069A 80
    SYSRSEG        0976
    SYSRSTPR       06F4 02
    SYSRSVPG       0300
    SYSSABND       0650
    SYSSABNF       0650 08
    SYSSCEND       0977
    SYSSCH         0234
    SYSSCMAP       09FC
    SYSSCMAV       032C
    SYSSCMAX       0158
    SYSSCMEX       0328
    SYSSCPBK       0244
    SYSSCREA       096D
    SYSSCTT        01D4
    SYSSDELE       096E
    SYSSDMCM       0148
    SYSSDSCH       06CB 40
    SYSSECLK       04D0
    SYSSECQ        0700
    SYSSECTB       021C
    SYSSECTL       06D8
    SYSSECUR       0968
    SYSSENSN       06D1 01
    SYSSENSY       06D1 02
    SYSSERLG       06C2
    SYSSERV        06B4
    SYSSFCRT       030C
    SYSSFNDX       01EC
    SYSSFPUR       0310
    SYSSHTDN       0651 80
    SYSSINIT       069E 01
    SYSSIZE        0AF8 00000160
    SYSSI370       069F 80
    SYSSLPBK       0278
    SYSSLSH1       000A
    SYSSLSH2       000D
    SYSSNAEN       07F0 80
    SYSSNAFL       07F0
    SYSSNAPB       0652 00000040
    SYSSNPAB       0650 04
    SYSSOPEN       096F
    SYSSQTIM       0A6A
    SYSSSCBK       0254
    SYSSTIOP       06CF 08
    SYSSTQJR       08D8 40
    SYSSTRT        0000
    SYSSYMP1       0878
    SYSSYMP2       0880
    SYSSYNCH       0A48
    SYSSYNCK       02FC
    SYSSYNLK       05F0
    SYSSYSAL       08F4
    SYSSYSIA       0920
    SYSTAB         0114
    SYSTADCS       0308
    SYSTANSS       0304
    SYSTERM        0020
    SYSTERMB       0652 00000080
    SYSTFFFE       0330
    SYSTHRAL       06F4 20
    SYSTHRCT       0324
    SYSTHRLK       05A8
    SYSTHRPT       070C
    SYSTINIT       069E 40
    SYSTLERR       06D3 40
    SYSTMID        0058
    SYSTOD         007F
    SYSTODMD       0010
    SYSTODST       0018
    SYSTOINT       0A44
    SYSTORS        0368
    SYSTPEBK       07AC
    SYSTPELK       0440
    SYSTP3CT       0190
    SYSTP3PT       0194
    SYSTRAC        02D8
    SYSTRCPC       02DC
    SYSTRGTK       028C
    SYSTRQST       069D 08
    SYSTSTAV       07B8 80
    SYSTSTBK       07A8
    SYSTSTCM       07B4
    SYSTSTFL       07B8
    SYSTSTLK       07BC
    SYSTSTRS       07B8 40
    SYSTSTTH       07B0
    SYSTSTTM       07B8 20
    SYSTYPE1       00C8
    SYST1RDV       0284
    SYSUDEF1       06CC
    SYSUFMLY       069C 00
    SYSUHOLD       0651
    SYSUIRP        026C
    SYSUSRS        02E0
    SYSUSXLK       0518
    SYSUVFCT       081E
    SYSUVOL        01A8
    SYSVDGX        0699 10
    SYSVDG3        0699 20
    SYSVFCVM       0814
    SYSVFIVM       0810
    SYSVFMAL       08F0
    SYSVFMIA       0918
    SYSVFOVM       080C
    SYSVFPRM       0808
    SYSVFPSN       080A
    SYSVFSSZ       0808
    SYSVFSVM       0818
    SYSVLPP        06C1
    SYSVMVR        0170
    SYSVMVRO       0180
    SYSVOLCT       01A4
    SYSVOLD        0060
    SYSVOLLK       01B4
    SYSVOLS        01A0
    SYSVPCIF       0699
    SYSVPHDR       0A34
    SYSVRDV        0708
    SYSVRDYN       00A9 80
    SYSVRFLG       00A9
    SYSVRFRE       0370
    SYSVRFRO       0384
    SYSVRFSG       00A8
    SYSVRIFS       0264
    SYSVRLOC       0174
    SYSVRNIL       0180 00FFFFFE
    SYSVRNON       0180 00000000
    SYSVROLD       0184
    SYSVRREQ       037C
    SYSVRRVM       0248
    SYSVRSTG       0180 00FFFFFF
    SYSVRSZ        036C
    SYSVRSZO       0380
    SYSVRYBK       0654
    SYSVSCX        0699 40
    SYSVSC3        0699 80
    SYSVSMBK       07E8
    SYSVSMLK       07D0
    SYSVSNDX       0220
    SYSWKDY        00E0
    SYSWMFBA       0781 80
    SYSWMFLG       0781
    SYSWMPCY       078C
    SYSWMPTK       078E
    SYSWMSCH       0790
    SYSWMTYP       0783
    SYSWMVCD       0782
    SYSWMVOL       0096
    SYSWRMN        0788
    SYSWRMS        0784
    SYSWRPUP       0651 08
    SYSXAHND       0A38
    SYSXMCHR       02AC
    SYSXMCPR       02A8
    SYSXMCPW       02AA
    SYSXREGB       0A3C
    SYSXRNXT       0A2C
    SYSXRPTR       0A28
    SYSXRQLK       0590
    SYSXRTRQ       0A30
    SYSXSTMG       02A6
    SYSXSTPG       02A4
    SYSXTPSV       02B4
    SYSXTSIZ       02A0
    SYSXTUSR       02B0
    SYSXVOL        01B0
    SYSYEAR        000E
    SYSZANCR       00F0
    SYSZNID        00EC
    SYSZONE        0680
    SYS1DYNC       06CE 10
    SYS1IMG        06CA 20
    SYS2IMG        06CA 10
    SYS98XA        0314

This information is based on z/VM V4R3.0. Last updated on 1 May 2002 at 10:34:03 EDT.
Copyright IBM Corporation, 1990, 2002