Programming Interface Information: This page primarily provides information that is NOT intended to be used as Programming Interfaces of z/VM. This page also documents intended Programming Intefaces that allow the customer to write programs to obatin the services of z/VM. This information is identified where it occurs by an introductory statement.

#### NUCON

Prolog

Control Block Contents
NUCON DSECT

Storage Layout

Cross Reference (Contains links to field and bit definitions)

#### NUCON Prolog

     Name       : NUCON
     Description: Nucleus Constant Area
     DSECT      : NUCON
     Function   : Defines fields in CMS storage page zero

#### NUCON Control Block Content

#### NUCON DSECT

    Hex   Dec Type/Val   Lng Label (dup)    Comments
    ---- ---- --------- ---- -------------- --------
    0000    0 Structure      NUCON          Nucleus Constant Area
                 Fixed Storage Locations
                 These fields (from X'0 to X'200') are reserved for
                 exclusive use of the hardware as defined by the
                 architecture. None of these fields can have initial
                 values. All initialization of this area must be done
                 at run time.
    0000    0 Dbl-Word     8 IPLPSW         Initial program loading PSW
    0008    8 Dbl-Word     8 IPLCCW1        Initial program loading CCW1
    0010   16 Dbl-Word     8 IPLCCW2        Initial program loading CCW2
    0000    0 Dbl-Word     8 RSTNPSW        Restart new PSW
    0008    8 Dbl-Word     8 RSTOPSW        Restart old PSW ------> GPI
                                            <*****************************
                                            ****************-- ACMSCVT This
                                            is the address of CMSCVT, the
                                            simulated OS CVT.
    0010   16 Signed       4 ACMSCVT        Address of simulated OS CVT
                                            ------> End GPI
                                            <*****************************
                                            *-------------
    0014   20 Signed       4 ASYSREF        Address of nucleus address table
    0018   24 Dbl-Word     8 EXTOPSW        External old PSW
    0020   32 Dbl-Word     8 SVCOPSW        Supervisor call old PSW
    0028   40 Dbl-Word     8 PGMOPSW        Program old PSW
    0030   48 Dbl-Word     8 MCKOPSW        Machine-check old PSW
    0038   56 Dbl-Word     8 IOOPSW         Input/output old PSW
    0040   64 Dbl-Word     8 CSW            Channel Status Word
    0048   72 Signed       4 CAW            Channel Address Word
    004C   76 Signed       4 NUCRSV1        Reserved for hardware use
    0050   80 Signed       4 TIMER          Interval timer
    0054   84 Signed       4 NUCRSV2        Reserved for hardware use
    0058   88 Dbl-Word     8 EXTNPSW        External new PSW
    0060   96 Dbl-Word     8 SVCNPSW        Supervisor call new PSW
    0068  104 Dbl-Word     8 PGMNPSW        Program new PSW
    0070  112 Dbl-Word     8 MCKNPSW        Machine-check new PSW
    0078  120 Dbl-Word     8 IONPSW         Input/output new PSW
    0080  128 Dbl-Word     8 CPULOG (48)    CPU logout area
    0080  128 Signed       4 NUCEPARM       External interrupt parameter
    0084  132 Bitstring    2 NUCPUADR       CPU address
    0086  134 Bitstring    2 NUCEXCDE       XA or XC external interrupt code
    0088  136 Bitstring    1 NUCRSV3        Reserved for hardware use
    0089  137 Bitstring    1 NUCSVILC       *6 - SVC ILC
    008A  138 Signed       2 NUCSVCN        N*7 - SVC Interrupt code
    008C  140 Bitstring    1 *              Unused part of program interrupt
    008D  141 Bitstring    1 NUCXAILC       XA or XC mode ILC
    008E  142 Bitstring    2 NUCPGCDE       XA or XC program interrupt code
    0090  144 Signed       4 *              Reserved for hardware use
    0094  148 Signed       2 MONCLASS       N*1 - Monitor call class number
    0096  150 Signed       2 PERCODE        N*2 - Program event recorder code
    0098  152 Signed       4 PERADDR        Program event recorder address
    009C  156 Signed       4 MONCODE        Monitor call code
    00A0  160 Bitstring    1 NUCEXAID       Exception Access ID
    00A1  161 Bitstring    3 *              Reserved for hardware use
    00A4  164 Signed       4 *              Reserved for hardware use
    00A8  168 Signed       4 NUCTXCP        Translation exception data
    00AC  172 Signed       4 * (3)          Reserved for hardware use
    00B8  184 Signed       4 NUCIOSID (0)   XA or XC mode SID causing I/O int
    00B8  184 Signed       2 *              Reserved for hardware use
    00BA  186 Signed       2 NUCIOADR       (EC-mode) I/O device causing int
    00BC  188 Signed       4 NUCINTP        XA or XC mode Interrupt Parameter
    00C0  192 Signed       2 LOWSAVE (0)    Save area for 1st 160 bytes stg.
    00C0  192 Bitstring    1 * (24)         Reserved for hardware use
    00D8  216 Bitstring    8 NUCTIMR        CPU timer save area
    00E0  224 Bitstring    8 NUCCLOK        Clock comparator save area
    00E8  232 Bitstring    8 NUCMCIC (0)    Machine check interrupt code
    00E8  232 Bitstring    1 NUCMCIC0       MCIC byte 0
    00E9  233 Bitstring    1 NUCMCIC1       MCIC byte 1
    00EA  234 Bitstring    1 NUCMCIC2       MCIC byte 2
    00EB  235 Bitstring    1 NUCMCIC3       MCIC byte 3
    00EC  236 Bitstring    1 NUCMCIC4       MCIC byte 4
    00ED  237 Bitstring    1 NUCMCIC5       MCIC byte 5
    00EE  238 Bitstring    1 NUCMCIC6       MCIC byte 6
    00EF  239 Bitstring    1 NUCMCIC7       MCIC byte 7
    00F0  240 Bitstring    1 * (8)          Reserved for hardware use
    00F8  248 Address      4 NUCFSA         Failing storage address
    00FC  252 Signed       4 *              Reserved for hardware use
    0100  256 Signed       4 NUCASIT (2)    Contains the ASIT of the data
                                            space on machine checks related
                                            to storage errors. Will be 0's if
                                            error is in base address space
    0108  264 Bitstring    1 * (24)         Reserved for hardware use
    0120  288 Signed       4 XCARLOG (16)   Access register logout area
    0160  352 Dbl-Word     8 FPRLOG (4)     Floating point register logout
                                            area
    0180  384 Signed       4 GPRLOG (16)    General purpose register logout
                                            area
    01C0  448 Signed       4 ECRLOG (16)    Extended control register logout
                                            area
                 End of Fixed Storage Locations
                 CMS System Fields
    0200  512 Character   32 SYSTEMID       System name and date
    0220  544 Character   64 INSTALID       Installation identification
    0260  608 Character    8 SYSNAME        Name of IPLed saved system
    0268  616 Signed       2 IPLADDR        N*3 - Address of IPLed device
    026A  618 Signed       2 SYSADDR        N*4 - Address of system disk
    026C  620 Signed       4 DEVICE         Device causing last I/O interrupt
    0270  624 Signed       2 HLPADDR        N*5 - Address of HELP disk
    0272  626 Signed       2 NUCYADDR       N*6 - Address of Y-disk
    0274  628 Character   12 FEIBM          ' Component ID-IPCS referenced
    0280  640 Character   24 DIAGTIME       Buffer for Diagnose timer
    0280  640 Character    8 CURRDATE       Current date - mm/dd/yy
    0288  648 Character    8 CURRTIME       Current time - hh:mm:ss
    0290  656 Signed       4 CURRVIRT       Current elapsed virtual time used
    0294  660 Signed       4 CURRCPUT       Current elapsed CPU time used
    0298  664 Signed       4 LASTVIRT       Previous elapsed virtual time use
    029C  668 Signed       4 LASTCPUT       Previous elapsed CPU time used
    02A0  672 Character    8 LASTCMND       Last command issued
    02A8  680 Character    8 PREVCMND       Next to last command
    02B0  688 Character    8 LASTEXEC       Last exec procedure
    02B8  696 Character    8 PREVEXEC       Next to last exec
    02C0  704 Character    8 LASTLMOD       Last module LOADMODed into main
                                            storage
    02C8  712 Character    8 LASTTMOD       Last module LOADMODed into the
                                            transient area.
    02D0  720 Dbl-Word     8 DATIPCMS       Date (mm/dd/yy) at last IPL CMS
    02D8  728 Dbl-Word     8 CLKVALMD       Timer(STCK form) at midnight
                                            (0000 hours)
    02E0  736 Signed       4 NUCENAWA (2)   Work area for nucleus ENABLE
                                            invocations
    02E8  744 Address      4 NUCLDSET       Ptr to LOADSET of PRGBKs
    02EC  748 Bitstring    1 NUCCSLTM       Temp save area for translation
                                            mode for CSL call in XC-mode mach
    02ED  749 Bitstring    1 NUCFSTM        Temp save area for translation
                                            mode for FS calls in XC-mode mach
    02EE  750 Bitstring    1 NUCPRTM        Temp save area for translation
                                            mode for PARSECMD call in XC-mode
    02EF  751 Bitstring    1 NUC2EF         Reserved for future IBM use
    02F0  752 Address      4 NUCAFRSC       Branch Addr for SUBPOOL CREATE
    02F4  756 Address      4 NUCAFRSD       Branch Addr for SUBPOOL DELETE
    02F8  760 Address      4 NUCAFRSR       Branch Addr for SUBPOOL RELEASE
    02FC  764 Signed       4 NUC2FC         Reserved for future IBM use
    0300  768 Address      4 NUCIDAL        IDAL pointer
    0304  772 Signed       4 NUCIDALL       IDAL length
    0308  776 Signed       4 NUCFSR14       R14 savearea in support of BALR
                                            entry processing for FS macros on
                                            XC-mode virtual machine.
    030C  780 Signed       4 NUCPRR14       R14 savearea in support of BALR
                                            entry processing for PARSECMD
                                            macro.
    0310  784 Address      4 NUCITEXC       EXTXCTL entry point in DMSITE
    0314  788 Signed       2 NUC314         Reserved for future IBM use
          The following fields are used by the GLOBAL module to create
          a list for TXTLIB concatenation.
    0316  790 Signed       2 NUCTLANU       TXTLIB alt. number GLOBALed
    0318  792 Signed       4 TXLIBSVA       Alt. libe save area TXTLIBS
    031C  796 Address      4 NUCTLANA       TXTLIB alt. name list address
    0320  800 Address      4 NUCTLADI       TXTLIB alt. directory list addr
    0324  804 Signed       4 NUCTLASI       TXTLIB alt. free storage size
    0328  808 Address      4 NUCAFROC       Branch for Cond CMSSTOR OBTAIN
    032C  812 Address      4 NUCAFROU       Branch for Uncond CMSSTOR OBTAIN
    0330  816 Address      4 NUCAFRRC       Branch for Cond CMSSTOR RELEASE
    0334  820 Address      4 NUCAFRRU       Branch for Uncond CMSSTOR RELEASE
    0338  824 Signed       4 VMSIZEG (2)    Reserved for CEC
    0340  832 Address      4 NUCAMQVM       MQSERIES POINTER FOR CEEPIPI
    0344  836 Address      4 NUCMCKSA       Anchor for DMSITM save area
    0348  840 Signed       4 TXLIBSV        Libe save area TXTLIBs
    034C  844 Signed       4 MACLBSV        Libe save area MACLIBs
    0350  848 Signed       4 TOTLIBS        Total global chains (bytes)
    0354  852 Address      4 NUCTLDIR       TXTLIB directory chain address
    0354  852 Address      4 TXTDIRC        Alternate name for NUCTLDIR
    0358  856 Address      4 NUCLICMD       Anchor to LOAD/INCLUDE c-block
    035C  860 Address      4 NUCTRBUF       Pointer to trace buffer
    0360  864 Signed       4 NUCITSSA (16)  DMSITS general reg save area
                 DEBUG dump parameters
    03A0  928 Dbl-Word     8 DUMPLIST (0)   DEBUG dump parameter list
    03A0  928 Address      4 GRS015         Address of GPR save area
    03A4  932 Address      4 LOC0176        Address of low core save area
    03A8  936 Address      4 FIRSTDMP       Address of first location to dump
    03AC  940 Address      4 LASTDMP        Address of last location to dump
    03B0  944 Address      4 FRS06          Address of FPR save area
    03B4  948 Address      4 DMPTIT         Address of dump title line
    03B8  952 Address      4 NUCSGIOP       Pointer to SGIOP build area
    03BC  956 Character  132 DMPTITLE       Dump title line
    0440 1088 Signed       4 GLBLTABL       Reserved
    0444 1092 Bitstring    1 NUCTRFLG       Trace buffering flag
              1... ....      NUCDMSTR       X'80'
              .1.. ....      NUCTRF40       X'40' Reserved for trace support
              ..1. ....      NUCTRF20       X'20' Reserved for trace support
              ...1 ....      NUCTRF10       X'10' Reserved for trace support
              .... 1...      NUCTRF08       X'08' Reserved for trace support
              .... .1..      NUCTRF04       X'04' Reserved for trace support
              .... ..1.      NUCTRF02       X'02' Reserved for trace support
              .... ...1      NUCTRF01       X'01' Reserved for trace support
    0445 1093 Bitstring    1 NUCFLAGA       Miscellaneous flags
              1... ....      NUCOLDCM       X'80' Two word command processing
                                            flag
              .1.. ....      NUCREADY       X'40' Long/Short RC on READY
                                            Message
              ..1. ....      NUCY2000       X'20' CP has Year 2000 support,
                                            thatis extension of diags
                                            x'14',x'd8', x'bc',x'264' & new
                                            diag x'270'
              ...1 ....      USRVERSN       X'10' The VERSION at X'200'not
                                            deflt
              .... 1...      NUC44508       X'08' Reserved for future IBM use
              .... .1..      NUC44504       X'04' Reserved for future IBM use
              .... ..1.      NUC44502       X'02' Reserved for future IBM use
              .... ...1      NUCZARCH       X'01' Reserved for CEC
    0448 1096 Address      4 ERR$202        User error address
    044E 1102 Signed       2 CURRCENT       Century part of CURRDATE BATCH
                                            monitor information
    0450 1104 Bitstring    1 BATFLAGS       BATCH flags
              1... ....      BATRUN         X'80' BATCH monitor running
              .1.. ....      BATLOAD        X'40' Loading BATCH processor
              ..1. ....      BATNOEX        X'20' Suppress user job execution
              ...1 ....      BATRERR        X'10' BATCH reader error
              .... 1...      BATCPEX        X'08' CP command executing
              .... .1..      BATUSEX        X'04' User job executing
              .... ..1.      BATMOVE        X'02' MOVEFILE executing from
                                            terminal
              .... ...1      BATTERM        X'01' User job being flushed
    0451 1105 Bitstring    1 BATFLAG2       More BATCH flags
              1... ....      BATXLIM        X'80' User job limit exceeded
              .1.. ....      BATXCPU        X'40' CPU time exceeded
              ..1. ....      BATXPRT        X'20' No. printed lines exceeded
              ...1 ....      BATXPUN        X'10' No. punched cards exceeded
              .... 1...      BATDCMS        X'08' Disabled CMS command called
              .... .1..      BATIPLSS       X'04' BATCH IPLing saved system
              .... ..1.      BATSTOP        X'02' BATCH stopping after
                                            current job
              .... ...1      BATSYSAB       X'01' System ABEND in progress
    0452 1106 Bitstring    1 BATFLAG3       More BATCH flags
              1... ....      BATCPFNG       X'80' CPF link failure
              .1.. ....      BATPRT         X'40' LOADVFCB was issued
              ..1. ....      BATCPCH        X'20' BATCH CP check flag
              ...1 ....      BATABNAB       X'10' System ABEND is ABENDing
              .... 1...      NUC45208       X'08' Reserved for future IBM use
              .... .1..      NUC45204       X'04' Reserved for future IBM use
              .... ..1.      NUC45202       X'02' Reserved for future IBM use
              .... ...1      NUC45201       X'01' Reserved for future IBM use
    0453 1107 Bitstring    1 BATFLAG4       BATCH virtual printer type
              1... ....      NUC45380       X'80' Reserved for future IBM use
              .1.. ....      NUC45340       X'40' Reserved for future IBM use
              ..1. ....      NUC45320       X'20' Reserved for future IBM use
              ...1 ....      NUC45310       X'10' Reserved for future IBM use
              .... 1...      NUC45308       X'08' Reserved for future IBM use
              .... .1..      NUC45304       X'04' Reserved for future IBM use
              .... ..1.      NUC45302       X'02' Reserved for future IBM use
              .... ...1      NUC45301       X'01' Reserved for future IBM use
                                            BATCH processor entry points
    0454 1108 Address      4 ABATPROC       Main entry
    0458 1112 Address      4 ABATABND       User job ABEND entry
    045C 1116 Address      4 ABATLIMT       User job limits table
    0460 1120 Address      4 AUSERRST       Restart entry point
    0464 1124 Signed       4 NUSERFWD       Fullword for users
    0468 1128 Signed       4 NUCRSV7        Reserved for future use DOS
                                            library pointers
    046C 1132 Signed       4 DOSLBSV        Libe save area DOSLIBS
    0470 1136 Signed       4 NUCROSAD       DMSROS workarea address
    0474 1140 Signed       2 NUCROSDW       DMSROS workarea size in Dwords
    0476 1142 Signed       2 NUC476         Reserved for future IBM use
    0478 1144 Address      4 NUCAVW         Addr of Alternate-VSAM workarea
    047C 1148 Signed       4 NUCMTAV        MT address vector
    0480 1152 Signed       4 NUCAPLD        PLD anchor
    0484 1156 Bitstring    2 NUCMTFLG (0)   MT flags
    0484 1156 Bitstring    1 NUCMTFL0       1st MT flag byte
              1... ....      NUCMTMP        X'80' MP enabled
              .1.. ....      NUCMTNB        X'40' nonbase processor
              ..1. ....      NUCMTA24       X'20' caller amode 24
              ...1 ....      NUCMTRTE       X'10' run thread exists
              .... 1...      NUCMTISG       X'08' console input signal wanted
              .... .1..      NUCMTDS        X'04' drop special segment
              .... ..1.      NUCMTDSP       X'02' have started dispatching
              .... ...1      NUCMTEN        X'01' mt call issued
    0485 1157 Bitstring    1 NUCMTFL1       second MT flag byte
              1... ....      NUCMTCWT       X'80' in command wait
              .1.. ....      NUCMTSFS       X'40' monitor sfs async io
              ..1. ....      NUCMTEXC       X'20' exec() is in progress
                                            somewhere
              ...1 ....      NUCMT1SG       X'10' con1ecb signal wanted
              .... 1...      NUCMTROO       X'08' root processes exist
              .... .1..      NUCMTFRK       X'04' fork is allowed
    0486 1158 Bitstring    1 NUCBCPU (2)    base CPU address
    0488 1160 Signed       4 NUCAKGA        KGA anchor
    048C 1164 Signed       4 NUCOSMP        MT OS Sim
    0490 1168 Address      4 NUCOSPL        OS simulation plist address
    0494 1172 Address      4 NUCOSPLL       OS simulation plist length
    0498 1176 Address      4 NUCCELGT       Addr of Get CEL Anchor routine
    049C 1180 Address      4 NUCCELST       Addr of Set CEL Anchor routine
    04A0 1184 Address      4 NUCMACLS       Anchor for SET/QUERY MACLSUBS
    04A4 1188 Address      4 NUCCELSV       Addr of SVC CEL Anchor routine
    04A8 1192 Signed       4 NUCPPID        Current posix pid
    04AC 1196 Signed       4 NUC4AC         Reserved for OPENVM support
    04B0 1200 Signed       4 NUCTCBO        TCB OLD pointer
    04B4 1204 Signed       4 NUCTCBN        TCB NEW pointer
    04B8 1208 Signed       4 NUC4B8         Reserved for OPENVM support
    04BC 1212 Signed       4 NUC4BC         Reserved for future IBM use
    04C0 1216 Signed       4 NUCRSK         Reusable Server Kernel
              00NUCRSK       NUC4C0         NUCRSK RSK modules say NUC4C0
    04C4 1220 Signed       4 NUC4C4         Reserved for future IBM use
    04C8 1224 Signed       4 NUC4C8         Reserved for future IBM use
    04CC 1228 Signed       4 NUC4CC         Reserved for future IBM use
    04D0 1232 Signed       4 NUC4D0         Reserved for future IBM use
    04D4 1236 Signed       4 NUC4D4         Reserved for future IBM use
    04D8 1240 Bitstring    1 DOSFLAGS       DOS simulation flags
              1... ....      DOSMODE        X'80' DOS environment flag
              .1.. ....      DOSSVC         X'40' DOS SVC simulation flag
              ..1. ....      DOSVSAM        X'20' DOS VSAM running flag
              ...1 ....      DOSCOMP        X'10' DOS complier running flag
              .... 1...      DOSPIO         X'08' DOS printer indicator
              .... .1..      VSMINSTL       X'04' VSAM install flag to
                                            relocate DCSS table
              .... ..1.      NUCOSDLB       X'02' OS DLBL was issued
              .... ...1      DOSEOJ         X'01' Indicates DMSDOS EOJ
                                            processing
    04D9 1241 Bitstring    1 DOSRC          DOS return code to user
    04DA 1242 Bitstring    1 NUC4DA         Reserved for future IBM use
    04DB 1243 Bitstring    1 NUC4DB         Reserved for future IBM use
    04DC 1244 Address      4 ALTASAVE       Address of LTA save area
    04E0 1248 Address      4 ABGCOM         Address of partition comm. region
    04E4 1252 Address      4 ASYSCOM        Address of system comm. region
    04E8 1256 Address      4 ADOSDCSS       Address of DOS DCSS
    04EC 1260 Signed       4 SVC12SAV       Work area for SVC12
    04F0 1264 Address      4 DOSFIRST       Address of first DOSCB in chain
    04F4 1268 Signed       2 DOSNUM         Number of DOSCBs in chain
    04F6 1270 Signed       2 DOSKPART       Number of K-bytes in DOS
                                            partition
    04F8 1272 Address      4 APPSAVE        Address of prob. prog. save area
    04FC 1276 Address      4 DOSTRANS       Address of DOS transient area
    0500 1280 Signed       4 AALTCVT        Alternate addr field for CVT
    0504 1284 Signed       4 DMNTECB        DMSTIO DEMOUNT timer ECB
    0508 1288 Signed       4 NUC508         Reserved for future IBM use
    050C 1292 Signed       4 NUC50C         Reserved for future IBM use
    0510 1296 Signed       4 NUC510         Reserved for future IBM use
    0514 1300 Signed       4 NUC514         Reserved for future IBM use
    0518 1304 Signed       4 NUC518         Reserved for future IBM use
    051C 1308 Signed       4 NUC51C         Reserved for future IBM use
    0520 1312 Address      4 ANUCEND        End of DMSNUC
    0524 1316 Address      4 AUSRAREA       Start of CMS user area
    0528 1320 Address      4 CURRSAVE       Address of current save area
    052C 1324 Signed       2 CODE203        Code number of last SVC 203
    052E 1326 Signed       2 NUC52E         Reserved for future IBM use
    0530 1328 Address      4 NUCFRWRK       A(Storage Management Work Area)
          V-constants for calling 'ADTLKP/ADTNXT/ADTLKW' via BALR calls:
    0534 1332 Address      4 VCADTLKP       BALR equivalent of 'ADTLKP'
    0538 1336 Address      4 VCADTNXT       BALR equivalent of 'ADTNXT'
    053C 1340 Address      4 VCADTLKW       BALR equivalent of 'ADTLKW'
                 Console I/O pointers
    0540 1344 Address      4 CURRIOOP       Address of current I/O buffer
    0544 1348 Address      4 PENDREAD       Address of pending read operation
    0548 1352 Address      4 PENDWRIT       Address of pending write
                                            operation
    054C 1356 Address      4 FSTFINRD       Address of finished read buffer
    0550 1360 Address      4 LSTFINRD       Address of last finished read
                                            buffer
    0554 1364 Address      4 AINTRTBL       Address of user input translate
                                            table
    0558 1368 Address      4 AOUTRTBL       Address of user output translate
                                            table
    055C 1372 Signed       2 NUMFINRD       Number of finished read buffers
    055E 1374 Signed       2 NUMPNDWR       Number of pending write
                                            operations Loader information
    0560 1376 Signed       4 VMSIZE         Virtual memory size
    0564 1380 Signed       4 ALDRTBLS       Address of the loader tables
    0568 1384 Signed       4 STRTADDR       Module starting address
    056C 1388 Signed       4 FRSTLOC        Module beginning address
    0570 1392 Signed       4 LASTLOC        Module ending address
    0574 1396 Signed       4 LOCCNT         Loader location counter
    0578 1400 Signed       4 LDRADDR        Loader return address
    057C 1404 Signed       4 LDRRTCD        Loader return code
    0580 1408 Dbl-Word     8 PSW            User's starting PSW
    0588 1416 Signed       4 LDRFLAGS       Loader flags
    058C 1420 Signed       4 PRHOLD         Pseudo register counter
    0590 1424 Signed       2 TBENT          Initialize table entries to zero
    0592 1426 Bitstring    1 UNRES
    0593 1427 Bitstring    1 MODFLGS        MOD flags
              1... ....      NOMAPFLG       X'80' NOMAP flag
              .1.. ....      CLEAROP        X'40' CLEAR option flag
              ..1. ....      MODGNDOS       X'20' Module generated with DOS
                                            option
              ...1 ....      MODGNALL       X'10' Module generated with ALL
                                            option
              .... 1...      SYSLOAD        X'08' Allow load >FREELOWE or
                                            <TRANS
              .... .1..      MDPCALL        X'04' Indicate call from DMSMDP
              .... ..1.      LOADINCL       X'02' LOAD, INCLUDE 1=LOAD
                                            0=INCLUDE
              .... ...1      GEN370FL       X'01' SET GEN370 Flag 0=ON
                                            <Initial setting> 1=OFF
    0594 1428 Signed       4 GET1           DMSLSY R1 save location
    0598 1432 Signed       4 DSYM (2)       DMSLSY work space
    05A0 1440 Signed       4 JSYM           DMSLSY unique symbol base
    05A4 1444 Character    1 NXTSYM         1st char of unique symbol
    05A5 1445 Bitstring    7 *              Rest of unique symbol
    05AC 1452 Signed       4 ALIASENT       Alias entry point (dynamic load)
    05B0 1456 Signed       4 DYNAEND        Max. load loc. (dynamic load) OS
                                            simulation pointers
    05B4 1460 Address      4 NUCLCNTA       Location count alternative
    05B8 1464 Address      4 LABFIRST       Address of first LABSECT
    05BC 1468 Signed       2 LABNUM         Number of LABSECTs
    05BE 1470 Bitstring    1 NUCSIMFG       OS simulation flags
              1... ....      NUC1OSAC       X'80' 1st O/S disk being accessed
              .1.. ....      NUC1ACER       X'40' 1st O/S disk access error
              ..1. ....      NUCTVIOF       X'20' SET TVICALL OFF
              ...1 ....      NUCTVISL       X'10' SET TVICALL SL
              .... 1...      NUCTNEVR       X'08' SET TAPENEVR 1-OFF 0-ON
              .... .1..      NUCTCSLO       X'04' SET TAPECSL OFF
              .... ..1.      NUCFPLCA       X'02' Pipes intercepting command
                                            output
              .... ...1      NUC5BE01       X'01' Reserved for future IBM use
    05BF 1471 Bitstring    1 NUC5BF         Reserved for future IBM use
    05C0 1472 Dbl-Word     8 FCBTAB (0)     FCB chain anchor
    05C0 1472 Address      4 FCBFIRST       Address of first FCB
    05C4 1476 Signed       2 FCBNUM         Number of FCBs in chain
    05C6 1478 Bitstring    1 *              RESERVED FOR WPL
    05C7 1479 Bitstring    1 OSSFLAGS       OS simulation flags
              1... ....      COMPSWT        X'80' Compiler switch
              .1.. ....      OSSMNU         X'40' DMSSMN unconditional flag
              ..1. ....      OSRESET        X'20'
              ...1 ....      OSWAIT         X'10' Used by OS-WAIT and
                                            CMS-WAITECB
              .... 1...      DYLD           X'08' Dynamic loading in process
              .... .1..      DYLIBO         X'04' Omit dynamic library scan
              .... ..1.      DYLIBNOW       X'02' Dynamic library scan
              .... ...1      DYMBRNM        X'01' Linked via member name
    05C8 1480 Address      4 ATLBMODL       Address of tape label processor
    05CC 1484 Address      4 LINKLAST       Address of last OS linkage block
    05D0 1488 Address      4 LINKSTRT       Address of entry point of last
                                            module
    05D4 1492 Address      4 TAXEADDR       Terminal attention exit element
                                            address
    05D8 1496 Address      4 ATSOCPPL       Address of tmp plist for TSO
                                            programs
    05DC 1500 Signed       4 DCBSAV         DCB restoration address Switches
    05E0 1504 Bitstring    1 OPTFLAGS       Option flags
              1... ....      NOIMPEX        X'80' No implied exec commands
              .1.. ....      NOIMPCP        X'40' No implied CP commands
              ..1. ....      NOSTDSYN       X'20' No standard synonyms
              ...1 ....      NOABBREV       X'10' No command abbreviations
              .... 1...      NOPAGREL       X'08' No automatic page release
              .... .1..      NOVMREAD       X'04' No automatic VM console
                                            read
              .... ..1.      NUC5E002       X'02' Reserved for future IBM use
              .... ...1      RDTDRCT        X'01' Console read Type=Direct
    05E1 1505 Bitstring    1 MISFLAGS       Miscellaneous flags
              1... ....      KXSWITCH       X'80' Kill execution switch
              .1.. ....      KOSWITCH       X'40' Kill tracing switch
              ..1. ....      RELPAGES       X'20' Release pages switch
              ...1 ....      GRAFDEV        X'10' Graphics console
              .... 1...      QSWITCH        X'08' Quiet SW for CRD
              .... .1..      NODDSK         X'04' Don't access D disk
              .... ..1.      NEGITS         X'02' Negative return code from
                                            DMSITS
              .... ...1      ATTNHIT        X'01' Attention posted
    05E2 1506 Bitstring    1 MSGFLAGS       Message flags
              1... ....      NOTYPOUT       X'80' No typing - set by exec
              .1.. ....      NOTYPING       X'40' No typing - set by HT
              ..1. ....      NORDYMSG       X'20' No ready message to be
                                            typed
              ...1 ....      NORDYTIM       X'10' No time on ready message
              .... 1...      REDERRID       X'08' Error code to be typed in
                                            red
              .... .1..      NOERRMSG       X'04' No error messages to be
                                            typed
              .... ..1.      NOERRTXT       X'02' No text on error messages
              .... ...1      SPECLF         X'01' Linefeed for typewriter CCW
    05E3 1507 Bitstring    1 DBGFLAGS       DEBUG flags
              1... ....      DBGEXEC        X'80' DEBUG executing
              .1.. ....      DBGPGMCK       X'40' DEBUG entered by a program
                                            check
              ..1. ....      DBGEXINT       X'20' DEGUB entered by an
                                            external interrupt
              ...1 ....      DBGABN         X'10' DEBUG entered from DMSABE
              .... 1...      DBGNSHR        X'08' No shared-segment present
              .... .1..      DBGSHR         X'04' Shared-segment present
              .... ..1.      DBGRECUR       X'02' Recursion flag
              .... ...1      ABNXTSW        X'01' User ABEND exit taken
    05E4 1508 Bitstring    1 MISFLAG2       More miscellaneous flags
              1... ....      EXRESET        X'80' OSRESET wanted 0=YES 1=NO
              .1.. ....      OSTYPLD        X'40' OS type load 1=OS type load
                                            0=Non-OS type load This is used
                                            by DMSSLN to indicate to DMSLDR
                                            that the text load is from an OS
                                            macro type load.
              ..1. ....      DONTHASH       X'20' Do not invoke R/W disk
                                            hashing
              ...1 ....      NUCTNABL       X'10' TOD clock accounting
                                            enabled
              .... 1...      NUCCPCMD       X'08' DMSINT check for CP command
              .... .1..      NUCLKED        X'04' LKED command issued
              .... ..1.      NUC4KKEY       X'02' 4K storage key facility
                                            exists
              .... ...1      NUCVECTR       X'01' 1=Vector facility is in use
    05E5 1509 Bitstring    1 NUCFLAG3       Even more miscellaneous flags
              1... ....      NUCPENDW       X'80' Pending write, update CMS
                                            window
              .1.. ....      NUCEXEC        X'40' DMSINT check for IMPLIED
                                            EXEC
              ..1. ....      NUCSERVE       X'20' Set server 0=Off 1=On
              ...1 ....      NUCSRVAB       X'10' Private server ABEND
                                            recursion
              .... 1...      NUCCOMDR       X'08' COMDIR status flag
              .... .1..      NUCURLBK       X'04' Current LINKBLK position 1=
                                            current LINKBLK on start of chain
                                            (use LINKSTART) 0= current
                                            LINKBLK on end of LINKBLK chain
                                            (LINKEND) This is used by DMSSTA
                                            to indicate which chain pointer
                                            for the LINKBLK chain points to
                                            the most recently added LINKBLK
              .... ..1.      NUC5E502       X'02' Reserved for future IBM use
              .... ...1      NUCIPLDN       X'01' IPL done (for private
                                            server)
    05E6 1510 Bitstring    1 EXECFLAG       Exec flags
              1... ....      EXECRUN        X'80' Exec command running
              .1.. ....      EXECSTOP       X'40' Halt interpreter recognized
              ..1. ....      EXECMASK       X'20' Halt interpreter enabled
              ...1 ....      EXECHALT       X'10' Halt interpreter has been
                                            issued
              .... 1...      EXECTRST       X'08' Trace can be reset by XEDIT
              .... .1..      NUCEXSST       X'04' Exec segment status 0=off
                                            1=on
              .... ..1.      EXECTMSK       X'02' Trace start enabled
              .... ...1      EXECTRAC       X'01' Exec trace requested
    05E7 1511 Bitstring    1 PROTFLAG       Storage protection flags
              1... ....      PRFPOFF        X'80' Storage protection is shut
                                            off
              .1.. ....      PRFTSYS        X'40' System routine in transient
                                            area
              ..1. ....      PRFUSYS        X'20' System routine in user area
    05E8 1512 Bitstring    1 TSOFLAGS       TSO flag byte
              1... ....      TSOATCNL       X'80' Read cancelled by attention
    05E9 1513 Bitstring    1 SUBFLAG        CMS subset flag-byte
              .... 1...      SUBREJ         X'08' Subset command reject
              .... .1..      SUBRTN         X'04' Subset-return
              .... ..1.      SUBINIT        X'02' Subset initialization
              .... ...1      SUBACT         X'01' Subset active
    05EA 1514 Bitstring    1 NUCMFLAG       Nucleus machine flag
              1... ....      NUCMXA         X'80' Virtual machine in XA mode
              .1.. ....      NUCMA4A8       X'40' CP supports Diag x'A4'/'A8'
              ..1. ....      NUCMEC         X'20' 370 machine with ECMODE on
              ...1 ....      NUCLA20        X'10' Default LOAD address is
                                            20000
              .... 1...      NUCM210        X'08' CP supports Diag x'210'
              .... .1..      NUCMXC         X'04' Virtual machine in XC mode
              .... ..1.      NUCM370        X'02' Virtual machine in 370 mode
              .... ...1      NUCMCDS        X'01' MCDS feature present in
                                            hardware
    05EB 1515 Bitstring    1 NUCTAMDE       AMODE of last transient
              1... ....      NUCTA31        X'80' AMODE of 31
              .1.. ....      NUCTA24        X'40' AMODE of 24
              11.. ....      NUCTAANY       NUCTA31+NUCTA24 AMODE of ANY
              .... ...1      NUCTA64        X'01' Reserved for CEC
    05EC 1516 Address      4 ASYSNAMS       Addr of SYSNAMES entries
    05F0 1520 Address      4 NUCLANGA       LANGBLK anchor
    05F4 1524 Address      4 ADMSLIO        Loader output routine
    05F8 1528 Address      4 VCFSTLKP       BALR equivalent of 'FSTLKP'
    05FC 1532 Address      4 VCFSTLKW       BALR equivalent of 'FSTLKW'
    0600 1536 Dbl-Word     8 SYSREF (0)     System routines and data areas
    0600 1536 Address      4 AFVS           File management work area
    0604 1540 Address      4 AOPSECT        I/O operations plist area
                                            ------> GPI
                                            <*****************************
                                            ****************-- ADEVTAB This
                                            address is used to find CON1ECB
                                            for the WAITECB macro. It points
                                            to device information for CMS.
                                            CON1ECB is located at offset X'C'
                                            into this device information.
                                            CON1ECB is the only field of the
                                            device information that is
                                            supported as a programming
                                            interface.
    0608 1544 Address      4 ADEVTAB        CMS device table ------> End
                                            GPI
                                            <*****************************
                                            *-------------
    060C 1548 Address      4 AFSTLKP        Find an FST for a file
    0610 1552 Address      4 AGETCLK        Get time from CP timer
    0614 1556 Address      4 AFSTLKW        Find a Read/Write FST
    0618 1560 Address      4 APIE           Ptr to active SPIE/ESPIE exit
    061C 1564 Address      4 AIADT          Ptr to ADT chain
    0620 1568 Address      4 AUSER          User defined storage area
    0624 1572 Address      4 ARDTK          Read a disk record
    0628 1576 Address      4 ASCANN         Convert command line to plists
    062C 1580 Address      4 ASSTAT         Ptr to the S-stat
    0630 1584 Address      4 ATABEND
    0634 1588 Address      4 ASUBSECT       Work area during SUBSET mode
    0638 1592 Address      4 ADMSSVT        Address of OS SVC simulation
    063C 1596 Address      4 AWRTK          Write a disk record
    0640 1600 Address      4 ASTRINIT       Ptr to OS storage reset
    0644 1604 Address      4 IADT           Ptr to ADT chain
    0648 1608 Address      4 NUC2SP         Ptr to syncpoint manager block
    064C 1612 Address      4 NUCTAPCB       Ptr to tape control block
    0650 1616 Address      4 ADMSPIOC       Put CCWs and data in user buffer
    0654 1620 Address      4 APGMSECT       Program interrupt work area
    0658 1624 Address      4 AIOSECT        I/O interrupt work area
    065C 1628 Address      4 ADMPEXEC       Dump from executing program
    0660 1632 Address      4 ADIOSECT       DMSDIO work area
    0664 1636 Address      4 AABNSVC        ABEND macro entry point
    0668 1640 Address      4 ADMSERL        Message work area
    066C 1644 Address      4 ADMSCRD        Make available read input line
    0670 1648 Address      4 ADMSFREB       DMSFREE/DMSFRET macro entry point
    0674 1652 Address      4 ASVCSECT       Maps fields for SVC interrupts
    0678 1656 Address      4 AADTLKP        Find an Active Disk Table
    067C 1660 Address      4 AUPUFD         Close all files / update disk
    0680 1664 Address      4 ASTATEXT
    0684 1668 Address      4 AOSRET         OS SVC routine return address
    0688 1672 Address      4 ACMSRET        CMS routine return address
    068C 1676 Address      4 ASCANO         Convert command line to plists
                                            ------> GPI
                                            <*****************************
                                            ****************-- AEXEC This is
                                            the address of DMSEXI, the CMS
                                            module that is the interface to
                                            the REXX, EXEC2 and EXEC
                                            interpreters. This address can be
                                            used by programs that need a
                                            minimum-overhead subcommand call
                                            mechanism.
    0690 1680 Address      4 AEXEC          Interface to EXEC handler
                                            ------> End GPI
                                            <*****************************
                                            *-------------
    0694 1684 Address      4 ASTART         Execute a group of programs
    0698 1688 Address      4 AADTLKW        Find a Read/Write ADT
    069C 1692 Address      4 AUSABRV        User-defined abbreviations
    06A0 1696 Address      4 AEXTSECT       External interrupt work area
    06A4 1700 Address      4 ASCBPTR        Ptr to 1st STAE control block
    06A8 1704 Address      4 ADMSROS        Address of DMSROS
    06AC 1708 Address      4 NUCASTQY       BALR entry for storage query
    06B0 1712 Address      4 AACTLKP        Creates, chains and manages AFTs
    06B4 1716 Address      4 AACTNXT        Find next AFT
    06B8 1720 Address      4 AACTFREE       Get a new AFT
    06BC 1724 Address      4 AACTFRET       Return an AFT
    06C0 1728 Address      4 AADTNXT        Find next ADT
    06C4 1732 Address      4 ATRKLKP        Allocate an 800-byte disk blk
    06C8 1736 Address      4 ATRKLKPX       Deallocate an 800-byte disk blk
    06CC 1740 Signed       4 NUC6CC         Reserved for future IBM use
    06D0 1744 Signed       4 NUC6D0         Reserved for future IBM use
    06D4 1748 Address      4 AERASE         Delete a file or group of files
    06D8 1752 Address      4 ATYPSRCH       Check for common filetype
    06DC 1756 Address      4 AUPDISK        Update file directory on disk
    06E0 1760 Address      4 AKILLEX        Halt execution (in DMSABE)
    06E4 1764 Address      4 ATFINIS        Temporarily close output files
    06E8 1768 Address      4 ARDBUF         Read one or more records
    06EC 1772 Address      4 AWRBUF         Write one or more records
    06F0 1776 Address      4 AFINIS         Close one or more files
    06F4 1780 Address      4 ASTATE         Look for a file on any disk
    06F8 1784 Address      4 ASTATEW        Look for a file on R/W disks
    06FC 1788 Address      4 APOINT         Set file read or write ptrs
    0700 1792 Dbl-Word     8 * (0)
    0700 1792 Address      4 NUCNADDR       Nucleus Address Table
    0704 1796 Signed       4 NUCSVQ13       DMSSVQ R13 save area CMS file
                                            system routines will not allow a
                                            read operation into any address
                                            lower than NUCLOWAD (end of
                                            NUCON).
    0708 1800 Address      4 NUCLOWAD       Address of end of NUCON
    070C 1804 Address      4 ATEMPLIN       Command line translation area
    0710 1808 Address      4 NUCAMD80       Hex constant of 80000000
    0714 1812 Address      4 NUCAMD7F       Hex constant of 7777777F
    0718 1816 Address      4 NUCSTTMC       31-bit entry point for STATE
    071C 1820 Address      4 NUCSIMWK       Ptr to OS/MVS simulation ctl blk
    0720 1824 Address      4 NUCLDEND       Maximum load address
    0724 1828 Address      4 NUCLDBK        Anchor for LOAD process LDPBK
    0728 1832 Dbl-Word     8 NUCSVQPW       DMSSVQRX PSW save
    0730 1840 Bitstring    1 NUCLDPF        Contains text load process flags.
                                            Mapped by NLFLAG1 field in LDRST.
    0731 1841 Bitstring    1 NUCMODF        Contains flags associated with
                                            loading/generating module files
              1... ....      NUCMDMAP       X'80' Indicates the loader table
                                            has been replaced by the load of
                                            a module MAP
    0732 1842 Bitstring    1 NUCLDPG        Contains flags associated with
                                            the text load process which is
                                            mapped by NLFLAG2 field in LDRST
    0733 1843 Bitstring    1 NUC733         Reserved for future loader use
    0734 1844 Bitstring    2 NUCHSTR        Loader history records
    0736 1846 Bitstring    2 NUCRLDR        CONTAINS COUNT OF RLD RECORDS
    0738 1848 Address      4 NUCANC         Anchor routine address
    073C 1852 Address      4 NUCANCHR       Address of anchor block
    0740 1856 Dbl-Word     8 * (0)
    0740 1856 Character  255 CMNDLINE
    083F 2111 Bitstring    1 *
    0840 2112 Dbl-Word     8 * (0)
    0840 2112 Character    8 CMNDEXEC
    0848 2120 Character  536 CMNDLIST
    0A60 2656 Dbl-Word     8 * (0)
    0A60 2656 Character  320 CONSTACK
                 Save areas
    0BA0 2976 Signed       4 FREESAVE (16)
    0BE0 3040 Signed       4 BALRSAVE (16)
    0C20 3104 Signed       4 WAITSAVE (16)  VSAM and AMSERV control words:
    0C60 3168 Dbl-Word     8 * (0)          Percent of available user storage
                                            to reserve for GETVIS/FREEVIS use
                                            when running VSAM:
    0C60 3168 Signed       2 PCTVSAM        50 percent for CMS/VSAM use
    0C62 3170 Bitstring    1 NUCVSAM2       VSAM information flag
              1... ....      NUCNRST        X'80' AMSERV 'NORESET' option
                                            specified
    0C63 3171 Bitstring    1 NUCGEXIT       REXX Global Exit execution flags
              1... ....      NUCGEEXC       X'80' An exit is executing
              .1.. ....      NUCGELST       X'40' Executing exit is last
              ..1. ....      NUCGENXT       X'20' Current points to next to
                                            invoke
              ...1 ....      NUCTEENT       X'10' Trace End immediate
                                            requested
              .... 1...      NUCC6308       X'08' Reserved for future IBM use
              .... .1..      NUCC6304       X'04' Reserved for future IBM use
              .... ..1.      NUCC6302       X'02' Reserved for future IBM use
              .... ...1      NUCC6301       X'01' Reserved for future IBM use
    0C64 3172 Address      4 NUCVIP         Address of VSAM interface
                                            Beginning and end of "IKQLAB"
                                            (when in storage):
    0C68 3176 Address      4 ADIKQLAB       Set to A(IKQLAB) when in storage
    0C6C 3180 Address      4 NDIKQLAB       Set to end of IKQLAB when in
                                            storage
    0C70 3184 Address      4 ALOKTB         LOCK/UNLOCK resource table
    0C74 3188 Address      4 ADMSVIB        Addr of VSAM interface bootstrap
    0C78 3192 Address      4 AVIPBLK        Address of DMSVIP 4K block
    0C7C 3196 Bitstring    1 VSAMFLG1       VSAM information flag
              1... ....      VSAMRUN        X'80' VSAM system loaded
              .1.. ....      VSJOBCAT       X'40' VSAM job catalog active
              ..1. ....      VIPINIT        X'20' DMSVIP has been initialized
              ...1 ....      VSAMSERV       X'10' CMS/AMS system loaded
                                            (AMSERV running)
              .... 1...      VIPSOP         X'08' OS interface SVC 2 call
              .... .1..      VIPTCLOS       X'04' OS TCLOSE call
              .... ..1.      VSAMSOS        X'02' OS AMSERV/CATCHECK running
              .... ...1      VSRACTIV       X'01' DMSVSR (VSAM reset) active
    0C7D 3197 Bitstring    1 NUCC7D         Reserved for future IBM use
    0C7E 3198 Bitstring    1 NUCC7E         Reserved for future IBM use
    0C7F 3199 Bitstring    1 NUCC7F         Reserved for future IBM use
    0C80 3200 Address      4 AVSAMSYS       Addr of VSAM saved system
    0C84 3204 Address      4 AAMSSYS        Addr of CMSAMS saved system
    0C88 3208 Address      4 AVSREOJ        DMSVSR entry point from VSAM
                                            $$BACLOS
    0C8C 3212 Address      4 AVSRWORK       Addr of DMSVSR workarea
    0C90 3216 Address      4 ACBLIST        ACB list bulit by OPEN/CLOSE
    0C94 3220 Address      4 NUCASYID       A(DIAG X'00' response)
    0C98 3224 Address      4 AABWSECT       Pointer for IPCS
    0C9C 3228 Address      4 ADMSZIT        Pointer for IPCS
    0CA0 3232 Dbl-Word     8 * (0)
                 Secondary address table
    0CA0 3232 Address      4 ADMSTRKA       EDF disk block allocate
    0CA4 3236 Address      4 ADMSTRKM       EDF disk block mark function
    0CA8 3240 Address      4 ADMSTRKD       EDF disk block deallocate
    0CAC 3244 Address      4 ADMSALU        Addr of RELEASE subroutine
    0CB0 3248 Address      4 ASORTFST       Addr of SORT FST subroutine
    0CB4 3252 Address      4 ADEVSUP        CP to OS dev type conv table
    0CB8 3256 Address      4 ADEVIND        Dev const table index
    0CBC 3260 Address      4 ATBLIND        Dev constants table
    0CC0 3264 Address      4 ABLKIND        Dev blksize index
    0CC4 3268 Address      4 ALABELRD       Addr of label read routine
    0CC8 3272 Address      4 ALABELWR       Addr of label write routine
    0CCC 3276 Address      4 ADMSLADN       LOCATE/ADD requested ADT
    0CD0 3280 Address      4 ADMSBLKR       EDF block read routine
    0CD4 3284 Address      4 ADMSBLKW       EDF block write routine
    0CD8 3288 Address      4 AABBREV        Abbrev resolver in DMSINA
    0CDC 3292 Address      4 ADEVSUP2       Device support table for FBA
    0CE0 3296 Address      4 AESTATE        Extended plist state
    0CE4 3300 Address      4 AESTATEW       Extended plist state for R/W
    0CE8 3304 Address      4 AEPOINT        Extended plist point
    0CEC 3308 Address      4 ATRUNC         File truncate function
    0CF0 3312 Signed       4 ABAMSYS        Pointer to CMSBAM DCSS
    0CF4 3316 Address      4 NUCSCBLK       SCBLOCK chain anchor
    0CF8 3320 Bitstring    1 BAMFLAGS       CMSBAM shared segment flags
              1... ....      DOSBAM         X'80' FB-512 support available
    0CF9 3321 Bitstring    1 NUCOSFLG       OS loader support flag
              1... ....      NUCOSRUN       X'80' OSRUN command issued
              .1.. ....      NUCSYSDF       X'40' $SYSLIB defined by LDR
                                            suprt
              ..1. ....      NUCGLOBL       X'20' GLOBAL done by OSRUN
              ...1 ....      NUCOSRLD       X'10' Member loaded for OSRUN
    0CFA 3322 Bitstring    1 NUCCFA         Reserved for future IBM use
    0CFB 3323 Bitstring    1 NUCCFB         Reserved for future IBM use
    0CFC 3324 Address      4 AHASHMNT       Addr of hash table maint routine
    0D00 3328 Address      4 NUCLRIWA       DMSLRI Work Area
    0D04 3332 Address      4 ASSTATX        Addr of shared copy of SSTAT
    0D08 3336 Address      4 ASSTATZ        Addr of dummy 2nd SSTAT hblk
    0D0C 3340 Address      4 AYSTATX        Addr of shared copy of YSTAT
    0D10 3344 Address      4 AYSTATZ        Addr of dummy 2nd YSTAT hblk
    0D14 3348 Address      4 ADMSIOW        CPU in wait state until finish
    0D18 3352 Address      4 ADBGSECT       DEBUG workarea
    0D1C 3356 Address      4 ADMSABW        ABEND work area
    0D20 3360 Address      4 NUCERO         Error message routine
    0D20 3360 Address      4 ADMSERR        Old name for NUCERO
    0D24 3364 Address      4 ADMSCWT        Calling program wait for I/O
    0D28 3368 Address      4 ADMSCWR        Write output to console
    0D2C 3372 Address      4 ADMSIOWR       Wait until I/O complete
    0D30 3376 Address      4 ADMSITI        Handle all I/O interruptions
    0D34 3380 Address      4 NUCABEND       Main ABEND entry point
    0D34 3380 Address      4 ADMSABN        Old name for NUCABEND
    0D38 3384 Address      4 AABNGO         Special ABEND entry
    0D3C 3388 Address      4 ALADAD         Auxiliary directory processing
    0D40 3392 Address      4 ACITDB         Clear read and write stacks
    0D44 3396 Address      4 ADMSITSR       SVC handler ABEND recovery
    0D48 3400 Address      4 ADMSFRES       NOP entry point
    0D4C 3404 Address      4 ASTGSB         Call STRINIT from nucleus
    0D50 3408 Address      4 AINTAB         ABEND entry point for DMSINT
    0D54 3412 Address      4 ADMSCAT        Stack a line of input
    0D58 3416 Address      4 ADMSCPF        Pass virtual console function
    0D5C 3420 Address      4 AEXCAB         Address of exec ABEND rtn
    0D60 3424 Address      4 NUCFSTLN       First line in program stack
    0D64 3428 Address      4 NUCLSTLN       Last line in program stack
    0D68 3432 Address      4 NUCNLSTK       Number of lines in prog. stack
    0D6C 3436 Address      4 NUCNBSTK       Number of program stack
    0D70 3440 Character    8 NUCTIEIN       Listing tiein field
    0D78 3448 Address      4 NUCAFCHS       Addr of OS fetch work area
    0D7C 3452 Signed       4 NUCCBLKS       Ptr to mods loaded by DMSLOS
    0D80 3456 Address      4 NUCSFSCB       Ptr to SFS control block
    0D84 3460 Address      4 NUCSDSGB       Ptr to SDS global ctl block
    0D88 3464 Signed       4 NUCD88         Reserved for future IBM use
    0D8C 3468 Address      4 NUCAEXR        Pointer to DMSEXR for EXT/REP
    0D90 3472 Address      4 NUCOPNMC       Ptr to FSOPEN routine
    0D94 3476 Address      4 NUCAPARL       Ptr to parser storage release
    0D98 3480 Address      4 NUCCDCBA       Ptr to Communication Directory
                                            Control Block
    0D9C 3484 Address      4 NUCCWR13       DMSCWR R13 save
    0DA0 3488 Address      4 NUCFNSMC       Ptr to FSCLOSE routine
    0DA4 3492 Signed       4 NUCAXLOC       Address of Xedit Locked chain
    0DA8 3496 Address      4 NUCCSLVT       Ptr to error routine initially
                                            Ptr to CSL 1st level vect table
                                            after CSL initialization This
                                            field may be modified as new 1st
                                            level tables are needed (i.e.,
                                            for TRACE, etc.)
    0DAC 3500 Address      4 NUCCSLV2       Ptr to CSL direct call routing
                                            routine. routine routes direct
                                            CSL routine calls to proper
                                            storage location.
    0DB0 3504 Signed       4 NUCCSLFE       2 fullword bitmap for track-
    0DB4 3508 Signed       4 *              ing front-ended CSL routines
    0DB8 3512 Signed       4 NUCDB8         Reserved for future IBM use
    0DBC 3516 Signed       4 NUCDBC         Reserved for future IBM use
    0DC0 3520 Address      4 NUCARELM       Pointer to CMSREL message
    0DC4 3524 Address      4 NUCLDMOD       Branch entry to LOADMOD
    0DC8 3528 Signed       4 NUCLODSV       Save area for LOADLIB totals
    0DCC 3532 Address      4 NUCWRKBK       Address of WRKBK chain
    0DD0 3536 Address      4 NUCCSLBK       Address of CSL Block
    0DD4 3540 Address      4 NUCEXREP       Address for Extract/Replace
    0DD8 3544 Address      4 NUCDCSCB       Pointer to the first DCSCB in the
                                            chain
    0DDC 3548 Address      4 NUCSVQOF       Address of PL/AS overflow rtn
    0DE0 3552 Address      4 NUCCWA         System Stack Storage Control Blk
    0DE4 3556 Address      4 NUCPHI         Start of high part of nucleus
    0DE8 3560 Address      4 NUCCHI         End of high part of nucleus
    0DEC 3564 Address      4 NUCAPIO        Printer I/O routine
    0DF0 3568 Address      4 ATCBPTR        DOS TCB address
    0DF4 3572 Address      4 AGAMSEG        GAM/SP anchor blk address
    0DF8 3576 Address      4 NUCALPHA       Start of CMS shared nucleus
    0DFC 3580 Address      4 NUCSIGMA       Start of S- and Y-stat storage
    0E00 3584 Address      4 NUCOMEGA       End of CMS shared nucleus
    0E04 3588 Address      4 NUCNLTRT       Address of national lang TRTBL
    0E08 3592 Dbl-Word     8 NUCPLIST (0)   Untokenized plist
    0E08 3592 Address      4 NUCPLCMD       Address of command token
    0E0C 3596 Address      4 NUCPLBEG       Addr of start of arg string
    0E10 3600 Address      4 NUCPLEND       Addr of end of arg string
    0E14 3604 Address      4 NUCPLFID       Addr of fn ft fm identifier
              NUCPLFID       NUCPLSWT       NUCPLFID 1-byte switch used in
                                            DMSSCN
    0E18 3608 Address      4 NUCHSHTB       Hash table management
    0E1C 3612 Signed       4 NUCPATHF       Anchor for CONSOLE path table
    0E20 3616 Signed       4 NUCDEVF        . and CONSOLE device table
    0E24 3620 Signed       4 NUCSMBLK       Windowing master control block
    0E28 3624 Address      4 NUCSZABV       Size of area above nuc. freted
    0E2C 3628 Address      4 NUCADFNC       Addr of nucleus function table
    0E30 3632 Signed       4 NUCLDR0S       Save R0 in DMSLDR (new plist)
    0E34 3636 Address      4 NUCUPPER       Uppercase translate table
    0E38 3640 Address      4 NUCERT         DMSERT work area address
    0E3C 3644 Address      4 NUCXCBLK       Anchor for nuc extension chain
                                            ------> GPI
                                            <*****************************
                                            ****************-- NUCXFRES This
                                            is the cumulative amount of
                                            TYPE=NUCLEUS free storage which
                                            will be retained by nucleus
                                            extensions through an ABEND. This
                                            does not include storage
                                            accounted for in SCBLOCKS in the
                                            NUCXCBLK chain. This field is
                                            used by DMSABE when performing
                                            abend recovery.
    0E40 3648 Signed       4 NUCXFRES       ------> End GPI
                                            <*****************************
                                            *-------------
    0E44 3652 Address      4 NUCXCBEE       SCBLOCK free list anchor
    0E48 3656 Signed       4 NUCUSER1       FW for exclusive use of users
    0E4C 3660 Signed       4 NUCUSER2       FW for exclusive use of users
    0E50 3664 Signed       4 NUCUSER3       FW for exclusive use of users
    0E54 3668 Signed       4 NUCUSER4       FW for exclusive use of users
                                            ------> GPI
                                            <*****************************
                                            ****************-- USERLVL
                                            USERLVL is reserved for use by
                                            the user. It's contents are
                                            returned in R0 after QUERY
                                            CMSLEVEL is issued.
    0E58 3672 Signed       4 USERLVL        ------> End GPI
                                            <*****************************
                                            *-------------
                 The following 2 full words are initialized in DMSINQ.
                 The following 4 bytes are reserved for IBM use only.
                 They contain information relating to the level
                 of CMS being used.  They are returned in R1 after
                 QUERY CMSLEVEL is issued.
    0E5C 3676 Bitstring    1 CMSLVL         Reserved for future use
    0E5D 3677 Bitstring    1 CMSPROG        Unique program product id defined
                                            in CMSLEVEL macro
    0E5E 3678 Signed       2 CMSSERV        CMS service level in binary
                 ACMSLVLM is reserved for IBM use only.  It contains
                 a pointer to the message QUERY CMSLEVEL issues.
    0E60 3680 Address      4 ACMSLVLM
    0E64 3684 Address      4 AIUCVTAB       Addr. of IUCV table
    0E68 3688 Signed       4 NUCXEND        Counter of End-of-command nucleus
                                            extentions
    0E6C 3692 Signed       4 ABNXTPTR       ABEND exit anchor
    0E70 3696 Address      4 ADMSABXR       ABNEXIT reset entry
    0E74 3700 Address      4 AIMMTABL       Addr of immediate command command
                                            work area
    0E78 3704 Signed       2 IMESCAPE       Immediate command escape char
                                            information
              1... ....      IMACTIVE       X'80' Immediate command escape
                                            char active
              00000E79       IMCHAR         IMESCAPE+1 Immediate command
                                            escape char
    0E7A 3706 Character    1 NUCEXSMD       Exec segment access mode
    0E7B 3707 Signed       1 NUCQEFLC       CMSLEVEL returned by DMSQEFL
    0E7C 3708 Address      4 SVCWKADR       Addr of DMSDOS SVC workarea
    0E80 3712 Address      4 ADMSCSF        Addr of command search function
    0E84 3716 Signed       4 NUCEXIS        Pointer to EXISBLK of most
                                            recently referenced EXEC In
                                            Storage-- 0 if this exec has been
                                            dropped from storage. Fields for
                                            preserving the relocation
                                            information from the LOAD/GENMOD
                                            process
    0E88 3720 Address      4 RLDDATA        Address of the buffer that is
                                            used to save RLD information from
                                            the LOAD/GENMOD process.
              00002000       RLDDWSZ        8192 Size of the RLDDATA buffer
                                            in doublewords.
    0E8C 3724 Address      4 RLDPOINT       Pointer to current item in the
                                            RLDDATA buffer
    0E90 3728 Address      4 ADMSEXQ        BALR entry point for DMSEXQ
    0E94 3732 Signed       4 MISCECB        MISC. use ECB
    0E98 3736 Dbl-Word     8 NUCTODCA (2)   TOD clock accounting area
    0EA8 3752 Character    5 NUCLANGC       Current language
    0EAD 3757 Character    1 NUCNLLID       National language level id
    0EAE 3758 Bitstring    1 NUCDBCS        SET DBCS flag
              1... ....      NUCDBSYS       X'80' SET DBCS SYSTEM
              .1.. ....      NUCDBON        X'40' SET DBCS ON|OFF
    0EAF 3759 Bitstring    1 NUCEAF         Reserved for future IBM use
    0EB0 3760 Address      4 NUCLANGD       Default language LANGBLK ptr
    0EB4 3764 Address      4 NUCEXSAD       Address of exec segment
          Fields used by the GLOBAL command to maintain library
          lists for MACLIBs, LOADLIBs, DOSLIBs, and TXTLIBs.
          The following fields point to the name lists used by GLOBAL.
    0EB8 3768 Address      4 NUCMLNAM       MACLIB name list address
    0EBC 3772 Address      4 NUCLLNAM       LOADLIB name list address
    0EC0 3776 Address      4 NUCDLNAM       DOSLIB name list address
    0EC4 3780 Address      4 NUCTLNAM       TXTLIB name list address
          The following fields point to the lists of directory
           pointers used by GLOBAL.
    0EC8 3784 Address      4 NUCMLDIR       MACLIB directory list address
    0ECC 3788 Address      4 NUCLLDIR       LOADLIB directory list address
    0ED0 3792 Address      4 NUCDLDIR       DOSLIB directory list address
    0ED4 3796 Signed       4 NUCED4         Reserved for future IBM use
          The following fields contain the size (in doublewords) of the
           free areas obtained by GLOBAL to keep the name lists and the
           directory pointer lists.
    0ED8 3800 Signed       4 NUCMLSIZ       MACLIB free storage size
    0EDC 3804 Signed       4 NUCLLSIZ       LOADLIB free storage size
    0EE0 3808 Signed       4 NUCDLSIZ       DOSLIB free storage size
    0EE4 3812 Signed       4 NUCTLSIZ       TXTLIB free storage size
          The following fields contain the number of GLOBALed libraries
    0EE8 3816 Signed       2 NUCMLNUM       Number of GLOBALed MACLIBS
    0EEA 3818 Signed       2 NUCLLNUM       Number of GLOBALed LOADLIBS
    0EEC 3820 Signed       2 NUCDLNUM       Number of GLOBALed DOSLIBS
    0EEE 3822 Signed       2 NUCTLNUM       Number of GLOBALed TXTLIBS
            Fields for preserving the history information
            from the LOAD/INCLUDE/GENMOD process
    0EF0 3824 Address      4 NUCHSTDA       Address of the buffer that is
                                            used to save history information
                                            from the LOAD/INCLUDE/GENMOD
                                            process.
              00001FFE       NUCHSTSZ       8190 Size of the history buffer
                                            (NUCHSTDA) in doublewords.
    0EF4 3828 Address      4 NUCHSTPO       Pointer to the next available
                                            space in the history buffer
                                            (NUCHSTDA).
    0EF8 3832 Address      4 NUCLANSS       Current language DCSS address
          The following field is used for internal queue management.
    0EFC 3836 Address      4 NUCSCRQA       Anchor for Queue Manager
          The following fields are used for internal storage pools.
    0F00 3840 Address      4 NUCSMSTA       Queue Mgr message blocks
    0F04 3844 Address      4 NUCSMSTB       Queue Mgr control blocks
    0F08 3848 Address      4 NUCSMSTC       Window/Vscreen control blocks
          V-cons for fullscreen CMS attn-hit & write-pending routines.
    0F0C 3852 Address      4 NUCWEXWR       DMSWEXWR - fullscreen refresh
    0F10 3856 Address      4 NUCWEXRD       DMSWEXRD - fullscreen attn
    0F14 3860 Address      4 NUCAPAR        Address of command parser
    0F18 3864 Address      4 NUCCIOBF       Addr of I/O buffer for DMSCIO
    0F1C 3868 Address      4 NUCASTTV       Addr of VALIDATE routine
    0F20 3872 Address      4 NUCAXADT       Addr of ADT index
    0F24 3876 Address      4 NUCALADR       Addr of ADT release routine
    0F28 3880 Signed       4 NUCGETHI       Highest value of MAINHIGH
    0F2C 3884 Signed       4 NUCF2C         Reserved for future IBM use
    0F30 3888 Address      4 NUCCSFFN       High-order byte indicator and
                                            FILENAME address
    0F34 3892 Address      4 NUCADIE        CMS termination address
    0F38 3896 Character    8 NUCINSTS       ' Installation segment name
          Amount of system storage, in doublewords, allocated for the
          Window Manager storage pool and pending messages enqueued.
          These values are used to reconcile system storage during
          abend recovery.
    0F40 3904 Signed       4 NUCSMPST       Storage pool storage allocated
    0F44 3908 Signed       4 NUCSMQST       Pending messages enqueued
    0F48 3912 Address      4 NUCWVTIX       Addr. of Vscreen WAIT routine
    0F4C 3916 Address      4 NUCWVXPI       WRITE Vscreen pgm. interface
    0F50 3920 Address      4 NUCWMX         XEDIT interface for windowing
    0F54 3924 Address      4 NUCDSXR        Data Space Exception Exit Addr
    0F58 3928 Address      4 NUCMCXR        Machine Check Exit Addr
    0F5C 3932 Address      4 NUCSPCBK       Anchor for data space structures
    0F60 3936 Address      4 NUCMGM         Address of CMS message module
    0F64 3940 Character    8 NUCFMPFN       Fullmap file name
    0F6C 3948 Address      4 NUCDIAB        REXX I/O support anchor
    0F70 3952 Signed       4 NUCRXSOK       RXSOCKET debug ptr
    0F74 3956 Signed       4 NUCF74         Reserved for future IBM use
    0F78 3960 Signed       4 NUCF78         Reserved for future IBM use
    0F7C 3964 Signed       4 NUCF7C         Reserved for future IBM use
    0F80 3968 Address      4 NUCMCACH       Pointer for message cache
    0F84 3972 Signed       4 TIMRSAVE       Timer Save Area
    0F88 3976 Address      4 NUCVMGUI       VM GUI Global Work Area Address
    0F8C 3980 Address      4 NUCRXWK        REXX Global Work Area Address
    0F90 3984 Signed       4 NUCCSLS0       Reg save area for CSL Direct call
    0F94 3988 Signed       4 NUCCSLS1       Reg save area for CSL Direct call
    0F98 3992 Signed       4 NUCCSLS2       Reg save area for CSL Direct call
    0F9C 3996 Signed       4 NUCCSLS3       Reg save area for CSL Direct call
    0FA0 4000 Signed       4 NUCCSLS4       Reg save area for CSL Direct call
    0FA4 4004 Signed       4 NUCCSLTB       Traceback address for Direct call
    0FA8 4008 Character    8 NUCFTYPE       Save area for FILETYPE
    0FB0 4016 Character    8 NUCMTSEG       ' Name of VMMTLIB segment
    0FB8 4024 Signed       4 NUCFB8         Reserved for future IBM use
    0FBC 4028 Signed       4 NUCFBC         Reserved for future IBM use
    0FC0 4032 Signed       4 NUCFC0         Reserved for future IBM use
    0FC4 4036 Address      4 OSTXTBUF       The size of the buffer in storage
                                            to use before OSLOADing TEXT
                                            Initialized to X'50000'
    0FC8 4040 Address      4 NUCWDBA        CMS defaul debugger
    0FCC 4044 Signed       4 NUCFCC         BFS FSSM Anchor
    0FD0 4048 Signed       4 NUCFD0         Reserved for future IBM use
    0FD4 4052 Signed       4 NUCFD4         Reserved for future IBM use
    0FD8 4056 Signed       4 NUCFD8         Reserved for future IBM use
    0FDC 4060 Signed       4 NUCFDC         Reserved for future IBM use
    0FE0 4064 Signed       4 NUCFE0         Reserved for future IBM use
    0FE4 4068 Signed       4 NUCFE4         Reserved for future IBM use
    0FE8 4072 Signed       4 NUCFE8         Reserved for future IBM use
    0FEC 4076 Signed       4 NUCFEC         Reserved for future IBM use
    0FF0 4080 Signed       4 NUCFF0         Reserved for future IBM use
    0FF4 4084 Signed       4 NUCFF4         Reserved for future IBM use
    0FF8 4088 Signed       4 NUCFF8         Reserved for future IBM use
    0FFC 4092 Signed       4 NUCFFC         Reserved for future IBM use
    1000 4096 Dbl-Word     8 * (0)          Align end of NUCON
              00001000       NUCONLEN       *-NUCON Length of NUCON in bytes

#### NUCON Storage Layout

    *** NUCON - Nucleus Constant Area
    *
    *     +-------------------------------------------------------+
    *   0 |                        IPLPSW                         |
    *     +-------------------------------------------------------+
    *   8 |                       IPLCCW1                         |
    *     +-------------------------------------------------------+
    *  10 |                       IPLCCW2                         |
    *     +-------------------------------------------------------+
    *  18
    *
    *** NUCON - Nucleus Constant Area

    *** Overlay for IPLPSW in NUCON
    *
    *     +-------------------------------------------------------+
    *   0 |                       RSTNPSW                         |
    *     +-------------------------------------------------------+
    *   8 |                       RSTOPSW                         |
    *     +---------------------------+---------------------------+
    *  10 |         ACMSCVT           |         ASYSREF           |
    *     +---------------------------+---------------------------+
    *  18 |                       EXTOPSW                         |
    *     +-------------------------------------------------------+
    *  20 |                       SVCOPSW                         |
    *     +-------------------------------------------------------+
    *  28 |                       PGMOPSW                         |
    *     +-------------------------------------------------------+
    *  30 |                       MCKOPSW                         |
    *     +-------------------------------------------------------+
    *  38 |                        IOOPSW                         |
    *     +-------------------------------------------------------+
    *  40 |                         CSW                           |
    *     +---------------------------+---------------------------+
    *  48 |           CAW             |         NUCRSV1           |
    *     +---------------------------+---------------------------+
    *  50 |          TIMER            |         NUCRSV2           |
    *     +---------------------------+---------------------------+
    *  58 |                       EXTNPSW                         |
    *     +-------------------------------------------------------+
    *  60 |                       SVCNPSW                         |
    *     +-------------------------------------------------------+
    *  68 |                       PGMNPSW                         |
    *     +-------------------------------------------------------+
    *  70 |                       MCKNPSW                         |
    *     +-------------------------------------------------------+
    *  78 |                        IONPSW                         |
    *     +-------------------------------------------------------+
    *  80 |                                                       |
    *     =                        CPULOG                         =
    *     |                                                       |
    *     +-------------------------------------------------------+
    * 200
    *
    *** Overlay for IPLPSW in NUCON

    *** Overlay for CPULOG in NUCON
    *
    *     +---------------------------+-------------+-------------+
    *  80 |         NUCEPARM          |  NUCPUADR   |  NUCEXCDE   |
    *     +------+------+-------------+------+------+-------------+
    *  88 |:RSV3 |:SVILC|  NUCSVCN    |//////|:XAILC|  NUCPGCDE   |
    *     +------+------+-------------+------+------+-------------+
    *  90 |///////////////////////////|  MONCLASS   |  PERCODE    |
    *     +---------------------------+-------------+-------------+
    *  98 |         PERADDR           |         MONCODE           |
    *     +------+--------------------+---------------------------+
    *  A0 |:EXAID|////////////////////|///////////////////////////|
    *     +------+--------------------+---------------------------+
    *  A8 |         NUCTXCP           |///////////////////////////|
    *     +---------------------------+///////////////////////////|
    *     |///////////////////////////////////////////////////////|
    *     +-------------+-------------+---------------------------+
    *  B8 |/////////////|  NUCIOADR   |         NUCINTP           |
    *     +-------------+-------------+---------------------------+
    *  C0 |///////////////////////////////////////////////////////|
    *     =///////////////////////////////////////////////////////=
    *     |///////////////////////////////////////////////////////|
    *     +-------------------------------------------------------+
    *  D8 |                       NUCTIMR                         |
    *     +-------------------------------------------------------+
    *  E0 |                       NUCCLOK                         |
    *     +------+------+------+------+------+------+------+------+
    *  E8 |:MCIC0|:MCIC1|:MCIC2|:MCIC3|:MCIC4|:MCIC5|:MCIC6|:MCIC7|
    *     +------+------+------+------+------+------+------+------+
    *  F0 |///////////////////////////////////////////////////////|
    *     +---------------------------+---------------------------+
    *  F8 |          NUCFSA           |///////////////////////////|
    *     +---------------------------+---------------------------+
    * 100 |                       NUCASIT                         |
    *     +-------------------------------------------------------+
    * 108 |///////////////////////////////////////////////////////|
    *     =///////////////////////////////////////////////////////=
    *     |///////////////////////////////////////////////////////|
    *     +-------------------------------------------------------+
    * 120 |                                                       |
    *     =                       XCARLOG                         =
    *     |                                                       |
    *     +-------------------------------------------------------+
    * 160 |                                                       |
    *     =                        FPRLOG                         =
    *     |                                                       |
    *     +-------------------------------------------------------+
    * 180 |                                                       |
    *     =                        GPRLOG                         =
    *     |                                                       |
    *     +-------------------------------------------------------+
    * 1C0 |                                                       |
    *     =                        ECRLOG                         =
    *     |                                                       |
    *     +-------------------------------------------------------+
    * 200 |                                                       |
    *     =                       SYSTEMID                        =
    *     |                                                       |
    *     +-------------------------------------------------------+
    * 220 |                                                       |
    *     =                       INSTALID                        =
    *     |                                                       |
    *     +-------------------------------------------------------+
    * 260 |                       SYSNAME                         |
    *     +-------------+-------------+---------------------------+
    * 268 |  IPLADDR    |  SYSADDR    |          DEVICE           |
    *     +-------------+-------------+---------------------------+
    * 270 |  HLPADDR    |  NUCYADDR   |          FEIBM            |
    *     +-------------+-------------+                           |
    *     |                                                       |
    *     +-------------------------------------------------------+
    * 280 |                                                       |
    *     =                       DIAGTIME                        =
    *     |                                                       |
    *     +-------------------------------------------------------+
    * 298
    *
    *** Overlay for CPULOG in NUCON

    *** Overlay for DIAGTIME in NUCON
    *
    *     +-------------------------------------------------------+
    * 280 |                       CURRDATE                        |
    *     +-------------------------------------------------------+
    * 288 |                       CURRTIME                        |
    *     +---------------------------+---------------------------+
    * 290 |         CURRVIRT          |         CURRCPUT          |
    *     +---------------------------+---------------------------+
    * 298 |         LASTVIRT          |         LASTCPUT          |
    *     +---------------------------+---------------------------+
    * 2A0 |                       LASTCMND                        |
    *     +-------------------------------------------------------+
    * 2A8 |                       PREVCMND                        |
    *     +-------------------------------------------------------+
    * 2B0 |                       LASTEXEC                        |
    *     +-------------------------------------------------------+
    * 2B8 |                       PREVEXEC                        |
    *     +-------------------------------------------------------+
    * 2C0 |                       LASTLMOD                        |
    *     +-------------------------------------------------------+
    * 2C8 |                       LASTTMOD                        |
    *     +-------------------------------------------------------+
    * 2D0 |                       DATIPCMS                        |
    *     +-------------------------------------------------------+
    * 2D8 |                       CLKVALMD                        |
    *     +-------------------------------------------------------+
    * 2E0 |                       NUCENAWA                        |
    *     +---------------------------+------+------+------+------+
    * 2E8 |         NUCLDSET          |:CSLTM|:FSTM |:PRTM |NUC2EF|
    *     +---------------------------+------+------+------+------+
    * 2F0 |         NUCAFRSC          |         NUCAFRSD          |
    *     +---------------------------+---------------------------+
    * 2F8 |         NUCAFRSR          |          NUC2FC           |
    *     +---------------------------+---------------------------+
    * 300 |         NUCIDAL           |         NUCIDALL          |
    *     +---------------------------+---------------------------+
    * 308 |         NUCFSR14          |         NUCPRR14          |
    *     +---------------------------+-------------+-------------+
    * 310 |         NUCITEXC          |   NUC314    |  NUCTLANU   |
    *     +---------------------------+-------------+-------------+
    * 318 |         TXLIBSVA          |         NUCTLANA          |
    *     +---------------------------+---------------------------+
    * 320 |         NUCTLADI          |         NUCTLASI          |
    *     +---------------------------+---------------------------+
    * 328 |         NUCAFROC          |         NUCAFROU          |
    *     +---------------------------+---------------------------+
    * 330 |         NUCAFRRC          |         NUCAFRRU          |
    *     +---------------------------+---------------------------+
    * 338 |                       VMSIZEG                         |
    *     +---------------------------+---------------------------+
    * 340 |         NUCAMQVM          |         NUCMCKSA          |
    *     +---------------------------+---------------------------+
    * 348 |         TXLIBSV           |         MACLBSV           |
    *     +---------------------------+---------------------------+
    * 350 |         TOTLIBS           |         NUCTLDIR          |
    *     +---------------------------+---------------------------+
    * 358
    *
    *** Overlay for DIAGTIME in NUCON

    *** Overlay for NUCTLDIR in NUCON
    *
    *                                 +---------------------------+
    * 350 ...                     354 |         TXTDIRC           |
    *     +---------------------------+---------------------------+
    * 358 |         NUCLICMD          |         NUCTRBUF          |
    *     +---------------------------+---------------------------+
    * 360 |                                                       |
    *     =                       NUCITSSA                        =
    *     |                                                       |
    *     +---------------------------+---------------------------+
    * 3A0 |          GRS015           |         LOC0176           |
    *     +---------------------------+---------------------------+
    * 3A8 |         FIRSTDMP          |         LASTDMP           |
    *     +---------------------------+---------------------------+
    * 3B0 |          FRS06            |          DMPTIT           |
    *     +---------------------------+---------------------------+
    * 3B8 |         NUCSGIOP          |                           |
    *     +---------------------------+                           |
    * 3C0 |                                                       |
    *     =                       DMPTITLE                        =
    *     |                                                       |
    *     +---------------------------+------+------+-------------+
    * 440 |         GLBLTABL          |:TRFLG|:FLAGA|/////////////|
    *     +---------------------------+------+------+-------------+
    * 448 |         ERR$202           |/////////////|  CURRCENT   |
    *     +------+------+------+------+-------------+-------------+
    * 450 |:FLAGS|:FLAG2|:FLAG3|:FLAG4|         ABATPROC          |
    *     +------+------+------+------+---------------------------+
    * 458 |         ABATABND          |         ABATLIMT          |
    *     +---------------------------+---------------------------+
    * 460 |         AUSERRST          |         NUSERFWD          |
    *     +---------------------------+---------------------------+
    * 468 |         NUCRSV7           |         DOSLBSV           |
    *     +---------------------------+-------------+-------------+
    * 470 |         NUCROSAD          |  NUCROSDW   |   NUC476    |
    *     +---------------------------+-------------+-------------+
    * 478 |          NUCAVW           |         NUCMTAV           |
    *     +---------------------------+------+------+-------------+
    * 480 |         NUCAPLD           |:MTFL0|:MTFL1|  NUCBCPU    |
    *     +---------------------------+------+------+-------------+
    * 488 |         NUCAKGA           |         NUCOSMP           |
    *     +---------------------------+---------------------------+
    * 490 |         NUCOSPL           |         NUCOSPLL          |
    *     +---------------------------+---------------------------+
    * 498 |         NUCCELGT          |         NUCCELST          |
    *     +---------------------------+---------------------------+
    * 4A0 |         NUCMACLS          |         NUCCELSV          |
    *     +---------------------------+---------------------------+
    * 4A8 |         NUCPPID           |          NUC4AC           |
    *     +---------------------------+---------------------------+
    * 4B0 |         NUCTCBO           |         NUCTCBN           |
    *     +---------------------------+---------------------------+
    * 4B8 |          NUC4B8           |          NUC4BC           |
    *     +---------------------------+---------------------------+
    * 4C0 |          NUCRSK           |          NUC4C4           |
    *     +---------------------------+---------------------------+
    * 4C8 |          NUC4C8           |          NUC4CC           |
    *     +---------------------------+---------------------------+
    * 4D0 |          NUC4D0           |          NUC4D4           |
    *     +------+------+------+------+---------------------------+
    * 4D8 |:FLAGS|DOSRC |NUC4DA|NUC4DB|         ALTASAVE          |
    *     +------+------+------+------+---------------------------+
    * 4E0 |          ABGCOM           |         ASYSCOM           |
    *     +---------------------------+---------------------------+
    * 4E8 |         ADOSDCSS          |         SVC12SAV          |
    *     +---------------------------+-------------+-------------+
    * 4F0 |         DOSFIRST          |   DOSNUM    |  DOSKPART   |
    *     +---------------------------+-------------+-------------+
    * 4F8 |         APPSAVE           |         DOSTRANS          |
    *     +---------------------------+---------------------------+
    * 500 |         AALTCVT           |         DMNTECB           |
    *     +---------------------------+---------------------------+
    * 508 |          NUC508           |          NUC50C           |
    *     +---------------------------+---------------------------+
    * 510 |          NUC510           |          NUC514           |
    *     +---------------------------+---------------------------+
    * 518 |          NUC518           |          NUC51C           |
    *     +---------------------------+---------------------------+
    * 520 |         ANUCEND           |         AUSRAREA          |
    *     +---------------------------+-------------+-------------+
    * 528 |         CURRSAVE          |  CODE203    |   NUC52E    |
    *     +---------------------------+-------------+-------------+
    * 530 |         NUCFRWRK          |         VCADTLKP          |
    *     +---------------------------+---------------------------+
    * 538 |         VCADTNXT          |         VCADTLKW          |
    *     +---------------------------+---------------------------+
    * 540 |         CURRIOOP          |         PENDREAD          |
    *     +---------------------------+---------------------------+
    * 548 |         PENDWRIT          |         FSTFINRD          |
    *     +---------------------------+---------------------------+
    * 550 |         LSTFINRD          |         AINTRTBL          |
    *     +---------------------------+-------------+-------------+
    * 558 |         AOUTRTBL          |  NUMFINRD   |  NUMPNDWR   |
    *     +---------------------------+-------------+-------------+
    * 560 |          VMSIZE           |         ALDRTBLS          |
    *     +---------------------------+---------------------------+
    * 568 |         STRTADDR          |         FRSTLOC           |
    *     +---------------------------+---------------------------+
    * 570 |         LASTLOC           |          LOCCNT           |
    *     +---------------------------+---------------------------+
    * 578 |         LDRADDR           |         LDRRTCD           |
    *     +---------------------------+---------------------------+
    * 580 |                         PSW                           |
    *     +---------------------------+---------------------------+
    * 588 |         LDRFLAGS          |          PRHOLD           |
    *     +-------------+------+------+---------------------------+
    * 590 |   TBENT     |UNRES |:FLGS |           GET1            |
    *     +-------------+------+------+---------------------------+
    * 598 |                         DSYM                          |
    *     +---------------------------+------+--------------------+
    * 5A0 |           JSYM            |NXTSYM|////////////////////|
    *     +---------------------------+------+--------------------+
    * 5A8 |///////////////////////////|         ALIASENT          |
    *     +---------------------------+---------------------------+
    * 5B0 |         DYNAEND           |         NUCLCNTA          |
    *     +---------------------------+-------------+------+------+
    * 5B8 |         LABFIRST          |   LABNUM    |:SIMFG|NUC5BF|
    *     +---------------------------+-------------+------+------+
    * 5C0 |         FCBFIRST          |   FCBNUM    |//////|:FLAGS|
    *     +---------------------------+-------------+------+------+
    * 5C8 |         ATLBMODL          |         LINKLAST          |
    *     +---------------------------+---------------------------+
    * 5D0 |         LINKSTRT          |         TAXEADDR          |
    *     +---------------------------+---------------------------+
    * 5D8 |         ATSOCPPL          |          DCBSAV           |
    *     +------+------+------+------+------+------+------+------+
    * 5E0 |:FLAGS|:FLAGS|:FLAGS|:FLAGS|:FLAG2|:FLAG3|:CFLAG|:TFLAG|
    *     +------+------+------+------+------+------+------+------+
    * 5E8 |:FLAGS|:FLAG |:MFLAG|:TAMDE|         ASYSNAMS          |
    *     +------+------+------+------+---------------------------+
    * 5F0 |         NUCLANGA          |         ADMSLIO           |
    *     +---------------------------+---------------------------+
    * 5F8 |         VCFSTLKP          |         VCFSTLKW          |
    *     +---------------------------+---------------------------+
    * 600 |           AFVS            |         AOPSECT           |
    *     +---------------------------+---------------------------+
    * 608 |         ADEVTAB           |         AFSTLKP           |
    *     +---------------------------+---------------------------+
    * 610 |         AGETCLK           |         AFSTLKW           |
    *     +---------------------------+---------------------------+
    * 618 |           APIE            |          AIADT            |
    *     +---------------------------+---------------------------+
    * 620 |          AUSER            |          ARDTK            |
    *     +---------------------------+---------------------------+
    * 628 |          ASCANN           |          ASSTAT           |
    *     +---------------------------+---------------------------+
    * 630 |         ATABEND           |         ASUBSECT          |
    *     +---------------------------+---------------------------+
    * 638 |         ADMSSVT           |          AWRTK            |
    *     +---------------------------+---------------------------+
    * 640 |         ASTRINIT          |           IADT            |
    *     +---------------------------+---------------------------+
    * 648 |          NUC2SP           |         NUCTAPCB          |
    *     +---------------------------+---------------------------+
    * 650 |         ADMSPIOC          |         APGMSECT          |
    *     +---------------------------+---------------------------+
    * 658 |         AIOSECT           |         ADMPEXEC          |
    *     +---------------------------+---------------------------+
    * 660 |         ADIOSECT          |         AABNSVC           |
    *     +---------------------------+---------------------------+
    * 668 |         ADMSERL           |         ADMSCRD           |
    *     +---------------------------+---------------------------+
    * 670 |         ADMSFREB          |         ASVCSECT          |
    *     +---------------------------+---------------------------+
    * 678 |         AADTLKP           |          AUPUFD           |
    *     +---------------------------+---------------------------+
    * 680 |         ASTATEXT          |          AOSRET           |
    *     +---------------------------+---------------------------+
    * 688 |         ACMSRET           |          ASCANO           |
    *     +---------------------------+---------------------------+
    * 690 |          AEXEC            |          ASTART           |
    *     +---------------------------+---------------------------+
    * 698 |         AADTLKW           |         AUSABRV           |
    *     +---------------------------+---------------------------+
    * 6A0 |         AEXTSECT          |         ASCBPTR           |
    *     +---------------------------+---------------------------+
    * 6A8 |         ADMSROS           |         NUCASTQY          |
    *     +---------------------------+---------------------------+
    * 6B0 |         AACTLKP           |         AACTNXT           |
    *     +---------------------------+---------------------------+
    * 6B8 |         AACTFREE          |         AACTFRET          |
    *     +---------------------------+---------------------------+
    * 6C0 |         AADTNXT           |         ATRKLKP           |
    *     +---------------------------+---------------------------+
    * 6C8 |         ATRKLKPX          |          NUC6CC           |
    *     +---------------------------+---------------------------+
    * 6D0 |          NUC6D0           |          AERASE           |
    *     +---------------------------+---------------------------+
    * 6D8 |         ATYPSRCH          |         AUPDISK           |
    *     +---------------------------+---------------------------+
    * 6E0 |         AKILLEX           |         ATFINIS           |
    *     +---------------------------+---------------------------+
    * 6E8 |          ARDBUF           |          AWRBUF           |
    *     +---------------------------+---------------------------+
    * 6F0 |          AFINIS           |          ASTATE           |
    *     +---------------------------+---------------------------+
    * 6F8 |         ASTATEW           |          APOINT           |
    *     +---------------------------+---------------------------+
    * 700 |         NUCNADDR          |         NUCSVQ13          |
    *     +---------------------------+---------------------------+
    * 708 |         NUCLOWAD          |         ATEMPLIN          |
    *     +---------------------------+---------------------------+
    * 710 |         NUCAMD80          |         NUCAMD7F          |
    *     +---------------------------+---------------------------+
    * 718 |         NUCSTTMC          |         NUCSIMWK          |
    *     +---------------------------+---------------------------+
    * 720 |         NUCLDEND          |         NUCLDBK           |
    *     +---------------------------+---------------------------+
    * 728 |                       NUCSVQPW                        |
    *     +------+------+------+------+-------------+-------------+
    * 730 |:LDPF |:MODF |:LDPG |NUC733|  NUCHSTR    |  NUCRLDR    |
    *     +------+------+------+------+-------------+-------------+
    * 738 |          NUCANC           |         NUCANCHR          |
    *     +---------------------------+---------------------------+
    * 740 |                                                       |
    *     =                       CMNDLINE                        =
    *     |                                                +------+
    * 838 |                                                |//////|
    *     +------------------------------------------------+------+
    * 840 |                       CMNDEXEC                        |
    *     +-------------------------------------------------------+
    * 848 |                                                       |
    *     =                       CMNDLIST                        =
    *     |                                                       |
    *     +-------------------------------------------------------+
    * A60 |                                                       |
    *     =                       CONSTACK                        =
    *     |                                                       |
    *     +-------------------------------------------------------+
    * BA0 |                                                       |
    *     =                       FREESAVE                        =
    *     |                                                       |
    *     +-------------------------------------------------------+
    * BE0 |                                                       |
    *     =                       BALRSAVE                        =
    *     |                                                       |
    *     +-------------------------------------------------------+
    * C20 |                                                       |
    *     =                       WAITSAVE                        =
    *     |                                                       |
    *     +-------------+------+------+---------------------------+
    * C60 |  PCTVSAM    |:VSAM2|:GEXIT|          NUCVIP           |
    *     +-------------+------+------+---------------------------+
    * C68 |         ADIKQLAB          |         NDIKQLAB          |
    *     +---------------------------+---------------------------+
    * C70 |          ALOKTB           |         ADMSVIB           |
    *     +---------------------------+------+------+------+------+
    * C78 |         AVIPBLK           |:MFLG1|NUCC7D|NUCC7E|NUCC7F|
    *     +---------------------------+------+------+------+------+
    * C80 |         AVSAMSYS          |         AAMSSYS           |
    *     +---------------------------+---------------------------+
    * C88 |         AVSREOJ           |         AVSRWORK          |
    *     +---------------------------+---------------------------+
    * C90 |         ACBLIST           |         NUCASYID          |
    *     +---------------------------+---------------------------+
    * C98 |         AABWSECT          |         ADMSZIT           |
    *     +---------------------------+---------------------------+
    * CA0 |         ADMSTRKA          |         ADMSTRKM          |
    *     +---------------------------+---------------------------+
    * CA8 |         ADMSTRKD          |         ADMSALU           |
    *     +---------------------------+---------------------------+
    * CB0 |         ASORTFST          |         ADEVSUP           |
    *     +---------------------------+---------------------------+
    * CB8 |         ADEVIND           |         ATBLIND           |
    *     +---------------------------+---------------------------+
    * CC0 |         ABLKIND           |         ALABELRD          |
    *     +---------------------------+---------------------------+
    * CC8 |         ALABELWR          |         ADMSLADN          |
    *     +---------------------------+---------------------------+
    * CD0 |         ADMSBLKR          |         ADMSBLKW          |
    *     +---------------------------+---------------------------+
    * CD8 |         AABBREV           |         ADEVSUP2          |
    *     +---------------------------+---------------------------+
    * CE0 |         AESTATE           |         AESTATEW          |
    *     +---------------------------+---------------------------+
    * CE8 |         AEPOINT           |          ATRUNC           |
    *     +---------------------------+---------------------------+
    * CF0 |         ABAMSYS           |         NUCSCBLK          |
    *     +------+------+------+------+---------------------------+
    * CF8 |:FLAGS|:OSFLG|NUCCFA|NUCCFB|         AHASHMNT          |
    *     +------+------+------+------+---------------------------+
    * D00 |         NUCLRIWA          |         ASSTATX           |
    *     +---------------------------+---------------------------+
    * D08 |         ASSTATZ           |         AYSTATX           |
    *     +---------------------------+---------------------------+
    * D10 |         AYSTATZ           |         ADMSIOW           |
    *     +---------------------------+---------------------------+
    * D18 |         ADBGSECT          |         ADMSABW           |
    *     +---------------------------+---------------------------+
    * D20 |          NUCERO           | D24
    *     +---------------------------+
    *
    *** Overlay for NUCTLDIR in NUCON

    *** Overlay for NUCERO in NUCON
    *
    *     +---------------------------+---------------------------+
    * D20 |         ADMSERR           |         ADMSCWT           |
    *     +---------------------------+---------------------------+
    * D28 |         ADMSCWR           |         ADMSIOWR          |
    *     +---------------------------+---------------------------+
    * D30 |         ADMSITI           |         NUCABEND          |
    *     +---------------------------+---------------------------+
    * D38
    *
    *** Overlay for NUCERO in NUCON

    *** Overlay for NUCABEND in NUCON
    *
    *                                 +---------------------------+
    * D30 ...                     D34 |         ADMSABN           |
    *     +---------------------------+---------------------------+
    * D38 |          AABNGO           |          ALADAD           |
    *     +---------------------------+---------------------------+
    * D40 |          ACITDB           |         ADMSITSR          |
    *     +---------------------------+---------------------------+
    * D48 |         ADMSFRES          |          ASTGSB           |
    *     +---------------------------+---------------------------+
    * D50 |          AINTAB           |         ADMSCAT           |
    *     +---------------------------+---------------------------+
    * D58 |         ADMSCPF           |          AEXCAB           |
    *     +---------------------------+---------------------------+
    * D60 |         NUCFSTLN          |         NUCLSTLN          |
    *     +---------------------------+---------------------------+
    * D68 |         NUCNLSTK          |         NUCNBSTK          |
    *     +---------------------------+---------------------------+
    * D70 |                       NUCTIEIN                        |
    *     +---------------------------+---------------------------+
    * D78 |         NUCAFCHS          |         NUCCBLKS          |
    *     +---------------------------+---------------------------+
    * D80 |         NUCSFSCB          |         NUCSDSGB          |
    *     +---------------------------+---------------------------+
    * D88 |          NUCD88           |         NUCAEXR           |
    *     +---------------------------+---------------------------+
    * D90 |         NUCOPNMC          |         NUCAPARL          |
    *     +---------------------------+---------------------------+
    * D98 |         NUCCDCBA          |         NUCCWR13          |
    *     +---------------------------+---------------------------+
    * DA0 |         NUCFNSMC          |         NUCAXLOC          |
    *     +---------------------------+---------------------------+
    * DA8 |         NUCCSLVT          |         NUCCSLV2          |
    *     +---------------------------+---------------------------+
    * DB0 |         NUCCSLFE          |///////////////////////////|
    *     +---------------------------+---------------------------+
    * DB8 |          NUCDB8           |          NUCDBC           |
    *     +---------------------------+---------------------------+
    * DC0 |         NUCARELM          |         NUCLDMOD          |
    *     +---------------------------+---------------------------+
    * DC8 |         NUCLODSV          |         NUCWRKBK          |
    *     +---------------------------+---------------------------+
    * DD0 |         NUCCSLBK          |         NUCEXREP          |
    *     +---------------------------+---------------------------+
    * DD8 |         NUCDCSCB          |         NUCSVQOF          |
    *     +---------------------------+---------------------------+
    * DE0 |          NUCCWA           |          NUCPHI           |
    *     +---------------------------+---------------------------+
    * DE8 |          NUCCHI           |         NUCAPIO           |
    *     +---------------------------+---------------------------+
    * DF0 |         ATCBPTR           |         AGAMSEG           |
    *     +---------------------------+---------------------------+
    * DF8 |         NUCALPHA          |         NUCSIGMA          |
    *     +---------------------------+---------------------------+
    * E00 |         NUCOMEGA          |         NUCNLTRT          |
    *     +---------------------------+---------------------------+
    * E08 |         NUCPLCMD          |         NUCPLBEG          |
    *     +---------------------------+---------------------------+
    * E10 |         NUCPLEND          |         NUCPLFID          |
    *     +---------------------------+---------------------------+
    * E18 |         NUCHSHTB          |         NUCPATHF          |
    *     +---------------------------+---------------------------+
    * E20 |         NUCDEVF           |         NUCSMBLK          |
    *     +---------------------------+---------------------------+
    * E28 |         NUCSZABV          |         NUCADFNC          |
    *     +---------------------------+---------------------------+
    * E30 |         NUCLDR0S          |         NUCUPPER          |
    *     +---------------------------+---------------------------+
    * E38 |          NUCERT           |         NUCXCBLK          |
    *     +---------------------------+---------------------------+
    * E40 |         NUCXFRES          |         NUCXCBEE          |
    *     +---------------------------+---------------------------+
    * E48 |         NUCUSER1          |         NUCUSER2          |
    *     +---------------------------+---------------------------+
    * E50 |         NUCUSER3          |         NUCUSER4          |
    *     +---------------------------+------+------+-------------+
    * E58 |         USERLVL           |CMSLVL|:PROG |  CMSSERV    |
    *     +---------------------------+------+------+-------------+
    * E60 |         ACMSLVLM          |         AIUCVTAB          |
    *     +---------------------------+---------------------------+
    * E68 |         NUCXEND           |         ABNXTPTR          |
    *     +---------------------------+---------------------------+
    * E70 |         ADMSABXR          |         AIMMTABL          |
    *     +-------------+------+------+---------------------------+
    * E78 |  IMESCAPE   |:EXSMD|:QEFLC|         SVCWKADR          |
    *     +-------------+------+------+---------------------------+
    * E80 |         ADMSCSF           |         NUCEXIS           |
    *     +---------------------------+---------------------------+
    * E88 |         RLDDATA           |         RLDPOINT          |
    *     +---------------------------+---------------------------+
    * E90 |         ADMSEXQ           |         MISCECB           |
    *     +---------------------------+---------------------------+
    * E98 |                       NUCTODCA                        |
    *     |                                                       |
    *     +----------------------------------+------+------+------+
    * EA8 |            NUCLANGC              |:NLLID|:DBCS |NUCEAF|
    *     +---------------------------+------+------+------+------+
    * EB0 |         NUCLANGD          |         NUCEXSAD          |
    *     +---------------------------+---------------------------+
    * EB8 |         NUCMLNAM          |         NUCLLNAM          |
    *     +---------------------------+---------------------------+
    * EC0 |         NUCDLNAM          |         NUCTLNAM          |
    *     +---------------------------+---------------------------+
    * EC8 |         NUCMLDIR          |         NUCLLDIR          |
    *     +---------------------------+---------------------------+
    * ED0 |         NUCDLDIR          |          NUCED4           |
    *     +---------------------------+---------------------------+
    * ED8 |         NUCMLSIZ          |         NUCLLSIZ          |
    *     +---------------------------+---------------------------+
    * EE0 |         NUCDLSIZ          |         NUCTLSIZ          |
    *     +-------------+-------------+-------------+-------------+
    * EE8 |  NUCMLNUM   |  NUCLLNUM   |  NUCDLNUM   |  NUCTLNUM   |
    *     +-------------+-------------+-------------+-------------+
    * EF0 |         NUCHSTDA          |         NUCHSTPO          |
    *     +---------------------------+---------------------------+
    * EF8 |         NUCLANSS          |         NUCSCRQA          |
    *     +---------------------------+---------------------------+
    * F00 |         NUCSMSTA          |         NUCSMSTB          |
    *     +---------------------------+---------------------------+
    * F08 |         NUCSMSTC          |         NUCWEXWR          |
    *     +---------------------------+---------------------------+
    * F10 |         NUCWEXRD          |         NUCAPAR           |
    *     +---------------------------+---------------------------+
    * F18 |         NUCCIOBF          |         NUCASTTV          |
    *     +---------------------------+---------------------------+
    * F20 |         NUCAXADT          |         NUCALADR          |
    *     +---------------------------+---------------------------+
    * F28 |         NUCGETHI          |          NUCF2C           |
    *     +---------------------------+---------------------------+
    * F30 |         NUCCSFFN          |         NUCADIE           |
    *     +---------------------------+---------------------------+
    * F38 |                       NUCINSTS                        |
    *     +---------------------------+---------------------------+
    * F40 |         NUCSMPST          |         NUCSMQST          |
    *     +---------------------------+---------------------------+
    * F48 |         NUCWVTIX          |         NUCWVXPI          |
    *     +---------------------------+---------------------------+
    * F50 |          NUCWMX           |         NUCDSXR           |
    *     +---------------------------+---------------------------+
    * F58 |         NUCMCXR           |         NUCSPCBK          |
    *     +---------------------------+---------------------------+
    * F60 |          NUCMGM           |        NUCFMPFN-          |
    *     +---------------------------+---------------------------+
    * F68 |          -(F64)           |         NUCDIAB           |
    *     +---------------------------+---------------------------+
    * F70 |         NUCRXSOK          |          NUCF74           |
    *     +---------------------------+---------------------------+
    * F78 |          NUCF78           |          NUCF7C           |
    *     +---------------------------+---------------------------+
    * F80 |         NUCMCACH          |         TIMRSAVE          |
    *     +---------------------------+---------------------------+
    * F88 |         NUCVMGUI          |         NUCRXWK           |
    *     +---------------------------+---------------------------+
    * F90 |         NUCCSLS0          |         NUCCSLS1          |
    *     +---------------------------+---------------------------+
    * F98 |         NUCCSLS2          |         NUCCSLS3          |
    *     +---------------------------+---------------------------+
    * FA0 |         NUCCSLS4          |         NUCCSLTB          |
    *     +---------------------------+---------------------------+
    * FA8 |                       NUCFTYPE                        |
    *     +-------------------------------------------------------+
    * FB0 |                       NUCMTSEG                        |
    *     +---------------------------+---------------------------+
    * FB8 |          NUCFB8           |          NUCFBC           |
    *     +---------------------------+---------------------------+
    * FC0 |          NUCFC0           |         OSTXTBUF          |
    *     +---------------------------+---------------------------+
    * FC8 |         NUCWDBA           |          NUCFCC           |
    *     +---------------------------+---------------------------+
    * FD0 |          NUCFD0           |          NUCFD4           |
    *     +---------------------------+---------------------------+
    * FD8 |          NUCFD8           |          NUCFDC           |
    *     +---------------------------+---------------------------+
    * FE0 |          NUCFE0           |          NUCFE4           |
    *     +---------------------------+---------------------------+
    * FE8 |          NUCFE8           |          NUCFEC           |
    *     +---------------------------+---------------------------+
    * FF0 |          NUCFF0           |          NUCFF4           |
    *     +---------------------------+---------------------------+
    * FF8 |          NUCFF8           |          NUCFFC           |
    *     +---------------------------+---------------------------+
    *1000
    *
    *** Overlay for NUCABEND in NUCON

#### NUCON Cross Reference

    Symbol         Dspl Value
    -------------- ---- -----
    AABBREV        0CD8
    AABNGO         0D38
    AABNSVC        0664
    AABWSECT       0C98
    AACTFREE       06B8
    AACTFRET       06BC
    AACTLKP        06B0
    AACTNXT        06B4
    AADTLKP        0678
    AADTLKW        0698
    AADTNXT        06C0
    AALTCVT        0500
    AAMSSYS        0C84
    ABAMSYS        0CF0
    ABATABND       0458
    ABATLIMT       045C
    ABATPROC       0454
    ABGCOM         04E0
    ABLKIND        0CC0
    ABNXTPTR       0E6C
    ABNXTSW        05E3 01
    ACBLIST        0C90
    ACITDB         0D40
    ACMSCVT        0010
    ACMSLVLM       0E60
    ACMSRET        0688
    ADBGSECT       0D18
    ADEVIND        0CB8
    ADEVSUP        0CB4
    ADEVSUP2       0CDC
    ADEVTAB        0608
    ADIKQLAB       0C68
    ADIOSECT       0660
    ADMPEXEC       065C
    ADMSABN        0D34
    ADMSABW        0D1C
    ADMSABXR       0E70
    ADMSALU        0CAC
    ADMSBLKR       0CD0
    ADMSBLKW       0CD4
    ADMSCAT        0D54
    ADMSCPF        0D58
    ADMSCRD        066C
    ADMSCSF        0E80
    ADMSCWR        0D28
    ADMSCWT        0D24
    ADMSERL        0668
    ADMSERR        0D20
    ADMSEXQ        0E90
    ADMSFREB       0670
    ADMSFRES       0D48
    ADMSIOW        0D14
    ADMSIOWR       0D2C
    ADMSITI        0D30
    ADMSITSR       0D44
    ADMSLADN       0CCC
    ADMSLIO        05F4
    ADMSPIOC       0650
    ADMSROS        06A8
    ADMSSVT        0638
    ADMSTRKA       0CA0
    ADMSTRKD       0CA8
    ADMSTRKM       0CA4
    ADMSVIB        0C74
    ADMSZIT        0C9C
    ADOSDCSS       04E8
    AEPOINT        0CE8
    AERASE         06D4
    AESTATE        0CE0
    AESTATEW       0CE4
    AEXCAB         0D5C
    AEXEC          0690
    AEXTSECT       06A0
    AFINIS         06F0
    AFSTLKP        060C
    AFSTLKW        0614
    AFVS           0600
    AGAMSEG        0DF4
    AGETCLK        0610
    AHASHMNT       0CFC
    AIADT          061C
    AIMMTABL       0E74
    AINTAB         0D50
    AINTRTBL       0554
    AIOSECT        0658
    AIUCVTAB       0E64
    AKILLEX        06E0
    ALABELRD       0CC4
    ALABELWR       0CC8
    ALADAD         0D3C
    ALDRTBLS       0564
    ALIASENT       05AC
    ALOKTB         0C70
    ALTASAVE       04DC
    ANUCEND        0520
    AOPSECT        0604
    AOSRET         0684
    AOUTRTBL       0558
    APGMSECT       0654
    APIE           0618
    APOINT         06FC
    APPSAVE        04F8
    ARDBUF         06E8
    ARDTK          0624
    ASCANN         0628
    ASCANO         068C
    ASCBPTR        06A4
    ASORTFST       0CB0
    ASSTAT         062C
    ASSTATX        0D04
    ASSTATZ        0D08
    ASTART         0694
    ASTATE         06F4
    ASTATEW        06F8
    ASTATEXT       0680
    ASTGSB         0D4C
    ASTRINIT       0640
    ASUBSECT       0634
    ASVCSECT       0674
    ASYSCOM        04E4
    ASYSNAMS       05EC
    ASYSREF        0014
    ATABEND        0630
    ATBLIND        0CBC
    ATCBPTR        0DF0
    ATEMPLIN       070C
    ATFINIS        06E4
    ATLBMODL       05C8
    ATRKLKP        06C4
    ATRKLKPX       06C8
    ATRUNC         0CEC
    ATSOCPPL       05D8
    ATTNHIT        05E1 01
    ATYPSRCH       06D8
    AUPDISK        06DC
    AUPUFD         067C
    AUSABRV        069C
    AUSER          0620
    AUSERRST       0460
    AUSRAREA       0524
    AVIPBLK        0C78
    AVSAMSYS       0C80
    AVSREOJ        0C88
    AVSRWORK       0C8C
    AWRBUF         06EC
    AWRTK          063C
    AYSTATX        0D0C
    AYSTATZ        0D10
    BALRSAVE       0BE0
    BAMFLAGS       0CF8
    BATABNAB       0452 10
    BATCPCH        0452 20
    BATCPEX        0450 08
    BATCPFNG       0452 80
    BATDCMS        0451 08
    BATFLAGS       0450
    BATFLAG2       0451
    BATFLAG3       0452
    BATFLAG4       0453
    BATIPLSS       0451 04
    BATLOAD        0450 40
    BATMOVE        0450 02
    BATNOEX        0450 20
    BATPRT         0452 40
    BATRERR        0450 10
    BATRUN         0450 80
    BATSTOP        0451 02
    BATSYSAB       0451 01
    BATTERM        0450 01
    BATUSEX        0450 04
    BATXCPU        0451 40
    BATXLIM        0451 80
    BATXPRT        0451 20
    BATXPUN        0451 10
    CAW            0048
    CLEAROP        0593 40
    CLKVALMD       02D8
    CMNDEXEC       0840
    CMNDLINE       0740
    CMNDLIST       0848
    CMSLVL         0E5C
    CMSPROG        0E5D
    CMSSERV        0E5E
    CODE203        052C
    COMPSWT        05C7 80
    CONSTACK       0A60
    CPULOG         0080
    CSW            0040
    CURRCENT       044E
    CURRCPUT       0294
    CURRDATE       0280
    CURRIOOP       0540
    CURRSAVE       0528
    CURRTIME       0288
    CURRVIRT       0290
    DATIPCMS       02D0
    DBGABN         05E3 10
    DBGEXEC        05E3 80
    DBGEXINT       05E3 20
    DBGFLAGS       05E3
    DBGNSHR        05E3 08
    DBGPGMCK       05E3 40
    DBGRECUR       05E3 02
    DBGSHR         05E3 04
    DCBSAV         05DC
    DEVICE         026C
    DIAGTIME       0280
    DMNTECB        0504
    DMPTIT         03B4
    DMPTITLE       03BC
    DONTHASH       05E4 20
    DOSBAM         0CF8 80
    DOSCOMP        04D8 10
    DOSEOJ         04D8 01
    DOSFIRST       04F0
    DOSFLAGS       04D8
    DOSKPART       04F6
    DOSLBSV        046C
    DOSMODE        04D8 80
    DOSNUM         04F4
    DOSPIO         04D8 08
    DOSRC          04D9
    DOSSVC         04D8 40
    DOSTRANS       04FC
    DOSVSAM        04D8 20
    DSYM           0598
    DUMPLIST       03A0
    DYLD           05C7 08
    DYLIBNOW       05C7 02
    DYLIBO         05C7 04
    DYMBRNM        05C7 01
    DYNAEND        05B0
    ECRLOG         01C0
    ERR$202        0448
    EXECFLAG       05E6
    EXECHALT       05E6 10
    EXECMASK       05E6 20
    EXECRUN        05E6 80
    EXECSTOP       05E6 40
    EXECTMSK       05E6 02
    EXECTRAC       05E6 01
    EXECTRST       05E6 08
    EXRESET        05E4 80
    EXTNPSW        0058
    EXTOPSW        0018
    FCBFIRST       05C0
    FCBNUM         05C4
    FCBTAB         05C0
    FEIBM          0274
    FIRSTDMP       03A8
    FPRLOG         0160
    FREESAVE       0BA0
    FRSTLOC        056C
    FRS06          03B0
    FSTFINRD       054C
    GEN370FL       0593 01
    GET1           0594
    GLBLTABL       0440
    GPRLOG         0180
    GRAFDEV        05E1 10
    GRS015         03A0
    HLPADDR        0270
    IADT           0644
    IMACTIVE       0E78 80
    IMCHAR         0E78 00000E79
    IMESCAPE       0E78
    INSTALID       0220
    IONPSW         0078
    IOOPSW         0038
    IPLADDR        0268
    IPLCCW1        0008
    IPLCCW2        0010
    IPLPSW         0000
    JSYM           05A0
    KOSWITCH       05E1 40
    KXSWITCH       05E1 80
    LABFIRST       05B8
    LABNUM         05BC
    LASTCMND       02A0
    LASTCPUT       029C
    LASTDMP        03AC
    LASTEXEC       02B0
    LASTLMOD       02C0
    LASTLOC        0570
    LASTTMOD       02C8
    LASTVIRT       0298
    LDRADDR        0578
    LDRFLAGS       0588
    LDRRTCD        057C
    LINKLAST       05CC
    LINKSTRT       05D0
    LOADINCL       0593 02
    LOCCNT         0574
    LOC0176        03A4
    LOWSAVE        00C0
    LSTFINRD       0550
    MACLBSV        034C
    MCKNPSW        0070
    MCKOPSW        0030
    MDPCALL        0593 04
    MISCECB        0E94
    MISFLAGS       05E1
    MISFLAG2       05E4
    MODFLGS        0593
    MODGNALL       0593 10
    MODGNDOS       0593 20
    MONCLASS       0094
    MONCODE        009C
    MSGFLAGS       05E2
    NDIKQLAB       0C6C
    NEGITS         05E1 02
    NOABBREV       05E0 10
    NODDSK         05E1 04
    NOERRMSG       05E2 04
    NOERRTXT       05E2 02
    NOIMPCP        05E0 40
    NOIMPEX        05E0 80
    NOMAPFLG       0593 80
    NOPAGREL       05E0 08
    NORDYMSG       05E2 20
    NORDYTIM       05E2 10
    NOSTDSYN       05E0 20
    NOTYPING       05E2 40
    NOTYPOUT       05E2 80
    NOVMREAD       05E0 04
    NUCABEND       0D34
    NUCADFNC       0E2C
    NUCADIE        0F34
    NUCAEXR        0D8C
    NUCAFCHS       0D78
    NUCAFROC       0328
    NUCAFROU       032C
    NUCAFRRC       0330
    NUCAFRRU       0334
    NUCAFRSC       02F0
    NUCAFRSD       02F4
    NUCAFRSR       02F8
    NUCAKGA        0488
    NUCALADR       0F24
    NUCALPHA       0DF8
    NUCAMD7F       0714
    NUCAMD80       0710
    NUCAMQVM       0340
    NUCANC         0738
    NUCANCHR       073C
    NUCAPAR        0F14
    NUCAPARL       0D94
    NUCAPIO        0DEC
    NUCAPLD        0480
    NUCARELM       0DC0
    NUCASIT        0100
    NUCASTQY       06AC
    NUCASTTV       0F1C
    NUCASYID       0C94
    NUCAVW         0478
    NUCAXADT       0F20
    NUCAXLOC       0DA4
    NUCBCPU        0486
    NUCCBLKS       0D7C
    NUCCDCBA       0D98
    NUCCELGT       0498
    NUCCELST       049C
    NUCCELSV       04A4
    NUCCFA         0CFA
    NUCCFB         0CFB
    NUCCHI         0DE8
    NUCCIOBF       0F18
    NUCCLOK        00E0
    NUCCOMDR       05E5 08
    NUCCPCMD       05E4 08
    NUCCSFFN       0F30
    NUCCSLBK       0DD0
    NUCCSLFE       0DB0
    NUCCSLS0       0F90
    NUCCSLS1       0F94
    NUCCSLS2       0F98
    NUCCSLS3       0F9C
    NUCCSLS4       0FA0
    NUCCSLTB       0FA4
    NUCCSLTM       02EC
    NUCCSLVT       0DA8
    NUCCSLV2       0DAC
    NUCCWA         0DE0
    NUCCWR13       0D9C
    NUCC6301       0C63 01
    NUCC6302       0C63 02
    NUCC6304       0C63 04
    NUCC6308       0C63 08
    NUCC7D         0C7D
    NUCC7E         0C7E
    NUCC7F         0C7F
    NUCDBC         0DBC
    NUCDBCS        0EAE
    NUCDBON        0EAE 40
    NUCDBSYS       0EAE 80
    NUCDB8         0DB8
    NUCDCSCB       0DD8
    NUCDEVF        0E20
    NUCDIAB        0F6C
    NUCDLDIR       0ED0
    NUCDLNAM       0EC0
    NUCDLNUM       0EEC
    NUCDLSIZ       0EE0
    NUCDMSTR       0444 80
    NUCDSXR        0F54
    NUCD88         0D88
    NUCEAF         0EAF
    NUCED4         0ED4
    NUCENAWA       02E0
    NUCEPARM       0080
    NUCERO         0D20
    NUCERT         0E38
    NUCEXAID       00A0
    NUCEXCDE       0086
    NUCEXEC        05E5 40
    NUCEXIS        0E84
    NUCEXREP       0DD4
    NUCEXSAD       0EB4
    NUCEXSMD       0E7A
    NUCEXSST       05E6 04
    NUCFBC         0FBC
    NUCFB8         0FB8
    NUCFCC         0FCC
    NUCFC0         0FC0
    NUCFDC         0FDC
    NUCFD0         0FD0
    NUCFD4         0FD4
    NUCFD8         0FD8
    NUCFEC         0FEC
    NUCFE0         0FE0
    NUCFE4         0FE4
    NUCFE8         0FE8
    NUCFFC         0FFC
    NUCFF0         0FF0
    NUCFF4         0FF4
    NUCFF8         0FF8
    NUCFLAGA       0445
    NUCFLAG3       05E5
    NUCFMPFN       0F64
    NUCFNSMC       0DA0
    NUCFPLCA       05BE 02
    NUCFRWRK       0530
    NUCFSA         00F8
    NUCFSR14       0308
    NUCFSTLN       0D60
    NUCFSTM        02ED
    NUCFTYPE       0FA8
    NUCF2C         0F2C
    NUCF7C         0F7C
    NUCF74         0F74
    NUCF78         0F78
    NUCGEEXC       0C63 80
    NUCGELST       0C63 40
    NUCGENXT       0C63 20
    NUCGETHI       0F28
    NUCGEXIT       0C63
    NUCGLOBL       0CF9 20
    NUCHSHTB       0E18
    NUCHSTDA       0EF0
    NUCHSTPO       0EF4
    NUCHSTR        0734
    NUCHSTSZ       0EF0 00001FFE
    NUCIDAL        0300
    NUCIDALL       0304
    NUCINSTS       0F38
    NUCINTP        00BC
    NUCIOADR       00BA
    NUCIOSID       00B8
    NUCIPLDN       05E5 01
    NUCITEXC       0310
    NUCITSSA       0360
    NUCLANGA       05F0
    NUCLANGC       0EA8
    NUCLANGD       0EB0
    NUCLANSS       0EF8
    NUCLA20        05EA 10
    NUCLCNTA       05B4
    NUCLDBK        0724
    NUCLDEND       0720
    NUCLDMOD       0DC4
    NUCLDPF        0730
    NUCLDPG        0732
    NUCLDR0S       0E30
    NUCLDSET       02E8
    NUCLICMD       0358
    NUCLKED        05E4 04
    NUCLLDIR       0ECC
    NUCLLNAM       0EBC
    NUCLLNUM       0EEA
    NUCLLSIZ       0EDC
    NUCLODSV       0DC8
    NUCLOWAD       0708
    NUCLRIWA       0D00
    NUCLSTLN       0D64
    NUCMACLS       04A0
    NUCMA4A8       05EA 40
    NUCMCACH       0F80
    NUCMCDS        05EA 01
    NUCMCIC        00E8
    NUCMCIC0       00E8
    NUCMCIC1       00E9
    NUCMCIC2       00EA
    NUCMCIC3       00EB
    NUCMCIC4       00EC
    NUCMCIC5       00ED
    NUCMCIC6       00EE
    NUCMCIC7       00EF
    NUCMCKSA       0344
    NUCMCXR        0F58
    NUCMDMAP       0731 80
    NUCMEC         05EA 20
    NUCMFLAG       05EA
    NUCMGM         0F60
    NUCMLDIR       0EC8
    NUCMLNAM       0EB8
    NUCMLNUM       0EE8
    NUCMLSIZ       0ED8
    NUCMODF        0731
    NUCMTAV        047C
    NUCMTA24       0484 20
    NUCMTCWT       0485 80
    NUCMTDS        0484 04
    NUCMTDSP       0484 02
    NUCMTEN        0484 01
    NUCMTEXC       0485 20
    NUCMTFLG       0484
    NUCMTFL0       0484
    NUCMTFL1       0485
    NUCMTFRK       0485 04
    NUCMTISG       0484 08
    NUCMTMP        0484 80
    NUCMTNB        0484 40
    NUCMTROO       0485 08
    NUCMTRTE       0484 10
    NUCMTSEG       0FB0
    NUCMTSFS       0485 40
    NUCMT1SG       0485 10
    NUCMXA         05EA 80
    NUCMXC         05EA 04
    NUCM210        05EA 08
    NUCM370        05EA 02
    NUCNADDR       0700
    NUCNBSTK       0D6C
    NUCNLLID       0EAD
    NUCNLSTK       0D68
    NUCNLTRT       0E04
    NUCNRST        0C62 80
    NUCOLDCM       0445 80
    NUCOMEGA       0E00
    NUCONLEN       1000 00001000
    NUCOPNMC       0D90
    NUCOSDLB       04D8 02
    NUCOSFLG       0CF9
    NUCOSMP        048C
    NUCOSPL        0490
    NUCOSPLL       0494
    NUCOSRLD       0CF9 10
    NUCOSRUN       0CF9 80
    NUCPATHF       0E1C
    NUCPENDW       05E5 80
    NUCPGCDE       008E
    NUCPHI         0DE4
    NUCPLBEG       0E0C
    NUCPLCMD       0E08
    NUCPLEND       0E10
    NUCPLFID       0E14
    NUCPLIST       0E08
    NUCPLSWT       0E14 NUCPLFID
    NUCPPID        04A8
    NUCPRR14       030C
    NUCPRTM        02EE
    NUCPUADR       0084
    NUCQEFLC       0E7B
    NUCREADY       0445 40
    NUCRLDR        0736
    NUCROSAD       0470
    NUCROSDW       0474
    NUCRSK         04C0
    NUCRSV1        004C
    NUCRSV2        0054
    NUCRSV3        0088
    NUCRSV7        0468
    NUCRXSOK       0F70
    NUCRXWK        0F8C
    NUCSCBLK       0CF4
    NUCSCRQA       0EFC
    NUCSDSGB       0D84
    NUCSERVE       05E5 20
    NUCSFSCB       0D80
    NUCSGIOP       03B8
    NUCSIGMA       0DFC
    NUCSIMFG       05BE
    NUCSIMWK       071C
    NUCSMBLK       0E24
    NUCSMPST       0F40
    NUCSMQST       0F44
    NUCSMSTA       0F00
    NUCSMSTB       0F04
    NUCSMSTC       0F08
    NUCSPCBK       0F5C
    NUCSRVAB       05E5 10
    NUCSTTMC       0718
    NUCSVCN        008A
    NUCSVILC       0089
    NUCSVQOF       0DDC
    NUCSVQPW       0728
    NUCSVQ13       0704
    NUCSYSDF       0CF9 40
    NUCSZABV       0E28
    NUCTAANY       05EB C0
    NUCTAMDE       05EB
    NUCTAPCB       064C
    NUCTA24        05EB 40
    NUCTA31        05EB 80
    NUCTA64        05EB 01
    NUCTCBN        04B4
    NUCTCBO        04B0
    NUCTCSLO       05BE 04
    NUCTEENT       0C63 10
    NUCTIEIN       0D70
    NUCTIMR        00D8
    NUCTLADI       0320
    NUCTLANA       031C
    NUCTLANU       0316
    NUCTLASI       0324
    NUCTLDIR       0354
    NUCTLNAM       0EC4
    NUCTLNUM       0EEE
    NUCTLSIZ       0EE4
    NUCTNABL       05E4 10
    NUCTNEVR       05BE 08
    NUCTODCA       0E98
    NUCTRBUF       035C
    NUCTRFLG       0444
    NUCTRF01       0444 01
    NUCTRF02       0444 02
    NUCTRF04       0444 04
    NUCTRF08       0444 08
    NUCTRF10       0444 10
    NUCTRF20       0444 20
    NUCTRF40       0444 40
    NUCTVIOF       05BE 20
    NUCTVISL       05BE 10
    NUCTXCP        00A8
    NUCUPPER       0E34
    NUCURLBK       05E5 04
    NUCUSER1       0E48
    NUCUSER2       0E4C
    NUCUSER3       0E50
    NUCUSER4       0E54
    NUCVECTR       05E4 01
    NUCVIP         0C64
    NUCVMGUI       0F88
    NUCVSAM2       0C62
    NUCWDBA        0FC8
    NUCWEXRD       0F10
    NUCWEXWR       0F0C
    NUCWMX         0F50
    NUCWRKBK       0DCC
    NUCWVTIX       0F48
    NUCWVXPI       0F4C
    NUCXAILC       008D
    NUCXCBEE       0E44
    NUCXCBLK       0E3C
    NUCXEND        0E68
    NUCXFRES       0E40
    NUCYADDR       0272
    NUCY2000       0445 20
    NUCZARCH       0445 01
    NUC1ACER       05BE 40
    NUC1OSAC       05BE 80
    NUC2EF         02EF
    NUC2FC         02FC
    NUC2SP         0648
    NUC314         0314
    NUC4AC         04AC
    NUC4BC         04BC
    NUC4B8         04B8
    NUC4CC         04CC
    NUC4C0         04C0 00NUCRSK
    NUC4C4         04C4
    NUC4C8         04C8
    NUC4DA         04DA
    NUC4DB         04DB
    NUC4D0         04D0
    NUC4D4         04D4
    NUC4KKEY       05E4 02
    NUC44502       0445 02
    NUC44504       0445 04
    NUC44508       0445 08
    NUC45201       0452 01
    NUC45202       0452 02
    NUC45204       0452 04
    NUC45208       0452 08
    NUC45301       0453 01
    NUC45302       0453 02
    NUC45304       0453 04
    NUC45308       0453 08
    NUC45310       0453 10
    NUC45320       0453 20
    NUC45340       0453 40
    NUC45380       0453 80
    NUC476         0476
    NUC5BE01       05BE 01
    NUC5BF         05BF
    NUC5E002       05E0 02
    NUC5E502       05E5 02
    NUC50C         050C
    NUC508         0508
    NUC51C         051C
    NUC510         0510
    NUC514         0514
    NUC518         0518
    NUC52E         052E
    NUC6CC         06CC
    NUC6D0         06D0
    NUC733         0733
    NUMFINRD       055C
    NUMPNDWR       055E
    NUSERFWD       0464
    NXTSYM         05A4
    OPTFLAGS       05E0
    OSRESET        05C7 20
    OSSFLAGS       05C7
    OSSMNU         05C7 40
    OSTXTBUF       0FC4
    OSTYPLD        05E4 40
    OSWAIT         05C7 10
    PCTVSAM        0C60
    PENDREAD       0544
    PENDWRIT       0548
    PERADDR        0098
    PERCODE        0096
    PGMNPSW        0068
    PGMOPSW        0028
    PREVCMND       02A8
    PREVEXEC       02B8
    PRFPOFF        05E7 80
    PRFTSYS        05E7 40
    PRFUSYS        05E7 20
    PRHOLD         058C
    PROTFLAG       05E7
    PSW            0580
    QSWITCH        05E1 08
    RDTDRCT        05E0 01
    REDERRID       05E2 08
    RELPAGES       05E1 20
    RLDDATA        0E88
    RLDDWSZ        0E88 00002000
    RLDPOINT       0E8C
    RSTNPSW        0000
    RSTOPSW        0008
    SPECLF         05E2 01
    STRTADDR       0568
    SUBACT         05E9 01
    SUBFLAG        05E9
    SUBINIT        05E9 02
    SUBREJ         05E9 08
    SUBRTN         05E9 04
    SVCNPSW        0060
    SVCOPSW        0020
    SVCWKADR       0E7C
    SVC12SAV       04EC
    SYSADDR        026A
    SYSLOAD        0593 08
    SYSNAME        0260
    SYSREF         0600
    SYSTEMID       0200
    TAXEADDR       05D4
    TBENT          0590
    TIMER          0050
    TIMRSAVE       0F84
    TOTLIBS        0350
    TSOATCNL       05E8 80
    TSOFLAGS       05E8
    TXLIBSV        0348
    TXLIBSVA       0318
    TXTDIRC        0354
    UNRES          0592
    USERLVL        0E58
    USRVERSN       0445 10
    VCADTLKP       0534
    VCADTLKW       053C
    VCADTNXT       0538
    VCFSTLKP       05F8
    VCFSTLKW       05FC
    VIPINIT        0C7C 20
    VIPSOP         0C7C 08
    VIPTCLOS       0C7C 04
    VMSIZE         0560
    VMSIZEG        0338
    VSAMFLG1       0C7C
    VSAMRUN        0C7C 80
    VSAMSERV       0C7C 10
    VSAMSOS        0C7C 02
    VSJOBCAT       0C7C 40
    VSMINSTL       04D8 04
    VSRACTIV       0C7C 01
    WAITSAVE       0C20
    XCARLOG        0120

This information is based on z/VM V5R2.0.
Last updated on 6 Dec 2005 at 15:42:32 EDT.
Copyright IBM Corporation, 1990, 2005