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

#### SVGBK

Prolog

Control Block Contents
SVGBK DSECT

Storage Layout

Cross Reference (Contains links to field and bit definitions)

#### SVGBK Prolog

     Name       : HCPSVGBK
     Description: Linkage savearea, longreg format
     DSECT      : SVGBK
     Function   : The SVGBK is used in the call-with-dynamic-savearea
                  calling linkage to a "long-register", or "longreg",
                  routine (one which uses 64-bit registers when the
                  machine provides them).  The
                  caller does not supply the savearea.  Instead, the
                  linkage assistance routines (HCPSVC/SVD) allocate
                  the SVGBK and the called routine then saves the
                  caller's registers in the SVGBK.
                  Shortreg routines (those which always treat
                  registers as 32 bits) use an SAVBK instead of an
                  SVGBK.
                  The SVGBK dsect is also used as a map of the
                  several fixed saveareas such as PFXBALSV and
                  PFXTMPSV, when they are used by longreg and routines.
                  Finally, the SVGBK can be used as a longreg
                  alternative to a CPEBK.  (There is no "CPGBK".)
                  HCPSTK will accept an SVGBK to be stacked for later
                  dispatching by HCPDSB.
     Located by : R13       when running in any "long-register"
                  routine which is called using a
                  call-with-dynamic-savearea linkage.
                  Points to current (already filled up)
                  savearea.
                  SVGR13    This field in callee's savearea points
                  back to the callers savearea.  (This
                  assumes that the caller is a longreg
                  routine and has a savearea of its own,
                  and that he had its address in
                  R13 at the time of the call.  See also
                  SVGCSAV for another backward pointer.)
                  SAVEFPNT  forward chaining pointer.  The chain of
                  /SVGFPNT  available SVGBK's uses this pointer.
                  When the SVGBK is in use as a savearea,
                  SAVEFPNT is normally not used for
                  anything.  (SAVER13 points back to the
                  preceding SVGBK/SAVBK if the caller
                  had one.)
                  SAVEBPNT  This pointer is available for backward
                  /SVGBPNT  chaining, but is not normally used.
                  VMDQURCP  Urgent CPEBK/SVGBK stack
                  VMDQCPEF  Normal CPEBK/SVGBK stack
     Created by : HCPSVC    when no free SVGBKs are available
                  HCPSAM    during processor online storage
                  allocation
     Deleted by : HCPSVC    during SVGBK reclaim processing
                  HCPSAM    during processor offline storage
                  deallocation
     References : The front of the SVGBK is a header, the SVHBK,
                  which is common among the CPEBK, SAVBK, and SVGBK.
                  Chains threaded through SVGFPNT/-BPNT may contain
                  a mix of SVGBKs and CPEBKs or SAVBKs.
     Serialized : Dispatch lock for all fields except SVGCPRQ,
                  except for SVGCPRQ, which is serialized by TRQBK
                  and by the MP-defer function.
     Notes      :
     Comments   : SVGFPNT and SVGBPNT are used to maintain various
                  SAVBK/CPEBK/SVGBK queues and stacks.  Routines may
                  use these fields if the SVGBK is not currently on a
                  queue or stack.  An example is the SVGBK used on a
                  dynamic call.
                  If a routine calls another routine to stack an
                  SVGBK onto a queue, the calling routine should be
                  aware that the SVGFPNT and SVGBPNT fields may have
                  been changed as a result of the call.  The calling
                  routines should refrain from using these fields.

#### SVGBK Control Block Content

#### SVGBK DSECT

    Hex   Dec Type/Val   Lng Label (dup)    Comments
    ---- ---- --------- ---- -------------- --------
    0000    0 Structure      SVGBK          Linkage savearea, longreg format
    0000    0 Bitstring    1 SVGHEAD (0)    Savearea header
          The header of the savearea includes queue pointers, status
          flags, and a type code.  This header must be laid out
          the same in all savearea formats, since a single queue
          or savearea chain may contain a mix of both blocks.
          Eventually, all header fields are to be SVHxxxx.
    0000    0 Address      4 SVGFPNT        General forward pointer
    0004    4 Address      4 SVGBPNT        General backward pointer
                                            (backward pointer not used for
                                            single-thread lists)
    0008    8 Address      4 SVGSFQP        Savearea frame queue pointer
    000C   12 Address      4 SVGCPRQ        Cross processor return queue addr
    0010   16 Bitstring    1 SVGSCHC        Savearea dispatching controls
              1... ....      SVGNOFR        X'80' SVGNOFR Do not fret
                                            savearea on dispatch
              .1.. ....      SVGSKCR        X'40' SVGSKCR This is a stacked
                                            return
              ..1. ....      SVGSKCL        X'20' SVGSKCL This is a stacked
                                            call
              ...1 ....      SVGRTNF        X'10' SVGRTNF "Return" with no
                                            fret
              .... 1...      SVGUCFM        X'08' SVGUCFM Stack as console
                                            function work
              .... .1..      SVGURGT        X'04' SVGURGT Stack as urgent
                                            work
              .... ...1      SVGDMCO        X'01' SVGDMCO Dispatch on the
                                            master CPU only
    0011   17 Bitstring    1 SVGCALC        Block usage status
              1... ....      SVHOPEN        X'80' SVHOPEN *!*
              .1.. ....      SVGGET         X'40' SVGGET Savearea obtained
                                            via GET
              ..1. ....      SVGCSAV        X'20' SVGCSAV FPNT is ptr to C
                                            savearea chain
              .... .1..      SVHSVA         X'04' SVHSVA *!*
              .... ..1.      SVHIS2W        X'02' SVHIS2W *!*
              .... ...1      SVHHF2W        X'01' SVHHF2W *!*
    0012   18 Bitstring    1 SVGIAC         Address mode when we HCPCALL
    0013   19 Bitstring    1 SVGFORM        Savearea format/content
              1... ....      SVGSTAM        X'80' SVGSTAM For STATIC entry
                                            pt, TmodeSTD or TmodeINT: ARs
                                            saved by HCPENTER, and should be
                                            restored by HCPEXIT. Also, set by
                                            HCPSTK and others, tested by
                                            HCPDSB, indicating ARs should be
                                            restored at CPEBK unstack time.
              .1.. ....      SVGCREG        X'40' SVGCREG Savearea has
                                            contiguous 64-bit register fields
                                            (SVGBK)
              ..1. ....      SVGRG64        X'20' SVGRG64 Savearea
                                            accommodates 64 bits per register
                                            (SVGBK, or SAVBK with SAVEHIRG
                                            extension)
              .11. ....      SVGREGF        SVGCREG+SVGRG64 SVGREGF Mask for
                                            register-layout bits above; has
                                            value: noformat 00 for SAVBK 01
                                            for SAVBK with SAVEHIRG 11 for
                                            SVGBK enoformat
    0014   20 Address      4 SVGRETN        Return linkage routine address
    0018   24 Bitstring    1 SVGBODY (0)    Savearea body
    0018   24 Dbl-Word     8 *              Reserved for IBM use
    0020   32 Bitstring  224 SVGAREA (0)    Register and working storage
          Register contents:  Note the terminology below assumes
          64-bit registers, with a high-order word (bytes 0-3,
          bits 0-31) and a low-order word (bytes 4-7, bits 32-63).
          Registers 0-15 are contiguous in the block.
          Names are of the form
            SVGRn   for the 64-bit register,
            SVGRnHI for the high-order 32 bits, and
            SVGRnLO for the low-order 32 bits.
          Register contents are contiguous.
    0020   32 Bitstring  128 SVGREGS (0)    Caller's registers
    0020   32 Dbl-Word     8 SVGR0 (0)      Caller's saved register 0
    0020   32 Signed       4 SVGR0HI        bytes 0-3
    0024   36 Signed       4 SVGR0LO (0)    bytes 4-7
    0024   36 Bitstring    1 SVGR0B4        byte 4
    0025   37 Bitstring    1 SVGR0B5        byte 5
    0026   38 Bitstring    1 SVGR0B6        byte 6
    0027   39 Bitstring    1 SVGR0B7        byte 7
    0028   40 Dbl-Word     8 SVGR1 (0)      Caller's saved register 1
    0028   40 Signed       4 SVGR1HI        bytes 0-3
    002C   44 Signed       4 SVGR1LO (0)    bytes 4-7
    002C   44 Bitstring    1 SVGR1B4        byte 4
    002D   45 Bitstring    1 SVGR1B5        byte 5
    002E   46 Bitstring    1 SVGR1B6        byte 6
    002F   47 Bitstring    1 SVGR1B7        byte 7
    0030   48 Dbl-Word     8 SVGR2 (0)      Caller's saved register 2
    0030   48 Signed       4 SVGR2HI        bytes 0-3
    0034   52 Signed       4 SVGR2LO (0)    bytes 4-7
    0034   52 Bitstring    1 SVGR2B4        byte 4
    0035   53 Bitstring    1 SVGR2B5        byte 5
    0036   54 Bitstring    1 SVGR2B6        byte 6
    0037   55 Bitstring    1 SVGR2B7        byte 7
    0038   56 Dbl-Word     8 SVGR3 (0)      Caller's saved register 3
    0038   56 Signed       4 SVGR3HI        bytes 0-3
    003C   60 Signed       4 SVGR3LO        bytes 4-7
    0040   64 Dbl-Word     8 SVGR4 (0)      Caller's saved register 4
    0040   64 Signed       4 SVGR4HI        bytes 0-3
    0044   68 Signed       4 SVGR4LO        bytes 4-7
    0048   72 Dbl-Word     8 SVGR5 (0)      Caller's saved register 5
    0048   72 Signed       4 SVGR5HI        bytes 0-3
    004C   76 Signed       4 SVGR5LO        bytes 4-7
    0050   80 Dbl-Word     8 SVGR6 (0)      Caller's saved register 6
    0050   80 Signed       4 SVGR6HI        bytes 0-3
    0054   84 Signed       4 SVGR6LO        bytes 4-7
    0058   88 Dbl-Word     8 SVGR7 (0)      Caller's saved register 7
    0058   88 Signed       4 SVGR7HI        bytes 0-3
    005C   92 Signed       4 SVGR7LO        bytes 4-7
    0060   96 Dbl-Word     8 SVGR8 (0)      Caller's saved register 8
    0060   96 Signed       4 SVGR8HI        bytes 0-3
    0064  100 Signed       4 SVGR8LO        bytes 4-7
    0068  104 Dbl-Word     8 SVGR9 (0)      Caller's saved register 9
    0068  104 Signed       4 SVGR9HI        bytes 0-3
    006C  108 Signed       4 SVGR9LO        bytes 4-7
    0070  112 Dbl-Word     8 SVGR10 (0)     Caller's saved register 10
    0070  112 Signed       4 SVGR10HI       bytes 0-3
    0074  116 Signed       4 SVGR10LO       bytes 4-7
    0078  120 Dbl-Word     8 SVGR11 (0)     Caller's saved register 11
    0078  120 Signed       4 SVGR11HI       bytes 0-3
    007C  124 Signed       4 SVGR11LO       bytes 4-7
    0080  128 Bitstring   32 SVGRCF (0)     Caller's saved register 12-15
    0080  128 Dbl-Word     8 SVGR12 (0)     Caller's saved register 12
    0080  128 Signed       4 SVGR12HI       bytes 0-3
    0084  132 Signed       4 SVGR12LO       bytes 4-7
    0088  136 Dbl-Word     8 SVGR13 (0)     Caller's saved register 13
    0088  136 Signed       4 SVGR13HI       bytes 0-3
    008C  140 Signed       4 SVGR13LO       bytes 4-7
    0090  144 Dbl-Word     8 SVGR14 (0)     Caller's saved register 14
    0090  144 Signed       4 SVGR14HI       bytes 0-3
    0094  148 Signed       4 SVGR14LO       bytes 4-7
    0098  152 Dbl-Word     8 SVGR15 (0)     Caller's saved register 15
    0098  152 Signed       4 SVGR15HI       bytes 0-3
    009C  156 Signed       4 SVGR15LO       bytes 4-7
    00A0  160 Address      4 SVGOPNR        A(who set SVHOPEN)
    00A4  164 Signed       4 *              Reserved for IBM use
    00A8  168 Address      4 SVGAARP        A(AR sidecar) for PFX saveareas
    00AC  172 Bitstring    1 SVGIACA        Caller actual IAC
    00AD  173 Bitstring    1 SVGAMDE        Amode of callee at entry.
    00AE  174 Bitstring    1 SVGIACR        Caller "should be" IAC
    00AF  175 Bitstring    1 SVGIACE        Callee "should be" IAC
    00B0  176 Bitstring   80 SVGWRK (0)     Workarea for callee
    00B0  176 Dbl-Word     8 SVGWRK0 (0)
    00B0  176 Signed       4 SVGWRK0H
    00B4  180 Signed       4 SVGWRK0L
    00B8  184 Dbl-Word     8 SVGWRK1 (0)
    00B8  184 Signed       4 SVGWRK1H
    00BC  188 Signed       4 SVGWRK1L
    00C0  192 Dbl-Word     8 SVGWRK2 (0)
    00C0  192 Signed       4 SVGWRK2H
    00C4  196 Signed       4 SVGWRK2L
    00C8  200 Dbl-Word     8 SVGWRK3 (0)
    00C8  200 Signed       4 SVGWRK3H
    00CC  204 Signed       4 SVGWRK3L
    00D0  208 Dbl-Word     8 SVGWRK4 (0)
    00D0  208 Signed       4 SVGWRK4H
    00D4  212 Signed       4 SVGWRK4L
    00D8  216 Dbl-Word     8 SVGWRK5 (0)
    00D8  216 Signed       4 SVGWRK5H
    00DC  220 Signed       4 SVGWRK5L
    00E0  224 Dbl-Word     8 SVGWRK6 (0)
    00E0  224 Signed       4 SVGWRK6H
    00E4  228 Signed       4 SVGWRK6L
    00E8  232 Dbl-Word     8 SVGWRK7 (0)
    00E8  232 Signed       4 SVGWRK7H
    00EC  236 Signed       4 SVGWRK7L
    00F0  240 Dbl-Word     8 SVGWRK8 (0)
    00F0  240 Signed       4 SVGWRK8H
    00F4  244 Signed       4 SVGWRK8L
    00F8  248 Dbl-Word     8 SVGWRK9 (0)
    00F8  248 Signed       4 SVGWRK9H
    00FC  252 Signed       4 SVGWRK9L
    0100  256 Bitstring   64 SVGARS (0)     Access Registers
    0100  256 Signed       4 SVGAR0         AR0
    0104  260 Signed       4 SVGAR1         AR1
    0108  264 Signed       4 SVGAR2         AR2
    010C  268 Signed       4 SVGAR3         AR3
    0110  272 Signed       4 SVGAR4         AR4
    0114  276 Signed       4 SVGAR5         AR5
    0118  280 Signed       4 SVGAR6         AR6
    011C  284 Signed       4 SVGAR7         AR7
    0120  288 Signed       4 SVGAR8         AR8
    0124  292 Signed       4 SVGAR9         AR9
    0128  296 Signed       4 SVGAR10        AR10
    012C  300 Signed       4 SVGAR11        AR11
    0130  304 Signed       4 SVGAR12        AR12
    0134  308 Signed       4 SVGAR13        AR13
    0138  312 Signed       4 SVGAR14        AR14
    013C  316 Signed       4 SVGAR15        AR15
    0140  320 Signed       4 SVG2ARS (16)   AR storage for TmINT routines
    0180  384 Bitstring   44 SVGTSK (0)     Fields copied from TSKBK in 1 MVC
    0180  384 Bitstring    1 *              - TSKFLAGS
    0181  385 Bitstring    1 * (3)          - Reserved for IBM use
    0184  388 Signed       4 *              - TSKCR0SAV
    0188  392 Address      4 *              - TSKSPIEA
    018C  396 Bitstring    4 *              - TSKSPIEM
    0190  400 Dbl-Word     8 *              - Reserved for IBM use
    0198  408 Address      4 *              - TSKEXPIR
    019C  412 Address      4 *              - TSKSTERR
    01A0  416 Address      4 *              - TSKINVAD
    01A4  420 Signed       4 *              - Reserved for IBM use
    01A8  424 Bitstring    1 *              - TSKEVENT
    01A9  425 Bitstring    1 * (3)          - Reserved for IBM use
    01AC  428 Bitstring    1 * (84)         Reserved for future use
              00000200       SVG_END        * Byte after end of block
              00000040       SVGSIZE        (*-SVGBK+7)/8 Size in doublewords

#### SVGBK Storage Layout

    *** SVGBK - Linkage savearea, longreg format
    *
    *     +---------------------------+---------------------------+
    *   0 |         SVGFPNT           |         SVGBPNT           |
    *     +---------------------------+---------------------------+
    *   8 |         SVGSFQP           |         SVGCPRQ           |
    *     +------+------+------+------+---------------------------+
    *  10 |:SCHC |:CALC |SVGIAC|:FORM |         SVGRETN           |
    *     +------+------+------+------+---------------------------+
    *  18 |///////////////////////////////////////////////////////|
    *     +---------------------------+------+------+------+------+
    *  20 |         SVGR0HI           |:R0B4 |:R0B5 |:R0B6 |:R0B7 |
    *     +---------------------------+------+------+------+------+
    *  28 |         SVGR1HI           |:R1B4 |:R1B5 |:R1B6 |:R1B7 |
    *     +---------------------------+------+------+------+------+
    *  30 |         SVGR2HI           |:R2B4 |:R2B5 |:R2B6 |:R2B7 |
    *     +---------------------------+------+------+------+------+
    *  38 |         SVGR3HI           |         SVGR3LO           |
    *     +---------------------------+---------------------------+
    *  40 |         SVGR4HI           |         SVGR4LO           |
    *     +---------------------------+---------------------------+
    *  48 |         SVGR5HI           |         SVGR5LO           |
    *     +---------------------------+---------------------------+
    *  50 |         SVGR6HI           |         SVGR6LO           |
    *     +---------------------------+---------------------------+
    *  58 |         SVGR7HI           |         SVGR7LO           |
    *     +---------------------------+---------------------------+
    *  60 |         SVGR8HI           |         SVGR8LO           |
    *     +---------------------------+---------------------------+
    *  68 |         SVGR9HI           |         SVGR9LO           |
    *     +---------------------------+---------------------------+
    *  70 |         SVGR10HI          |         SVGR10LO          |
    *     +---------------------------+---------------------------+
    *  78 |         SVGR11HI          |         SVGR11LO          |
    *     +---------------------------+---------------------------+
    *  80 |         SVGR12HI          |         SVGR12LO          |
    *     +---------------------------+---------------------------+
    *  88 |         SVGR13HI          |         SVGR13LO          |
    *     +---------------------------+---------------------------+
    *  90 |         SVGR14HI          |         SVGR14LO          |
    *     +---------------------------+---------------------------+
    *  98 |         SVGR15HI          |         SVGR15LO          |
    *     +---------------------------+---------------------------+
    *  A0 |         SVGOPNR           |///////////////////////////|
    *     +---------------------------+------+------+------+------+
    *  A8 |         SVGAARP           |:IACA |:AMDE |:IACR |:IACE |
    *     +---------------------------+------+------+------+------+
    *  B0 |         SVGWRK0H          |         SVGWRK0L          |
    *     +---------------------------+---------------------------+
    *  B8 |         SVGWRK1H          |         SVGWRK1L          |
    *     +---------------------------+---------------------------+
    *  C0 |         SVGWRK2H          |         SVGWRK2L          |
    *     +---------------------------+---------------------------+
    *  C8 |         SVGWRK3H          |         SVGWRK3L          |
    *     +---------------------------+---------------------------+
    *  D0 |         SVGWRK4H          |         SVGWRK4L          |
    *     +---------------------------+---------------------------+
    *  D8 |         SVGWRK5H          |         SVGWRK5L          |
    *     +---------------------------+---------------------------+
    *  E0 |         SVGWRK6H          |         SVGWRK6L          |
    *     +---------------------------+---------------------------+
    *  E8 |         SVGWRK7H          |         SVGWRK7L          |
    *     +---------------------------+---------------------------+
    *  F0 |         SVGWRK8H          |         SVGWRK8L          |
    *     +---------------------------+---------------------------+
    *  F8 |         SVGWRK9H          |         SVGWRK9L          |
    *     +---------------------------+---------------------------+
    * 100 |          SVGAR0           |          SVGAR1           |
    *     +---------------------------+---------------------------+
    * 108 |          SVGAR2           |          SVGAR3           |
    *     +---------------------------+---------------------------+
    * 110 |          SVGAR4           |          SVGAR5           |
    *     +---------------------------+---------------------------+
    * 118 |          SVGAR6           |          SVGAR7           |
    *     +---------------------------+---------------------------+
    * 120 |          SVGAR8           |          SVGAR9           |
    *     +---------------------------+---------------------------+
    * 128 |         SVGAR10           |         SVGAR11           |
    *     +---------------------------+---------------------------+
    * 130 |         SVGAR12           |         SVGAR13           |
    *     +---------------------------+---------------------------+
    * 138 |         SVGAR14           |         SVGAR15           |
    *     +---------------------------+---------------------------+
    * 140 |                                                       |
    *     =                       SVG2ARS                         =
    *     |                                                       |
    *     +------+--------------------+---------------------------+
    * 180 |//////|////////////////////|///////////////////////////|
    *     +------+--------------------+---------------------------+
    * 188 |///////////////////////////|///////////////////////////|
    *     +---------------------------+---------------------------+
    * 190 |///////////////////////////////////////////////////////|
    *     +---------------------------+---------------------------+
    * 198 |///////////////////////////|///////////////////////////|
    *     +---------------------------+---------------------------+
    * 1A0 |///////////////////////////|///////////////////////////|
    *     +------+--------------------+---------------------------+
    * 1A8 |//////|////////////////////|///////////////////////////|
    *     +------+--------------------+///////////////////////////|
    * 1B0 |///////////////////////////////////////////////////////|
    *     =///////////////////////////////////////////////////////=
    *     |///////////////////////////////////////////////////////|
    *     +-------------------------------------------------------+
    * 200
    *
    *** SVGBK - Linkage savearea, longreg format

#### SVGBK Cross Reference

    Symbol         Dspl Value
    -------------- ---- -----
    SVG_END        01AC 00000200
    SVGAARP        00A8
    SVGAMDE        00AD
    SVGAREA        0020
    SVGARS         0100
    SVGAR0         0100
    SVGAR1         0104
    SVGAR10        0128
    SVGAR11        012C
    SVGAR12        0130
    SVGAR13        0134
    SVGAR14        0138
    SVGAR15        013C
    SVGAR2         0108
    SVGAR3         010C
    SVGAR4         0110
    SVGAR5         0114
    SVGAR6         0118
    SVGAR7         011C
    SVGAR8         0120
    SVGAR9         0124
    SVGBODY        0018
    SVGBPNT        0004
    SVGCALC        0011
    SVGCPRQ        000C
    SVGCREG        0013 40
    SVGCSAV        0011 20
    SVGDMCO        0010 01
    SVGFORM        0013
    SVGFPNT        0000
    SVGGET         0011 40
    SVGHEAD        0000
    SVGIAC         0012
    SVGIACA        00AC
    SVGIACE        00AF
    SVGIACR        00AE
    SVGNOFR        0010 80
    SVGOPNR        00A0
    SVGRCF         0080
    SVGREGF        0013 60
    SVGREGS        0020
    SVGRETN        0014
    SVGRG64        0013 20
    SVGRTNF        0010 10
    SVGR0          0020
    SVGR0B4        0024
    SVGR0B5        0025
    SVGR0B6        0026
    SVGR0B7        0027
    SVGR0HI        0020
    SVGR0LO        0024
    SVGR1          0028
    SVGR1B4        002C
    SVGR1B5        002D
    SVGR1B6        002E
    SVGR1B7        002F
    SVGR1HI        0028
    SVGR1LO        002C
    SVGR10         0070
    SVGR10HI       0070
    SVGR10LO       0074
    SVGR11         0078
    SVGR11HI       0078
    SVGR11LO       007C
    SVGR12         0080
    SVGR12HI       0080
    SVGR12LO       0084
    SVGR13         0088
    SVGR13HI       0088
    SVGR13LO       008C
    SVGR14         0090
    SVGR14HI       0090
    SVGR14LO       0094
    SVGR15         0098
    SVGR15HI       0098
    SVGR15LO       009C
    SVGR2          0030
    SVGR2B4        0034
    SVGR2B5        0035
    SVGR2B6        0036
    SVGR2B7        0037
    SVGR2HI        0030
    SVGR2LO        0034
    SVGR3          0038
    SVGR3HI        0038
    SVGR3LO        003C
    SVGR4          0040
    SVGR4HI        0040
    SVGR4LO        0044
    SVGR5          0048
    SVGR5HI        0048
    SVGR5LO        004C
    SVGR6          0050
    SVGR6HI        0050
    SVGR6LO        0054
    SVGR7          0058
    SVGR7HI        0058
    SVGR7LO        005C
    SVGR8          0060
    SVGR8HI        0060
    SVGR8LO        0064
    SVGR9          0068
    SVGR9HI        0068
    SVGR9LO        006C
    SVGSCHC        0010
    SVGSFQP        0008
    SVGSIZE        01AC 00000040
    SVGSKCL        0010 20
    SVGSKCR        0010 40
    SVGSTAM        0013 80
    SVGTSK         0180
    SVGUCFM        0010 08
    SVGURGT        0010 04
    SVGWRK         00B0
    SVGWRK0        00B0
    SVGWRK0H       00B0
    SVGWRK0L       00B4
    SVGWRK1        00B8
    SVGWRK1H       00B8
    SVGWRK1L       00BC
    SVGWRK2        00C0
    SVGWRK2H       00C0
    SVGWRK2L       00C4
    SVGWRK3        00C8
    SVGWRK3H       00C8
    SVGWRK3L       00CC
    SVGWRK4        00D0
    SVGWRK4H       00D0
    SVGWRK4L       00D4
    SVGWRK5        00D8
    SVGWRK5H       00D8
    SVGWRK5L       00DC
    SVGWRK6        00E0
    SVGWRK6H       00E0
    SVGWRK6L       00E4
    SVGWRK7        00E8
    SVGWRK7H       00E8
    SVGWRK7L       00EC
    SVGWRK8        00F0
    SVGWRK8H       00F0
    SVGWRK8L       00F4
    SVGWRK9        00F8
    SVGWRK9H       00F8
    SVGWRK9L       00FC
    SVG2ARS        0140
    SVHHF2W        0011 01
    SVHIS2W        0011 02
    SVHOPEN        0011 80
    SVHSVA         0011 04

This information is based on z/VM V6R1.0. Last updated on 18 Feb 2010 at 09:13:40 EDT.
Copyright IBM Corporation, 1990, 2008