AvlZn DSECT
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Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      AvlZn          Available List Zone
0000    0 Unknown      1 AvlCach0 (256) Cache line 0
0100  256 Unknown      1 AvlCach1 (768) Cache line 1-3 Contigs control
0400 1024 Unknown      1 AvlCach4 (768) Cache line 4-6 Singles control
0700 1792 Unknown      1 AvlCach7 (256) Cache line 7
          00000800       AvlZnSz        *-AvlZn Size of AvlZn in bytes
          00000100       AvlSizedw      (*-AvlZn+7)/8 Size of AvlZn in
                                        d-words
          00000800       AvlZnNxt       * Next AvlZn if in the same page
      The size of the AvlZn is checked here, so it will be
      verified wherever the AvlZn is used.
      The size of the AvlZn is also checked in HCPISM, where
      the AvlZn is carved from a page gotten by HCPGETST.
      The maximum number of zones B2G and A2G, useful for
      allocating arrays and things.
          00000050       AvlZnsB2G      MAXRPROC Max number of B2G zones
          00000400       AvlZnsA2G      1024 Max number of A2G zones
      Cache line 0
0000    0 Bitstring    1 AvlFlag0       Flag0 Must be same offset as
                                        anoFlag0 (Maintain
                                        MTRAZN_AvlFlag0, STOAZN_AvlFlag0)
          00000080       IsAnode        x'80' Off in AvlZns. (See
                                        anoAnode).
          00000040       ToTheLeft      x'40' Node or Zone, to the left.
          000000C0       AvlFlag0React  IsAnode+ToTheLeft Cleared when
                                        reactivated. IsAnode Will not be
                                        on anyway. ToTheLeft Will be
                                        re-set if so.
0001    1 Bitstring    1 AvlFlag1       Flag1 (Description) (Maintain
                                        MTRAZN_AvlFlag1, STOAZN_AvlFlag1)
          1... ....      AvlIsA2G       X'80' Zone holds frames >2G
          .1.. ....      IsStatic       X'40' Is in HCPRSM, not Free
                                        storage.
          00000020       AvlIsRecon     x'20' AvlZn is a reconfigurable
                                        zone. (May be vacated by SET
                                        STORE.) This bit may go off
                                        unserialized In the DSRBase AvlZn
                                        it is serialized under the lock.
                                        But in subsequent AvlZns (to the
                                        base) it can go off without the
                                        lock held (specifically during a
                                        conversion to permanent).
          00000000       AvlIsPerm      x'00' AvlZn is a permanent zone.
                                        AvlIsPerm is essentially just
                                        "not AvlIsRecon". ALL testing to
                                        distinguish PERM vs RECONFIG
                                        should test AvlIsRecon. Do not
                                        use AvlIsPerm.
          ...1 ....      AvlIsDSRBase   X'10' This AvlZn is the first of
                                        a group of zones that make up one
                                        DSR unit. Only on for zones with
                                        AvlIsRecon on.
          .... 1...      AvlR2PPending  X'08' A change from
                                        reconfigurable to Permanent is
                                        pending.
          00000004       AvlDummy       x'04' This is a dummy AvlZn which
                                        is just an anchor. (see
                                        AvlNoAlloc).
          0000007C       AvlFlag1React  IsStatic+AvlIsRecon+AvlIsDSRBase+
                                        AvlR2PPending+AvlDu mmy Bits
                                        cleared during reactivation.
                                        IsStatic Won't be on anyway.
                                        AvlIsRecon Will be re-set as
                                        needed. AvlIsDSRBase Will be
                                        re-set as needed. AvlR2PPending
                                        Won't be on anyway. AvlDummy
                                        Won't be on anyway.
0002    2 Bitstring    1 AvlNoAlloc     Reasons not to allocate from this
                                        available zone. If any of this
                                        byte's bits is on, frames must
                                        not be removed from this zone.
                                        Any logic that transitions
                                        AvlNoAlloc from non-zero to zero
                                        must call HCPISMZO. nb: When
                                        AvlDeactive is found ON, all
                                        other bits should be ignored, and
                                        should have been turned off.
                                        (Maintain MTRAZN_AvlNoAlloc,
                                        STOAZN_AvlNoAlloc)
          1... ....      AvlVacating    X'80' The zone is in the process
                                        of being vacated.
          ...1 ....      AvlDeactive    X'10' The zone was vacated, and
                                        has not been re-activated yet.
                                        vlDummy EQU x'04' This is a dummy
                                        AvlZn which is just an anchor.
                                        (Defined in AvlFlag1).
          .... ..1.      AvlEmpty       X'02' No frames have ever been
                                        available in this zone. nb: This
                                        is not an indicator that the zone
                                        has been depleted of frames.
                                        Looking for AvlNoAllocReact? See
                                        HCPISM:ClrAvlZn
0003    3 Bitstring    1 AvlDSRFlag     A flag for DSR status.
          1... ....      AvlBeenTried   X'80' AvlBeenTried This DSRU-zone
                                        has already been selected for
                                        vacating and failed at least once
                                        during this DMD.
          1... ....      AvlDSRFlagReact
                                        AvlBeenTried AvlDSRFlagReact
                                        Cleared during reactiv
                                        AvlBeenTried Re-set as needed.
0004    4 Bitstring    1 AvlConvertReason
                                        Reason code this zone was
                                        converted from a reconfigurable
                                        zone to a permanent zone.
          .... ...1      AvlPermNeed    X'01' A frame was requested that
                                        had a usage code requiring a
                                        frame from permanent storage. One
                                        was not found after an exhaustive
                                        search.
          .... ..1.      AvlContigNeed  X'02' Contiguous frames were
                                        requested and could not be found
                                        after an exhaustive search.
          .... ..11      AvlPinNeed     X'03' A pin occurred that
                                        required a permanent frame. One
                                        was not found after an exhaustive
                                        search.
0005    5 Bitstring    1 AvlFlag2       Initialization / status flags.
          1... ....      AvlOFB         x'80' AvlOFB AvlZn is open for
                                        business.
          .1.. ....      AvlMetaDone    x'40' AvlMetaDone AvlMetaFrames
                                        has been set
          .... 1...      AvlInArray     x'08' AvlInArray Zone has been
                                        placed in the zone array. (Never
                                        removed.)
          .... .1..      AvlInTree      x'04' AvlInTree Zone has been
                                        placed in the zone tree. (Removed
                                        when vacated, or temporarily for
                                        conversion.)
          .... ..1.      AvlInRings     X'02' AvlInRings Zone has been
                                        placed in the rings (Removed when
                                        vacated, or temporarily for
                                        conversion.)
          .... ...1      AvlIZ          x'01' AvlIZ HCPISGIZ has been
                                        called.
          11.. .111      AvlFlag2React  AvlOFB+AvlMetaDone+AvlInTree+AvlI
                                        nRings+AvlIZ AvlFla AvlOFB Will
                                        be re-set as needed. AvlMetaDone
                                        Will be re-set as needed.
                                        AvlInTree Won't be on anyway.
                                        AvlInRings Won't be on anyway.
                                        AvlIZ Will be re-set as needed.
0006    6 Bitstring    1 * (2)          Reserved for IBM use.
0008    8 Signed       2 AvlIndex       Index into AvlZn arrays:
                                        RSAUGALSa2g/RSAUGALSb2g
000A   10 Signed       2 AvlRF          Repetition factor. Number of
                                        times to use this zone before
                                        moving on. A power of 2 depending
                                        on the ratio of the sizes of
                                        zones <2G to >2G and the
                                        AvlRFShift factor. Set in
                                        PLSAvlUi after obtaining the
                                        lock. PLSAvlUi counts down for
                                        reuse. Zero, or negative in
                                        PLSAvlUi means reset.
          00000008       AvlRFShift     8 Arbitrary number to shift RF to
                                        increase usage.
000C   12 Signed       4 *              Reserved for IBM use. The
                                        following fields are for the
                                        queuing and management of
                                        multiple available zones.
                                 See Serialization regarding Avl_P
      All references to AvlFPx/AvlBPx are indexed, meaning they
      should be of form.
             LLGF  AvlFPx(Rn)    Where Rn=Avlx1, Avlx2, ... etc.
      or
             LLGF  AvlFPx+Avlxn
      See prolog for details, must not be followed from Array.
0010   16 Address      4 AvlFPx         Forward pointer. Circular. Index
0014   20 Address      4 AvlBPx         Back pointer. Circular.
0018   24 Address      4 *              Forward pointer. Circular. Index
001C   28 Address      4 *              Back pointer. Circular.
0020   32 Address      4 *              Forward pointer. Circular. Index
0024   36 Address      4 *              Back pointer. Circular.
0028   40 Address      4 *              Forward pointer. Circular. Index
002C   44 Address      4 *              Back pointer. Circular.
0030   48 Address      4 *              Forward pointer. Circular. Index
0034   52 Address      4 *              Back pointer. Circular.
0038   56 Address      4 *              Forward pointer. Circular. Index
003C   60 Address      4 *              Back pointer. Circular.
0040   64 Address      4 *              Forward pointer. Circular. Index
0044   68 Address      4 *              Back pointer. Circular.
0048   72 Signed       4 *              Reserved for IBM use.
004C   76 Address      4 AvlBase        A(base AvlZn) If AvlIsRecon Valid
                                        in the base also (points to
                                        self.) For the differences
                                        between AvlLow:High, AvlStart:End
                                        and AvlInlo:inHi see general
                                        comments in the prolog.
0050   80 Address      8 AvlLow         First FRMTE address that belongs.
0058   88 Address      8 AvlHigh        Last FRMTE address that belongs.
0060   96 Address      8 AvlStart       Frame Table Scan Start
0068  104 Address      8 AvlEnd         Frame Table Scan End
0070  112 Address      8 AvlInLo        Frame Table Initialization Low
0078  120 Address      8 AvlInHi        Frame Table Initialization High
0080  128 Character    8 AvlCID         8 Character identifier. (Used for
                                        monitor records and RAS.) Ensure
                                        AvlZnLck is d-word aligned. XL()
                                        is used so HCPISM FFMask macro
                                        has a true length. Unfortunately,
                                        XL() ruins alignment enforcement.
0088  136 Bitstring   48 AvlZnLck       AvlZnLck Locks both the AvlListC
                                        and the AvlListS lists. This lock
                                        is obtained & released via macros
                                        HCPLKAV and HCPULAV.
00B8  184 Signed       8 AvlVacateFailed
                                        Number of times an attempt was
                                        made to vacate this AvlZn without
                                        success. Does not include cancel
                                        requests due to paging threshold
                                        or by user request. Cleared when
                                        zone reactivated.
00C0  192 Signed       8 AvlMetaFrames  Number of FRMCP-type frames
                                        allocated to support memory
                                        structures. In a permanent zone
                                        these are permanently allocated
                                        and may be used to support any
                                        permanent memory. In a
                                        reconfigurable zone, they are
                                        specifically allocated to support
                                        the DSR-Unit only and can be
                                        reclaimed when the DSR-unit is
                                        vacated, and unassigned. Be
                                        aware, this field is important to
                                        reconfigurable zones and is
                                        accurate, in permanent zones less
                                        than IPLPERM this count may not
                                        be accurate. (HCPISM)
00C8  200 Address      4 AvlVCZBK       Pointer to vacate zone block
                                        should only be NON-ZERO when
                                        AvlVacating is on.
00CC  204 Signed       4 AvlVacDiscPerm Count of permanent FRMTEs the
                                        vacator discovered attempting to
                                        vacate this zone.
00D0  208 Signed       8 AvlCreateTime  TOD clock at activation time.
00D8  216 Signed       8 AvlInIncrTB    Address Increment number for the
                                        last successful Test Block for
                                        AvlInLo:Hi. Initial value is
                                        zero.
00E0  224 Signed       8 *              Reserved for IBM
00E8  232 Signed       8 *              Reserved for IBM
00F0  240 Signed       8 *              Reserved for IBM
      Positioning the eye catcher at the end of cache line 0
00F8  248 Character    8 AvlEye         Eye catcher
      Cache lines 1-3
0100  256 Signed       8 AvlListC (93)  Contigs list anchor.
      Cache lines 4-6
0400 1024 Signed       8 AvlListS (93)  Singles list anchor.
      Cache line  7
      The next CKMAINTs ensure that certain fields are
      on a quadword boundary.  Note, this only works because
      we know that the AvlZn is on a cache line boundary.
      QuadWord alignment is required to update two Dwords
      with a single CDSG.
      Verify that we are at qword alignment.
0700 1792 Address      8 AvlZnRetSingStk
                                        Return stack of singles. Points
                                        to FRMTE chain. Empty = StgEOQ.
                                        Forward pointer chained.
                                        Terminator = StgEOQ.
0708 1800 Signed       8 AvlZnRetSingCnt
                                        Return stack singles count. Empty
                                        = 0 Verify that we are at qword
                                        alignment.
0710 1808 Address      8 AvlZnRetContStk
                                        Return stack of contigs. Points
                                        to FRMTE chain. Empty = StgEOQ.
                                        Forward pointer chained.
                                        Terminator = StgEOQ.
0718 1816 Signed       8 AvlZnRetContCnt
                                        Return stack contigs count. Empty
                                        = 0
0720 1824 Signed       8 AvlNotiCnt     Count of not initialized FRMTEs.
                                        These FRMTEs may be initialized
                                        and added to the available lists
                                        by memory initialization. (On
                                        demand or Lazy.) Typically should
                                        be considered "available" for
                                        contigs request as they are
                                        likely contiguous. However, until
                                        fully initialized, there is no
                                        guarantee as there may be some in
                                        error.
      These counts are updated just before the lock is
      released.  However, it would be possible, though
      unlikely that the stacked counts AvlZnRetSingCnt
      and AvlZnRetContCnt are not accurately included
      due to timing.  This is why HCPPTGFZ does it own
      calculations and does not simply use these counts.
0728 1832 Dbl-Word     8 AvlOldCounts (0)
                                        Beginning of the old counts.
0728 1832 Signed       8 AvlContigsOldCnt
                                        The count of frames on this zone
                                        available for a contigs request
                                        at the time the lock was last
                                        released.
0730 1840 Signed       8 AvlUPSinglesOldCnt
                                        The count of frames on this zone
                                        available for a fully authorized
                                        (Auth2T and AuthC) singles
                                        request at the time the lock was
                                        last released.
0738 1848 Signed       8 AvlPSinglesOldCnt
                                        The count of frames on this zone
                                        available for a minimally
                                        authorized (^Auth2T and ^AuthC)
                                        singles request at the time the
                                        lock was last released.
0740 1856 Address      4 *              Reserved for IBM
0744 1860 Signed       4 AVLTACPT       Local copy of TACPT/(number of
                                        active zones.)
0748 1864 Signed       4 AVLT2SPT       Local copy of T2SPT/(number of
                                        active zones.)
074C 1868 Address      4 AvlParent      Address of parent Anode.
0750 1872 Signed       8 AvlOfflineECnt Count of offline frames due to
                                        error, not due to holes. This
                                        count may not be accurately
                                        maintained during initial system
                                        memory initialization.
0758 1880 Signed       8 AvlOfflineCCnt Count of offline frames due to
                                        holes in memory. This count may
                                        not be accurately maintained
                                        during initial system memory
                                        initialization.
0760 1888 Signed       8 * (20)         Reserved, to end of Cache line
      End of the AvlZn
      Define a local DSECT that maps a UGAL anchor.
      This facilitates logic when manipulating the lists.


 AvlListAnc DSECT
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Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      AvlListAnc     Available List Zone
0000    0 Address      8 AvlListFP      Forward pointer. Points to self
                                        when empty.
0008    8 Address      8 AvlListBP      Backward pointer. Points to
                                        forward pointer when empty.
0010   16 Signed       8 AvlListCnt     Count of FRMTEs on the list. Zero
                                        when empty.
0018   24 Signed       8 AvlListMIReq   MI Count of requests.
0020   32 Signed       8 AvlListMIRet   MI Count of returns.
0028   40 Signed       8 AvlListMIRep   MI Count of replenishes
0030   48 Signed       8 AvlListMIOF    MI Count of FRMTES orphaned from
0038   56 Signed       8 AvlListMIOT    MI Count of FRMTES orphaned to
0040   64 Signed       8 AvlListMIBPT   MI Count of FRMTEs back pocketed.
                                        (Usually to swap to make
                                        contigs.)
0048   72 Signed       8 AvlListMIBPR   MI Count of FRMTEs "returned"
                                        that were in a back pocket.
                                        (Usually to swap to make
                                        contigs.)
0050   80 Signed       8 *              Reserved for IBM use.
0058   88 Signed       4 AvlListLWM     Low water mark of count. Reset by
                                        threshold manager.
005C   92 Signed       4 * (0)          Serialized word. (Serialized by
                                        AvlZnLck.)
005C   92 Bitstring    1 *              Reserved for IBM use.
005D   93 Bitstring    1 *              Reserved for IBM use.
005E   94 Bitstring    1 AvlListCH      Count high by this much.
005F   95 Bitstring    1 *              Reserved for IBM use
0060   96 Signed       8 AvlHistMIReq   Historical Count of requests.
0068  104 Signed       8 AvlHistMIRet   Historical Count of returns.
0070  112 Signed       4 *              Reserved for IBM use.
0074  116 Signed       4 *              Reserved for IBM use.
0078  120 Signed       4 *              Reserved for IBM use.
007C  124 Signed       4 *              Reserved for IBM use.
0080  128 Bitstring    1 AvlListDsc     Description flag (Never changes
                                        once set.) IsA2G EQU X'80' Anchor
                                        holds frames >2G
          .1.. ....      AvlIsContig    X'40' Anchor holds contigs
0081  129 Bitstring    1 *              Reserved for IBM use.
0082  130 Bitstring    1 *              Reserved for IBM use.
0083  131 Bitstring    1 *              Reserved for IBM use.
0084  132 Address      4 *              Reserved for IBM use.
0088  136 Signed       8 AvlListDbg     A debug field.
0090  144 Signed       8 AvlSTQstats (15)
                                        Stats for requests.
0108  264 Signed       8 AvlSTTstats (15)
                                        Stats for returns.
0180  384 Signed       8 AvlSTPstats (15)
                                        Stats for replenishment
01F8  504 Signed       8 AvlSTOTstats (15)
                                        Stats for Orphan To
0270  624 Signed       8 AvlSTOFstats (2)
                                        Stats for Orphan From
          000002E8       AvlListAncBS   *-AvlListAnc Byte size.
          0000005D       AvlListAncDW   (AvlListAncBS+7)/8 Double word
                                        size.
      Define a local DSECT that maps the stats in the available
      lists.
      Notes      : This DSECT is used significantly in macros.  For
      this reason, they do HCPUSINGs.  If an HCPUSING is used
      in code, it should not be done over associated macros.
      Serialization.   Some fields are serialized by the
      Available zone lock (ALL) and some fields are serialized
      by the RSAALUST TS lock (ALU).

          
*** AvlZn - Available List Zone
*
*     +-------------------------------------------------------+
*   0 |                                                       |
*     =                       AVLCACH0                        =
*     |                                                       |
*     +-------------------------------------------------------+
* 100 |                                                       |
*     =                       AVLCACH1                        =
*     |                                                       |
*     +-------------------------------------------------------+
* 400 |                                                       |
*     =                       AVLCACH4                        =
*     |                                                       |
*     +-------------------------------------------------------+
* 700 |                                                       |
*     =                       AVLCACH7                        =
*     |                                                       |
*     +-------------------------------------------------------+
* 800
*
*** AvlZn - Available List Zone
          
*** Overlay for AvlCach0 in AvlZn
*
*     +------+------+------+------+------+------+-------------+
*   0 |:FLAG0|:FLAG1|(002) |(003) |(004) |:FLAG2|/////////////|
*     +------+------+------+------+------+------+-------------+
*   8 |  AVLINDEX   |   AVLRF     |///////////////////////////|
*     +-------------+-------------+---------------------------+
*  10 |          AVLFPX           |          AVLBPX           |
*     +---------------------------+---------------------------+
*  18 |///////////////////////////|///////////////////////////|
*     +---------------------------+---------------------------+
*  20 |///////////////////////////|///////////////////////////|
*     +---------------------------+---------------------------+
*  28 |///////////////////////////|///////////////////////////|
*     +---------------------------+---------------------------+
*  30 |///////////////////////////|///////////////////////////|
*     +---------------------------+---------------------------+
*  38 |///////////////////////////|///////////////////////////|
*     +---------------------------+---------------------------+
*  40 |///////////////////////////|///////////////////////////|
*     +---------------------------+---------------------------+
*  48 |///////////////////////////|         AVLBASE           |
*     +---------------------------+---------------------------+
*  50 |                        AVLLOW                         |
*     +-------------------------------------------------------+
*  58 |                       AVLHIGH                         |
*     +-------------------------------------------------------+
*  60 |                       AVLSTART                        |
*     +-------------------------------------------------------+
*  68 |                        AVLEND                         |
*     +-------------------------------------------------------+
*  70 |                       AVLINLO                         |
*     +-------------------------------------------------------+
*  78 |                       AVLINHI                         |
*     +-------------------------------------------------------+
*  80 |                        AVLCID                         |
*     +-------------------------------------------------------+
*  88 |                                                       |
*     =                       AVLZNLCK                        =
*     |                                                       |
*     +-------------------------------------------------------+
*  B8 |                   AVLVACATEFAILED                     |
*     +-------------------------------------------------------+
*  C0 |                    AVLMETAFRAMES                      |
*     +---------------------------+---------------------------+
*  C8 |         AVLVCZBK          |      AVLVACDISCPERM       |
*     +---------------------------+---------------------------+
*  D0 |                    AVLCREATETIME                      |
*     +-------------------------------------------------------+
*  D8 |                     AVLININCRTB                       |
*     +-------------------------------------------------------+
*  E0 |///////////////////////////////////////////////////////|
*     +-------------------------------------------------------+
*  E8 |///////////////////////////////////////////////////////|
*     +-------------------------------------------------------+
*  F0 |///////////////////////////////////////////////////////|
*     +-------------------------------------------------------+
*  F8 |                        AVLEYE                         |
*     +-------------------------------------------------------+
* 100
*
*** Overlay for AvlCach0 in AvlZn
          
*** Overlay for AvlCach1 in AvlZn
*
*     +-------------------------------------------------------+
* 100 |                                                       |
*     =                       AVLLISTC                        =
*     |                                                       |
*     +-------------------------------------------------------+
* 3E8
*
*** Overlay for AvlCach1 in AvlZn
          
*** Overlay for AvlCach4 in AvlZn
*
*     +-------------------------------------------------------+
* 400 |                                                       |
*     =                       AVLLISTS                        =
*     |                                                       |
*     +-------------------------------------------------------+
* 6E8
*
*** Overlay for AvlCach4 in AvlZn
          
*** Overlay for AvlCach7 in AvlZn
*
*     +-------------------------------------------------------+
* 700 |                   AVLZNRETSINGSTK                     |
*     +-------------------------------------------------------+
* 708 |                   AVLZNRETSINGCNT                     |
*     +-------------------------------------------------------+
* 710 |                   AVLZNRETCONTSTK                     |
*     +-------------------------------------------------------+
* 718 |                   AVLZNRETCONTCNT                     |
*     +-------------------------------------------------------+
* 720 |                      AVLNOTICNT                       |
*     +-------------------------------------------------------+
* 728 |                   AVLCONTIGSOLDCNT                    |
*     +-------------------------------------------------------+
* 730 |                  AVLUPSINGLESOLDCNT                   |
*     +-------------------------------------------------------+
* 738 |                  AVLPSINGLESOLDCNT                    |
*     +---------------------------+---------------------------+
* 740 |///////////////////////////|         AVLTACPT          |
*     +---------------------------+---------------------------+
* 748 |         AVLT2SPT          |        AVLPARENT          |
*     +---------------------------+---------------------------+
* 750 |                    AVLOFFLINEECNT                     |
*     +-------------------------------------------------------+
* 758 |                    AVLOFFLINECCNT                     |
*     +-------------------------------------------------------+
* 760 |///////////////////////////////////////////////////////|
*     =///////////////////////////////////////////////////////=
*     |///////////////////////////////////////////////////////|
*     +-------------------------------------------------------+
* 800
*
*** Overlay for AvlCach7 in AvlZn
          
*** AvlListAnc - Available List Zone
*
*     +-------------------------------------------------------+
*   0 |                      AVLLISTFP                        |
*     +-------------------------------------------------------+
*   8 |                      AVLLISTBP                        |
*     +-------------------------------------------------------+
*  10 |                      AVLLISTCNT                       |
*     +-------------------------------------------------------+
*  18 |                     AVLLISTMIREQ                      |
*     +-------------------------------------------------------+
*  20 |                     AVLLISTMIRET                      |
*     +-------------------------------------------------------+
*  28 |                     AVLLISTMIREP                      |
*     +-------------------------------------------------------+
*  30 |                     AVLLISTMIOF                       |
*     +-------------------------------------------------------+
*  38 |                     AVLLISTMIOT                       |
*     +-------------------------------------------------------+
*  40 |                     AVLLISTMIBPT                      |
*     +-------------------------------------------------------+
*  48 |                     AVLLISTMIBPR                      |
*     +-------------------------------------------------------+
*  50 |///////////////////////////////////////////////////////|
*     +---------------------------+------+------+------+------+
*  58 |        AVLLISTLWM         |//////|//////|(05E) |//////|
*     +---------------------------+------+------+------+------+
*  60 |                     AVLHISTMIREQ                      |
*     +-------------------------------------------------------+
*  68 |                     AVLHISTMIRET                      |
*     +---------------------------+---------------------------+
*  70 |///////////////////////////|///////////////////////////|
*     +---------------------------+---------------------------+
*  78 |///////////////////////////|///////////////////////////|
*     +------+------+------+------+---------------------------+
*  80 |(080) |//////|//////|//////|///////////////////////////|
*     +------+------+------+------+---------------------------+
*  88 |                      AVLLISTDBG                       |
*     +-------------------------------------------------------+
*  90 |                                                       |
*     =                     AVLSTQSTATS                       =
*     |                                                       |
*     +-------------------------------------------------------+
* 108 |                                                       |
*     =                     AVLSTTSTATS                       =
*     |                                                       |
*     +-------------------------------------------------------+
* 180 |                                                       |
*     =                     AVLSTPSTATS                       =
*     |                                                       |
*     +-------------------------------------------------------+
* 1F8 |                                                       |
*     =                     AVLSTOTSTATS                      =
*     |                                                       |
*     +-------------------------------------------------------+
* 270 |                     AVLSTOFSTATS                      |
*     |                                                       |
*     +-------------------------------------------------------+
* 280
*
*** AvlListAnc - Available List Zone

 
Symbol         Dspl Value
-------------- ---- -----
AvlBase        004C
AvlBeenTried   0003 80
AvlBPx         0014
AvlCach0       0000
AvlCach1       0100
AvlCach4       0400
AvlCach7       0700
AvlContigsOldCnt
               0728
AvlContigNeed  0004 02
AvlConvertReason
               0004
AvlCreateTime  00D0
AvlCID         0080
AvlDeactive    0002 10
AvlDummy       0001 00000004
AvlDSRFlag     0003
AvlDSRFlagReact
               0003 80
AvlEmpty       0002 02
AvlEnd         0068
AvlEye         00F8
AvlFlag0       0000
AvlFlag0React  0000 000000C0
AvlFlag1       0001
AvlFlag1React  0001 0000007C
AvlFlag2       0005
AvlFlag2React  0005 C7
AvlFPx         0010
AvlHigh        0058
AvlHistMIReq   0060
AvlHistMIRet   0068
AvlIndex       0008
AvlInArray     0005 08
AvlInHi        0078
AvlInIncrTB    00D8
AvlInLo        0070
AvlInRings     0005 02
AvlInTree      0005 04
AvlIsA2G       0001 80
AvlIsContig    0080 40
AvlIsDSRBase   0001 10
AvlIsPerm      0001 00000000
AvlIsRecon     0001 00000020
AvlIZ          0005 01
AvlListAncBS   0270 000002E8
AvlListAncDW   0270 0000005D
AvlListBP      0008
AvlListC       0100
AvlListCnt     0010
AvlListCH      005E
AvlListDbg     0088
AvlListDsc     0080
AvlListFP      0000
AvlListLWM     0058
AvlListMIBPR   0048
AvlListMIBPT   0040
AvlListMIOF    0030
AvlListMIOT    0038
AvlListMIRep   0028
AvlListMIReq   0018
AvlListMIRet   0020
AvlListS       0400
AvlLow         0050
AvlMetaDone    0005 40
AvlMetaFrames  00C0
AvlNotiCnt     0720
AvlNoAlloc     0002
AvlOfflineCCnt
               0758
AvlOfflineECnt
               0750
AvlOldCounts   0728
AvlOFB         0005 80
AvlParent      074C
AvlPermNeed    0004 01
AvlPinNeed     0004 03
AvlPSinglesOldCnt
               0738
AvlRF          000A
AvlRFShift     000A 00000008
AvlR2PPending  0001 08
AvlSizedw      0700 00000100
AvlStart       0060
AvlSTOFstats   0270
AvlSTOTstats   01F8
AvlSTPstats    0180
AvlSTQstats    0090
AvlSTTstats    0108
AvlUPSinglesOldCnt
               0730
AvlVacateFailed
               00B8
AvlVacating    0002 80
AvlVacDiscPerm
               00CC
AvlVCZBK       00C8
AvlZnsA2G      0700 00000400
AvlZnsB2G      0700 00000050
AvlZnLck       0088
AvlZnNxt       0700 00000800
AvlZnRetContCnt
               0718
AvlZnRetContStk
               0710
AvlZnRetSingCnt
               0708
AvlZnRetSingStk
               0700
AvlZnSz        0700 00000800
AVLTACPT       0744
AVLT2SPT       0748
IsAnode        0000 00000080
IsStatic       0001 40
ToTheLeft      0000 00000040