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

#### FASBK

Prolog

Control Block Contents
FASBK DSECT

Storage Layout

Cross Reference (Contains links to field and bit definitions)

#### FASBK Prolog

     NAME       : HCPFASBK
     DESCRIPTION: VMDUMP File Address Space Information
     COPYRIGHT -  This Module is "RESTRICTED MATERIALS OF IBM"
                  5654-A17 (C) COPYRIGHT IBM CORP. - 2001
                  LICENSED MATERIALS - PROPERTY OF IBM
     DSECT      : FASBK
     FUNCTION   : Contains information about the VMDUMP file
                  that is unique for each address space
                  in the dump
     LOCATED BY : VDUFASBK
                  FASNEXT
     CREATED BY : HCPVMBLK
     DELETED BY : HCPVCCLN
     REFERENCES : None
     COMMENTS   : obtained from free storage

#### FASBK Control Block Content

#### FASBK DSECT

    Hex   Dec Type/Val   Lng Label (dup)    Comments
    ---- ---- --------- ---- -------------- --------
    0000    0 Structure      FASBK          VMDUMP File Address Space
                                            Information
    0000    0 Character    8 FASIASIT       Address space identification
                                            token (iASIT)
    0008    8 Character    8 FASEASIT       eASIT
    0010   16 Character  100 FASDUMID       Dump identifier for this address
                                            space
    0074  116 Character    8 FASFORMT       Format of this address space
    007C  124 Bitstring    1 FASFLAGS       Parsing flags
              1... ....      FASFORM        X'80' 'Format' was specified
              .1.. ....      FASDCSS        X'40' 'DCSS' was specified
              ..1. ....      FASDMPID       X'20' Dumpid was specified
              ...1 ....      FASDCSSF       X'10' DCSS's found to dump
              .... 1...      FAS1451        X'08' This address space was
                                            already found to be inaccessible.
                                            Msg 1451I was already issued.
    007D  125 Bitstring    1 FASFLAG2       2nd General flag byte
              1... ....      FASNOMRG       X'80' Don't merge the local and
                                            global bitmaps
    007E  126 Character    2 *              Reserved for IBM use
    0080  128 Address      4 FASNEXT        Address of next FASBK
    0084  132 Address      4 FASDCSSP       Address of DSLs for DCSS list
    0088  136 Address      4 FASDEFP        Pointer to DSLBKs that map
                                            defined (configured) storage.
    008C  140 Address      4 FASSTOR        Pointer to DSLBKs that map all of
                                            storage
    0090  144 Signed       4 FASDCSHI       Byte address past highest DCSS
                                            address
    0094  148 Signed       4 FASB2GDF       Byte address past highest defined
                                            (configured) storage address that
                                            is less than 2Gig
    0098  152 Signed       4 FASB2GHI       Byte address past highest address
                                            that is below 2Gig (MAX of
                                            FASNODSS and ASDDCSSZ)
    009C  156 Signed       4 *              Reserved for IBM use
    00A0  160 Dbl-Word     8 FASHI          Highest byte in address space
    00A8  168 Address      4 FASGPAGM       Pointer to global bit map
    00AC  172 Address      4 FASLPAGM       Pointer to local bit map
    00B0  176 Signed       4 FASASIBK       Record number of ASIBK for this
                                            address space in SDF
    00B4  180 Address      4 FASASIWK       Pointer to working copy of ASIBK
    00B8  184 Signed       2 FASCOUNT       Number of sets of dumped storage
                                            for this address space in dump
    00BA  186 Signed       2 *              Reserved for IBM use
    00BC  188 Signed       4 * (4)          Reserved for IBM use
    00CC  204 Bitstring    1 FAS$END (0)    Defines end of control blk

#### FASBK Storage Layout

    *** FASBK - VMDUMP File Address Space Information
    *
    *     +-------------------------------------------------------+
    *   0 |                       FASIASIT                        |
    *     +-------------------------------------------------------+
    *   8 |                       FASEASIT                        |
    *     +-------------------------------------------------------+
    *  10 |                                                       |
    *     =                       FASDUMID                        =
    *     |                           +---------------------------+
    *     |                           |        FASFORMT-          |
    *     +---------------------------+------+------+-------------+
    *  78 |          -(074)           |:FLAGS|:FLAG2|/////////////|
    *     +---------------------------+------+------+-------------+
    *  80 |         FASNEXT           |         FASDCSSP          |
    *     +---------------------------+---------------------------+
    *  88 |         FASDEFP           |         FASSTOR           |
    *     +---------------------------+---------------------------+
    *  90 |         FASDCSHI          |         FASB2GDF          |
    *     +---------------------------+---------------------------+
    *  98 |         FASB2GHI          |///////////////////////////|
    *     +---------------------------+---------------------------+
    *  A0 |                        FASHI                          |
    *     +---------------------------+---------------------------+
    *  A8 |         FASGPAGM          |         FASLPAGM          |
    *     +---------------------------+---------------------------+
    *  B0 |         FASASIBK          |         FASASIWK          |
    *     +-------------+-------------+---------------------------+
    *  B8 |  FASCOUNT   |/////////////|///////////////////////////|
    *     +-------------+-------------+///////////////////////////|
    *     |///////////////////////////////////////////////////////|
    *     |///////////////////////////+---------------------------+
    *     |///////////////////////////|
    *     +---------------------------+
    *
    *** FASBK - VMDUMP File Address Space Information

#### FASBK Cross Reference

    Symbol         Dspl Value
    -------------- ---- -----
    FAS$END        00CC
    FASASIBK       00B0
    FASASIWK       00B4
    FASB2GDF       0094
    FASB2GHI       0098
    FASCOUNT       00B8
    FASDCSHI       0090
    FASDCSS        007C 40
    FASDCSSF       007C 10
    FASDCSSP       0084
    FASDEFP        0088
    FASDMPID       007C 20
    FASDUMID       0010
    FASEASIT       0008
    FASFLAGS       007C
    FASFLAG2       007D
    FASFORM        007C 80
    FASFORMT       0074
    FASGPAGM       00A8
    FASHI          00A0
    FASIASIT       0000
    FASLPAGM       00AC
    FASNEXT        0080
    FASNOMRG       007D 80
    FASSTOR        008C
    FAS1451        007C 08

This information is based on z/VM V4R3.0. Last updated on 30 Apr 2002 at 16:19:34 EDT.
Copyright IBM Corporation, 1990, 2002