SSPBK - 64-bit CP - V4R4.0

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

#### SSPBK

Prolog

Control Block Contents
SSPBK DSECT

Storage Layout

Cross Reference (Contains links to field and bit definitions)

#### SSPBK Prolog

     Name       : HCPSSPBK
     Description: Pointer block to SSBDF blocks
     DSECT      : SSPBK
     Function   : The chain of SSPBKs acts as the trunk of the syntax
                  tree defined by the invocation of the HCPDOSYN macro.
                  The SSPBKs point to the SSBDF blocks, which anchor
                  the branches of the syntax.
     Located by : SYNSSPPT created during expansion of HCPDOSYN macro.
                  SYNSSPPT changed as a result of the EXTERNAL_SYNTAX
                  statement in the SYSTEM CONFIG file.
                  SSPFWD   created during expansion of HCPDOSYN macro.
                  SSPFWD   changed as a result of the EXTERNAL_SYNTAX
                  statement in the SYSTEM CONFIG file.
     Created by : Invocation of the HCPDOSYN macro.
                  HCPZPUES as a result of the EXTERNAL_SYNTAX
                  statement in the SYSTEM CONFIG file.

#### SSPBK Control Block Content

#### SSPBK DSECT

    Hex   Dec Type/Val   Lng Label (dup)    Comments
    ---- ---- --------- ---- -------------- --------
    0000    0 Structure      SSPBK          Pointer block to SSBDF blocks
    0000    0 Address      4 SSPFWD         Address of next SSPBK.
         - If positive, then this is a system virtual address.
         - If negative, then the high order bit was ORed on. Once the high order
         bit is Xed off, the value will be the real address of the next SSPBK.
    0004    4 Address      4 SSPEPAV        System virtual address of the
                                            epname in SSPEPN.
    0008    8 Character    8 SSPEPN         Epname that contains the SSBDFs.
    0010   16 Character    1 SSP$END (0)    The end

#### SSPBK Storage Layout

    *** SSPBK - Pointer block to SSBDF blocks
    *
    *     +---------------------------+---------------------------+
    *   0 |          SSPFWD           |         SSPEPAV           |
    *     +---------------------------+---------------------------+
    *   8 |                        SSPEPN                         |
    *     +-------------------------------------------------------+
    *
    *** SSPBK - Pointer block to SSBDF blocks

#### SSPBK Cross Reference

    Symbol         Dspl Value
    -------------- ---- -----
    SSP$END        0010
    SSPEPAV        0004
    SSPEPN         0008
    SSPFWD         0000

This information is based on z/VM V4R4.0. Last updated on 30 Jul 2003 at 13:16:29 EDT.
Copyright IBM Corporation, 1990, 2003