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.
 RELOCATION CONSIDERATIONS : None

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

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