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