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

#### SCTBK

Prolog

Control Block Contents
SCTBK DSECT

Storage Layout

Cross Reference (Contains links to field and bit definitions)

#### SCTBK Prolog

     NAME       : HCPSCTBK
     DESCRIPTION: SPOOL FILE CLASS TITLE BLOCK
     DSECT      : SCTBK
     FUNCTION   : CONTAINS THE CLASSIFICATION TITLE FOR
                  EACH SPOOL FILE CLASS SPECIFIED IN
                  SYSPCLAS MACRO.  THE CLASSIFICATION
                  TITLE APPEARS ON SEPARATOR PAGES AND
                  ON THE TOP OR BOTTOM OF EACH PAGE OF
                  PRINTED OUTPUT IF SO SPECIFIED IN
                  SYSPCLAS MACRO.
     LOCATED BY : SYSSCTT FIELD OF HCPSYSCM
     CREATED BY : HCPSYS ASSEMBLY (SYSGEN) IF THERE IS A
                  SYSPCLAS MACRO
     DELETED BY : NONE

#### SCTBK Control Block Content

#### SCTBK DSECT

    Hex   Dec Type/Val   Lng Label (dup)    Comments
    ---- ---- --------- ---- -------------- --------
    0000    0 Structure      SCTBK          SUBSYSTEM TABLE HEADER BLOCK
    0000    0 Character    1 SCTCLASS       SPOOL FILE CLASS
              1111 1111      SCTEND         X'FF' END OF QUEUE MARKER IN
                                            SCTCLASS
    0001    1 Bitstring    1 SCTFLAGS       OPTIONS TOP/BOTTOM
              1... ....      SCTTOP         X'80' PUT TITLE AT TOP OF EACH
                                            PAGE
              .1.. ....      SCTBOT         X'40' PUT TITLE AT BOTTOM OF EACH
                                            PAGE
    0002    2 Bitstring    1 SCTLTITL       LENGTH OF CLASS TITLE
    0003    3 Bitstring    1 *              RESERVED FOR IBM FUTURE USE
    0004    4 Character   46 SCTTITLE       TITLE FOR PRINT TITLES
              00000032       SCTSIZE        *-SCTBK Number of bytes in SCTBK
                                            entry
              00000007       SCTSIZED       (*-SCTBK+7)/8 Size in double
                                            words

#### SCTBK Storage Layout

    *** SCTBK - SUBSYSTEM TABLE HEADER BLOCK
    *
    *     +------+------+------+------+---------------------------+
    *   0 |:CLASS|:FLAGS|:LTITL|//////|                           |
    *     +------+------+------+------+                           |
    *   8 |                                                       |
    *     =                       SCTTITLE                        =
    *     |             +-----------------------------------------+
    *     |             | 32
    *     +-------------+
    *
    *** SCTBK - SUBSYSTEM TABLE HEADER BLOCK

#### SCTBK Cross Reference

    Symbol         Dspl Value
    -------------- ---- -----
    SCTBOT         0001 40
    SCTCLASS       0000
    SCTEND         0000 FF
    SCTFLAGS       0001
    SCTLTITL       0002
    SCTSIZE        0004 00000032
    SCTSIZED       0004 00000007
    SCTTITLE       0004
    SCTTOP         0001 80

This information is based on z/VM V4R3.0. Last updated on 1 May 2002 at 10:20:33 EDT.
Copyright IBM Corporation, 1990, 2002