TRDBK | Back to Index page

| Prolog Control Block Contents TRDBK DSECT Storage Layout Cross Reference (Contains links to field and bit definitions) |
Programming Interface Information: This information is NOT intended to be used as Programming Interfaces of z/VM.

TRDBK Prolog | Top of page

     NAME       : HCPTRDBK
     DESCRIPTION: TRACEID/TRACESET DISPLAY CHAIN ENTRY
     DSECT      : TRDBK
     FUNCTION   : THE TRDBK IS AN ENTRY IN A CHAIN OF EITHER
                  TRACEID NAMES OR TRACESET NAMES.  IT ALLOWS
                  TRSOURCE DISPLAY PROCESSING TO PROCESS
                  REQUESTS FROM EITHER THE TRSOURCE DISPLAY
                  PARAMETER OR FROM QUERY TRSOURCE IN THE ORDER
                  THAT IT WAS REQUESTED.
     LOCATED BY : TXCTRDBK
     CREATED BY : HCPTXR, HCPTXQ, HCPTXS
     DELETED BY : HCPTXS
     RELOCATION CONSIDERATIONS : None

TRDBK Control Block Content | Top of page

     TRDBK DSECT
    Top of page

    Hex   Dec Type/Val   Lng Label (dup)    Comments
    ---- ---- --------- ---- -------------- --------
    0000    0 Structure      TRDBK          TRACEID/TRACESET DISPLAY CHAIN ENTRY
    0000    0 Address      4 TRDFPTR        FORWARD POINTER TO NEXT ENTRY
    0004    4 Bitstring    1 TRDOPT         TYPE OF CHAIN
              1... ....      TRDSET         X'80' TRDSET DISPLAY A TRACESET
              .1.. ....      TRDID          X'40' TRDID DISPLAY A TRACEID
              .... 1...      TRDNODRP       X'08' TRDNODRP NOT DROP
                                            PROCESSING
              .... .1..      TRDQUERY       X'04' TRDQUERY QUERY TRSOURCE
    0005    5 Bitstring    1 * (3)          RESERVED
    0008    8 Character    8 TRDNAME        TRACESET OR TRACEID NAME
              00000010       TRDSIZEB       (*-TRDBK) TRDBK SIZE IN BYTES
              00000002       TRDSIZE        (*-TRDBK+7)/8 TRDBK SIZE IN
                                            DOUBLEWORDS

TRDBK Storage Layout | Top of page

    *** TRDBK - TRACEID/TRACESET DISPLAY CHAIN ENTRY
    *
    *     +---------------------------+------+--------------------+
    *   0 |         TRDFPTR           |TRDOPT|////////////////////|
    *     +---------------------------+------+--------------------+
    *   8 |                       TRDNAME                         |
    *     +-------------------------------------------------------+
    *  10
    *
    *** TRDBK - TRACEID/TRACESET DISPLAY CHAIN ENTRY

TRDBK Cross Reference | Top of page

    Symbol         Dspl Value
    -------------- ---- -----
    TRDFPTR        0000
    TRDID          0004 40
    TRDNAME        0008
    TRDNODRP       0004 08
    TRDOPT         0004
    TRDQUERY       0004 04
    TRDSET         0004 80
    TRDSIZE        0008 00000002
    TRDSIZEB       0008 00000010

This information is based on z/VM 7.2.0 Last updated on 24 Jun 2020 at 09:31:20 EDT.
Copyright IBM Corporation, 1990, 2020