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

#### SDDBK

Prolog

Control Block Contents
SDDBK DSECT

Storage Layout

Cross Reference (Contains links to field and bit definitions)

#### SDDBK Control Block Content

#### SDDBK DSECT

    Hex   Dec Type/Val   Lng Label (dup)    Comments
    ---- ---- --------- ---- -------------- --------
    0000    0 Structure      SDDBK          SET DUMP DATA
    0000    0 Signed       4 *              Reserved for future IBM use
    0004    4 Signed       4 SDDHI          Calculated DSIDPAHI value
    0008    8 Signed       4 SDDLO          Calculated DSIDPALO value
    000C   12 Signed       4 SDDRSA         RSADPACP value that CALCPAGS used
    0010   16 Signed       4 SDDRNUM        NO. OF RDEVS SPECIFIED
    0014   20 Signed       4 SDDRDSAV       SAVE AREA FOR RDEV
    0018   24 Signed       4 SDDSAV (4)     Save area for local routine calls
    0028   40 Signed       4 SDD8RDEV (8)   Workarea for storing up to 8
                                            RDEVs
    0048   72 Signed       4 *              Reserved for future IBM use
    004C   76 Signed       4 *              Reserved for future IBM use
    0050   80 Bitstring    1 SDDFLAG1       DUMP DEVICE FLAG
              1... ....      DASD           X'80' DASD RDEV = DASD Flag: SET
                                            DUMP DASD
              .1.. ....      TAPE           X'40' TAPE RDEV = TAPE Flag: SET
                                            DUMP xxx where xxx is a Tape
                                            device
              ...1 ....      DASDRDEV       X'10' DASDRDEV SET DUMP xxx yyy
                                            ... where xxx, yyy and up to 6
                                            more are DASD devices.
              .... .1..      SDEF           X'04' SDEF SET DUMP never issued
                                            - we are running with the system
                                            default
              .... 1...      DUMPNONE       X'08' DUMPNONE RDEV = None (SET
                                            DUMP OFF)
    0051   81 Bitstring    1 SDDFLG2        DUMP OPTIONS FLAG
              1... ....      IPL            X'80' IPL IPL OPTION FOR DUMP
                                            COMMAND
              .1.. ....      NOIPL          X'40' NOIPL NOIPL OPTION FOR DUMP
                                            COMMAND
              ..1. ....      CP             X'20' CP CP OPTION FOR DUMP
                                            COMMAND
              .... .1..      NOPRT          X'04' NOPRT NOPRINT option
                                            specified
              .... ..1.      XF             X'02' XF XF Option for DUMP
                                            Command
    0052   82 Bitstring    1 SDDFLG3        Display 9259 message flag
              1... ....      PRTRSP         X'80' PRTRSP Send message to
                                            ISSUER flag
              .1.. ....      PRTRSPO        X'40' PRTRSPO Send message to
                                            OPERATOR flag
              ..1. ....      PRTDMQRS       X'20' PRTDMQRS HCPDMQRS
                                            processing (snapdump)
              ...1 ....      PRTDMQFE       X'10' PRTDMQFE HCPDMPFE
                                            Reallocation processing
    0053   83 Bitstring    1 SDDFLAG4       SET DUMP response 701909 flag
              1... ....      PRTRSP2        X'80' PRTRSP2 Response 701909 has
                                            been displayed
              ...1 ....      SDDLacqd       X'10' SDDLacqd Caller acquired
                                            DSILOCK
    0054   84 Bitstring    1 SDDNCPVL       Save CALBK Number of CP Volumes
    0055   85 Bitstring    1 SDDCPVOL (8)   Save CALBK List of CP Volumes
    005D   93 Bitstring    1 SDDCALCD       Save CALBK Special Req Code Value
    005E   94 Bitstring    1 SDDCALFG       Save CALBK Processing Flags
    005F   95 Bitstring    1 SDDFLG5        Keep (sort of) count of options
              1... ....      GTRTHAN1       X'80' GTRTHAN1 There were at
                                            least 2 options SDDASA is big
                                            enough to handle the maximum
                                            number of CPVOLs plus one extra
                                            entry that is used to delimit the
                                            end of the used entries (256+1).
    0060   96 Signed       4 * (0)          Ensure fullword boundary
    0060   96 Bitstring    5 SDDASA (257)   Workarea for calculating pages
                                            per CP Volume Response
              00000505       SDDASAL        257*5 Length of SDDASA field
    0568 1384 Signed       4 *              Reserved for future IBM use
    056C 1388 Signed       4 *              Reserved for future IBM use
              000000AE       SDDSIZE        (*-SDDBK+7)/8 SDDBK dsect size in
                                            doublewords

#### SDDBK Storage Layout

    *** SDDBK - SET DUMP DATA
    *
    *     +---------------------------+---------------------------+
    *   0 |///////////////////////////|          SDDHI            |
    *     +---------------------------+---------------------------+
    *   8 |          SDDLO            |          SDDRSA           |
    *     +---------------------------+---------------------------+
    *  10 |         SDDRNUM           |         SDDRDSAV          |
    *     +---------------------------+---------------------------+
    *  18 |                        SDDSAV                         |
    *     |                                                       |
    *     +-------------------------------------------------------+
    *  28 |                                                       |
    *     =                       SDD8RDEV                        =
    *     |                                                       |
    *     +---------------------------+---------------------------+
    *  48 |///////////////////////////|///////////////////////////|
    *     +------+------+------+------+------+--------------------+
    *  50 |:FLAG1|:FLG2 |:FLG3 |:FLAG4|:NCPVL|      (055)-        |
    *     +------+------+------+------+------+------+------+------+
    *  58 |            -SDDCPVOL             |:CALCD|:CALFG|:FLG5 |
    *     +----------------------------------+------+------+------+
    *  60 |                                                       |
    *     =                        SDDASA                         =
    *     |                                  +--------------------+
    * 560 |                                  |////////////////////|
    *     +---------------------------+------+--------------------+
    * 568 |///////////////////////////|///////////////////////////|
    *     +---------------------------+---------------------------+
    * 570
    *
    *** SDDBK - SET DUMP DATA

#### SDDBK Cross Reference

    Symbol         Dspl Value
    -------------- ---- -----
    CP             0051 20
    DASD           0050 80
    DASDRDEV       0050 10
    DUMPNONE       0050 08
    GTRTHAN1       005F 80
    IPL            0051 80
    NOIPL          0051 40
    NOPRT          0051 04
    PRTDMQFE       0052 10
    PRTDMQRS       0052 20
    PRTRSP         0052 80
    PRTRSPO        0052 40
    PRTRSP2        0053 80
    SDDASA         0060
    SDDASAL        0060 00000505
    SDDCALCD       005D
    SDDCALFG       005E
    SDDCPVOL       0055
    SDDFLAG1       0050
    SDDFLAG4       0053
    SDDFLG2        0051
    SDDFLG3        0052
    SDDFLG5        005F
    SDDHI          0004
    SDDLacqd       0053 10
    SDDLO          0008
    SDDNCPVL       0054
    SDDRDSAV       0014
    SDDRNUM        0010
    SDDRSA         000C
    SDDSAV         0018
    SDDSIZE        056C 000000AE
    SDD8RDEV       0028
    SDEF           0050 04
    TAPE           0050 40
    XF             0051 02

This information is based on z/VM V6R1.0. Last updated on 18 Feb 2010 at 09:03:30 EDT.
Copyright IBM Corporation, 1990, 2008