NAME       : HCPSDLBK
 DESCRIPTION: SPOOLING DATA LOCATOR BLOCK
 DSECT      : SDLBK
 FUNCTION   : SPECIFIES THE CCW AND THE LOCATION OF ASSOCIATED
              DATA TO BE ADDED TO OR READ FROM A SPOOL FILE.
 LOCATED BY : VDSSDL - ANCHOR IN HCPVDSBK
              GENERAL REGISTER 1 IN HCPVSP, HCPSPS, & HCPSXS
 CREATED BY : HCPVDS, HCPSPS
 DELETED BY : HCPDTD, HCPSPS
 RELOCATION CONSIDERATIONS : None

 SDLBK DSECT
Top of page

Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      SDLBK          SPOOLING DATA LOCATOR BLOCK
0000    0 Bitstring    1 SDLCCWOP       CCW COMMAND CODE
0001    1 Bitstring    1 SDLCCWFL       CCW FLAG BITS
          1... ....      CCWDC          X'80' CCWDC CHAIN DATA ADDRESS
                                        AND COUNT
          .1.. ....      CCWCC          X'40' CCWCC COMMAND CHAIN
          ..1. ....      CCWSILI        X'20' CCWSILI SUPPRESS INCORRECT
                                        LENGTH
          ...1 ....      CCWSKIP        X'10' CCWSKIP SUPPRESS INBOUND
                                        DATA TRANSFER
          .... 1...      CCWPCIR        X'08' CCWPCIR REQUEST PC
                                        INTERRUPTION
          .... .1..      CCWIDA         X'04' CCWIDA INDIRECT DATA
                                        ADDRESSING
          .... ..11      CCWINVAL       X'03' CCWINVAL I/O UNDEFINED PAIR
                                        OF BITS
          .... ..1.      CCWSUSPN       X'02' CCWSUSPN I/O
                                        SUSPENSION/RESUMPTION The
                                        CCWUNDEF definition is left here
                                        because some code still uses this
                                        field where the CCWMIDA bit is
                                        not applicable.
          .... ...1      CCWUNDEF       X'01' CCWUNDEF I/O UNDEFINED BIT
          .... ...1      CCWMIDA        X'01' CCWMIDA
                                        Modified-CCW-indirect-data-addres
                                        sing
0002    2 Bitstring    2 SDLTBC         TOTAL BYTE COUNT (CCW DATA COUNT)
0004    4 Bitstring    1 * (3)          RESERVED
0007    7 Bitstring    1 SDLFLAG        DATA LOCATOR FLAG
          1... ....      SDLCHSIM       X'80' SDLCHSIM USE CHANNEL
                                        SIMULATOR TO MOVE DATA. IF OFF,
                                        DATA BUFFER LIST FOLLOWS.
          .1.. ....      SDLNOTTL       X'40' SDLNOTTL DO NOT PRINT PAGE
                                        TITLES
          ..1. ....      SDLFSTSP       X'20' SDLFSTSP This is the first
                                        SPLINK in the file to be
                                        translated
          ...1 ....      SDLSPTCM       X'10' SDLSPTCM SPTAPE LOAD issued
                                        and blanks are compressed
0008    8 Signed       4 SDLIORBK       IORBK ADDR FOR CHANNEL SIMULATOR
000C   12 Signed       4 SDLBUFCT       NUMBER OF DATA BUFFERS (0-4)
                                        WHICH FOLLOW
0010   16 Dbl-Word     8 SDLSECTS (6)   0-4 DATA BUFFERS (ADDR / LENGTH)
       The length of the SDLSAVE field for BLOCKMAP is 64 d-words
0040   64 Dbl-Word     8 SDLSAVE (64)   Add a savearea for use by VSQRW
          00000048       SDLSIZE        (*-SDLBK+7)/8 SDLBK SIZE IN
                                        DOUBLE WORDS
0010   16 Signed       4 SDLSRADD       Host Logical addr of data section
0014   20 Signed       4 SDLSVADD       VIRTUAL ADDRESS OF DATA SECTION.
                                        (WORK AREA FOR CALLER - NOT REQ)
0018   24 Signed       4 SDLSECCT       BYTE COUNT OF THE DATA SECTION
          0000000C       SDLENTRY       *-SDLSRADD LENGTH OF ONE DATA
                                        BUFFER ENTRY

          
*** SDLBK - SPOOLING DATA LOCATOR BLOCK
*
*     +------+------+-------------+--------------------+------+
*   0 |:CCWOP|:CCWFL|   SDLTBC    |////////////////////|:FLAG |
*     +------+------+-------------+--------------------+------+
*   8 |         SDLIORBK          |         SDLBUFCT          |
*     +---------------------------+---------------------------+
*  10 |                                                       |
*     =                       SDLSECTS                        =
*     |                                                       |
*     +-------------------------------------------------------+
*  40 |                                                       |
*     =                       SDLSAVE                         =
*     |                                                       |
*     +-------------------------------------------------------+
* 240
*
*** SDLBK - SPOOLING DATA LOCATOR BLOCK
          
*** Overlay for SDLSECTS in SDLBK
*
*     +---------------------------+---------------------------+
*  10 |         SDLSRADD          |         SDLSVADD          |
*     +---------------------------+---------------------------+
*  18 |         SDLSECCT          | 1C
*     +---------------------------+
*
*** Overlay for SDLSECTS in SDLBK

 
Symbol         Dspl Value
-------------- ---- -----
CCWCC          0001 40
CCWDC          0001 80
CCWIDA         0001 04
CCWINVAL       0001 03
CCWMIDA        0001 01
CCWPCIR        0001 08
CCWSILI        0001 20
CCWSKIP        0001 10
CCWSUSPN       0001 02
CCWUNDEF       0001 01
SDLBUFCT       000C
SDLCCWFL       0001
SDLCCWOP       0000
SDLCHSIM       0007 80
SDLENTRY       0018 0000000C
SDLFLAG        0007
SDLFSTSP       0007 20
SDLIORBK       0008
SDLNOTTL       0007 40
SDLSAVE        0040
SDLSECCT       0018
SDLSECTS       0010
SDLSIZE        0040 00000048
SDLSPTCM       0007 10
SDLSRADD       0010
SDLSVADD       0014
SDLTBC         0002