WIDBK Back to Index page
 
Prolog 
Control Block Contents 
   WIDBK 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.


  WIDBK Prolog Top of page
 
 NAME       : HCPWIDBK
 DESCRIPTION: Work Indirect Data address BlocK
 DSECT      : WIDBK
 FUNCTION   :
              This block is used to contain a list of indirect
              address words (IDAW) and counts that identifies
              discontinuous storage buffers to IUCV
 LOCATED BY :
              WEIWIDBK - Address of buffer list WIDBK
              (located in WEIBK)
              WEIWIDSN - Send list WIDBK copy address
              (located in WEIBK)
              WEIWIDAN - Answer list WIDBK copy address
              (located in WEIBK)
 CREATED BY :
              HCPBOYGO - Logo WEIBK builder
              HCPVCERI - SNA Full-Screen Read Interface Routine
              HCPVCMIX - IUCV SEND issuer
              HCPVCYSM - SNA Full-Screen and DIAL Simulator
 DELETED BY :
              HCPVCERI - SNA Full-Screen Read Interface Routine
              HCPVCFRD - SNA Full-Screen Read Initiator
              HCPVCGWT - SNA Full-Screen Write Initiator
              HCPVCMIN - SNABK input chain control block releaser
              HCPVCMIX - IUCV SEND issuer
              HCPVCMUT - SNABK output chain control block releaser
              HCPVCXCU - Unchain an eligible VSM logo WEIBK
              HCPVCYSM - SNA Full-Screen and DIAL Simulator
 SERIALIZED :
              None
              Since this block is only accessed thru a WEIBK, access
              to this block's data must be serialized thru the
              owning WEIBK's serialization.
 RELOCATION CONSIDERATIONS : None
 
 
  WIDBK Control Block Content Top of page
 

 WIDBK DSECT Top of page
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure WIDBK Work Indirect Data address BlocK 0000 0 Dbl-Word 8 WIDHDR1 (0) WIDBK header 0000 0 Signed 4 WIDWEBA1 WEBBK address 0004 4 Signed 4 WIDWEBL1 WEBBK length 00000008 WIDHDRSZ *-WIDHDR1 WIDBK header length 0008 8 Dbl-Word 8 WIDELMT (0) First IDA element 0008 8 Signed 4 WIDADDR Address of IDA buffer 000C 12 Signed 4 WIDCOUNT Byte count of IDA buffer 00000008 WIDELMSZ *-WIDELMT IDA element length
 
 
  WIDBK Storage Layout Top of page
 
          
*** WIDBK - Work Indirect Data address BlocK
*
*     +---------------------------+---------------------------+
*   0 |         WIDWEBA1          |         WIDWEBL1          |
*     +---------------------------+---------------------------+
*   8 |         WIDADDR           |         WIDCOUNT          |
*     +---------------------------+---------------------------+
*  10
*
*** WIDBK - Work Indirect Data address BlocK
 
 
  WIDBK Cross Reference Top of page
 
 
Symbol         Dspl Value
-------------- ---- -----
WIDADDR        0008
WIDCOUNT       000C
WIDELMSZ       000C 00000008
WIDELMT        0008
WIDHDRSZ       0004 00000008
WIDHDR1        0000
WIDWEBA1       0000
WIDWEBL1       0004
 
This information is based on z/VM 7.3.0 Last updated on 22 Jun 2022 at 15:58:05 EDT.
Copyright IBM Corporation, 1990, 2022