MIDAW Back to Index page
 
Prolog 
Control Block Contents 
   MIDAW 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.


  MIDAW Prolog Top of page
  
 NAME       : HCPMIDAW
 DESCRIPTION: Modified indirect data addressing word mapping
 DSECT      : MIDAW
 FUNCTION   : Provide symbolic reference to the fields of a
              modified indirect data address list
 LOCATED BY : N/A
 CREATED BY : N/A
 DELETED BY : NA
 RELOCATION CONSIDERATIONS : None
 
 
  MIDAW Control Block Content Top of page
  




 MIDAW DSECT
Top of page


Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      MIDAW          Modified indirect data addressing word mapping
0000    0 Bitstring    5 MIDAWRES       Reserved
0005    5 Bitstring    1 MIDAWFLG       MIDAW flag byte
          1... ....      MIDAWLST       X'80' MIDAWLST THIS IS THE LAST
                                        MIDAW
          .1.. ....      MIDAWSKP       X'40' MIDAWSKP SKIP DATA TRANSFER
                                        FOR THE MIDAW
          ..1. ....      MIDAWCCW       X'20' MIDAWCCW CCW translation
                                        prog check bit
0006    6 Signed       2 MIDAWCNT       MIDAW count
0008    8 Dbl-Word     8 MIDAWADR (0)   MIDAW data address
0008    8 Signed       4 MIDAWADH       High half of data address
000C   12 Signed       4 MIDAWADL       Low half of data address
0010   16 Dbl-Word     8 MIDAWNXT (0)   Next MIDAW address
          00000010       MIDAWSIZ       (*-MIDAW) MIDAW size in bytes
          00000002       MIDAWSZD       (*-MIDAW+7)/8 MIDAW size in
                                        doublewords
 
 
  MIDAW Storage Layout Top of page
  
          
*** MIDAW - Modified indirect data addressing word mapping
*
*     +----------------------------------+------+-------------+
*   0 |            MIDAWRES              |:AWFLG|  MIDAWCNT   |
*     +---------------------------+------+------+-------------+
*   8 |         MIDAWADH          |         MIDAWADL          |
*     +---------------------------+---------------------------+
*
*** MIDAW - Modified indirect data addressing word mapping
 
 
  MIDAW Cross Reference Top of page
  
 
Symbol         Dspl Value
-------------- ---- -----
MIDAWADH       0008
MIDAWADL       000C
MIDAWADR       0008
MIDAWCCW       0005 20
MIDAWCNT       0006
MIDAWFLG       0005
MIDAWLST       0005 80
MIDAWNXT       0010
MIDAWRES       0000
MIDAWSIZ       0010 00000010
MIDAWSKP       0005 40
MIDAWSZD       0010 00000002
 
This information is based on z/VM 7.3.0 Last updated on 22 Jun 2022 at 15:52:42 EDT.
Copyright IBM Corporation, 1990, 2022