IUSBK Back to Index page
 
Prolog 
Control Block Contents 
   IUSBK 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.


  IUSBK Prolog Top of page
  
 NAME       : HCPIUSBK
 DESCRIPTION: IUCV WORK AREA MAPPING MACRO
 DSECT      : IUSBK
 FUNCTION   : TO PASS INFORMATION BETWEEN IUCV ENTRY POINTS.
 LOCATED BY : SEE ENTRY POINT REGISTERS
 CREATED BY : HCPIUAVM, HCPIUAIU, OR HCPIUACP
 DELETED BY : CREATOR (SEE ABOVE)
 RELOCATION CONSIDERATIONS : None
 
 
  IUSBK Control Block Content Top of page
  




 IUSBK DSECT
Top of page


Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      IUSBK          IUCV WORK AREA MAPPING MACRO
     **** THE VALUE OF IPSIZE FOR DATAMAP IS 5
0000    0 Dbl-Word     8 IUSPARMS (5)   PARM LIST - TEMP DATAMAP FIX
0028   40 Address      4 IUSLOCKA       IUCV LOCKWORD ADDRESS
002C   44 Address      4 IUSCCT         CCTBK ADDRESS
0030   48 Signed       4 IUSTRCID       TRACE CODE
0034   52 Bitstring    1 IUSCCODE       CP CONDITION CODE
0035   53 Bitstring    1 IUSFCODE       TRACE SUBTYPE
0036   54 Bitstring    1 IUSAWTCC       APPC/VM WAIT RETURNED COND. CODE
0037   55 Bitstring    1 *
0038   56 Address      4 IUSDCRA        DETAILED CONNECT REQUEST BK ADDR
003C   60 Address      4 IUSCPEBK       CPEBK ADDRESS IUSTRACE MUST BE ON
                                        A FULLWORD BOUNDRY
0040   64 Bitstring   20 IUSTRACE (0)   TRACE TABLE ENTRY
0040   64 Address      4 IUSIUCV        IUCVB ADDRESS
0044   68 Bitstring    1 IUSMASK (0)    MASK FIELD
0044   68 Bitstring    1 IUSCC (0)      CONDITON CODE FROM TESTMSG
0044   68 Signed       2 IUSPATH        PATH ID
0046   70 Bitstring    1 IUSRCODE       RETURN CODE
0047   71 Bitstring    1 IUSFLAGS       IUCV INPUT FLAGS
0048   72 Bitstring    1 IUSSTATE (0)   CURRENT APPC STATE
0048   72 Bitstring    1 IUSFNSTA (0)   APPC FUNCTION STATUS BITS
          00000080       IUSFNENT       X'80' IUSFNENT ENTERING APPCVM
                                        WAIT
          00000040       IUSFNEXI       X'40' IUSFNEXI EXITING APPCVM
                                        WAIT
0048   72 Signed       2 IUSIBUFL (0)   IPOLL DATA BUFFER LENGTH
0048   72 Bitstring    1 IUSCPSYS       CP SYSTEM SERVICE
0049   73 Bitstring    1 IUSFLGS2       APPC INPUT FLAGS
004A   74 Signed       2 IUSOBUFL (0)   IPOLL OUTPUT DATA LENGTH
004A   74 Bitstring    1 IUSWHTRC       APPC WHAT RECEIVED CODE
004B   75 Bitstring    1 IUSFLAGT (0)   FLAGS INCLUDED IN IUCV TRACES
          1... ....      IUSFRMCP       X'80' IUSFRMCP INDICATES A CALL
                                        FROM CP
004B   75 Bitstring    1 IUSSNDOP       APPC SEND OPTION CODE
004C   76 Bitstring    1 IUSSNDO2 (0)   APPC SEND OPTION CODE 2
004C   76 Address      4 IUSMSGBK (0)   MSGBLOK ADDRESS
004C   76 Address      4 IUSBUFF (0)    DCLBFR OR IPOLL BUFFER ADDRESS
004C   76 Signed       2 IUSIPSIZ (0)   PARMLIST SIZE FROM QUERY
004C   76 Bitstring    1 IUSSIPCD       SYNCPOINT IN PROGRESS RESET CODE
004D   77 Bitstring    1 IUSSIPFG       SYNCPOINT IN PROGRESS FLAG OUTPUT
004E   78 Signed       2 IUSMXCN (0)    MAXIMUM CONNECT FROM QUERY
004E   78 Bitstring    1 IUSSPCMD       SYNC POINT CONTROL MODIFIER
004F   79 Bitstring    1 IUSSYCLV       SYNC LEVEL FOR THE PATH
0050   80 Address      4 IUSINSTR       IUCV INSTRUCTION ADDRESS END OF
                                        TRACE TABLE ENTRY
0054   84 Address      4 IUSPAGE1       VIRTUAL ADDR OF IPARML
0058   88 Address      4 *              RESERVED
005C   92 Signed       2 IUSLEN1        LENGTH IN IUSPAGE1 - 1
005E   94 Signed       2 *              RESERVED
0060   96 Bitstring    1 IUSFLAG2
          1... ....      IUSCPENT       X'80' IUSCPENT INDICATES CP ENTRY
          .1.. ....      IUSWAIT        X'40' IUSWAIT WAIT FOR APPC
                                        COMPLETION
          ..1. ....      IUSSAVE        X'20' IUSSAVE ADDRESS OF DCRBK
                                        FOR SUSP. CONN.
          ...1 ....      IUSPDINV       X'10' IUSPDINV CLEAN UP SEVER
                                        ALREADY COMPLETED
          .... 1...      IUSKEEP        X'08' IUSKEEP SEVER KEEP=YES
                                        SPECIFIED
          .... .1..      IUSSNCIP       X'04' IUSSNCIP SYNCPOINT IN
                                        PROGRESS
0061   97 Bitstring    3 *              RESERVED
0064  100 Signed       4 IUSAVWRK (4)   savework area of 4 fullwords
          0000000F       IUSSIZE        (*-IUSBK+7)/8 IUSBK SIZE IN
                                        DOUBLEWORDS
 
 
  IUSBK Storage Layout Top of page
  
          
*** IUSBK - IUCV WORK AREA MAPPING MACRO
*
*     +-------------------------------------------------------+
*   0 |                                                       |
*     =                       IUSPARMS                        =
*     |                                                       |
*     +---------------------------+---------------------------+
*  28 |         IUSLOCKA          |          IUSCCT           |
*     +---------------------------+------+------+------+------+
*  30 |         IUSTRCID          |:CCODE|:FCODE|:AWTCC|//////|
*     +---------------------------+------+------+------+------+
*  38 |         IUSDCRA           |         IUSCPEBK          |
*     +---------------------------+-------------+------+------+
*  40 |         IUSIUCV           |  IUSPATH    |:RCODE|:FLAGS|
*     +------+------+------+------+------+------+------+------+
*  48 |:CPSYS|:FLGS2|:WHTRC|:SNDOP|:SIPCD|:SIPFG|:SPCMD|:SYCLV|
*     +------+------+------+------+------+------+------+------+
*  50 |         IUSINSTR          |         IUSPAGE1          |
*     +---------------------------+-------------+-------------+
*  58 |///////////////////////////|  IUSLEN1    |/////////////|
*     +------+--------------------+-------------+-------------+
*  60 |:FLAG2|////////////////////|                           |
*     +------+--------------------+                           |
*     |                       IUSAVWRK                        |
*     |                           +---------------------------+
*     |                           | 74
*     +---------------------------+
*
*** IUSBK - IUCV WORK AREA MAPPING MACRO
 
 
  IUSBK Cross Reference Top of page
  
 
Symbol         Dspl Value
-------------- ---- -----
IUSAVWRK       0064
IUSAWTCC       0036
IUSBUFF        004C
IUSCC          0044
IUSCCODE       0034
IUSCCT         002C
IUSCPEBK       003C
IUSCPENT       0060 80
IUSCPSYS       0048
IUSDCRA        0038
IUSFCODE       0035
IUSFLAGS       0047
IUSFLAGT       004B
IUSFLAG2       0060
IUSFLGS2       0049
IUSFNENT       0048 00000080
IUSFNEXI       0048 00000040
IUSFNSTA       0048
IUSFRMCP       004B 80
IUSIBUFL       0048
IUSINSTR       0050
IUSIPSIZ       004C
IUSIUCV        0040
IUSKEEP        0060 08
IUSLEN1        005C
IUSLOCKA       0028
IUSMASK        0044
IUSMSGBK       004C
IUSMXCN        004E
IUSOBUFL       004A
IUSPAGE1       0054
IUSPARMS       0000
IUSPATH        0044
IUSPDINV       0060 10
IUSRCODE       0046
IUSSAVE        0060 20
IUSSIPCD       004C
IUSSIPFG       004D
IUSSIZE        0064 0000000F
IUSSNCIP       0060 04
IUSSNDOP       004B
IUSSNDO2       004C
IUSSPCMD       004E
IUSSTATE       0048
IUSSYCLV       004F
IUSTRACE       0040
IUSTRCID       0030
IUSWAIT        0060 40
IUSWHTRC       004A
 
This information is based on z/VM 7.3.0 Last updated on 22 Jun 2022 at 15:51:47 EDT.
Copyright IBM Corporation, 1990, 2022