S50 Back to Index page
 
Prolog 
Control Block Contents 
   S50 DSECT
   S50OUT 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.

 
  S50 Control Block Content Top of page
  




 S50 DSECT
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Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      S50
0000    0 Character    8 S50NAME        Server name or blanks for any
                                        server
0008    8 Signed       4 S50BUFFL       Output buffer length
000C   12 Address      4 S50BUFF@       Output buffer address
0010   16 Signed       4 S50BITL        Length in bytes of following
                                        bitmap
0014   20 Bitstring    4 S50BITM
          00000018       S50LEN         *-S50 The equates below are used
                                        for both BITMAP and OUTTYP
          .... ....      TYPRWA         X'80000000' HCPRWA
          .... ....      TYPS50L        X'40000000' Array of supported
                                        bits + lengths
          .... ....      TYPDSDT        X'20000000' Dataset Descriptor
                                        Table
          .... ....      TYPPRNG        X'10000000' Range Table
          .... ....      TYPCNST        X'08000000' Class Descriptor
                                        Table
          .... ....      TYPRCVT        X'04000000' RCVT
          .... ....      TYPRCVX        X'02000000' RCVX
          .... ....      TYPTMPL        X'01000000' In-storage Templates
          00800000       TYPDPTB        X'00800000' Dynamic Parse Table
          00400000       TYPRFRT        X'00400000' RACF Router Table
          00200000       TYPSAFV        X'00200000' SAF Vector Table
          00100000       TYPEXIT        X'00100000' Prefix areas for
                                        installed exits
          00080000       TYPSYSID       X'00080000' SMF system id
          00040000       TYPSMFDSK      X'00040000' SMF current disk
          00020000       TYPSMFOWN      X'00020000' SMF current disk
                                        owner
          00010000       TYPSMFFILE     X'00010000' SMF data file name




 S50OUT DSECT
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Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      S50OUT
0000    0 Character    8 S50ONAM        Name of data item
0008    8 Bitstring    4 S50OTYP
000C   12 Signed       4 S50OLEN        Length of S50ODATA
0010   16 Address      4 S50OADR        Load address, may be used by
                                        caller to convert pointers to
                                        offsets
0014   20 Signed       4 *              Reserved fullword
0018   24 Character    1 S50ODTA (0)    RACF data
          00000018       S50OSIZ        *-S50OUT
 
 
  S50 Storage Layout Top of page
  
          
*** S50 - Control Block in S50
*
*     +-------------------------------------------------------+
*   0 |                       S50NAME                         |
*     +---------------------------+---------------------------+
*   8 |         S50BUFFL          |         S50BUFF@          |
*     +---------------------------+---------------------------+
*  10 |         S50BITL           |         S50BITM           |
*     +---------------------------+---------------------------+
*  18
*
*** S50 - Control Block in S50
          
*** S50OUT - Control Block in S50
*
*     +-------------------------------------------------------+
*   0 |                       S50ONAM                         |
*     +---------------------------+---------------------------+
*   8 |         S50OTYP           |         S50OLEN           |
*     +---------------------------+---------------------------+
*  10 |         S50OADR           |///////////////////////////|
*     +---------------------------+---------------------------+
*
*** S50OUT - Control Block in S50
 
 
  S50 Cross Reference Top of page
  
 
Symbol         Dspl Value
-------------- ---- -----
S50BITL        0010
S50BITM        0014
S50BUFF@       000C
S50BUFFL       0008
S50LEN         0014 00000018
S50NAME        0000
S50OADR        0010
S50ODTA        0018
S50OLEN        000C
S50ONAM        0000
S50OSIZ        0018 00000018
S50OTYP        0008
TYPCNST        0014 00
TYPDPTB        0014 00800000
TYPDSDT        0014 00
TYPEXIT        0014 00100000
TYPPRNG        0014 00
TYPRCVT        0014 00
TYPRCVX        0014 00
TYPRFRT        0014 00400000
TYPRWA         0014 00
TYPSAFV        0014 00200000
TYPSMFDSK      0014 00040000
TYPSMFFILE     0014 00010000
TYPSMFOWN      0014 00020000
TYPSYSID       0014 00080000
TYPS50L        0014 00
TYPTMPL        0014 00
 
This information is based on z/VM 7.5.0 Last updated on 22 Jun 2026 at 11:17:14 EDT.
Copyright IBM Corporation, 1990, 2026