NAME       : HCPREGBK
 DESCRIPTION: User Exit Registration Block
 DSECT      : REGBK
 FUNCTION   : This DSECT maps the shared control block which
              an extension to CP (user exit) uses to identify
              itself to the control program.
 LOCATED BY :
 CREATED BY :
 DELETED BY :
 SERIALIZED :
 RELOCATION CONSIDERATIONS : None
 COMMENTS   :

 REGBK DSECT
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Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      REGBK          User Exit Registration Block
0000    0 Dbl-Word     8 * (0)
0000    0 Signed       4 REGTYPE        Type of user exit
0004    4 Signed       2 REGCPLEN       Length of the CP area (REGCP)
0006    6 Signed       2 REGUSLEN       Length of the user area (REGUSER)
        CP area
          00000008       REGCP          * CP area
0008    8 Signed       4 REGCPWRD       CP word
000C   12 Address      4 REGCPPTR       CP pointer
0010   16 Address      4 REGRELES       Entry point to call if
                                        deregistration must happen
                                        immediately.
0014   20 Address      4 REGDRAIN       Entry point to call if
                                        deregistration can happen
                                        normally.
          00000018       REGCPDEF       * Start of CP area redefined for
                                        each function
        Mapping for the CP Datagram mailbox.
          00000018       REGCMBX        * CP fields for the ISFC
                                        transport
0018   24 Address      4 REGMBXAC       Activate entry point
001C   28 Address      4 REGMBXDC       De-activate entry point
0020   32 Address      4 REGMBXTR       Transmit entry point
0024   36 Signed       4 REGMBXD1       1st page data offset
0028   40 Signed       4 REGMBXDO       other pages data offset
        Length of the CP area.
          00000005       REGCPSZ        (*-REGCP+7)/8 REGCP size in
                                        doublewords
          00000024       REGCPBSZ       *-REGCP REGCP size in bytes
        Definition of the user portion of the REGBK. This is
        put after the CP length, so that it can be after the
        largest CP portion.
          0000002C       REGUSER        * User area
002C   44 Signed       4 REGUSWRD       User word
0030   48 Address      4 REGUSPTR       User pointer
0034   52 Address      4 REGREVKD       Pointer to the revocation
                                        notification entry point
          00000038       REGUSDEF       * Start of user area redefined
                                        for each function code.
        Mapping for the CP Datagram mailbox.
          00000038       REGUMBX        * User fields for the CP
                                        application mailbox
        Defined REGTYPEs
          00000004       REGTYMBX       4 CP Mailbox regtype
        Length of the user area.
          00000002       REGUSSZ        (*-REGUSER+7)/8 REGUSER size in
                                        doublewords
          0000000C       REGUSBSZ       *-REGUSER REGUSER size in bytes
        Length of the REGBK.
          00000007       REGSIZE        (*-REGBK+7)/8 REGBK size in
                                        doublewords
          00000038       REGBSIZE       *-REGBK REGBK size in bytes

          
*** REGBK - User Exit Registration Block
*
*     +---------------------------+-------------+-------------+
*   0 |         REGTYPE           |  REGCPLEN   |  REGUSLEN   |
*     +---------------------------+-------------+-------------+
*   8 |         REGCPWRD          |         REGCPPTR          |
*     +---------------------------+---------------------------+
*  10 |         REGRELES          |         REGDRAIN          |
*     +---------------------------+---------------------------+
*  18 |///////////////////////////////////////////////////////|
*     =///////////////////////////////////////////////////////=
*     |///////////////////////////+---------------------------+
*  28 |///////////////////////////|         REGUSWRD          |
*     +---------------------------+---------------------------+
*  30 |         REGUSPTR          |         REGREVKD          |
*     +---------------------------+---------------------------+
*  38
*
*** REGBK - User Exit Registration Block
          
*** Overlay for REGCPDEF in REGBK
*
*     +---------------------------+---------------------------+
*  18 |         REGMBXAC          |         REGMBXDC          |
*     +---------------------------+---------------------------+
*  20 |         REGMBXTR          |         REGMBXD1          |
*     +---------------------------+---------------------------+
*  28 |         REGMBXDO          | 2C
*     +---------------------------+
*
*** Overlay for REGCPDEF in REGBK

 
Symbol         Dspl Value
-------------- ---- -----
REGBSIZE       0034 00000038
REGCMBX        0014 00000018
REGCP          0006 00000008
REGCPBSZ       0028 00000024
REGCPDEF       0014 00000018
REGCPLEN       0004
REGCPPTR       000C
REGCPSZ        0028 00000005
REGCPWRD       0008
REGDRAIN       0014
REGMBXAC       0018
REGMBXDC       001C
REGMBXDO       0028
REGMBXD1       0024
REGMBXTR       0020
REGRELES       0010
REGREVKD       0034
REGSIZE        0034 00000007
REGTYMBX       0034 00000004
REGTYPE        0000
REGUMBX        0034 00000038
REGUSBSZ       0034 0000000C
REGUSDEF       0034 00000038
REGUSER        0028 0000002C
REGUSLEN       0006
REGUSPTR       0030
REGUSSZ        0034 00000002
REGUSWRD       002C