$CKM mapping

         Input/Output for routine CKRRSTRT callers.
         Fields in section are named CKMSxxxx.
                                        | "S" for start
         Output fields are available to caller until the
         next CKRRDONE call.

         CKRRSTRT return codes

         Input/Output for routine CKRRSYNC callers.
         Fields in section are named CKMCxxxx.
                                        | "C" for sync
         Output fields are available to caller until the
         next CKRRSYNC or CKRRDONE call.

         CKMCACT contains an "action" code set by the
         driving member that tells non-driving members
         what to do.

         The "condition" fields communicate conditions
         from all members to the driving member.
         Conditions are collected into a vector on the
         driving member.

         "Reason codes" are communicated from all members
         to the driving member. The "reason codes" are
         collected into a vector on the driving member.
         Reason codes are set to zero by CKRRSYNC for
         non-participating or failed members.

         Latest $HFAM from driving member

         CKRRSYNC return codes

         Input/Output for routine CKRRDONE callers.
         Fields in section are named CKMDxxxx.
                                        | "D" for done
         Output fields are available to caller until the
         next CKRRSTRT call.
         CKRRDONE return codes

         Data internal to CKRRxxxx routines.
         Fields in section are named CKMIxxxx.
                                        | "I" for internal
         Fields between CKMIDATA and CKMICLR1 are
         persistent for the life of this JES2.
         Fields beginning at CKMICLR1 are cleared
         when CKRRSTRT is called.
         Fields beginning at CKMICLR2 are cleared
         when CKRRSYNC or CKRRDONE are called.

         General status flag byte

         Mailbox names (set by CKRRINIT)

         Delay time constants (set by CKRRINIT)

         JESXCF post exit information (set by CKRRINIT).
         Field CKMICKMA is also used for STIMERM.

         Beginning of area cleared by CKRRSTRT.
         Warning: The remainder of the $CKM data area
         is cleared when CKRRSTRT is called. The area
         from CKMICLR1 for a length of CKMICL1L is
         cleared.
         Note: See CKMICLR2 below for beginning of area
                to clear on CKRRSYNC and CKRRDONE calls.

         Reconfiguration status flags

         The following byte is permanently dedicated
         for IBM int rnal Function Component Test (FCT)
         use only.
         Warning: This section is used only for
         testing. Setting data in this section causes
         permanent waits or $K25 ABENDs.

         Reconfiguration operation sequence number
         Starts at zero on exit from CKRRSTRT and
         increments by one for each CKRRSYNC and by
         one more for CKRRDONE.

         Information about members participating in
         the current reconfiguration
         This information is looked at, but NOT set by,
         the IFGETVER (get member information) routine.
         IFGETVER does, however, subtract failed
         members from the participating member mask.

         Timing data

 --ISTMS STIMERM SET,MF=L List form to set timer
         MACDATE = 08/19/88

 --ISTMC STIMERM CANCEL,MF=L List form to cancel timer
         MACDATE = 08/19/88

         Beginning of area cleared by CKRRSYNC and
         CKRRDONE calls.
         Warning: The remainder of the $CKM data area
         is cleared when CKRRSYNC or CKRRDONE is called.
         The area from CKMICLR2 for a length of CKMICL2L
         is cleared.
         Note: See CKMICLR1 above for beginning of area
                to clear on CKRRSTRT calls.

         Information returned from IFGETVER routine

         Bit mapped work mask for member states, etc.

         Data used by the WUSTATE routine
          - R1 parameter equates for expected XCF
            user state data
          - Mask of members that have not made the
            expected state change and have a HASP257
            message outstanding

         Driver selection information

         Reason codes for $K28 errors

         Register save area, $ERROR reason code, and
         $Kxx error code index. Fields are set by the
         $CKRRRC, $CKRRV and $CKRRK30 macros and
         CRERROR routine.

         Footprint information
         Caution: Footprints are used for diagnosis ONLY
                   and are NOT tested to control the flow
                   or logic in reconfiguration routines.
                   Using footprints to control main-line
                   logic diminishes their value as an
                   independent diagnosis tool, and could
                   cause the diagnostic data to become
                   part of a problem instead of an aid
                   for problem determination.
         Function footprint codes

         Last IXZXIXxx function footprint

         Specific error type
         Error type equates have the form:
           CKMIXExx for JESXCF related $K29 and $K34 errors
           CKMIIExx for HASPCKRR internal logic $K30 errors

    Error types for JESXCF related $K29 or $K34 errors

    Error types for HASPCKRR internal logic $K30 errors

         IXZXIXxx macro return and reason codes

         Other footprints

         Data associated with IXZXIXxx services
         General use data

         Data returned from IXZXIXIF for member information

         Data returned from IXZXIXRM for a system event

         Data returned from IXZXIXRM for a message or ack

         Data returned from IXZXIXSM

         Data associated with $BLDMSG usage
 --IBMSG $BLDMSG MF=L List form of $BLDMSG

         List form macros for JESXCF services

 ------- IXZXIXAC MF=(L,CKMIIXAC) Acknowledge message
                 MACDATE -11/12/03-<1>

                                             IXZXIXAC-1

 ------- IXZXIXIF MF=(L,CKMIIXIF) Obtain member information
                 MACDATE -11/12/03-<2>

                                             IXZXIXIF-2

 ------- IXZXIXMB MF=(L,CKMIIXMB) Create mailbox
                 MACDATE -93/05/10-<1>

                                             IXZXIXMB-1

 ------- IXZXIXMC MF=(L,CKMIIXMC) Clear mailbox
                 MACDATE -93/05/10-<1>

                                             IXZXIXMC-1

 ------- IXZXIXMD MF=(L,CKMIIXMD) Delete mailbox
                 MACDATE -93/05/10-<1>

                                             IXZXIXMD-1

 ------- IXZXIXRM MF=(L,CKMIIXRM) Receive message
                 MACDATE -93/05/10-<1>

                                             IXZXIXRM-1

 ------- IXZXIXSM MF=(L,CKMIIXSM) Send message
                   MACDATE -10/16/01-<2>

                                             IXZXIXSM-2

         End of data internal to CKRRxxxx routines

         End of $CKM data area