Parameter lists

Communication from the exit programs to CICS® VR occurs through the parameters. An action parameter is always needed to tell CICS VR what action to take. For some exits, the exit program might update one of the input parameters and return it to CICS VR.

All communication between CICS VR and the exit programs is through parameters. When CICS VR calls an exit, register 1 points to a parameter list containing the addresses of the parameters. The parameter list is an area whose length depends on the number of parameters to be passed. For each parameter, it consists of one fullword containing the address of the parameter. Each exit has a different parameter list. You can find these lists and descriptions of the parameters, in the exit descriptions starting on page Error exit—pass I/O error information. When CICS VR calls an exit, register 1 points to a parameter list containing the addresses of the parameters. The parameter list is an area whose length depends on the number of parameters to be passed. For each parameter, it consists of one fullword containing the address of the parameter. Each exit has a different parameter list.


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Timestamp icon Last updated: Friday, 7 February 2014


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