z/OS DFSMStvs Administration Guide
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Execute-form keyword

z/OS DFSMStvs Administration Guide
GC52-1388-00

The format of the MF keyword for the execute form is:

MF=(E,address)

where:
E
Specifies that this is the execute form of the macro.
address
Specifies the address of the parameter list.
Expansion of the execute form of the macro results in executable code that causes:
  1. A parameter list to be modified, if requested
  2. Control to be passed to a routine that satisfies the request.

You may not use the execute form to add an entry to a parameter list. If you try to add an entry, you receive a return code of 8 in register 15.

Parent topic: Use of list, execute, and generate forms of VSAM macros

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