DFUEX: Define z/TPFDF user exit point
Use this system macro to define a z/TPFDF user exit point.
Last updated
- Changed for PUT03.
- Changed for PUT00.
Format
- label
- is a symbolic name assigned to the macro statement.
- CASE=casenum
- specifies the case number that is passed with the macro call. See z/TPF and z/TPFDF System Installation Support Reference for a list of valid case numbers and the abstract of each case number.
Entry requirements
See the dfuex.mac source code for entry requirement information.
Return conditions
See the dfuex.mac source code for information about return conditions.
Programming considerations
- For information about macro register conventions, see Assembler program register conventions.
- All data, address reference fields, and storage areas that are passed to the z/TPFDF product assembler macros must reside below 2 GB in storage unless otherwise noted.
Note: User exit details are provided in the prologs of the source code.
Examples
The following example shows how to include
case number 1:
DFUEX CASE=1Related information
None.