IBM Extension
IBM Extension
Format 7 - Adjusting Pointers
When Format 7 of the SET statement is executed, the address contained in pointer-data-item is increased (UP BY) or decreased (DOWN BY) by a value that corresponds to the value in the sending field.
SET Statement - Format 7 .-------------------. V | >>-SET----pointer-data-item-+--+-UP BY---+----------------------> '-DOWN BY-' >--+-identifier-8------------+--------------------------------->< +-integer-3---------------+ '-LENGTH OF--identifier-9-'
- pointer-data-item
- The receiving field must be an elementary data item with USAGE IS POINTER.
- identifier-8
- This sending field must be an elementary integer data-item.
Identifier-8 cannot be a floating-point data item.
- integer-3
- This sending field must be an integer.
- identifier-9
- For more information on the rules for identifier-9, see LENGTH OF Special Register.
End of IBM Extension
