Learn how to use macros in assembly language programming to automate repetitive tasks, simplify your source code, and improve your code quality and performance. Agree & Join LinkedIn ...

For example, the statements defining a macro you would call by submitting %SPLIT must be in a file named SPLIT. On MVS operating systems, you must assign the macro name as the name of the PDS member.

(1) A special-purpose command language used to automate sequences within an application such as a spreadsheet or word processor. Macro languages often include programming controls (IF THEN, GOTO ...

It does not seem to matter which clause is active, nor does it seem to matter what is contained in the macro definition. (The sample code has an empty definition of ARGUMENT_MACRO(x) in order to show ...