You can use a macro instruction operand to pass a value into the called macro definition. The two types of value you can pass are:
The explicit value specified in a macro instruction operand is a character string that can contain zero or more variable symbols.
The character string must not be greater than 1024 characters after substitution of values for any variable symbols. This includes a character string that constitutes a sublist.
The character string values in the operands, including sublist entries, are assigned to the corresponding parameters declared in the prototype statement of the called macro definition. A sublist entry is assigned to the corresponding subscripted parameter.
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