Macro format

A macro format consists of two columns; the first column contains the macro name while the second contains the possible operands.

Macro name	Operands
<macroname>	<operand 1> ,<operand 2>

When a macro is called, the macro name must be separated from the first operand by at least one blank. Where several operands are specified together, they must be separated by commas.

The macro formats are represented with the aid of certain notational symbols (metacharacters), which are explained in the following table.