Page 98 - DCAP507_SYSTEM_SOFTWARE

System Software

Notes 7.1.3 Basic Macro Processor Functions

The fundamental functions familiar to all macro processors are:
1. Macro Definition

2. Macro Invocation
3. Macro Expansion

Macro Definition and Expansion

 Two new assembler directives are utilized in macro definition:
 MACRO: identify the beginning of a macro definition
 MEND: identify the end of a macro definition

 Prototype for the macro:
 Each parameter begins with '&
'label op operands
name MACRO parameters

:
Body
:
MEND

 Body: The statements that will be produced as the expansion of the macro.

Contd...

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