Using Macro Parameters

An HLI assembler macro may have some parameters which are referenced in the macro code. The following listing defines the Clear1 macro using the var parameter.

Listing: Clear1 Macro Definition

/* This macro initializes the specified variable to 0.*/
#define Clear1(var) {__asm CLR var;}

Invoking the Clear1 macro in the source code:

Clear1(var1);

The preprocessor expands the Clear1 macro:

{__asm CLR var1 ; };