User manual

Assembler directives ST Assembler-Linker

66/89 Doc ID 11392 Rev 4

Table 48. #IFLAB

Purpose Conditional on argument being a label.

Format #IFLAB <arg>

Description

This directive works just like #IF except it tests that its argument is a valid, predefined

label.

Example

check MACRO param1

#IFLAB param1

%OUT “LABEL”

#ENDIF

MEND

See also #IF2, #ELSE, #IF, #END

Table 49. #INCLUDE

Purpose Insert external source code file.

Format #INCLUDE “<filename>”

Description

INCLUDE files are source code files in the same format as normal modules but with

two important differences: the first line usually reserved for the processor name is like

any other source line, and they have no END directive. They are used to contain

#DEFINE and macro definitions that may be used by many different modules in your

program.

Instead of having each module declare its own set of #DEFINE and macro definitions,

each module just includes the contents of the same #INCLUDE file. The assembler

goes off to the named INCLUDE file and assembles this file before returning to the line

after the #INCLUDE directive in the former source code file.

The benefit is that any alterations made to a macro must be done once, in the include

file; but you'll still have to reassemble all modules referring to the changed entry.

NOTE that the filename must be inside double-quotes.

Example

st7/

#include “defst7.h”

...

END