ARM VERSION 1.2 - page 286

Directives Reference

7.2.1 GBLA, GBLL, and GBLS

The

GBLA

directive declares a global arithmetic variable, and initializes its value to 0.

The

GBLL

directive declares a global logical variable, and initializes its value to

{FALSE}

The

GBLS

directive declares a global string variable and initializes its value to a null

string,

Syntax

<gblx> variable

where:

<gblx>

is one of

GBLA

GBLL

, or

GBLS

variable

is the name of the variable.

variable

must be unique amongst symbols

within a source file .

Usage

Using one of these directives for a variable that is already defined re-initializes the

variable to the s ame values given ab ove.

The scope of the variable is limited to the source file that contains it.

Set the value of the variable with a

SETA

SETL

, or

SETS

directive (see SETA, SETL, and

SETS on page7-7).

See LCLA, LCLL, and LCLS on page 7-6 for information on declaring local variables.

Global variables can also be set with the

-predefine

assembler command-line option.

See Command syntax on page3-2 for more information.