AREA Assembler Statement

Arguments

AREA segment-name, class-name <[>, attributes <[>,...<]><]>

Description

The AREA statement defines an ARM-compatible segment.

Where

segment-name

Specifies the name for the segment.

class-name

Specifies the name of a valid system class (CODE, CONST, DATA, ERAM) or an user class.

A user class is composed of a system class and an extension ("DATA2" or "CODE_FLASH2") and lets you access the same address space as the system class. The user class allows locating of segment groups with the Linker CLASSES directive.

attributes

Specifies alignment, location, or access type for the segment.

Attribute	Description
READONLY	Specifies that the segment is read-only and may not be written.
READWRITE	Specifies the segment is readable and writable.
ALIGN=n	Specifies segment alignment as 2ⁿ where n may be a value from 2-31.
AT address	Specifies an absolute address for the segment.

See Also

RSEG

Example

The following example defines a segment named STACK in the DATA memory class that may be read and written and that is aligned on a 2²-byte boundary.

AREA   STACK, DATA, READWRITE, ALIGN=2

The following example defines a segment named STARTUP in the CODE memory class that is located at physical address 0x00000000.

AREA   STARTUP, CODE, AT 0x00000000

The following example defines a segment named STARTUP in the user class CODE_FLASH.

AREA   STARTUP, "CODE_FLASH"