ARM VERSION 1.2 7.3 Data definition directives

Directives Reference

7.3 Data definition directives

This section describes the following directives:

•LTORG on page 7-14

Set an origin for a literal pool.

•MAP on page7-15

Set the origin of a storage m ap.

•FIELD on page 7-16

Define a field within a storage map.

•SPACE on page7-17

Allocate a zeroed block of memory.

•DCB on page7-18

Allocate bytes of memory, and specify the initial contents.

•DCD and DCDU on page 7-19

Allocate words of memory, and specify the initial contents.

•DCDO on page7-20

Allocate words of memory, and specify the initial contents as offsets from the

static base register.

•DCFD and DCFDU on page7-21

Allocate double-words of memory, and specify the initial contents as

double-precision floating-point numbers.

•DCFS and DCFSU on page7-22

Allocate words of memory, and specify the initial contents as single-precision

floating-point numbers.

•DCI on page7-23

Allocate words of memory, and specify the initial contents. Mark the location as

code not data.

•DCQ and DCQU on page7-24

Allocate double-words of memory, and specify the initial contents as 64-bit

integers.

•DCW and DCWU on page7-25

Allocate half-words of memory, and specify the initial contents.

•DATA on page7-25

Mark data within a code section. Obsolete, for backwards compatibility only.