Arm VERSION 1.2 Manuel d'utilisateur télécharger pdf (Page 295)

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 page 7-15

Set the origin of a storage map.

• FIELD on page 7-16

Define a field within a storage map.

• SPACE on page 7-17

Allocate a zeroed block of memory.

• DCB on page 7-18

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 page 7-20

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

static base register.

• DCFD and DCFDU on page 7-21

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

double-precision floating-point numbers.

• DCFS and DCFSU on page 7-22

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

floating-point numbers.

• DCI on page 7-23

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

code not data.

• DCQ and DCQU on page 7-24

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

integers.

• DCW and DCWU on page 7-25

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

• DATA on page 7-25

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

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Arm VERSION 1.2 Manuel d'utilisateur Page 295