ARM VERSION 1.2 - page 306

Directives Reference

7.3.11 DCQ and DCQU

The

DCQ

directive allocates one or more 8-byte blocks of memory, aligned on 4-byte

boundaries, and defines the initial runtime contents of the memory.

DCQU

is the same, except that the memory alignment is arbitrary.

Syntax

{label} DCQ{U} {-}literal{,{-}literal}...

where:

literal

is a 64-bit numeric literal (see Numeric literals on page3-21).

The range of numbers allowed is 0 to 264 – 1.

In addition to the characters normally allowed in a numeric literal, you

can prefix

literal

with a minus sign. In this case, the range of numbers

allowed is –263 to –1.

The result of specifying

-n

is the same as the result of specifying 264 –

Usage

DCQ

inserts up to 3 bytes of padding before the first defined 8-byte block, if necessary,

to achieve 4-byte alignment.

Use

DCQU

if you do not require alignment.