RealView® Developer Kit Assembler Guide 3.6.4. Numeric literals

3.6.4. Numeric literals

Numeric literals can take any of the following forms:

decimal-digits

0xhexadecimal-digits

&hexadecimal-digits

n_base-n-digits

'character'

where

decimal-digits: is a sequence of characters using only the digits 0 to 9.
hexadecimal-digits: is a sequence of characters using only the digits 0 to 9 and the letters A to F or a to f.
n_: is a single digit between 2 and 9 inclusive, followed by an underscore character.
base-n-digits: is a sequence of characters using only the digits 0 to (n – 1)
character: is any single character except a single quote. Use \' if you require a single quote. In this case the value of the numeric literal is the numeric code of the character.

You must not use any other characters. The sequence of characters must evaluate to an integer in the range 0 to 2³² – 1 (except in DCQ and DCQU directives, where the range is 0 to 2⁶⁴ – 1).

Examples

a       SETA    34906

addr    DCD     0xA10E

        LDR     r4,=&1000000F

        DCD     2_11001010

c3      SETA    8_74007

        DCQ     0x0123456789abcdef
        LDR     r1,='A'             ; pseudo-instruction loading 65 into r1
        ADD     r3,r2,#'\''         ; add 39 to contents of r2, result to r3

Copyright © 2003, 2004 ARM Limited. All rights reserved.	ARM DUI 0231B
Non-Confidential
PDF version