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Home > Symbols, Literals, Expressions, and Operators > Numeric literals |

Numeric literals can take any of the following forms:

`decimal-digits`

`0x`

`hexadecimal-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 (

-1)`n`

`character`

Is any single character except a single quote. Use the standard C escape character (\') if you require a single quote. The character must be enclosed within opening and closing single quotes. 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 2^{32}-1
(except in `DCQ`

and `DCQU`

directives, where
the range is 0 to 2^{64}-1).

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

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