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Assembler User Guide
Preface
Overview of the Assembler
Overview of the ARM Architecture
Structure of Assembly Language Modules
Writing ARM Assembly Language
Condition Codes
Using the Assembler
Symbols, Literals, Expressions, and Operators
Symbol naming rules
Variables
Numeric constants
Assembly time substitution of variables
Register-relative and PC-relative expressions
Labels
Labels for PC-relative addresses
Labels for register-relative addresses
Labels for absolute addresses
Numeric local labels
Syntax of numeric local labels
String expressions
String literals
Numeric expressions
Syntax of numeric literals
Syntax of floating-point literals
Logical expressions
Logical literals
Unary operators
Binary operators
Multiplicative operators
String manipulation operators
Shift operators
Addition, subtraction, and logical operators
Relational operators
Boolean operators
Operator precedence
Difference between operator precedence in assembly
VFP Programming
Assembler Command-line Options
ARM and Thumb Instructions
VFP Instructions
Directives Reference
Via File Syntax
Labels for absolute addresses
| Non-Confidential |  PDF version | ARM DUI0379H | ||
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| Home > Symbols, Literals, Expressions, and Operators > Labels for absolute addresses | ||||
7.9 Labels for absolute addresses
A label can represent the absolute address of code or data.
These labels are numeric constants in the range 0 to 232-1. They address the memory directly. You can use labels to
represent absolute addresses using the
EQU directive. To
ensure that the labels are used correctly when referenced in code, you can specify the
absolute address as:- Thumb code with the
THUMBdirective. - Data.
Example of defining labels for absolute address
abc EQU 2 ; assigns the value 2 to the symbol abc
xyz EQU label+8 ; assigns the address (label+8) to the symbol xyz
fiq EQU 0x1C, THUMB ; assigns the absolute address 0x1C to the symbol fiq
; and marks it as THUMB code
Related concepts
Related reference
| Non-Confidential | PDF version | ARM DUI0379H |
| Copyright © 2007, 2008, 2011, 2012, 2014-2016 ARM. All rights reserved. |
| Home > Symbols, Literals, Expressions, and Operators > Labels for absolute addresses |
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