Assembler User Guide

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Assembler User Guide

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Overview of the Assembler

Overview of the ARM Architecture

Structure of Assembly Language Modules

Writing ARM Assembly Language

Unified Assembler Language

Subroutines calls

Load immediates into registers

Load immediate values using MOV and MVN

Load 32-bit values to a register using MOV32

Load immediate 32-bit values to a register using L

Load addresses into registers

Load addresses to a register using ADR

Load addresses to a register using ADRL

Load addresses to a register using LDR Rd, =label

Other ways to load and store registers

Load and store multiple register instructions

Load and store multiple instructions available in

Stack implementation using LDM and STM

Stack operations for nested subroutines

Block copy with LDM and STM

Memory accesses

Read-Modify-Write procedure

Test-and-branch macro example

Unsigned integer division macro example

Instruction and directive relocations

Symbol versions

Frame directives

Exception tables and Unwind tables

Assembly language changes after RVCTv2.1

Condition Codes

Using the Assembler

Symbols, Literals, Expressions, and Operators

VFP Programming

Writing ARM Assembly Language

ARM Compiler toolchain v5.02 for µVision Using the Assembler

Home > Writing ARM Assembly Language

Writing ARM Assembly Language

The following topics describe the use of a few basic assembler instructions and the use of macros:

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