ARM Architecture Reference Manual ARMv7-A and ARMv7-R edition

Using this manual
The information in this manual is organized into four parts, as described below.
Part A, Application Level Architecture
Part A describes the application level view of the architecture. It contains the following chapters:
Preface
Chapter A1 Gives a brief overview of the ARM architecture, and the ARM and Thumb instruction sets.
Chapter A2 Describes the application level view of the ARM programmers’ model, including the
application level view of the Advanced SIMD and VFP extensions. It describes the types of
value that ARM instructions operate on, the general-purpose registers that contain those
values, and the Application Program Status Register.
Chapter A3 Describes the application level view of the memory model, including the ARM memory
types and attributes, and memory access control.
Chapter A4 Describes the range of instructions available in the ARM, Thumb, Advanced SIMD, and
VFP instruction sets. It also contains some details of instruction operation, where these are
common to several instructions.
Chapter A5 Gives details of the encoding of the ARM instruction set.
Chapter A6 Gives details of the encoding of the Thumb instruction set.
Chapter A7 Gives details of the encoding of the Advanced SIMD and VFP instruction sets.
Chapter A8 Provides detailed reference information about every instruction available in the Thumb,
ARM, Advanced SIMD, and VFP instruction sets, with the exception of information only
relevant in privileged modes.
Chapter A9 Provides detailed reference information about the ThumbEE (Execution Environment)
variant of the Thumb instruction set.
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