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ARM DDI 0192A
Copyright © ARM Limited 1997, 1998, 2000. All rights reserved.
2-1
Chapter 2
Programmer’s Model
This chapter describes the ARM720T programmer’s model. It contains the following
sections:
•
Processor operating states on page 2-2
•
Memory formats on page 2-3
•
Instruction length on page 2-5
•
Data types on page 2-6
•
Operating modes on page 2-7
•
Registers on page 2-8
•
The Thumb state register set is a subset of the ARM state set. You have direct
access to: on page 2-10
•
The program status registers on page 2-13
•
Exceptions on page 2-16
•
Reset on page 2-23
•
Relocation of low virtual addresses by the FCSE PID on page 2-22
•
Implementation-defined behavior of instructions on page 2-24.
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