Cortex-A8 R2P2.pdf - ARM Information Center

Introduction1.2 ARMv7-A architectureThe processor implements ARMv7-A that includes the following features:• ARM Thumb ® -2 instruction set for overall code density comparable with Thumband performance comparable with ARM instructions.• Thumb Execution Environment (ThumbEE) to provide execution environmentacceleration.• Security Extensions architecture for enhanced security features that facilitate thedevelopment of secure applications.• Advanced SIMD architecture extension to accelerate the performance ofmultimedia applications such as 3-D graphics and image processing.Note— The Advanced SIMD architecture extension, its associatedimplementations, and supporting software, are commonly referred to asNEON technology.— This document uses the older assembler language instruction mnemonics.See Appendix B Instruction Mnemonics for information about the UnifiedAssembler Language (UAL) equivalents of the Advanced SIMD instructionmnemonics. See the ARM Architecture Reference Manual for moreinformation on the UAL syntax.• Vector Floating Point v3 (VFPv3) architecture for floating-point computation thatis fully compliant with the IEEE 754 standard.NoteThis document uses the older assembler language instruction mnemonics. SeeAppendix B Instruction Mnemonics for information about the Unified AssemblerLanguage (UAL) equivalents of the VFP data-processing instruction mnemonics.See the ARM Architecture Reference Manual for more information on the UALsyntax.See the ARM Architecture Reference Manual for more information on the ARMv7-Aarchitecture.ARM DDI 0344E Copyright © 2006-2008 ARM Limited. All rights reserved. 1-3