ARM V8-A架构参考手册:版权与使用指南

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ARM Architecture Reference Manual (V8-A) 是一份详尽的文档,专为ARMv8-A架构设计,由ARM Limited于2013年发布。该手册旨在提供ARMv8架构的详细参考,包括其特性和指令集。ARMv8-A是ARMv8架构的一个特定实现,它在移动设备、嵌入式系统和服务器等广泛领域中占有重要地位。 文档版权严格保护,所有权利归ARM Limited所有。未经明确书面许可,不得以任何形式复制或实施文档中的信息,除非是为了商业目的。这份文档包含了非公开的Beta版本,标明了ID122413,意味着它可能还处于发展阶段,可能会有后续更新或改进。 该手册的内容涵盖了ARM架构的基础概念,如处理器内核设计、指令集体系结构(ISA)、内存管理、异常处理、向量运算和SIMD(Single Instruction Multiple Data)处理等核心特性。对于开发者来说,这是一本宝贵的工具书,可以帮助他们理解和利用ARMv8-A的性能优势,编写高效能的代码。 此外,手册还涉及到了安全性相关的内容,强调了用户在访问和使用这些信息时必须接受的条件,即不得用于未经授权的用途,特别是用于解密、逆向工程或其他非法活动。任何对ARM知识产权的使用都需遵循文档中明确规定的许可条款。 ARM Architecture Reference Manual (V8-A) 是一个深入学习和开发基于ARMv8-A架构设备的必备参考资料,不仅适合硬件工程师、软件开发人员,也对系统架构设计师和嵌入式系统研究者具有重要意义。通过阅读和理解这份手册,开发者能够更好地掌握ARMv8-A的底层工作原理,提升应用程序的性能和兼容性。
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This manual describes the ARM® architecture v8, ARMv8. The architecture describes the operation of an ARMv8-A Processing element (PE), and this manual includes descriptions of: • The two Execution states, AArch64 and AArch32. • The instruction sets: — In AArch32 state, the A32 and T32 instruction sets, that are compatible with earlier versions of the ARM architecture. — In AArch64 state, the A64 instruction set. • The states that determine how a PE operates, including the current Exception level and Security state, and in AArch32 state the PE mode. • The Exception model. • The interprocessing model, that supports transitioning between AArch64 state and AArch32 state. • The memory model, that defines memory ordering and memory management. This manual covers a single architecture profile, ARMv8-A, that defines a Virtual Memory System Architecture (VMSA). • The programmers’ model, and its interfaces to System registers that control most PE and memory system features, and provide status information. • The Advanced SIMD and floating-point instructions, that provide high-performance: — Single-precision and double-precision floating-point operations. — Conversions between double-precision, single-precision, and half-precision floating-point values. — Integer, single-precision floating-point, and in A64, double-precision vector operations in all instruction sets. — Double-precision floating-point vector operations in the A64 instruction set. • The security model, that provides two security states to support secure applications. • The virtualization model, that support the virtualization of Non-secure operation. • The Debug architecture, that provides software access to debug features.