Agner Fog, a Danish expert in software optimization ismaking a pleafor an open and standarized procedure for x86 instruction set extensions. Af first sight, this may seem a discussion that does not concern most of us. After all, the poor souls that have to program the insanely complex x86 ...
Main article: AES instruction set(主条目:AES指令集) 8.8 APX(高级性能扩展) | APX (Advanced Performance Extensions) APX (Advanced Performance Extensions) are extensions to double the number of general-purpose registers from 16 to 32 and add new features to improve general-purpose performance.[53]...
Enables Intel Advanced Vector Extensions 2. /arch:AVX512 Enables Intel Advanced Vector Extensions 512. /arch:AVX10.1 Enables Intel Advanced Vector Extensions 10 version 1. Remarks The/archoption enables or disables the use of certain instruction set extensions, particularly for vector calculation, avai...
这些子集都是 64 位,但它们新添加了诸如 SIMD(单指令多数据(Single Instruction Multiple Data))指令等功能。 x86_64-v1:这是大多数人都熟知的基础x86_64ISA。当人们谈论x86_64时,他们通常指的就是x86_64-v1ISA。 x86_64-v2:此版本新增了更多如 SSE3(流式 SIMD 扩展版本 3(Streaming SIMD Extensions 3)...
Conventions for Streaming SIMD Extensions". A procedure can rely on EBX, ESI, EDI, EBP and all segment registers being unchanged across a call to another procedure. 2. Register usage in Linux The rules for register usage in Linux appear to be almost the same as for 32-bit windows. ...
/arch:AVX2 Enables Intel Advanced Vector Extensions 2./arch:AVX512 Enables Intel Advanced Vector Extensions 512./arch:AVX10.1 Enables Intel Advanced Vector Extensions 10 version 1.RemarksThe /arch option enables or disables the use of certain instruction set extensions, particularly for vector ...
◈ x86_64-v3:除了基础指令外,还新增了像 AVX( 高级矢量扩展(Advance Vector eXtensions))和 AVX2 等指令。这些指令可以使用高达 256 位宽的 CPU 寄存器!如果你能够有效利用它们,就能大规模并行处理计算任务。 ◈ x86_64-v4:这个版本在 x86_64-v3 ISA 的基础上,迭代了更多的 SIMD 指令扩展,比如 AVX256 ...
指令集计算机,Complex Instruction Set Computer)。字组(word, 4字节)长度的存储器访问允许不对齐存储器地址,字组是以低位字节在前的顺序储存在存储器中。向前兼容性一直都是在x86架构的发展背后一股驱动力量(设计的需要决定了这项因素而常常导致批评,尤其是来自对手处理器的拥护者和理论界,他们对于一个被广泛认为是...
(5)Opcode Extensions Group Number:例如 Grp 2 (intel的前面可能会有对该组的描述性文字如 Immediate) (6)Prefix:例如Operand Size (Prefix) (7)REX Prefix:例如REX.X 类型说明 (8 ) 描述性文字:例如word、double-word or quad-word register with rAX ...
x86架构是重要的可变指令长度的CISC(复杂指令集计算机,Complex Instruction Set Computer)。字组(word, 4字节)长度的存储器访问允许不对齐存储器地址,字组是以低位字节在前的顺序储存在存储器中。x86架构在设计过程中着重考虑了向前兼容性,保证电脑能继续运行以往开发的各类应用程序以保护和继承丰富的软 件资源。但在...