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  1. CPUID 指令是一条 x86 架构中的的扩展指令(此处的扩展指相对i 80386 ),其操作码助记符缩写于“CPU识别”(CPU Identification),其作用是返回特定的 CPU 信息,使得 软件 可以在运行时检测CPU的硬件特性,以便于识别并决定运行哪些代码。
    CPUID 指令是一條 x86 架構中的的擴充指令(此處的擴充指相對i 80386 ),其操作碼輔助記憶碼縮寫於「CPU辨識」(CPU Identification),其作用是返回特定的 CPU 資訊,使得 軟體 可以在執行時檢測CPU的硬體特性,以便於辨識並決定執行哪些代碼。
    x86芯片结构中,CPUID是处理器提供的一个指令操作码,能够让软件利用它分析出处理器的信息。 比如,一个程序可以使用CPUID查看处理器的类型和是否能够使用MMX/SSE指令集。
    zhuanlan.zhihu.com/p/596722352
    cpuid就是一条读取CPU各种信息的一条指令,大概是从80486的某个版本开始就存在了。 似乎是从80386开始,当CPU被RESET以后,CPU会在EDX寄存器中返回一个32bits的CPU签名(Processor Identification Signature),但这时候CPU还没有CPUID这条指令,后来出现了这条指令后,软件无需以来CPU复位就可以读出这个CPU签名,同时还可以读出很多CPU的相关信息。 CPUID这条指令,除了用于识别CPU(CPU的型号、家族、类型等),还可以读出CPU支持的功能(比如是否支持MMX,是否支持4MB的页等等),内容的确是十分丰富。
    www.cnblogs.com/jszyx/p/14711618.html
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    In the x86 architecture, the CPUID instruction (identified by a CPUID opcode) is a processor supplementary instruction (its name derived from CPU Identification) allowing software to discover details of the processor. It was introduced by Intel in 1993 with the launch of the Pentium and SL-enhanced 486 … See more

    Prior to the general availability of the CPUID instruction, programmers would write esoteric machine code which exploited minor … See more

    Inline assembly
    This information is easy to access from other languages as well. For instance, the C code for gcc … See more

    CPU-Z, a Windows utility that uses CPUID to identify various system settings
    CPU-X, an alternative of CPU-Z for Linux and FreeBSD See more

    • Intel Processor Identification and the CPUID Instruction (Application Note 485), last published version. Said to be incorporated into the See more

    The CPUID opcode is 0F A2.
    In assembly language, the CPUID instruction takes no parameters as CPUID implicitly uses the EAX register to determine the main … See more

    Some of the non-x86 CPU architectures also provide certain forms of structured information about the processor's abilities, commonly as a set … See more

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  4. WEBDec 14, 2015 · There are three programs on Linux operating system that can provide CPUID information and these tools are useful to find out if …

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  5. WEBApr 12, 2022 · Intel x86_64 CPUID指令介绍. 文章浏览阅读9.9k次点赞15次收藏29次。. 本文章主要描述了intel x86_64 cpuid指令的相关功能,并在Linux给出了在应用层和内核态获取cpu相关信息的简单实例。.

  6. Intel CPU的CPUID指令(一) - 羽行 - 博客园

  7. CPUID命令によるCPUの性能・機能の把握 - CodeZine

    WEBSep 22, 2005 · cpuid命令プロセッサ識別cpuの基本的な命令コードであるmov命令データ移動やadd命令加算)、in/out命令外部入出力と同じくインテル系のcpuには必ず実装されている命令コー

  8. 如何在 Linux 中检查或查找 CPU 信息