x86程序集以编程方式确定字节序 [英] x86 assembly to programmatically determine endianess

问题描述

我了解到Intel x86是低端格式的.但是，我该如何编写程序集来以编程方式确定处理器的耐久性?

I understand that Intel x86 is little endian. However, how would I write assembly to programmatically determine the endianess of a processor?

推荐答案

存储一个单词，该单词的两个字节均具有不同的值(例如， 0x0001 ).从相同的地址加载一个字节，然后检查它与原始单词的哪个字节匹配.

Store a word that has different values for each of it’s two bytes (0x0001, for example). Load a byte from the same address and check to see which byte of the original word it matches.

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