V2EX little-endian

Little-endian

Definition / 释义

(计算机)小端序:一种字节序(byte order)。在多字节数据(如 16/32/64 位整数)存储到内存时,最低有效字节(LSB)放在最低地址,较高有效字节依次放在更高地址。(还有相对的 big-endian 等其他字节序。)

Pronunciation / 发音

/ltl ndin/

Examples / 例句

This CPU uses little-endian byte order.
这款 CPU 使用小端序字节顺序。

When parsing a binary file, you must know whether the integers are stored in little-endian format, or the values will be misread.
解析二进制文件时,你必须知道整数是否以小端序存储,否则数值会被读错。

Etymology / 词源

endian 一词最早借用自乔纳森斯威夫特(Jonathan Swift)的讽刺小说《格列佛游记》中关于“从大端/小端打鸡蛋”的争论(Big-Endian / Little-Endian)。在计算机领域里,“big-endian / little-endian” 用来比喻并命名不同的字节排列方式;该术语在现代计算机与网络工程语境中广泛流行,与早期关于数据表示与传输一致性的讨论密切相关。

Related Words / 相关词

Literary Works / 文学作品

  • 《Computer Organization and Design》(Patterson & Hennessy)在数据表示与体系结构章节讨论字节序(含 little-endian)。
  • 《The Linux Programming Interface》(Michael Kerrisk)在系统编程与二进制数据处理语境中涉及端序问题。
  • 《TCP/IP Illustrated, Volume 1》(W. Richard Stevens)讲解网络字节序(通常为 big-endian)时常对比 little-endian。
  • 《Computer Systems: A Programmer’s Perspective》(Bryant & O’Hallaron)在机器级表示与内存布局部分讲解 little-endian 的存储方式。
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