Machine language vs. assembly language

最新推荐文章于 2025-12-18 16:14:31 发布

翻译最新推荐文章于 2025-12-18 16:14:31 发布 · 273 阅读

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本文介绍了机器语言和汇编语言的区别。机器语言直接处理比特级的指令编码，而汇编语言通过为机器指令引入助记符来降低编程错误的风险。以MIPS CPU为例，展示了相同操作在两种语言中的不同表示形式。

Machine language vs. assembly language
Realmachine language level programming means to handle the bit ncodings of machine instructions
Example(MIPS CPU: addition$t0←$t0+$t1):
1000010010100000000100000
Assembly languageintroduces symbolic names (mnemonics) for machine instructions and makes programming less error-prone:
Example(MIPS CPU: addition$t0←$t0+$t1):

add $t0, $t0, $t1

Anassemblertranslates mnemonics into machine instructions
–Normally: mnemonic
1:1
←→machine instruction
–Also: the assembler supportspseudo instructionswhich are translated
into series of machine instructions (mnemonic
1:n
←→machine instruction)