Editing Machine code (section)

==Assembly languages==
{{main|Assembly language}}
[[File:Machine language and assembly language.jpg|thumb|319x319px|Translation of assembly language into machine language]]
A much more human-friendly rendition of machine language, named [[assembly language]], uses [[Assembly language#Opcode mnemonics and extended mnemonics|mnemonic code]]s to refer to machine code instructions, rather than using the instructions' numeric values directly, and uses [[Symbol table|symbolic names]] to refer to storage locations and sometimes [[Processor register|registers]].<ref name="Dourish_2004"/> For example, on the [[Zilog Z80]] processor, the machine code <code>00000101</code>, which causes the CPU to decrement the <code>B</code> [[general-purpose register]], would be represented in assembly language as <code>DEC B</code>.<ref name="Zaks_1982"/>