Opcode: Difference between revisions

Revision as of 04:47, 5 July 2005

Revision as of 09:21, 25 August 2005

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{{cleanup-date|June 2005}}

Opcode stands for '''Op'''eration '''Code'''. Opcodes operate on [[processor register|registers]], values in [[memory]], values stored on the [[Stack (computing)|stack]], [[I/O]] ports, the [[Computer bus|bus]], etc. They are used to perform arithmetic operations and move and change values. [[Operands]] are the things that opcodes operate on. [[Microprocessors]] perform operations using binary [[bit|bits]]. A [[bit]] is either on (1) or off (0). Eight [[bit|bits]] is equal to a [[byte]] (on most modern processors), and two bytes is equal to a word.

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* [[Machine language]]

[[Category:Computing]]

[[fr:Opcode]]

[[Category:Computing]]