op code


Also found in: Dictionary, Thesaurus, Acronyms.
Related to op code: operation code, Instruction code

op code

This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)

operation code

The part of a machine instruction that tells the computer what to do, such as input, add or branch. The operation code is the verb; the operands are the nouns.
Copyright © 1981-2019 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.
References in periodicals archive ?
The Op code for multiplication is A4 H and that of division is 84 H.
The first digit is the operation code (op code) which determines what kind of action the computer should take, such as add, jump, load, or store.
A 1- or 2-byte op code tells the V2 chip what to do.