OPCODES and Operation Instructions

Brendan Massey
7 min readJun 28, 2021

Opcodes — or operation codes — tells the computer what operation it is supposed to perform next. These opcodes have various categories, which will enumerate and explain here.

Operate Instructions:

Operate instructions involve processing and manipulating data. This is the instruction set that would contain things like ADD, AND, OR, NOT, SUB, MULT, DIV.

So, how do we identify these instructions? Let’s begin and follow an alphabetical order. We will split these into two categories: Arithmetic and Logic.

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Brendan Massey

I write about programming and computer science as well as review Coursera courses I have taken related to the aforementioned topics.