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Operations Code
In computing, “Operations Code,” often shortened to “opcode,” refers to a code (typically a number or a sequence of bits) that specifies the operation to be performed by a CPU or other processing unit. It’s essentially an instruction that tells the machine what to do, such as add, subtract, move data, or jump to a different part of the program.
Purpose: Opcode defines the action an instruction performs.
Format: In machine language, an instruction typically includes an opcode field and other fields like operand addresses (which specify the data the operation will work on).
Examples:
Opcodes can include instructions like “ADD,” “SUB,” “LOAD,” “STORE,” “JUMP,” and many more.
- Hardware vs. Software:
Opcode can be used in hardware (like in ALUs) and software (as part of a machine language instruction set).
- Operational Code (Non-Opcode Context):In some contexts, “operations code” or “operational code” can also refer to the code that manages and executes operational procedures, such as defining escalation policies or running playbooks, according to DevOps.com. This is often associated with “operations as code”, which extends infrastructure as code (IaC) principles to operational tasks.
Definition
Code composed largely of words and phrases suitable for general communications use.
SOURCE: CNSSI-4009
