Computer Science - Operating Systems Concepts - Discussion

The part of a machine-level instruction that tells the central processor what has to be done is called the operation code (opcode). The opcode specifies the particular operation or action that the processor needs to perform, such as addition, subtraction, loading data from memory, or storing data to memory.

The opcode is a binary code that represents the specific operation to be executed by the processor. It is usually located in the instruction's binary representation at a specific position, allowing the processor to easily identify and interpret the desired operation.

In summary, the operation code (opcode) is the part of a machine-level instruction that informs the central processor about the specific action or operation it needs to perform.

Op code is understandable language for processor.

This is opcode so opcode is understanding machine language.

What is explanation this question will problem?

The answer is the operation code. Because it is a machine level code that is controlled by a control unit which controls the operations of the central processor.

Yes, as an instruction has two parts, opcode and operands out of which opcode is the operation code which operates on the operands.

Operation code is correct answer.

For example,
ADD A, B.

Here ADD is an OPERATIONAL CODE (OP CODE) which performs addition of A and B and this is an INSTRUCTION to the PROCESSOR to do.

Explain it?

Operation code instruct processor to perform to operation.