In computing, an opcode (abbreviated from operation code) [1][2] is an enumerated value that specifies the operation to be performed. Opcodes are employed in hardware devices such as arithmetic logic …

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Sep 23, 2011 · An opcode is the first byte of an instruction in machine language which tells the hardware what operation needs to be performed with this instruction. Every processor/controller has its own set …

The opcode is the part of a machine language instruction that specifies the operation the CPU is supposed to carry out. It is usually located in the most significant bits of the instruction and is …

Jul 23, 2025 · Opcode containing 4 bits (for DP) and 6 bits (for DT) indicates the type of operation that the instruction performs. (Ex: Addition, Subtraction, etc. in case of DP and Load or Store in case of DT).

Dec 20, 2025 · In computing, an opcode (abbreviated from operation code) is an enumerated value that specifies the operation to be performed.

Apr 9, 2026 · Opcodes are optional commands, or vector instructions, that execute on a per-vector basis after the vector executes. Opcodes can change the execution of the pattern or the interaction with …

An **opcode** (short for **operation code**) is the **binary or hexadecimal representation** of a single instruction that a **central processing unit (CPU)** can execute.

Jul 14, 2013 · As its name suggests, the opcode is a type of code that tells the machine what to do, i.e. what operation to perform. Opcode is a type of machine language instruction.