GENERAL KNOWLEDGE

Detailed explanation-1: -In computing, an opcode (abbreviated from operation code, also known as instruction machine code, instruction code, instruction syllable, instruction parcel or opstring) is the portion of a machine language instruction that specifies the operation to be performed.

Detailed explanation-2: -Each microprocessor is designed to operate on a specific set of instructions defined in its instruction set architecture. Instructions (represented as hexadecimal or binary values) are also called machine code.

Detailed explanation-3: -The operation code of an instruction is a group of bits that define operations such as addition, subtraction, shift, complement, etc. An instruction must also include one or more operands, which indicate the registers and/or memory addresses from which data is taken or to which data is deposited.