Opcode Definition

opcodes
noun

(computing) A mnemonic used to refer to a microprocessor instruction in assembly language.

Wiktionary
Advertisement
other
Short for Operation Code, which is the part of an instruction in machine language to specify the operation to be performed. A complete machine language instruction consists of an opcode and zero or more operands with which the specified operation is performed. Examples are “add memory location A to memory location B,” or “store the number five in memory location C.” “Add” and “Store” are the opcodes in these examples. Because virus scanners try to detect and remove malicious patterns of machine instructions, virus writers have now turned to metamorphic viruses that rewrite themselves using equivalent opcodes, or that re-order the machine instructions to achieve the same computational result while at the same time avoiding detection.
Webster's New World Hacker
Advertisement

Other Word Forms of Opcode

Noun

Singular:
Opcode
Plural:
opcodes

Origin of Opcode

  • op +"Ž code (in sense of operation)

    From Wiktionary

Find Similar Words

Find similar words to Opcode using the buttons below.

Words Starting With

Words Ending With

Unscrambles

Opcode
Advertisement