opkoder
Opkoder (singular: opkode) is the set of codes that specify the operation to be performed by a computer's processor in a machine language instruction. In most instruction set architectures, a processor instruction is composed of an opcode field plus one or more operands and sometimes addressing-mode information. The opcode determines the basic operation (for example, add, load, store, jump) that the processor should perform; operands indicate the data or addresses to use, and addressing modes define how to interpret those operands.
Encoding and structure: The size and layout of opcodes vary by architecture. Some use fixed-width instructions
Role and usage: Opkoder are central to machine language, assembly language, and the design of software tools
History and terminology: The term opkoder derives from op-code, and in Danish-language literature is the standard