Instruction Set Architecture (ISA)
- is a set of opcodes
- an ISA specifies the behavior of opcodes running on implementations (i.e. microarchitecture) of that ISA in a fashion that does not depend on the characteristics of that implementation
ISA - How it Relates to Opcodes, Assembly Language, & Machine Code
see: Instruction
ISA - Classifications
An ISA may be classified in a number of different ways
classification by complexity:
other classifications: