Chapter 2 – Instruction Set Architecture (ISA)

Areas covered are:

a. Memory Locations

b. Memory operations

c. Instruction classification

d. Addressing modes

e. Instruction types

a. Memory locations: Memory hierarchy (registers, cache, main memory); memory address register (MAR); memory data register (MDR); what is a word?

b. Memory operations: read; write

c. Instruction classification: 3-address; 2-address; 1.5-address; 1-address; zero address

d. Addressing modes: Immediate; direct (absolute); indirect; indexed; indirect; autoincrement; autodecrement

e. Instruction types: Data movement; arithmetic and logical; sequencing; input/output