Arithmetic Logic Unit (ALU) - Yousef's Notes
Arithmetic Logic Unit (ALU)

Arithmetic Logic Unit (ALU)

The Arithmetic and Logic Unit is the heart of the CPU.

  1. It takes an instruction code from memory (Fetch) and
  2. connects the operation represented by that code to the registers or memory that holds the inputs and that will hold the results (Decode)
  3. then the operation is executed (Issue).