CS 2734 Computer Organization II

• Introduce the simple one register machine:
  • LOAD M
  • STORE M
  • ADD M
  • SUB M
  • MUL M
  • DIV M
  What kind of hardware is needed to support this machine?
  How is a stored program retrieved and executed?
  
• Machine instruction cycle.
  1. Fetch the instruction.
  2. Increment the program counter.
  3. Decode the instruction.
  4. Decode the operands.
  5. Fetch the operands if any.
  6. Execute the instruction.
  7. Store the results.
  8. Go to step 1.
• Start binary arithmetic.