A Given the operation table and the circuit provided above t
     A Given the operation table and the circuit provided above, till out the operation table (or the multi-function register\'s internal ALU:      
 
  
  Solution
Explanation:
| opcode[2]/SUB | opcode[1]/ADD | opcode[0]/LD | F | Operation | 
| 0 | 0 | 0 | Q | No change | 
| 0 | 0 | 1 | A | Buffer | 
| 0 | 1 | 0 | Q+A | Addition | 
| 1 | 0 | 0 | Q-A | Subtraction | 

