申論題

2. (6%) For the code sequence below, assume the two bne instructions are predicted as taken, but actually they are not taken. How many cycles does it take to complete the execution of the code by using the two CPUs below, respectively? For each CPU, please also identify which cycle(s) will become bubble (i.e., stall cycle) when executes the code (Note: the first instruction: "Iw $tO, $s1, $s2" starts from cycle 1). 

Express your answer as the following table: