For each of the following instructions answer questions: (a) Which register(s) w

Question

For each of the following instructions answer questions: (a) Which register(s) will be read during the ID stage? (b) Which register(s) will be written during the WB stage? (c) During which stage(s) does the CPU become idle?

                3.1         lw           $t1,        8($s0)

                3.2         sll            $t0,        $t0,        2

                3.3         add        $t1,        $s1,        $s2

                3.4          bne        $t1,        $s0,        EXIT

Explanation / Answer

(a) Accumulator

(b) Accumulator

(c) WB stage

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