12. Consider the following code sequence. Load r1.(r0,#0) add r1 r1,r1 load r2.(r0,#4) mul rl,r1,r2 load r2, (r0,#8) mul r1,r1,r2 load r2.(r0,#12) mul r1,r1,r2 str rl.(r0,#0) Assume the latencies for the instructions are load - 3, add - 1, mul - 2. Calculate the number of clock cycles required to perform the above code? (4) Reschedule the code and indicate how many clock cycles were reduced on rescheduling. (6)