add $2, $2, $3

or $5, $4, $3

sub $1, $2, $4

lw $3, 4($1)

lw $4, 0($3)

Consider these statistics: Fetch 0.5 ns 0.5 ns Decode 0.3 ns 0.3 ns Execute 0.5ns 0.6 ns Memor 0.5 ns 0.5 ns Writebaclk 0.3 ns 0.3 ns Pipeline 1 Pipeline 2 A. What is the CPI of the first pipeline operating on the given program? B. What is the CPI of the second pipeline operating on the given program? C. Why do you think that the critical path of the execute stage is higher in Pipeline 2? D. What is the maximum clock frequency of Pipeline 1? E. What is the maximum clock frequency of Pipeline 2? F. What is the speedup of Pipeline 2 over Pipeline 1