2. (10 points) Suppose you have a load/store computer as described above with the following instruction mix: o.of Clock cycles per ALU ops Loads Stores Branches 35% 25% 15% 25% (a) Compute the CPI. Show all your work. (b) We observe that 25% of the ALU ops are paired with a load, and we propose to replace these ALU ops and their loads with a new instruction. The new instruction takes l clock cycle. With the new instruction added, branches take 5 clock cycles. Compute the CPI for the new version. Show all your work. (c) If the clock rate for the new version is 30% faster than the old version, which version is faster and by what percent? Justify your answer quantitatively by comparing expressions for CPU Execution time. Show all your work