a$.$ A processor has to execute a program with the following instructions mic:

$\backslash$table$[[$Operation$,$Frequency,Clock cycles per instruction $($CPI$)],[$ALU$,40\%,2],[$Load$,20\%,10],[$Store$,15\%,4],[$Branches$,25\%,3]]$

The average clock cycles per instruction is

$4\mathrm{.}15$

correct to $2$ decimal places.

b$.$ A designer wants to improve the performance of this processor so he designs a new execution unit with the following adjustments:

$80\%$ of ALU operations take only $1$ cycle to execute and the other $20\%$ still take $2$ cycles to execute.

$95\%$ of the load instructions take only $2$ cycles to execute, while the remaining $5\%$ take $10$ cycles to execute.

A store instruction takes $2$ cycles to execute. Compute the new average cycles per instruction

Branches remain the same

The average CPI for this new processor is

correct to $2$ decimal places.

c$.$ Assuming clock rate and instruction count remains unchanged, what is the speedup factor by which the performance has improved bas

CPI $($correct to $2$ decimal places$)?$