Consider the following program:

program pipeline $4$

a$=10$

b$=20$

c$=30$

d$=40$

c$=$c$-$b

d$=$c$+$b

d$=$b$+1$

a$=$d$-$c

end

Compile the code and load it in CPU$-$OS simulator. Perform the following:

Execute the above program using non$-$pipelined processor and pipelined processor

and answer the following questions.

Note: Everv time flush the pipeline before running the code

A$)$ Non$-$pipelined Processor:

To enable non$-$pipelined processor, check $"$No instruction pipeline" check box in control panel.

a$)$ How many stages are there in non$-$pipelined processor? List them.

b$)$ Fill in the following after executing of above program using non$-$pipelined processor.

c$)$ What are the contents of General$-$purpose registers after the execution of the program?

B$)$ Pipelined processor:

To use, enable pipelined processor, uncheck $"$No instruction pipeline" check box in control panel.

a$)$ Fill in the following table with respect to pipelined processor execution of the above program:

b$)$ Is there a way to improve the CPI and Speed up factor? If so give the solution.