Project 1, Project 3, and Project 5

ITT 432 Project 5 Due: Mar, 27, 2013 Name________________________

Execute the following instructions in the pipelined datapath for five clock cycles.

Initial status: $s1=20, $s2=100, $s3=50, $s4=30, $s5=10, $s6=30, mem[40] = 60, mem[44] = 70, PC = 400

(a) Write down only the instruction name (lw, sub, etc.) on top of each stage of the pipeline.

(b) List input and output values of all participating blocks.

400 lw $s7, 20($s1)

404 sub $s6, $s2, $s3

408 add $s5, $s3, $s4

412 lw $s4, 24 ($s1)

416 add $s3, $s5, $s6

CC1

CC2

CC3

\

CC4

CC5