CS 3853 Computer Architecture Chapter 3 Section 4 Example Answers

Modification 1: Only one add reservation station

Instruction		Reservation
Station		Execution
Unit		 Issue
Cycle		Ex Start
Cycle		Ex End
Cycle		 Memory
Cycle		CDB
cycle		Write
dest
L.D    F6,32(R2)Load1ALU12234F6
L.D    F2,44(R3)Load2ALU23345F2
MUL.DF0,F2,F4Mult1fmul361516F0
SUB.DF8,F2,F6Add1fadd4678F8
DIV.DF10,F0,F6Mult2fmul5175657F10
ADD.DF6,F8,F2Add1fadd9101112F6
Note: The only change is to the last instruction which cannot issue until the Add1 RS is available in cycle 9