if we take rics processor with 5 stage 1. fetch 2. operand fetch and decode 3. execute 4.memory access 5. write back
if we use operand forwarding then
F OF EX MA WB
F OF EX MA WB
here operand forwarding take place from execute stage to operand fetch
But if not use
then
F OF EX MA WB
F OF EX MA WB