Questions

Using the basic $5-$stage pipeline described in section $4\mathrm{.}5,$ refer to the following sequence of instructions:

or s$1,$ s$2,$ s$3$ or s$2,$ s$1,$ s$4$ or s$1,$ s$1,$ s$2$

Also, assume the following cycle times for each of the options related to forwarding:

Without ForwardingWith Full ForwardingWith ALU$-$ALU Forwarding Only$250$ps$300$ps$290$ps

Assume there is no forwarding in this pipelines processor. Add NOP instructions to eliminate any hazards.Assume there is full forwarding. Add NOP instructions to eliminate any hazards.What is the total execution time of this instruction sequence without forwarding and will full forwarding? What is the speedup achieved by adding full forwarding to a pipeline that had no forwarding?Add NOP instructions to this code to eliminate hazards if there is ALU$-$ALU forwarding only. $($no forwarding from the MEM to the EX stage$)$