$5.($a$)$ Examine the difficulty of adding a proposed lwi.d rd$,$ rs$1,$ rs$2($Load With Increment$)$ instruction to RISC$-$V$.$ Interpretation: Reg$[$rd$]=$Mem$[$Reg$[$rs$1]+$Reg$[$rs$2]]5.$a$1$ Which new functional blocks $($if any$)$ do we need for this instruction? $5.$a$2$ Which existing functional blocks $($if any$)$ require modification? $5.$a$3$ Which new data paths $($if any$)$ do we need for this instruction?