How many cycles are needed to execute this code segment if NO forwarding is used, and how many cycles if forwarding is used?addi $t$5,$$s$1,32$lw $t$2,0($$t$5)$lw $t$3,4($$t$5)$add $t$4,$$t$3,$$t$2$sw $t$2,8($$t$5)$sw $t$4,12($$t$5)$