Question $8$

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Given the following MIPS assembly like code:

Li R$8,8$

L: $,$ LW R$2,$ R$3,$ R$7$

I Add R$1,$ R$2,$ R$3$

Sub R$7,$ RI$,$ R$3$

LW R$4,10($R$7)$

SW $R4,20($Rl$)$

Subi R$8,$ R$8,4$

BNEQZ R$8,$ L

Also, given the following latencies for each stage:

IF: $80$ ns$,$ ID: $30$ ns$,$ EX: $50n,$ MEM: $85n,$ and WB: $35$ ns

What is the total execution timewhen running this code on Single Cycle MIPS CPU with the above latencies?

A$.$ None of the answers

B$.6375$

C$.4000$

D$.4480$

E$.4200$