Question $4(25$ points$)$Consider a computer that has a number of registers such that the three registers RO $=150,$ R$1=450,$ and R$2=100.$ Show the effective address of memory and the registers' contents in each of the following instructions $($assume that all numbers are decimal$).($a$)$ ADD $+$Ro R$2(6)$ SUBTRACT $($R$,)$ R$2($e$)$ MOVE $300($Ro$\text{'}$ R$2$@LOAD #$1000,$ R$2($e$)$ STORE R$,200($R$2\text{'}$