Problem $2(20$ points$)$: a$)$ Write the MIPS machine codes for the following assembly codes.

addi $ s$1,$ $t$1,-6$

sit $ to$,$ $$sO,$$$s2$

The integer value of $t0,t1,s0,s1$ and $s2$ are $8,9,16,17$ and $18$ respectively. Op code and function value for slt is $0$ and $42(101010)$ respectively. Op code for addi is $8.$