$3\mathrm{.}10$ Assume that $x$ is an array of integers, and i and $j$ are integers. Convert the following $C$ statements into ARM assembly language.

$($a$)x[i]=j$;

$($b$)x[j]=x[i]$;

$($c$)x[i]=x[j**2]$;

$3\mathrm{.}11$ What is the difference between the $b$ instruction and the $bl$ instruction? What is each used for?

$3\mathrm{.}12$ What are the meanings of the following instructions?

$($a$)1$dreq

$($b$)1dr1t$

$($c$)$ bgt

$($d$)$ bne

$($e$)$ bge