Translate the following C functions to MIPS.

a$)$ Bitwise logic operation

int func$1($int a$,$ int b$,$ int n$)$

$\{$

return $($a $<<8)$ & $($b $<<$ n$)$;

$\}$

b$)$ Use of $32-$bit constant

int$64\_$t func$2($int a$)$

$\{$

return a $+0$x$20003000$;

$\}$

c$)$ Multiply

int$64\_$t func$3($int$32\_$t a$,$ int$32\_$t b$)$

$\{$

return a$*$b;

$\}$