$2.$a$)$ Implement the following C code in MIPS assembly.

i n t f i b $($ i n t n $)$

$\{$

i f $($ n$==0)$

r e t u r n $0$ ;

$1$

e l s e i f $($ n$==1)$

r e t u r n $1$ ;

e l s e

r e t u r n f i b $($ n$1)+$ f i b $($ n $2)$;

$\}$

$2.$b$)$ Implement a main function that calls the fib procedure implemented in $2.$a$),$ which

initializes the variable n to $3.$