$(80$ Points$]$ Please implement the following callee and caller using RISC$-$V assembly language:

Callee $($C code$)$:

int foo $($int s$)\{$

int sum $=0$;

Caller $($C code$)$:

int f $=0$;

f $=$ foo $(16)$;

for $($int $1=99$; $1=0$; i $=1-1)($

A$[$i$]=$ A$[$i$]+$ s;

sum $+=$ A$[1]$;

Total Points: $100$ Duration: $1$ hour

return sum;

We assume $(1)$ Array A was globally defined and initialized earlier in the program, which is accessible by both the callee and the caller, and we do not need to work on Array A$\text{'}$s definition and initialization for this question; $(2)$ The base memory addresses of Array A is in registers x$25$; and $(3)$ You may choose to use any other registers in your implementation if needed, but their usage must be compliant with the register categories described on the RISC$-$V reference data sheet.

$($a$)[40$ Points$]$ Implementation of the callee code in RISC$-$V$.$

$($b$)[20$ Points$]$ Implementation of the caller code in RISC$-$V$.$