Given the following C program and the mapping of registers to variables, complete the MIPS implementation of Main. Do not implement return $0$; in main$().$

int Dif$($int a$,$ int b$)\{$

return a $-$ b;

$\}$

int Sum$($int a$,$ int b$)\{$

return a $+$ b;

$\}$

int main$()\{$

int x$,$ y;

w $=$ Sum$($x$,$ y$)$;

z $=$ Dif$($y$,$ x$)$;

return $0$; $//$ Do not implement

$\}$

Registers Variables

$s$0$ x

$s$1$ y

$s$2$ w

$s$3$ z

Note: Use the $\text{'}+\text{'}$ button under the Registers display to initialize register values for $s$0$ and $s$1.$

Hint: Use the correct registers for arguments and return values according to register conventions.

Ex: If the values of $s$0$ and $s$1$ are initialized in the simulator as:

Registers Data

$s$05$

$s$110$

the results are stored in $s$2$ and $s$3$:

Registers Data

$s$05$

$s$110$

$s$215$

$s$35$