addi $sp$,$ $zero, $8188$ # Assume program stack starts at $8188.$ Do not modify.

# Procedure Main

Main:

addi $t$0,$ $zero, $5$

addi $t$1,$ $zero, $10$

# Call Sum

move $a$0,$ $t$0$ # Move argument $t$0$ to $a$0$

move $a$1,$ $t$1$ # Move argument $t$1$ to $a$1$

jal Sum # Call Sum procedure

lw $t$2,0($$sp$)$ # Load the result of Sum from the stack into $t$2$

# Call Dif

move $a$0,$ $t$0$ # Move argument $t$0$ to $a$0$

move $a$1,$ $t$1$ # Move argument $t$1$ to $a$1$

jal Dif # Call Dif procedure

lw $t$3,0($$sp$)$ # Load the result of Dif from the stack into $t$3$

j End # Jump to End label

#Procedure Sum $($Do not modify$)$

Sum:

lw $t$0,8($$sp$)$

lw $t$1,4($$sp$)$

add $t$2,$ $t$0,$ $t$1$

sw $t$2,0($$sp$)$

jr $ra

# Procedure Dif $($Do not modify$)$

Dif:

lw $t$0,8($$sp$)$

lw $t$1,4($$sp$)$

sub $t$2,$ $t$0,$ $t$1$

sw $t$2,0($$sp$)$

jr $ra

End:

I NEED HELP WITH JUST THE MAIN FUNCTION AND GETTING THE CORRECT OUTPU$\frac{T}{V}$ALUE FOR EACH REGISTER. $3\mathrm{.}11$ Clone of LAB: Function calls

Given the following $C$ program and the mapping of registers to variables, complete the MIPSzy 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 $x,y$;

$w\frac{?}{S}=um(x,y)$;

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

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

$\}$

Hints: Use program stack to pass arguments, return values, and preserve saved registers. Remember to pop the stack after each function

returns.

Ex: If the values of $ to and $ t $1$ are initialized in the simulator as:

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

Note: Use the $\text{'}+\text{'}$ button under the Registers display to initialize register values for $t$0$ and $t$1.$

Register $$t0=5,$ $$t1=10,$ $$t2=15,$ $$t3=5$ after initializing them