How do i convert the following C program into MIPS assembly?

In this second program you should pass arguments using the stack. Push the operands to the stack and then pop them back in registers the callee function as required.

void swap (int a, int b)

{ int temp=a;

a=b;

b=temp;

}

int distance (int a, int b)

{

if (b > a) swap (a,b);

return (a-b)

}

void main(void)

{

int var1 =50;

int var2= 200;

result = distance (var1, var2);

return;

}