Question 3 [25 pts]: Translate function foo into MIPS assembly language. You must follow MIPS register usage conventions discussed in the textbook. Consider that the arguments of a function are mapped by the caller to $a0-$a3 in the order they appear in the function declaration. For example, bar always expects its parameters in $a0 and $a1. Also, assume that any function saves its arguments on the stack and then restores them before returning. Assume the function declaration of bar is "int bar (int x, int y);". The code for function foo is as follows: int foo (int a, int b, int c, int d){ return bar(a,c) - bar(b,d) You do not need to be concerned with the code for function bar, just its arguments and what it returns. You need to comment your program otherwise points will be taken