Can someone please do this problem and explain each step? Also please DO NOT solve using x86. Thank you in advance.

Problem 2 [120 Points) For the (pseudo) assembly code below, replace W, X, Y, and Z with the smallest set of MIPS instructions to save/restore values on the stack and update the stack pointer. Assume that functionA and functionB were written independently by two different programmers who are following the MIPS guidelines for caller-saved and callee-saved registers. In other words, the two programmers agree on the input arguments and return value of procB, but they can't see the code written by the other person and thus they do not know which registers does the other code touch. functionA: $S0 = Sonu local var. bble $sl-... $s2-... tSome local vor-ble Code Snippet W t Some local variable setting up the Int argument for Procedure call Con ar ouMen r ocedure call Jal procB jump to, procedure proc Code Snippet X $sl ...-Sa0 r Sra Some local variable sztting.uP, first argument for x for the prcedur. cal' end of procs functionB: Code Snippet Y for he proraure cal = Sal tl Setting up second of amen/ (.ry for the prof.dure call Ss2 _ Some local var.. able Code Snippet Z Jr $rathe end of-ran chonB funetion A) dlP