You are writing a MIPS function named 'foo' which uses registers $$s0$ and $$s1$ for temporary

storage. It may also call other functions. Upon completion, the function branches to

done$\_$foo, where it returns to the calling function. Show the first $4$ instructions in the

function preamble, which saves registers on the stack. Type your response in the edit box

below. It should agree with what is shown.foo: ## Statements in the function foo $($not shown$)$

done$\_$foo:lw $ra$,0($$sp$)$jr $ra # return to calling function