Assume that a virtual machine has only the following instructions STORE, LOAD, ADD, SUB, MUL, DIV, PUSH & POP. Write minimum number of instructions required for $1$ address and Zero$-$address program for the machine to implement the function $($Write $2$ separate programs$)$

$[6$ Marks$]$

$Y=\frac{AC-B}{DF+EG}$