Question $1$:

$1SL=x^2.$

Recall that computing roots of a quadratic equation $a{x}^2+bx+c=0,$ requires the evaluation of the discrimimant $.$ Assume that the three variables $a,b$ and $c$ are given in three registers $R0,R1$ and $R2,$ respectively. Write an efficient assembly program $($using minimum number of instructions$)$ that will calculate the discriminant and store the result in register R$5.$