Determine the content of the memory unit in a distributed arithmetic implementation of the direct-form realization of a digital filter whose coefficients are given by

\[\begin{aligned}

& b_{0}=b_{2}=0.07864 \\

& b_{1}=-0.14858 \\

& a_{1}=-1.93683 \\

& a_{2}=0.95189 .

\end{aligned}\]

Use 8 bits to represent all internal signals.