$A.$Draw a block, diagram for a parallel divider that is capable of dividing a positive $8-$bit binary number by a positive $4-$bit binary number to give a $4-$bit binary quotient. Use a $9-$bit dividend register, a $4-$bit divisor register, a subtracter$-$comparator block, and a control block

$B.$ Show the contents of the dividend register and the value of C at each clock time when $49$ is divide by $6.($C is the comparator output and should have a value of C $=1$ if subtraction can take place without a negative result$).$

$C.$ Under what conditions will overflow take place?