8. Answer the following questions: (5M If two 4-bit numbers are multiplied, the product would be Assume that only the number of addition operations in the non-restoring division algorithm is known. Is it possible to figure out the number of additions in the restoring division algorithm? Justify. (2) Is the following a valid alternative definition of overflow in 2's complement arithmetic? "If the XOR of carry bits into and out of the leftmost column is 1, then there is an overflow condition. Otherwise not". Validate your answer for every case with appropriate set of examples. (2) a. -bits. (1) b. c