The floating-point format to be used in this problem is an 8-bit ieee 754 normalized format with 1 sign bit, 4 exponent bits, and 3 mantissa bits. it is identical to the 32-bit and 64-bit formats in terms of the meaning of fields and special encodings. the exponent field employs an excess-7coding. the bit fields in a number are (sign, exponent, mantissa). assume that we use unbiased rounding to the nearest even specified