Addition in 5 bits 7 7 7 -13 +4 +9 - 9 - 6 Convert all numbers to binary, perform addition, interpret results using signed representation. Then, re-interpret the results using unsigned representation.

Write -8 to +7 numbers in binary using 2’s complement.

Floating-Point Representation. What is the floating-point value for binary 4. a) 11000010100000 using the simple model (14-bit format, 5 bits for the exponent with a bias 15, a normalized significand of 8 bits, and a single sign bit for the number)?

3. Perform the following operations involving four-bit 2's complement numbers and indicate whether arithmetic overflow occurs. Verify your answers by converting to decimal sign- magnitude representation. 0011 +0100 0101 +0110 0101 + 1010 1011 +0110 1101 + 1100 1011 + 1010

Different ways of representing integers in a binary format exists like the sign magnitude and the One’s complement. Why the sign magnitude is almost neither used in practice?

For the decimal numbers A = -17 and B = 21, calculate A-B using only 6 bits in 2’s complement by following the steps below. Clearly indicate your 6-bit result and analyze whether or not it is correct by inspecting overflow. (a) Find 2’s complement representations of A and (-B) using 6 bits (b) Do 2’s complement addition A + (-B), where both numbers are represented with 6 bits 2’s complements (c) After handling with carryout, check possible overflow to decide if 6 bits is enough.