https://www.youtube.com/watch?v=4wPo_ilxggA&feature=youtu.be

2. (10 points) Textbook Problems 4.13 (p.184): 4.13 The adder-subtractor circuit of Fig. 4.13 has the following values for mode input M and data inputs A and B. M A (a) 0 0110 (b) 0 1000 1001 (c)00 1000 (d) 00 1010 (e) 0000 0001 In each case, determine the values of the four SUM outputs, the carry C, and overflow V (HDL-see Problems 4.37 and 4.40.) Use the Verilog program you developed above to verify your results. (You may refer to the video 4-bit Adder-Subtractor.)