Text: C
14
F = XY
G = XiYi
W = XYiC
K = Ci(XiO Yi)
z = X;Y+C(X@ Yi) W Represents:..i-@.i-C...
The second method is to use one 8X1 Multiplexer with an appropriate set of 1 and 0 inputs to generate the Sum digit, and one 8X1 Multiplexer with an appropriate set of I and 0 inputs to generate the Cout. To decide what the ones and zeros need to be, you need to fill the table below. Note that X and Y are the same as x and y. Each row in the table represents a unique combination of x, y, and Cin. That, in turn, determines which data line is going through. For the left multiplexer, determine (from the Table) what value it should have to represent Sum. That determines the value to go in the red box on the left at that line. Do the same for the multiplexer on the right for Cout.
Hint: Fill the Table below. Then put in 0 or 1 for each input on the left to match what the Table dictates. Choose 0 or 1 correctly for each input line.
xycin Sum 000 001 010 011 100 101 110 111
X Y Cin
X Y Cin