# Morris Mano Edition 3 Exercise 5 Question 4 (Page No. 197)

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The adder-subtractor circuit of figure has the following values for mode input M and data inputs A and B. In each case, determine the values of the outputs: $S _ 4 S _3 S _2 S _1$ and $C _5$.

 M A B 0 0111 0110 0 1000 1001 1 0101 1000 1 0000 1010

## Related questions

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The adder-subtractor of the figure is used to subtract the following unsigned 4-bit number: 0110 – 1001(6 – 9) What are the binary values in the nine inputs of the circuit $?$ what are the binary values of the five outputs of the circuit$?$ Explain How the output is related to the operation of 6 – 9.
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