How many adder circuits are required to implement BCD subtractor?
a.
4
b.
3
c.
5
d.
2
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1
Answer:
To design the entire circuit existing BCD subtractor requires 106 gates, garbage outputs as 154 and 87 constant inputs. Therefore hardware required to construct BCD subtractor is very high and it produces a very high number of garbage's. adder/subtractor two new reversible gates are proposed.
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