7.a) Design a logic diagram, using logic gates, for addition/subtraction circuit, using a control variable P such that this operates as full adder when P = 0, and full subtractor for P = 1.
7.a) Design a logic diagram, using logic gates, for addition/subtraction circuit, using a control variable P such that this operates as full adder when P = 0, and full subtractor for P = 1.
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