A combinational circuit that has two inputs A and B and two outputs, one being a sum without carry, S, and the other being a carry, C, and in which the outputs are related to the inputs according to the following table: \\ \\ input A0011 \\ \\ input B0101 \\ \\ output S sum without carry0 110 \\ output C carry0 001; 具有两个输入端(加数A，被加数B)和两个输出端(无进位和S，进位C)的一种组合电路。其输 入输出关系如下表: \\ \\ 输入A0011 \\ B0101 \\ 输出 \\ S0110C0001 | 同two-input adder。