HDLBits - Gates4

Build a combinational circuit with four inputs, in[3:0]

There are 3 outputs:

out_and: output of a 4-input AND gate.
out_or: output of a 4-input OR gate.
out_xor: output of a 4-input XOR gate.

3개의 Output을 위에서 말하는 Gate들로 만드는 문제
Bit들을 하나씩 떨어뜨리고 연산하면 끝

module top_module( 
    input [3:0] in,
    output out_and,
    output out_or,
    output out_xor
);
    assign out_and = in[0] & in[1] & in[2] & in[3];
    assign out_or  = in[0] | in[1] | in[2] | in[3];
    assign out_xor = in[0] ^ in[1] ^ in[2] ^ in[3];

endmodule