Connecting ports by name

Problem statement

This problem is similar to module. You are given a module named mod_a that has 2 outputs and 4 inputs, in some order. You must connect the 6 ports by name to your top-level module's ports:

Port in mod_a	Port in top_module
output out1	out1
output out2	out2
input in1	a
input in2	b
input in3	c
input in4	d

You are given the following module:

module mod_a ( output out1, output out2, input in1, input in2, input in3, input in4);

module top_module ( 
    input a, 
    input b, 
    input c,
    input d,
    output out1,
    output out2
);

endmodule

Solution

module top_module ( 
    input a, 
    input b, 
    input c,
    input d,
    output out1,
    output out2
);
    mod_a inst(
        .out1(out1),
        .out2(out2),
        .in1(a),
        .in2(b),
        .in3(c),
        .in4(d)
    );
endmodule