Verilog HDL Program for EXCLUSIVE NOR Logic Gate

The XNOR gate is a digital logic gate whose function is the inverse of the exclusive OR (XOR) gate. A HIGH output (1) results if both of the inputs to the gate are the same. If one but not both inputs are HIGH (1), a LOW output (0) results.

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module xnor1(c,a,b);
    output c;
    input a,b;
    wire d,e,f,g;
    inv u1(d,a);
    inv u2(e,b);
    and1 u3(f,a,b);
    and1 u4(g,e,d);
    or1 u5(c,f,g);
endmodule