`timescale 1ns/1ps
module sn7423
  #(parameter tPLH = 0, tPHL = 0)
  (input [1:0]	A,
   input [1:0]	B,
   input [1:0]	C,
   input [1:0]	D,
   input [1:0]	G,
   input	X,
   output [1:0]	Y);

   wire [1:0] Xt;
   assign Xt = {0, X};
   assign #(tPLH, tPHL) Y = ~((G & (A | B | C | D)) | Xt);
endmodule