消除毛刺的兩級緩衝器設計

module glitch(clk,data,q_out);
input clk,data;
output reg q_out;
reg q1;

always@(posedge clk)
begin
  q1 <= data;
end

always@(posedge clk)
begin
   q_out <= q1;
end

endmodule