题解 | #含有无关项的序列检测#
含有无关项的序列检测
http://www.nowcoder.com/practice/cba67d06d6834a5d9b93e1087b56c8d8
`timescale 1ns/1ns module sequence_detect( input clk, input rst_n, input a, output reg match );
reg [8:0] a_reg;
always@(posedge clk or negedge rst_n)
if(~rst_n) a_reg <= 0;
else a_reg <= {a_reg[7:0],a};
always@(posedge clk or negedge rst_n)
if(~rst_n) match <= 0;
else if((a_reg[8:6]==3'b011)&&(a_reg[2:0]==3'b110))
match <= 1;
else match <=0;
endmodule
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