题解 | #四选一多路器#
四选一多路器
https://www.nowcoder.com/practice/cba4617e1ef64e9ea52cbb400a0725a3
`timescale 1ns/1ns module mux4_1( input [1:0]d1,d2,d3,d0, input [1:0]sel, output[1:0]mux_out ); //*************code***********// reg [1:0] mux_out1; always@(*) begin case(sel) 2'b 00:begin mux_out1<=d3; end 2'b 01:begin mux_out1<=d2; end 2'b 10:begin mux_out1<=d1; end 2'b 11:begin mux_out1<=d0; end endcase end assign mux_out=mux_out1; //*************code***********// endmodule