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_out_my;
always@(*)
begin
case(sel)
2'd0: mux_out_my = d3;
2'd1: mux_out_my = d2;
2'd2: mux_out_my = d1;
2'd3: mux_out_my = d0;
default: mux_out_my = 2'd0;
endcase
end
assign mux_out = mux_out_my;
//*************code***********//
endmodule
