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
);
reg [1:0]mux_out;
always@(*) begin
case(sel)
2'b00: mux_out=d3;
2'b01: mux_out=d2;
2'b10: mux_out=d1;
default: mux_out=d0;
endcase
end
endmodule
