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
