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_tmp;
always@(*) begin
case(sel)
2'b00: mux_out_tmp = d3;
2'b01: mux_out_tmp = d2;
2'b10: mux_out_tmp = d1;
2'b11: mux_out_tmp = d0;
endcase
end
assign mux_out = mux_out_tmp;
//*************code***********//
endmodule