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