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,s1,s2,
input [1:0]sel,
output[1:0]mux_out
);
reg [1:0] mux_out1;
always @(*)begin
case(sel)
2'b00:mux_out1 = d3;
2'b01:mux_out1 = d2;
2'b10:mux_out1 = d1;
2'b11:mux_out1 = d0;
endcase
end
assign mux_out=mux_out1;
endmodule
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