module decoder3to8(input[2:0]s , output reg [7:0]y);
always@(*)begin
case(s)
3'b000: y = 8'b00000001;
3'b001: y = 8'b00000010;
3'b010: y = 8'b00000100;
3'b011: y = 8'b00001000;
3'b100: y = 8'b00010000;
3'b101: y = 8'b00100000;
3'b110: y = 8'b01000000;
3'b111: y = 8'b10000000;
default: y = 8'b0;
endcase
end
endmodule