module DispANS(
         input wire clkosc,
         input wire [2:0] LED3, LED2, LED1, LED0,
         output reg [27:0] Selectcolor,
         output reg [2:0] leg_LED
                         );

         localparam N = 18;
         reg [N-1:0] q_regs;
         wire [N-1:0] q_next;
         reg [2:0] LED_in;

         always@(posedge clkosc)
            q_regs <= q_next;

         assign q_next = q_regs + 1;

         always@*
            case(q_regs [N-1:N-2])
                0:
                begin
                    Selectcolor = 4'b0001;
                    LED_in = LED0;
                end
                1:
                begin
                    Selectcolor = 4'b0010;
                    LED_in = LED1;
                end
                2:
                begin
                    Selectcolor = 4'b0100;
                    LED_in = LED2;
                end
                3:
                begin
                    Selectcolor = 4'b1000;
                    LED_in = LED3;
                end
            endcase

        always@*
            begin
                case  (LED_in)
                    3'b001:  leg_LED  [2:0]  =  3'b001;
                    3'b010:  leg_LED  [2:0]  =  3'b010;
                    3'b100:  leg_LED  [2:0]  =  3'b100;
                    3'b011:  leg_LED  [2:0]  =  3'b011;
                    3'b101:  leg_LED  [2:0]  =  3'b101;
                    3'b110:  leg_LED  [2:0]  =  3'b110;
                    3'b000:  leg_LED  [2:0]  =  3'b000;
                    default:   leg_LED [2:0]  =  3'b111;
                endcase
            end

endmodule