module original #(parameter WIDTH=256, SELW=2)
   (input 	        clk ,
    input [9:0] 	   ctrl ,
    input [15:0] 	   din ,
    input [SELW-1:0] 	   sel ,
    output reg [WIDTH-1:0] dout);
   
   localparam SLICE = WIDTH/(SELW**2);
   always @(posedge clk)
     begin
	dout[ctrl*sel+:SLICE] <= din ;
     end
endmodule