always @ (vclk) begin
	if nrst = ‚äò0‚äô begin
		vcount <= 0;
	else
		if vcount>15700 and vcount <15764 begin
			vsync <= ‚äò0‚äô;
		else
			vsync <= ‚äò1‚äô;
		end if
		if vcount > 16784 begin
			vcount <= 0;
		else
			vcount <= vcount + 1;
		end if
	end if
end