verilog语言写的一个四层电梯程序

				Fitter Status : Successful - Sun Sep 09 18:52:05 2007
				Quartus II Version : 6.0 Build 178 04/27/2006 SJ Full Version
				Revision Name : top
				Top-level Entity Name : top
				Family : Cyclone
				Device : EP1C6Q240C8
				Timing Models : Final
				Total logic elements : 182 / 5,980 ( 3 % )
				Total pins : 31 / 185 ( 17 % )
				Total virtual pins : 0
				Total memory bits : 0 / 92,160 ( 0 % )
				Total PLLs : 0 / 2 ( 0 % )