利用VHDL编写的电子琴发生器

				Analysis & Synthesis Status : Successful - Sat Nov 08 19:18:51 2008
				Quartus II Version : 5.1 Build 176 10/26/2005 SJ Full Version
				Revision Name : Top
				Top-level Entity Name : TOP
				Family : ACEX1K
				Total logic elements : 119
				Total pins : 19
				Total memory bits : 0
				Total PLLs : 0