this a pack include source code for quartus 2. It is an implementation of the LC2. The LC-2 computer is described in Introduction to Computing Systems from Bits & Gates to C & Beyond by Yale Patt and Sanjay Patel, McGraw Hill, 2001. The LC2 mode

VHDL ALTERA CYCLONE 超声波模块控制代码-VHDL ALTERA CYCLONE