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

本书详细解释了面向对象的语言的底层机制，计算机编译器在编译时的作用和影响。-The book explains in detail the underlying mechanism of object-oriented languages​ ​ , the role and impact of computer compiler at compile time.