提供了很多常用的硬件描述语言的算法，如移位器，计算器，与或非门的基本写法-Provides many commonly used algorithms hardware descr iption language, such as shifters, calculators, and basic wording of NOR gates, etc.

计算器功能，可加减乘除，可移位,65525以内运算-, calculator functions, addition, subtraction, multiplication, and division can shift, operation within 65525