For code that works with simple numeric or character data in tight loops, Pyrex can produce significant speedups, maybe 50 times the speed in best cases.
Numeric core code and data structure initializing core code are generated for the the simulator in a high level programming language from the language of the symbolic language translator.
根据符号语言翻译器的语言，按照高级程序语言产生模拟程序的数字核心代码和初始化核心代码的数据结构。
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American Standard code for Information Interchange (ASCII) is the code that is most commonly used to represent alpha-numericdata in a computer.