搜索资源列表
PL0_flex_analyse
- 对pl0语言的词法分析程序,带分析工具flex。输入一个PL0源程序文件名,即可看到词法统计结果。- To the pl0 language lexical analyaer, brings analysis tool flex. Inputs a PL0 source program filename, namely as worthy of looking at as morphology statistics result.
LL1文法分析ForWin
- 录入合法的LL(1)文法,将输出LL(1)预测分析表- Inputs legitimate LL (1) the grammar, will output LL (1) to forecast the analytical table
huffman2.rar
- 根据哈夫曼算法进行建树,并根据输入的数据,进行哈夫曼编码。, Carries on the achievements according to 鍝堝か鏇?the algorithm, and according to the data which inputs, carries on 鍝堝か鏇?the code.
74HC148_DataSheet
- 8到3译码器 74HC138是一款高速CMOS器件,74HC138引脚兼容低功耗肖特基TTL(LSTTL)系列。 74HC138译码器可接受3位二进制加权地址输入(A0, A1和A2),-8-3 decoder 74HC138 is a high-speed CMOS, 74HC138 pin compatible with low power Schottky TTL (LSTTL) series. 74HC138 decoder accepts three binary weighted a
20110915_src
- 建立一个针对LL(1)文法编译器的自动生成器。要完成此编译器的生成器需对源文件进行两遍处理:第一遍词法分析,第二遍语法分析。语法分析程序用LL(1)语法分析方法。首先输入定义好的文法书写文件(所用的文法可以用LL(1)分析),然后建立词法分析器,包括词法分析主程序、扫描器部分、关键字表等。经词法分析后分别计算所输入的文法的每个非终结符号的FIRST集合,每个非终结符号的FOLLOW集合,以及每个规则的SELECT集合,并判断任意一个非终结符号的任意两个规则的SELECT集的交集是不是都为空,如果
and_gate
- This an AND gate 2 inputs and the output is the AND of the inputs.-This is an AND gate 2 inputs and the output is the AND of the inputs.