Semantic analysis Parsing only verifies that the program consists of tokens arranged in a syntactically-valid combination, we now move on to semantic analysis, where we delve deeper to check whether they form a sensible set of instructions in the programming language

第5章 1.文法 S->al|^(T) T->T, SIS (1)对(a,(a,a)的最左推导为: =>(T,S) =>(S,S)

Handout written by maggie Johnson and revised by me Three address code Three-address code(tac) will be the intermediate representation used in our Decaf compiler. It is

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源语言 词法分析 语法分析 前端

正规表达式和有穷自动机 1指与出正规式匹配的串 a)(abb)*c与后面的那些串匹配? ababbc abab c babc aaabc

5.4.1DMA方式基本概念 定义、过程(三个阶段)、应用,见3.5.2 5.4.2DMA控制器与接口的连接

4.3.1存储原理与技术指标 1读写原理存储介质:磁层读/写部件:磁头 (1)写入在磁头线圈中加入磁化电流(写电流),并使磁层移动,在磁层上形成连续的小段磁化区域(位单元)。演示

5.1.1接口分类 5.1.2接口主要功能

第一节定点表示与浮点表示 第二节指令信息的表示