Compiler Design
Syntax Analysis
Introduction Syntax Analysis is the second layer/phase of a compiler. The Syntax Analysis phase is also called Parsing. Definition Characteristics Syntax Analysis is performed by a Parser/Syntax Analyzer. It is the bridge between raw tokens(Lexical Analysis) and meaningful program structure(Semantic …
Compiler Design
Lexical Analysis
Introduction Lexical Analysis is the first layer/phase of a compiler. The Lexical Analysis phase is also called Scanning. A Pattern in this phase is a rule (often expressed with regular expressions) that defines how lexemes are recognized as tokens. A …
Compiler Design
Structure of Compiler
The structure of a compiler is organized into multiple phases, each responsible for transforming source code step by step into machine code. [A.] At a high level, compilers are divided into Front End Compiler Phase This phase is language-dependent. This …
Compiler Design
History and Basics
History Early Beginnings (1940s–1950s) The history of compilers started in the late 1940s with early ideas for automatic programming. In 1949–1951, Heinz Rutishauser proposed Superplan, a high-level language with an automatic translator, refined by Friedrich L. Bauer and Klaus Samelson. …
Computer Organization
Minimization of Logic Gates
Introduction When designing digital systems, especially for the first time, such as calculators, computers, and communication devices, we often start with complex Boolean expressions that involve several variables and gates. These expressions can be simplified using specific techniques later, allowing …
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