C-Compiler

Implementation of the front end of a compiler for a subset of C language.

Components

• Symbol Table

  • Written in C++.
  • Produces a hash table for mapping variables used in the source program to tokens.

• Lexical Analyzer / Scanner

  • Written in flex.
  • Generates tokens from lexemes and reports lexical errors.

• Syntax and Semantic Analyzer / Parser

  • Written in yacc / bison.
  • Parses the tokens generated by the scanner according to specified grammar rules.
  • Reports syntax and semantic errors.
  • Takes actions for error recovery for some syntax errors.

• Intermediate Code Genarator

  • Produces intel 8086 assembly language code from source C code.
  • Optimizes the assembly code.