README.md

Cycle 2 — p9: Intermediate Code Generator

Files:

• code.l - Lexical analyzer for C-like language
• code.y - Parser and intermediate code generator
• test.c - Test input/driver program

Brief description:

A Lex/Yacc implementation that generates intermediate code (quadruples) for a C-like language:

1. Lexical Analysis (code.l):

   • Recognizes:
     • Keywords (main, if, else, while)
     • Types (int, char, float)
     • Identifiers and numbers
     • Relational operators
     • Line numbers for error reporting

2. Parser (code.y):

   • Handles:
     • Variable declarations
     • Assignments
     • Arithmetic expressions
     • If-else statements
     • While loops
   • Generates quadruples (4-address code)
   • Manages temporary variables
   • Implements control flow

Build:

flex code.l
bison -y -d code.y
gcc lex.yy.c y.tab.c -o compiler

The output is a table of quadruples showing the intermediate representation of the program.