Compiler

This repository contains a compiler implemented in C for a specific programming language. The compiler follows the language specifications provided in "Language Specifications.pdf".

Project Overview

The compiler is responsible for parsing input files according to the language specifications. If the input is both syntactically and semantically correct, the compiler can generate corresponding assembly-level code. Test cases have been provided in the "testcases" directory for evaluating the compiler's functionality.

Compatibility

The code is compatible with GCC version 5.4.0 and has been tested on Ubuntu 16.04. To run it on Windows, you will need to use Cygwin.

How to Use

To create the compiler:

1.Navigate to the "Compiler" directory. 2.Run the command: make. 3.This will create an executable file named "compiler".

To test the compiler on a test case:

1.Ensure that you are in the directory containing the "compiler" executable. 2.Run the command: ./compiler <RELATIVE_PATH_TO_TESTCASE_FILE> <NAME_OF_ASM_FILE>. 3.Choose one of the available options (0-10) to test the desired feature. 4.To generate assembly-level code, select option 10. 5.Choose option 0 to exit (Ctrl + C will result in no output in the ASM file). 6.To run the generated ASM file, use the following commands: nasm -felf64 code.asm && gcc code.o && ./a.out (Replace "code.asm" with the actual name of the ASM file).

To create the compiler

1. cd Compiler
2. make
3. This will create an executable file named compiler

To test the compiler on a testcase

1. Ensure you are in the directory containing the compiler executable
2. Run ./compiler <RELATIVE_PATH_TO_TESTCASE_FILE> <NAME_OF_ASM_FILE>
3. Choose among the 11 options to test the feature you want.
4. To create assembly-level code , choose option 10.
5. Choose option 0 to exit. (Ctrl + C would result with no output in the ASM file)
6. To run the asm file nasm -felf64 code.asm && gcc code.o && ./a.out (Using code.asm as the name of the asm file in this example)

Stages of Compiling a Test Case (Option 10)

Stage	Details
Lexical Analysis	Categorizes the contents of the input file into tokens based on the language specifications.
Syntax Analysis	Creates a Parse Tree based on the tokens returned by the lexer. If any errors occur, compilation stops.
Semantic Analysis	Creates an Abstract Syntax Tree (AST) from the corresponding Parse Tree and populates the Symbol Table.
Code generation	Generates assembly-level code. Code generation is limited to test cases that have a single main function and handle only integers.

Contributors

The team members of this project were:

• Karan Bagle
• Girish Bisane
• Siddharth Mohite