llefranc / 42_libasm

School project: get familiar with assembly language (with all the bonuses).

libasm (@42Paris)

Assembly yourself!

About

Libasm is a project of the mandatory part of the cursus. It's only made in assembly and the main goal was to understand how registers, stack, systems calls and memory work.

• For this we had to code in assembly 10 different functions :

  • Mandatory part was : strlen, strcpy, strcmp, write and read (using syscall)
  • Bonus part was : atoi_base, and 4 functions for chainlists

• Here is the subject

This project was code for MACOS

Building and running the project

1. Download/Clone this repo

    git clone https://github.com/lucaslefrancq/42_libasm.git
   

2. cd into the root directory, and run make

    cd 42_libasm
    make
   

3. compile your main.c or the main.c in this repo with libasm.a

Sources

• Langage assembleur (FR)
• Assembly language
• Nasm tutorial
• Using stack : push and pop
• Flags register
• Introduction aux buffer overflows (FR)
• Introduction à la rétroingénierie des binaires (FR)