https://github.com/llefranc/42_libasm

School project: get familiar with assembly language (with all the bonuses).
https://github.com/llefranc/42_libasm

42 42born2code 42paris 42school assembly assembly-language libasm stack

Last synced: 11 days ago
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School project: get familiar with assembly language (with all the bonuses).

• Host: GitHub
• URL: https://github.com/llefranc/42_libasm
• Owner: llefranc
• Created: 2020-05-08T07:48:01.000Z (about 6 years ago)
• Default Branch: master
• Last Pushed: 2020-11-25T15:07:27.000Z (over 5 years ago)
• Last Synced: 2025-03-06T10:54:29.534Z (over 1 year ago)
• Topics: 42, 42born2code, 42paris, 42school, assembly, assembly-language, libasm, stack
• Language: Assembly
• Homepage:
• Size: 1.28 MB
• Stars: 3
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
# libasm (@42Paris)

Assembly yourself!

![Alt text](https://github.com/lucaslefrancq/42_libasm/blob/master/libasm_example.png)

## 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][1]

`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)][2]

- [Assembly language][4]

- [Nasm tutorial][8]

- [Using stack : push and pop][3]

- [Flags register][5]

- [Introduction aux buffer overflows (FR)][6]

- [Introduction à la rétroingénierie des binaires (FR)][7]

[1]: https://github.com/lucaslefrancq/42_libasm/blob/master/libasm.en.subject.pdf

[2]: https://www.lacl.fr/tan/asm

[3]: https://stackoverflow.com/questions/13091987/x64-nasm-pushing-memory-addresses-onto-the-stack-call-function

[4]: https://software.intel.com/content/www/us/en/develop/articles/introduction-to-x64-assembly.html

[5]: https://www.youtube.com/watch?v=oQKa5q-jVzY&ab_channel=BeNew

[6]: https://zestedesavoir.com/articles/100/introduction-aux-buffer-overflows/

[7]: https://zestedesavoir.com/articles/97/introduction-a-la-retroingenierie-de-binaires/#fn-6-e1__RVmdu

[8]: https://cs.lmu.edu/~ray/notes/nasmtutorial/