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Tim Ledbetter 8892c25520 Base: Return the correct value for fib(0) in Wasm example 
Previously, using `wasm-decompile` to decompile the Wasm bytecode on
the `wasm.html` example page gave this output:

```
export function fib(a:int):int {
  if (a < 2) { return 1 }
  return fib(a - 2) + fib(a - 1);
}
```

With this change the bytecode now decompiles to:

```
export function fib(a:int):int {
  if (a <= 0) { return 0 }
  if (a == 1) { return 1 }
  return fib(a - 2) + fib(a - 1);
}
```

This means that the example page now prints the correct answer of 55 to
the console for `fib(10)`. Previously, `fib(10)` returned 89.

I also used `wasm-opt -Oz`, which removed an unnecessary `return`
instruction, saving 1 byte!
2024-04-11 01:17:20 +02:00
.devcontainer
.github
AK Ladybird+LibWebView: Add mechanism to get Mach task port for helpers 2024-04-09 16:43:27 -06:00
Base Base: Return the correct value for fib(0) in Wasm example 2024-04-11 01:17:20 +02:00
Documentation
Kernel
Ladybird Ladybird: Use MachPortServer to get WebContent Mach ports on macOS 2024-04-09 16:43:27 -06:00
Meta Meta: Port recent changes to the GN build 2024-04-10 07:46:42 +02:00
Ports Ports: Update ScummVM to 2.8.1 2024-04-10 21:12:25 +02:00
Tests LibWeb: Implement Element.outerHTML 2024-04-09 18:17:14 -04:00
Toolchain
Userland LibGL+LibGPU+LibSoftGPU: Implement constant blending color 2024-04-10 21:12:25 +02:00
.clang-format
.clang-tidy
.editorconfig
.gitattributes
.gitignore
.gn
.mailmap
.pre-commit-config.yaml
.prettierignore
.prettierrc
.ycm_extra_conf.py
azure-pipelines.yml
CMakeLists.txt
CONTRIBUTING.md
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flake.nix
LICENSE
README.md
SECURITY.md

README.md

SerenityOS

Graphical Unix-like operating system for x86-64 computers.

GitHub Actions Status Azure DevOps Status Fuzzing Status Sonar Cube Static Analysis Discord

FAQ | Documentation | Build Instructions

About

SerenityOS is a love letter to '90s user interfaces with a custom Unix-like core. It flatters with sincerity by stealing beautiful ideas from various other systems.

Roughly speaking, the goal is a marriage between the aesthetic of late-1990s productivity software and the power-user accessibility of late-2000s *nix. This is a system by us, for us, based on the things we like.

You can watch videos of the system being developed on YouTube:

Screenshot

Screenshot as of c03b788.png

Features

  • Modern x86 64-bit kernel with pre-emptive multi-threading
  • Browser with JavaScript, WebAssembly, and more (check the spec compliance for JS, CSS, and Wasm)
  • Security features (hardware protections, limited userland capabilities, W^X memory, pledge & unveil, (K)ASLR, OOM-resistance, web-content isolation, state-of-the-art TLS algorithms, ...)
  • System services (WindowServer, LoginServer, AudioServer, WebServer, RequestServer, CrashServer, ...) and modern IPC
  • Good POSIX compatibility (LibC, Shell, syscalls, signals, pseudoterminals, filesystem notifications, standard Unix utilities, ...)
  • POSIX-like virtual file systems (/proc, /dev, /sys, /tmp, ...) and ext2 file system
  • Network stack and applications with support for IPv4, TCP, UDP; DNS, HTTP, Gemini, IMAP, NTP
  • Profiling, debugging and other development tools (Kernel-supported profiling, CrashReporter, interactive GUI playground, HexEditor, HackStudio IDE for C++ and more)
  • Libraries for everything from cryptography to OpenGL, audio, JavaScript, GUI, playing chess, ...
  • Support for many common and uncommon file formats (PNG, JPEG, GIF, MP3, WAV, FLAC, ZIP, TAR, PDF, QOI, Gemini, ...)
  • Unified style and design philosophy, flexible theming system, custom (bitmap and vector) fonts
  • Games (Solitaire, Minesweeper, 2048, chess, Conway's Game of Life, ...) and demos (CatDog, Starfield, Eyes, mandelbrot set, WidgetGallery, ...)
  • Every-day GUI programs and utilities (Spreadsheet with JavaScript, TextEditor, Terminal, PixelPaint, various multimedia viewers and players, Mail, Assistant, Calculator, ...)

... and all of the above are right in this repository, no extra dependencies, built from-scratch by us :^)

Additionally, there are over three hundred ports of popular open-source software, including games, compilers, Unix tools, multimedia apps and more.

How do I read the documentation?

Man pages are available online at man.serenityos.org. These pages are generated from the Markdown source files in Base/usr/share/man and updated automatically.

When running SerenityOS you can use man for the terminal interface, or help for the GUI.

Code-related documentation can be found in the documentation folder.

How do I build and run this?

See the SerenityOS build instructions. Serenity runs on Linux, macOS (aarch64 might be a challenge), Windows (with WSL2) and many other *Nixes with hardware or software virtualization.

Get in touch and participate!

Join our Discord server: SerenityOS Discord

Before opening an issue, please see the issue policy.

A general guide for contributing can be found in CONTRIBUTING.md.

Authors

And many more! See here for a full contributor list. The people listed above have landed more than 100 commits in the project. :^)

License

SerenityOS is licensed under a 2-clause BSD license.