x86-64 Playground is a web app for experimenting and learning x86-64 assembly.
The Playground web app provides an online code editor where you can write, compile, and share assembly code for a wide range of popular assemblers such as GNU As, Fasm and Nasm.
Unlike traditional onlide editors, this playground allows you to follow the execution of your program step by step, inspecting memory and registers of the running process from a GDB-like interface.
You can bring your own programs! Drag and drop into the app any x86-64-Linux static executable to run and debug it in the same sandboxed environment, without having to install anything.
: Flashing firmware from a different model variant can result in a hard brick (device won't turn on) or loss of cellular connectivity due to different frequency bands.
There are guides available to install Android 9.0 Pie (Pixel Experience) on the R11/R11s series. Requirements: oppo r11st global rom
: If you want to keep the original ColorOS but need Google Play, many Chinese versions have the Google Mobile Services (GMS) framework pre-installed. Users can often just download the Google Play Store APK directly or from the Chinese App Store. Comparison: R11 vs. R11s (R11st) : Flashing firmware from a different model variant
Last updated: April 2026 – The R11st Global ROM scene remains static; no new developments since 2021. Proceed with archived knowledge and caution. Users can often just download the Google Play
fastboot flash boot boot.img fastboot flash system system.img fastboot reboot
The Oppo R11s Global ROM is a customized version of the Oppo R11s smartphone that is designed for international users. Unlike the standard Chinese ROM, which is specifically tailored for the Chinese market, the Global ROM is optimized for use in other countries and regions. This version of the Oppo R11s comes with a range of features and improvements that cater to the needs of global users, including support for multiple languages, Google services, and more.
Have you ever seen a responsive debugger? The app places the mobile experience at the center of its design, and can be embedded in any web page to add interactivity to technical tutorials or documentations.
Follow the guide to embed in your website both the asm editor and debugger.
The app is open-source, and available on Github. It's powered by the Blink Emulator, which emulates an x86-64-Linux environment entirely client side in your browser. This means that all the code you write, or the excutables you debug are never sent to the server.
everything runs in your browser, and once the Web App loads it will work without an internet connection.
