# azahar-emu/azahar

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6,561 stars · 415 forks · C++ · gpl-2.0

## Links

- GitHub: https://github.com/azahar-emu/azahar
- Homepage: https://azahar-emu.org/
- awesome-repositories: https://awesome-repositories.com/repository/azahar-emu-azahar.md

## Description

Azahar is an open-source, cross-platform emulator that translates Nintendo 3DS hardware calls into system-native operations, enabling computer users to run 3DS games and homebrew software without the original console hardware. Its core identity is defined by being a publicly available emulator that operates across multiple operating systems, providing access to the 3DS library on standard computing platforms.

The emulator achieves high-performance emulation through several key technical approaches. It employs a JIT-based CPU core with a dynamic recompilation engine that translates ARM11 and ARM9 instructions into host machine code at runtime. The GPU command FIFO scheduling system queues and processes 3DS GPU commands in order, mapping the console's PICA200 shaders to host graphics APIs, while a threaded GPU rasterization pipeline offloads graphics rendering to separate threads for parallelized vertex processing and fragment shading.

Additional capabilities include high-level emulation (HLE) of 3DS OS services to reduce overhead and improve compatibility, memory-mapped hardware abstraction that maps console registers and memory regions to host memory for direct access by emulated code, audio ring buffer streaming for real-time audio output synchronized with the emulated DSP timing, and save state serialization that captures and restores the entire emulator state as binary snapshots for instant save and load functionality.

## Tags

### Game Development

- [3DS Game Emulators](https://awesome-repositories.com/f/game-development/retro-game-emulation/3ds-game-emulators.md) — Translates Nintendo 3DS hardware calls into system-native operations to run console software on a computer. ([source](https://azahar-emu.org/))
- [Cross-Platform Console](https://awesome-repositories.com/f/game-development/game-engines-frameworks/game-engines/cross-platform/emulators/cross-platform-console.md) — Runs on multiple operating systems without requiring console hardware.
- [Emulation Save Management](https://awesome-repositories.com/f/game-development/emulation-save-management.md) — Captures and restores the entire emulator state as binary snapshots for instant save and load functionality.

### Development Tools & Productivity

- [Console Service Emulators](https://awesome-repositories.com/f/development-tools-productivity/development-environment-management/cloud-service-emulation-interception/cloud-infrastructure-emulation/cloud-service-emulators/mobile-service-emulators/console-service-emulators.md) — Replaces low-level 3DS OS services with high-level implementations to reduce overhead and improve compatibility.

### Graphics & Multimedia

- [Nintendo 3DS Emulators](https://awesome-repositories.com/f/graphics-multimedia/legacy-media-emulators/console-emulators/nintendo-3ds-emulators.md) — Runs Nintendo 3DS games and homebrew software on a computer by translating console hardware calls into system-native operations.

### Operating Systems & Systems Programming

- [JIT CPU Cores](https://awesome-repositories.com/f/operating-systems-systems-programming/computer-architecture/instruction-execution-models/instruction-level-emulators/cpu-core-implementations/jit-cpu-cores.md) — Uses just-in-time compilation to convert 3DS CPU instructions into native code blocks for faster execution.
- [Real-Time Audio Streaming Buffers](https://awesome-repositories.com/f/operating-systems-systems-programming/kernel-core-internals/process-and-memory-management/memory-management/buffer-and-cache-management/binary-buffer-managers/trace-buffer-managers/audio-buffers/real-time-audio-streaming-buffers.md) — Manages a circular buffer for real-time audio output synchronized with emulated DSP timing.

### Software Engineering & Architecture

- [Open Source Emulators](https://awesome-repositories.com/f/software-engineering-architecture/open-source-distributions/open-source-emulators.md) — Source code is publicly available for modification and distribution.
- [Dynamic Recompilation Engines](https://awesome-repositories.com/f/software-engineering-architecture/performance-reliability/performance-optimization/computational-efficiency/cpu-optimization-strategies/hardware-instruction-targeting/instruction-set-targets/instruction-set-architecture-learning/dynamic-recompilation-engines.md) — Translates ARM11 and ARM9 instructions into host machine code at runtime for high-performance emulation.

### Hardware & IoT

- [Memory-Mapped I/O Simulation](https://awesome-repositories.com/f/hardware-iot/vintage-hardware-simulation/memory-mapped-i-o-simulation.md) — Maps 3DS hardware registers and memory regions to host memory for direct access by emulated code.

### Programming Languages & Runtimes

- [Threaded Rasterization Pipelines](https://awesome-repositories.com/f/programming-languages-runtimes/language-features-paradigms/concurrency-models/concurrency/thread-local-contexts/graphics-context-threading/threaded-rasterization-pipelines.md) — Offloads graphics rendering to separate threads, parallelizing vertex processing and fragment shading.

### Web Development

- [GPU Command FIFO Schedulers](https://awesome-repositories.com/f/web-development/performance-optimizations/computational-parallelization/parallel-gpu-schedulers/gpu-command-batchers/gpu-command-fifo-schedulers.md) — Queues and processes 3DS GPU commands in order, mapping PICA200 shaders to host graphics APIs.