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A Nintendo DS emulator developed for fun, with performance and multicore CPUs in mind. A nearly from scratch rewrite of my previous emulator aiming to try new techniques and achieve higher code quality.

This is highly experimental software. I am developing this emulator for fun and learning only. I do not intend to replace any of the established DS emulators.
If you are looking for a mature emulator, melonDS is the way to go.

Current Status

  • Full emulation of most core hardware. Most notably missing though are:
    • Any resemblance of accurate timing emulation
    • WiFi, sound capture and microphone emulation
  • A somewhat accurate software 3D renderer (not as accurate as melonDS though) with:
    • Somewhat accurate edge and vertex attribute interpolation
    • Support for fog, edge-marking and anti-aliasing (based on half-assed coverage calculations...)
  • In terms of emulator optimizations there is:
    • An ARM to x86_64 dynamic recompiler for fast CPU emulation (using my own lunatic library).
    • Rendering of the 2D graphics engines on separate threads

Media

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Credit

  • Martin Korth: for GBATEK
  • Arisotura: for hardware documentation, especially regarding the 3D engine
  • Hydr8gon: for some hints and sharing 3D engine insights
  • StrikerX3: for documenting the precise formula for polygon edge interpolation
  • Jaklyy: for 3D engine research and sharing her insights

Copyright

irisdual is Copyright © 2024 fleroviux. All rights reserved.
irisdual is released under a free for non-commercial use license. Refer to the LICENSE file for details.

Nintendo DS is a registered trademark of Nintendo Co., Ltd.