Core Requests

This page documents various emulator core candidates and specific user requests for systems.

TODO merge in Yoshi's list on GitLab

(3DO) 4DO

• https://sourceforge.net/p/fourdo/code/HEAD/tree/trunk http://fourdo.com
• C# (net40); GPLv2

(3DS) Citra

• https://github.com/citra-emu/citra https://citra-emu.org
• C++; GPLv2+
• Issues:
  • #3180
• Notes:
  • Citra has its own rerecording tools and Citra movies are acceptable on TASVideos.

(Amiga) FS-UAE or WinUAE

• https://github.com/FrodeSolheim/fs-uae https://fs-uae.net (fork of http://winuae.net)
• C/C++; GPLv2
• Issues:
  • #2003

(Atari 5200) Altirra or Atari800

Tracking as #3317.

(Atari Jaguar) Virtual Jaguar or Phoenix

Tracking as #1907.

(BBC Micro) beebjit or BeebEm or B-Em

Tracking as #2031.

(Cave Story engine) NXEngine

• https://nxengine.sourceforge.io (source distributed as archives)
• C++; GPLv3

(Coleco Adam) MAME subset

• can likely copy most Hawk-side code from MAME Arcade core

(Dreamcast) Flycast or Reicast

Tracking as #856.

(Flash) Ruffle

Tracking as #2032.

(IBM PC) 86Box or DOSBox

86Box

• https://github.com/86Box/86Box (fork of https://www.pcem-emulator.co.uk/)
• C/C++; GPLv2+
• Issues:
  • #1673
• Notes
  • Standalone program seeing use for TASing already, see these two threads on TASVideos, and this thread for 86Box specifically.

DOSBox

• https://github.com/schellingb/dosbox-pure (fork of https://dosbox.com/)
• C/C++; GPLv2+
• Issues:
  • #2547
• Core Analysis
  • Early attempts (2010 or so) to add rerecording suggesting it is highly sync unstable. Situation may have changed since then. Waterbox highly recommended.
  • In particular, according to Ilari it had a lot of reentrancy with HLE operations, so you could get to a "frame end" while servicing an x86 BIOS call in HLE code, requiring the ability to save and load with different call sequences on the stack.

(Pokémon mini) GB Enhanced+ or PokeMini

Tracking as #3162.

(PS2) PCSX2

Tracking as #3318.

(PSP) PPSSPP

• https://github.com/hrydgard/ppsspp https://ppsspp.org
• C/C++; GPLv2+
• Notes:
  • PPSSPP has been proof-of-concept added to Bizhawk before, but it was deemed too complicated and too early in development. However, that was quite a while ago.
  • Has a software rendering option which is fast enough; should probably go with that even if not Waterboxing.
  • There has been some success with running PPSSPP standalone in libTAS, see this forum thread.
• Other emulators:
  • cspspemu in C#, unfortunately targets .NET Core

(Symbian OS) EKA2L1

Tracking as #3364.

(X68000) Virtual X86000

• https://bitbucket.org/kazssym/libvm68k/src https://www.vx68k.org/vx68k
• C++; GPLv3+
• Other emulators:
  • PX68K (in Japanese) in C/C++; no license, though the author granted RetroArch distribution rights