Our devs hack on FPGA cores for:

• GBA
• N64
• PSX
• WonderSwan
• NDS
• PC98
• and more!

We add features other core devs don't have yet, and some they'll copy from us

• GBA accuracy improvements
  • GBA2P link support for most titles
  • The Shrek Video mapper (yes it's real)
  • Various memory and timing issues
  • Audio/video fixes for accuracy and authentic console feel
• New hardware implementations
  • N64+DD dual support and RTC fixes
  • PSX upgrades
    • serial and multitap support/enhancements
    • CD-ROM seek accuracy with new funky model
  • General WonderSwan improvements (esoterics)
  • Nintendo DS (check it out!)
• Upcoming goals:
  • PC98 extensions to Zet98 for full Touhou support
    • blitter reimpls.
    • accurate cleanroom firmware reimpls.
    • support for modded content imperative!
  • full-speed NDS IS_NITRO debug unit reimpl.
    • GDB stub currently working
    • legacy tools may never see support

Fork the repos and get started! PRs welcome, and we're open to large reorganizations if well done