Nothing listed here is a guarantee or promise of action. I have many more interests than I have hours in a day. This lists only things directly related to MAME. Also, order listed here may not reflect actual implementation order.


  • In progress: Namco System 23 work (with O. Galibert)
  • Merge submitted H8S core with our existing H8 core
  • Help Andrew with Polygonet Commanders where possible (I AM NOT A DSP56K COWBOY)
  • Continue to work with the SpriteMind guys on YM2612 improvements
  • SH-4 DRC for Naomi/Atomiswave (and Dreamcast in MESS)


  • SCSP/AICA DSP recompiler
  • AICA needs better envelope handling. Shenmue DSF rips need the filters.
  • 65816 family reunion
    • Merge 65816/M37710 so identical opcodes use the same code
    • Add Nintendo varient that runs in terms of SNES master cycles for better accuracy
  • Rewrite Konami video chain and trojan unclear details
  • Further reverse-engineering on (Super) System 23
  • Investigate 680x0 instruction restart


  • Rework OpenGL backend:
    • Need to use a pixel shader to do YUV to RGB conversion or else laserdisc games will suck mightily on modern video cards (which no longer have dedicated conversion hardware)
    • Render to texture first so user shader can still be used for final blit? (And how bad will this break fglrx and Apple drivers?)