slingshot wrote:I didn't fix anything in CPU or VDP, so don't expect a Gensis level compatibility, just ported the Huc6260 from MiSTer, since it gave a good centering for me.
Game compatibility should be the same as before (e.g. Afterburner doesn't work), but it's now stable for me at least, no more freezes.
If you're interested, this is how I fixed AfterBurner II for MiSTer:
https://github.com/MiSTer-devel/TurboGr ... pu65xx.vhd
The more recent of the IRQ fixes is the one you probably want. If I remember correctly, the issue was at the end of the IRQ handler, the IRQ flag is cleared, but it didn't take affect fast enough to prevent a second irq proccessing loop. The IRQ processing then tried to process the IRQ, but didn't know what generated it, so it called the wrong IRQ handler.