> > > What would help would be to find out when/why it regressed in MAME. Unless I'm > > doing > > > something wrong it doesn't even reach the attract mode now. > > > > My testing shows regression is only in the very current SVN.. like within the last > 2 > > days. If I had to guess, there was restructuring of PSX core and there is likely > > something missing or unattached after the move. > > Hmm, I tested it before the latest changes. I may investigate it further if I can > spare the time.
For the record, the original problem is that it frequently tries to DMA CD data over things you can't stomp, like the first 64k (the BIOS / OS uses that) and even the code that's currently executing. It's hacked to not do that enough that it'll run (modulo the IDE changes that just went in) but good luck