dowdle wrote:Yes, the fxcast core is the current Atari ST core. According to its creator, it has very specific design goals... a cycle-accurate 68000 (8MHz I believe), all of the support chips provided in the original ST model... with TOS 1.0 baked-in. What it does, it does very well as the vast majority of games and demos run on it very well... just like the real thing.
It actually has some nasty bugs.. one being the odd default video mode the core has, on many monitors (mine included) it fails to produce a compatible signal so you cant even see the core output or even mister menu, nada, nothing. just (on my display a floating box saying INVALID SIGNAL) .. i had to blindly .. by keypress alone (provided by someone telling me which keys to press in what order) force the 60hz display mode.. it also defaults to 16x9 and doesnt respect aspect ratio (both of these are due to its lack of supporting the now common mister frame buffer).. It lacks disk-writes, locked in UK TOS 1.0 (would be nice to have the option to use US TOS 1.0 or others etc) .. and a slew of other things.. while yes its cycle accurate its broken in many many ways.. and without the source being published, no one can take up addressing these faults unfortunately. .. the author seems to have lost interest or has had other life issues crop up (which happens)..
personally id rather have a working less accurate open source core than an accurate, closed source, incomplete/fundamentally broken core we got now.
Lastly, Sorgelig is correct in saying that a complex system like the Atari ST needs someone who understands it at a deep level.. right now I dont think there is anyone out there who does and has time to do it.