atomic driver does run fine since r004.7.2.
Spindizzy run fine.
Asphalt run fine... if you do not add gadget ROMs (same problem with Arkanoid II (Revenge of Doh))
A lot of demos don't pass in NEXYS4 FPGAmstrad's version (I need to implement back the SDRAM hacked in MiST board FPGAmstrad version). [http://cpcrulez.fr/Scene_Demos/index.php CPCRULES demos] is a cool ressource as it contains simple dsk formats.
TODO :
*Spindizzy
*Asphalt (tested on alpha but not on last version)
*Ghostbusters, Ghostbusters 2, Rambo III, Sorcery, Commando, Yie Are Kung Fu 2, Kane (shoot X/Y)