Crazycars2.dsk first car image use 32Ko of VRAM, it is now supported on "candidate 001" version of FPGAmstrad. OK in NEXYS4, KO in MiST (MiST version has 16Ko VRAM only (16Ko mirror (only C000-FFFF is scanned) and 16Ko+8Ko+4Ko displayed)
Ghouls'n'Ghost.dsl / Ecole.dsk does need the r52 reset instruction AND a RAM write when writing in ROM (RAM is beside ROM, hard to emulate with asynchronous RAM, MiST does use a hacked synchronous RAM done for that), but not all screen is displayed, music is OK in MiST.
A lot of demos don't pass, in fact I didn't find one that pass damn in NEXYS4 FPGAmstrad's version(I need to implement back the SDRAM hacked in MiST board FPGAmstrad version). 50% of [http://cpcrulez.fr/Scene_Demos/index.php CPCRULES demos] are running in MiST FPGAmstrad's version (is a lot of not passing ones are using the double-buffer VRAM that just needs more than 16Ko)cool ressource as it contains simple dsk formats.
Others bugs are about dsk format, in fact a dsk is uncompressed into RAM at startup, so all dsk access are direct: