MAMEWorld Forums - EmuChat - CPS2 emulation questions

I was into Vampire Savior and I read there are speed differences between the arcade cab and MAME, due to different frame rate. only solution for correct speed was to use mame-rr

also found this in dustloop which seems to be a CPS2 inherent issue.

these posts are over 3 years old. has the correct frame rate issue been addressed?

http://www.dustloop.com/forums/index.php...do-except-anak/

I've just tested using frame-by-frame controlled input in MAME in Vampire Savior, SFA2, SFA, and the original Darkstalkers, and reached the surprising conclusion that piano reversal inputs don't work in any CPS2 game from Darkstalkers onward (I didn't test any Marvel games, but I expect them to be similar, given that X-Men:COTA was released after Darkstalkers). In Darkstalkers and later games, when you press a button or buttons that complete a command input, it seems the engine always "consumes" the buffered joystick inputs whether you're in a state eligible to perform that move or not (by constrast, in SF2 the engine only "consumes" the buffered inputs if you actually perform the move)

However, I also tested SF3 3s and piano reversals do work in that game. This is not surprising, since we already know the SF3 engine has many differences from the CPS2 games in how inputs are processed--charge partitioning, toward-away-down-up as a valid alternate 360 input, etc.