05570: xsleena: Massive slowdowns when a lot of graphics on screen

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
05570	Speed	Major	Always	May 4, 2014, 09:32	May 6, 2014, 22:27

Tester	Beylie	View Status	Public	Platform	MAMEUI
Assigned To		Resolution	Bugs That Aren't Bugs	OS	Windows Vista/7/8 (64-bit)
Status [?]	Resolved			Driver	technos/xain.cpp
Version	0.153	Fixed in Version		Build	Normal
		Fixed in Git Commit		Github Pull Request #

Summary	05570: xsleena: Massive slowdowns when a lot of graphics on screen
Description	The game slows down dramatically when a lot of graphics are on screen. This is especially noticeable near the end of each level when the game sends many enemies your way just before you get to the boss. Game also slows down dramatically in the space levels before choosing a new planet to attack. I played this game extensively as a kid and I don't recall the game slowing down so much that it almost becomes unplayable.
Steps To Reproduce	Play game to end of level (or space levels) or wait for many enemies to attack.
Additional Information	Has been discussed in http://mametesters.org/view.php?id=2742, but game was never this slow.
Github Commit

Flags	Verified with Original
Regression Version
Affected Sets / Systems	xsleena

Attached Files

No.10677 zaxxon Tester May 4, 2014, 09:54 edited on: May 4, 2014, 09:56	im not sure if the real pcb is much better, you can check the youtube video below of the actual arcade pcb to see a lot of slowdowns in this game, example: fast forward 11:30 minutes into the video below (mind you, is that a bootleg or original pcb he is using anyone?) little 'cheat' if you want to play this game with less slowdowns: enable cheats in mame ('cheats 1' in mame.ini), load xain sleena, go into mame config menu, go into the 'slider controls' submenu, then where it says 'overclock cpu' set those to 200%.. now play the game with much less slowdowns
No.10681 Beylie Tester May 6, 2014, 19:59	Hmmm... you're absolutely right. If the PCB does this, then MAME emulates it correctly indeed. Perhaps as a kid I just ignored the slowdown because I was more involved in the game? Thank you for your tip though and thank you for the video!
No.10683 Tafoid Administrator May 6, 2014, 22:26	Thanks for the video and feedback comments. We'll mark this as BTANB which will leave it open in case more comments are needed.