03164: fhawk, fhawkj: Rare sprites'bug

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
03164	Graphics	Minor	Random	May 11, 2009, 00:08	Dec 15, 2015, 03:15

Tester	Kekule	View Status	Public	Platform	MAMEUI
Assigned To		Resolution	Reopened	OS
Status [?]	Confirmed			Driver	taito/taito_l.cpp
Version	0.131u1	Fixed in Version	0.154	Build	Normal
		Fixed in Git Commit		Github Pull Request #

Summary	03164: fhawk, fhawkj: Rare sprites'bug
Description	Rarely, some sprites stuck over the background. May be an original bug.
Steps To Reproduce
Additional Information
Github Commit

Flags
Regression Version
Affected Sets / Systems	fhawk, fhawkj

Attached Files	0000.png (14,236 bytes) May 11, 2009, 05:26
	0001.png (15,197 bytes) May 11, 2009, 05:26
	0021.png (16,937 bytes) Jun 6, 2014, 19:11 Uploaded by haynor666 latest svn
	fhawk0002.png (20,028 bytes) Dec 14, 2015, 13:32 Uploaded by haynor666 mame 168
	fhawk0006.png (18,868 bytes) Dec 14, 2015, 13:32 Uploaded by haynor666 mame 168

No.04366 Fujix Administrator May 11, 2009, 05:36	How come you think this might be an original behaviour?
No.04370 Mamesick Senior Tester May 11, 2009, 06:20	it could be the interrupt hack introduced a while ago to fix the slowdowns and that causes other problems in the driver. I think it's time to remove it, even if I have not proofs it's related to this issue too.
No.08873 moa Tester Aug 13, 2012, 20:43	It seems fixed in 146u4
No.08882 robiza Developer Aug 27, 2012, 11:48	It seems fixed; someone can confirm?
No.09021 Haze Senior Tester Oct 11, 2012, 03:30	the sprites are still glitchy at times, IMHO Mamesick is right and it's the interrupt hack, Not sure I can do much about it, but i'll keep it in mind when I convert this to use the common device.
No.10739 haynor666 Tester May 27, 2014, 20:09	in 153 problem still remains. Issue should be reopened ?
No.10745 Haze Senior Tester May 30, 2014, 11:40	yes, it was never fixed.
No.10749 hap Developer Jun 2, 2014, 16:10	how about now? r30775 [Mamesick]
No.10751 haynor666 Tester Jun 2, 2014, 18:30	I didn't noticed any graphics bugs. Played till half of second level. Also I didn't noticed slowdowns.
No.10754 hap Developer Jun 2, 2014, 21:09	ok
No.10758 moa Tester Jun 4, 2014, 06:01	how about now? r30775 [Mamesick] Still buggy with my home build (none optimized 32bits)
No.10759 haynor666 Tester Jun 4, 2014, 08:43 edited on: Jun 4, 2014, 09:17	I'll retest latest SVN build using 64 bit version. You are using most recent source from redump.net ? EDIT. I was able to reproduces this by allowing to stay many object on screen at once (by shooting once on tanks not destroying them completly). After a while with many object like this some indeed stay on screen in one position while background is scrolling. If fact only partially shoot down tanks does have this behaviour. Retested on computer at work with default mame values and core i5 2400 but this probably does not matter. Here is video from PCB
No.10761 Mamesick Senior Tester Jun 4, 2014, 15:03	Are there proofs is it a real MAME bug? As far as I read from Haynor666, it happens only on particular conditions... and the PCB video doesn't help too much. I'm happy the slowdowns are gone away even with the irq hack removal, though.
No.10762 haynor666 Tester Jun 4, 2014, 17:51 edited on: Jun 4, 2014, 20:11	I watch today also attract mode. There at least 4 different levels shows on the fourth even chopper stalls on screen. We need at least video from attract mode with 4 levels shown.
No.10767 Haze Senior Tester Jun 6, 2014, 10:28	now? (30859)
No.10768 haynor666 Tester Jun 6, 2014, 16:28	No problems on attract mode, I've played through half of first level and no problems as well but since I didn't reproduced this first time it might good idea to wait for feedback form other testers :]
No.10770 Mamesick Senior Tester Jun 6, 2014, 17:35	It seems fixed now.
No.10771 haynor666 Tester Jun 6, 2014, 19:10	Sadly it's not. Sometimes game starts and it's ok but sometimes sprite problems reappears.
No.12243 haynor666 Tester Dec 14, 2015, 13:33	The issue is still not fixed. Sometime (as You can see on screenshots) is visible right from the beginning, sometimes after You play some time.
No.12254 Haze Senior Tester Dec 15, 2015, 02:55	I'll set it back to confirmed then.. perfect interleave definitely helped, but clearly there's more to it.