03580: chainrec, magdrop, magdropp: [debug] Access Violation

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
03580	Crash/Freeze	Minor	Have not tried	Dec 14, 2009, 03:50	Feb 25, 2010, 22:32

Tester	Firewave	View Status	Public	Platform	MAME (Self-compiled)
Assigned To		Resolution	Unable to reproduce	OS	Windows XP (64-bit)
Status [?]	Closed			Driver	dataeast/simpl156.cpp
Version	0.135u3	Fixed in Version		Build	Debug
		Fixed in Git Commit		Github Pull Request #

Summary	03580: chainrec, magdrop, magdropp: [debug] Access Violation
Description	The message from chainrec (the other show the same function name): ----------------------------------------------------- Exception at EIP=00521C23 (deco16_tilemap_34_combine_draw+0x022c): ACCESS VIOLATION While attempting to read memory at 18412742 ----------------------------------------------------- EAX=18412742 EBX=0000007F ECX=0000BD00 EDX=00000010 ESI=0000F428 EDI=0000BD00 EBP=0022FAA8 ESP=0022FA40
Steps To Reproduce
Additional Information
Github Commit

Flags	Debug build specific
Regression Version	> 0.135
Affected Sets / Systems	chainrec, magdrop, magdropp

Attached Files

No.05278 Haze Senior Tester Dec 15, 2009, 00:10	I still can't get any repro on this, and I've looked over those functions plenty of times and can't see a bug. There clearly is one, because it keeps cropping up, but I'm really not even getting the slightest indication that anything is wrong when running them, or any other Deco game here.
No.05279 Tafoid Administrator Dec 15, 2009, 00:14	Yeah.. there seems to be weirdness with deco32 and simpl156.c, in particular. I couldn't repro it.. so I simply acknowledged it until someone with interest can tackle it :)
No.05761 etabeta Developer Feb 25, 2010, 13:32	as in my comment to 02990 , the weirdest thing of all is that simpl156.c does not use deco16_tilemap_34_combine_draw at all! However, in next MAME update, the deco 16bit video chips have been converted to be devices, hence I suggest to give a last try to reproduce this. if it is still impossible to reproduce it, we should close the report.
No.05777 Tafoid Administrator Feb 25, 2010, 22:32	I'm testing a current SVN (pre-0.136u4) unable to confirm any set in debug build. Closing.