06724: gauntleg, gauntdl: Various Effects Cause More Damage than they probably should (64-bit Only)

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
06724	Gameplay	Minor	Always	Oct 19, 2017, 20:37	Oct 22, 2017, 02:32

Tester	kirishima	View Status	Public	Platform	MAME (Official Binary)
Assigned To	tedgreen	Resolution	Fixed	OS
Status [?]	Resolved			Driver	midway/vegas.cpp
Version	0.190	Fixed in Version	0.191	Build	64-bit
		Fixed in Git Commit		Github Pull Request #

Summary	06724: gauntleg, gauntdl: Various Effects Cause More Damage than they probably should (64-bit Only)
Description	Several effects cause more damage than they should, probably because they are hitting more times than they are supposed to. Can kill enemies and players with high health when they are not supposed to. Effects affected include green and red barrels (any explosion in general), magic, turbo attacks, certain boss attacks. Mame 64 Video: Mame 32 Video:
Steps To Reproduce	Just use said affects. Walk up to a Golem(Giant Rock Creature) or Polar Bear for Ice Domain and use level 2 turbo or magic and watch it die instantly. Step on a red barrel and watch 2000+ health character die when it should only cause significantly less damage.
Additional Information	This is likely already a well known issue, but I was prompted to make a bug report on this because I couldn't find a bug report on this. Also I've been hearing talk of discontinuing 32-bit versions of mame. This, or these(since it affects alot of things) glitches do not happen in the 32-bit builds of mame.
Github Commit

Flags	64-bit specific
Regression Version
Affected Sets / Systems	gauntleg, gauntdl

Attached Files

No.14309 tedgreen Developer Oct 20, 2017, 17:24	I have confirmed that this only happens with DRC enabled. Running with nodrc fixes the bug.