04012: ffight, area88, cawing: 30 impulses / second autofire doesn't work with game design "flaws"

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
04012	Gameplay	Minor	Always	Aug 22, 2010, 10:46	Mar 1, 2020, 20:19

Tester	Kale	View Status	Public	Platform	MAME (Self-compiled)
Assigned To		Resolution	No change required	OS
Status [?]	Closed			Driver	capcom/cps1.cpp
Version	0.139u1	Fixed in Version		Build
		Fixed in Git Commit		Github Pull Request #

Summary	04012: ffight, area88, cawing: 30 impulses / second autofire doesn't work with game design "flaws"
Description	In Final Fight is known that if you have a 30 impulses / second autofire and hit a barrel with it, gold bars should came out of each barrel. In Area 88 / Carrier Air Wing, pressing the autofire button on the shop and moving the lever to the left/right almost istantly, it's possible to "steal" items without paying them. These three issues doesn't happen in MAME emulation, almost certainly a bug in the CPS1 timings (missing delay/waitstate accessings).
Steps To Reproduce	Needs an HW 30 impulses / second autofire, or little MAME source code modifications (that I won't give for obvious reasons)
Additional Information
Github Commit

Flags
Regression Version
Affected Sets / Systems	ffight, area88, cawing

Attached Files

No.17447 Kale Developer Mar 1, 2020, 20:19	There was incorrect intel about this. For Final Fight you have to destroy a barrel then move the stick in a split frame (a motion seems to be enough). For Carrier Air Wing it's enough to use left + auto button 1 to steal starting from mission debriefing. Closing.