04218: Kof2000 is loaded two times

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
04218	Crash/Freeze	Minor	Always	Jan 29, 2011, 22:35	Jan 31, 2011, 15:41

Tester	acd2001	View Status	Public	Platform	MAME (Official Binary)
Assigned To		Resolution	Invalid report	OS	Windows XP (32-bit)
Status [?]	Closed			Driver	neogeo/neogeo.cpp
Version	0.141	Fixed in Version		Build	Normal
		Fixed in Git Commit		Github Pull Request #

Summary	04218: Kof2000 is loaded two times
Description	kof2000 is loaded two times. First load screen is black. It resets and load again normally. Memory usage is 700 mega!
Steps To Reproduce	Fresh install official mame 0.141 32 bit and copy in roms folder kof2000.zip and neogeo.zip. Start mame. Second run is ok. In my 0.141u1 compile is the same.
Additional Information
Github Commit

Flags
Regression Version
Affected Sets / Systems

Attached Files

No.07164 Tafoid Administrator Jan 29, 2011, 22:55	Oh, you mean when you first boot the game? When it start and then it goes back screen and restarts again, that is simply the game restarting itself with a properly initialized/valid battery backup ram file (.NV). This only happens that one time and will not happen on subsequent game runs, provided the .NV data is not corrupted. This is expected behavior for many neogeo sets and I honestly do not believe there is a bug here.
No.07167 acd2001 Tester Jan 30, 2011, 02:25	Tafoid you are right.! Please close it. Sorry to beg mametesters
No.07170 Haze Senior Tester Jan 31, 2011, 15:41	There are a couple of NeoGeo games that do this.. It's actually a form of protection. They're testing the watchdog on the first boot. The code sits in a loop waiting for the watchdog to reset it. If that loop expires without the watchdog kicking in then the game writes a value to NVRAM indicating that the 'protection' check failed. It's to prevent the games running on bootleg MVS units without the watchdog circuits. So yes, it's correct, but if you're curious, that's why it happens.