06066: All gtfore sets: Video playback and gameplay run too fast

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
06066	Speed	Minor	Always	Nov 7, 2015, 04:06	Nov 10, 2015, 17:33

Tester	geforcefly	View Status	Public	Platform	MAMEUI
Assigned To		Resolution	Open	OS	Windows Vista/7/8 (64-bit)
Status [?]	Confirmed			Driver	itech/iteagle.cpp
Version	0.167	Fixed in Version		Build	64-bit
		Fixed in Git Commit		Github Pull Request #

Summary	06066: All gtfore sets: Video playback and gameplay run too fast
Description	The attract videos in all versions play much too quickly, and in game, the game runs too fast. The emulated 3dfx GPU never slows down like it does on real hardware (as if it had an unlimited clock speed). It otherwise plays like it should. (gameplay on real hardware running GT Complete, medium resolution; note the framerate drops and overall pace of gameplay
Steps To Reproduce	Just play the game in MAME without making any adjustments
Additional Information	If the emulated CPU speed is slowed to about 79%, it matches the performance of the real hardware in terms of attract video playback and gameplay speed.
Github Commit

Flags	Verified with Original
Regression Version
Affected Sets / Systems	All gtfore sets

Attached Files