06587: vf: Loss of Sound

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
06587	Sound	Major	Always	May 25, 2017, 21:59	May 26, 2017, 18:12

Tester	Tafoid	View Status	Public	Platform
Assigned To	AJR	Resolution	Fixed	OS
Status [?]	Resolved			Driver	sega/model1.cpp
Version	0.185	Fixed in Version	0.186	Build
		Fixed in Git Commit		Github Pull Request #

Summary	06587: vf: Loss of Sound
Description	Sound no longer plays using vr - virtual fighter
Steps To Reproduce
Additional Information	From .info post: http://www.mameworld.info/ubbthreads/showthreaded.php?Cat=&Number=366328 Specifically, the offending commit appears to be this: https://github.com/mamedev/mame/commit/8275551541111567becbee88ff485c1314c85916
Github Commit

Flags
Regression Version	0.185
Affected Sets / Systems	vf

Attached Files

No.13855 AJR Developer May 26, 2017, 18:12	The old implementation of the sound system avoided this problem by adding a FIFO which almost certainly doesn't exist in hardware. The current solution is to add a delay to the existing crude simulation of the unrelated I/O system, which gives the sound system time to finish its own setup before receiving the first command.