07225: Most machines in snk6502.cpp: Music playing incorrectly

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
07225	Sound	Minor	Always	Feb 8, 2019, 22:09	Feb 9, 2019, 14:27

Tester	Kekule	View Status	Public	Platform	MAME (Unofficial Binary)
Assigned To	Osso	Resolution	Fixed	OS	Other
Status [?]	Resolved			Driver	snk/snk6502.cpp
Version	0.206	Fixed in Version	0.207	Build	32-bit
		Fixed in Git Commit		Github Pull Request #

Summary	07225: Most machines in snk6502.cpp: Music playing incorrectly
Description	Music play quite wrong, example in vanguard the "energy" jingle and during the diagonal scrolling screens. Seems to be a lot of stuck notes and whole voices of music not playing.
Steps To Reproduce	Examples: fantasyg - as soon as music starts and balloon goes into flight, stuck/missing notes pballoon - music plays incorrect from the start vanguard - play and pass thru the ENERGY
Additional Information
Github Commit

Flags
Regression Version	0.199
Affected Sets / Systems	Most machines in snk6502.cpp

Attached Files

No.16120 Tafoid Administrator Feb 9, 2019, 02:03	Regression traced to June 2, 2018 work - one of 2 possible commits: https://github.com/mamedev/mame/commit/9c34fccdeed911abee3980515089a819c8e81b1c https://github.com/mamedev/mame/commit/e64244db48c2778c7fb6a2f69bab5fc13f63b524