09516: sandor, thunt, thuntk: game hangs during 2nd gameplay attract demo (music continues)

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
09516	Crash/Freeze	Major	Always	Aug 7, 2026, 14:37	Aug 8, 2026, 01:38

Tester	Haze	View Status	Public	Platform	MAME (Self-compiled)
Assigned To	Kale	Resolution	Fixed	OS	Windows (x64)
Status [?]	Resolved			Driver	sega/stv.cpp
Version	0.289	Fixed in Version	0.290GIT	Build	x64
		Fixed in Git Commit	75e9e36	Github Pull Request #

Summary	09516: sandor, thunt, thuntk: game hangs during 2nd gameplay attract demo (music continues)
Description	hangs on a static screen with music playing, no inputs respond
Steps To Reproduce	run the game, leave in attract mode until the 2nd game demo comes up
Additional Information
Github Commit

Flags
Regression Version
Affected Sets / Systems	sandor, thunt, thuntk

Attached Files	0000.png (29,744 bytes) Aug 7, 2026, 14:38 Uploaded by Haze

No.24563 Haze Senior Tester Aug 7, 2026, 14:38	hangs at the screen shown, not sure if this is a recent regression or not.
No.24564 Haze Senior Tester Aug 7, 2026, 14:39	not a DRC issue either, happens with -nodrc as well
No.24565 Kale Developer Aug 7, 2026, 18:42	It's an atomicity problem, INTERLEAVE_DIV = 32 rather than 128 in Saturn DCC seems to fix it. Have to think about it, definitely want a better solution overall ...
No.24566 Kale Developer Aug 7, 2026, 18:44	It also happens asap by starting a game, like it hangs at the first intro with partial graphics.
No.24567 Kale Developer Aug 7, 2026, 22:03 edited on: Aug 7, 2026, 22:04	Whatever, I have another test case so I'm gonna bump it then think about a real solution later.
No.24568 danylopez123 Tester Aug 8, 2026, 01:38	If I remember as well, this sort-of happened during the minigame that haves some sort-of Bruce Lee character with a towel, in this minigame it did one of 2 things: Lock the controls or crash after a while after that minigame.