09431: prosporta: Internal crash in attract mode after 95 seconds

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
09431	Crash/Freeze	Minor	Always	5 hours ago	4 hours ago

Tester	Robbbert	View Status	Public	Platform	MAME (Self-compiled)
Assigned To		Resolution	Open	OS	Windows (x64)
Status [?]	Confirmed			Driver	dataeast/liberate.cpp
Version	0.287	Fixed in Version		Build	x64
		Fixed in Git Commit		Github Pull Request #

Summary	09431: prosporta: Internal crash in attract mode after 95 seconds
Description	Game listed as working. After running in attract mode for a while, a tennis court shows, some music starts, then the music gets quieter, the screen fills with garbage and then freezes. MAME keeps running (no crash), but the game is no longer working. You can still insert coins and get a tone, but unable to start a game. The parent "prosport" has no problem.
Steps To Reproduce	>mame prosporta Press a key to skip the orange warning. Let it run for a while until the sound starts playing and watch. The error log is full of unmapped writes to main memory.
Additional Information
Github Commit

Flags
Regression Version	0.227
Affected Sets / Systems	prosporta

Attached Files

No.24306 Osso Moderator 4 hours ago edited on: 4 hours ago	got worse in 0.227 (not that it was working much better before). Possibly this commit here: https://git.redump.net/mame/commit/src/mame/drivers/liberate.cpp?id=a6a2174185a24d5a9295f5103ab6f4815db737d1