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ID Category [?] Severity [?] Reproducibility Date Submitted Last Update
08734 Sound Major Always Jul 21, 2023, 11:18 Jul 22, 2023, 23:12
Tester hap View Status Public Platform MAME (Official Binary)
Assigned To hap Resolution Fixed OS Windows 10/11 (64-bit)
Status [?] Resolved Driver
Version 0.256 Fixed in Version 0.257 Build 64-bit
Fixed in Git Commit b055029 Github Pull Request #
Summary 08734: beezer: Randomly, game boots without sound
Description beezer: Randomly, game boots without sound.
No sound at all.
Steps To Reproduce - mame.exe beezer
- hold INS to fast forward
- if you get sound, exit MAME and retry

I can repro it around 1 out of 6 times.
Additional Information 6840 PTM IRQ gets stuck high, causing the sound cpu to enter an infinite irq loop.

The VIA writes to the PTM before PTM does its device_reset.
ptm6840_device does not zerofill its class variables until reset.
Github Commit
Regression Version
Affected Sets / Systems beezer
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