06721: pc_drmro, pc_mtoid, pc_ttoon: Audio loop

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
06721	Sound	Minor	Always	Oct 18, 2017, 13:02	Feb 2, 2022, 16:55

Tester	wuemura	View Status	Public	Platform	MAME (Official Binary)
Assigned To	kmg	Resolution	Fixed	OS
Status [?]	Resolved			Driver	nintendo/playch10.cpp
Version	0.190	Fixed in Version	0.241	Build	64-bit
		Fixed in Git Commit	64c9f31	Github Pull Request #	#9221

Summary	06721: pc_drmro, pc_mtoid, pc_ttoon: Audio loop
Description	After the game demo, there is a audio loop tone that gone forever when it get back to the "Playchoice" screen. I don't have more roms to test with, it might affect other machines too.
Steps To Reproduce	Start one of the listed games and let it run.
Additional Information
Github Commit

Flags
Regression Version
Affected Sets / Systems	pc_drmro, pc_mtoid, pc_ttoon

Attached Files

No.14298 Tafoid Administrator Oct 18, 2017, 14:38	I'd like confirmation on actual hardware before this gets looked at further. I'm not convinced that this isn't original behavior. It'll only happen on an actual machine, I'm sure, after you've entered credit/time, selected the machine and spent many dozens of seconds waiting out the transition to the control panel screen. Most games do not have lingering title screen tunes and who is going to spend up to half of their game time looking at the title screen before starting up? I'm fairly positive it was assumed that the game would be started by the user ASAP. If there is one issue is that, in forcing a single game run PlayChoice 10 entries, we force the game to "boot" whereas the original PlayChoice 10 machines will not "boot" until you choose the game from the selection screen after coining up. This setup will be better served by a multi-slot hookup much like we have for Neo Geo games and using the bios as the main set to run. That said, only pc_mtoid shows the hanging note as you described in my testing. pc_drmro was silent when it got to the control panel screen.
No.14301 wuemura Viewer Oct 18, 2017, 16:44	I've tested this with Linux official and GIT, still happens. pc_drmro loops audio at the control panel screen. When it does it return a bunch of this: [:cart:nesapu] invalid apu write: $00 at $0009 [:cart:nesapu] invalid apu write: $00 at $0009 [:cart:nesapu] invalid apu write: $00 at $0009 [:cart:nesapu] invalid apu write: $00 at $0009 hiscore: write_scores hiscore: write_scores output hiscore: write_scores end When the game resume demo mode and get out from "hiscore", the audio loop stop and get normal all over again until it get back to the control panel screen.
No.15171 Fujix Administrator Jun 13, 2018, 03:52 edited on: Jun 13, 2018, 03:55	Use the Critical severity only for an emulation discontinuation issue.
No.18403 Robbbert Senior Tester Jan 25, 2021, 09:44	Problem is now happening with pc_ttoon. It turns into a siren while in the attract mode. The siren goes on for a while before suddenly becoming normal again.
No.19729 kmg Senior Tester Jan 28, 2022, 01:52	Possible flag should be removed. This is unimplemented in mame/machine/playch10.cpp: WRITE_LINE_MEMBER(playch10_state::sound_mask_w) { /* should mute the APU - unimplemented yet */ }