09563: kbm, kbh: Test mode freezes when attempting to exit

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
09563	Crash/Freeze	Major	Always	1 day ago	1 day ago

Tester	JimCarlTay	View Status	Public	Platform	MAME (Official Binary)
Assigned To		Resolution	Open	OS	Windows (x64)
Status [?]	Confirmed			Driver	konami/firebeat.cpp
Version	0.289	Fixed in Version		Build	x64
		Fixed in Git Commit		Github Pull Request #

Summary	09563: kbm, kbh: Test mode freezes when attempting to exit
Description	When at the exit screen when exiting test mode, you may not be able to exit from test mode even if you are pressing either Start button (1P/2P) to do so, thus appearing as it froze at that point.
Steps To Reproduce	1. Load the game. 2. Go to test mode to clear the backup RAM and initialize the sound flash. 3. Attempt to exit from test mode.
Additional Information	A workaround would be to perform a soft reset, but it is expected that the game should re-run the POST sequence and boot to attract mode immediately once exiting from test mode. Severity is Major instead of Critical due to said workaround.
Github Commit

Flags
Regression Version
Affected Sets / Systems	kbm, kbh

Attached Files

No.24744 JimCarlTay Senior Tester 1 day ago	My mistake. I have originally reported this as lack of sound in game, but initializing the sound flash in test mode fixes that. Therefore, the main issue in that game is the inability to exit from test mode since it looks like the game may not register the pressing of both start buttons to do so.
No.24745 JimCarlTay Senior Tester 1 day ago	Or it could be that it freezes after I press either Start button. Let me revise that.
No.24746 Robbbert Moderator 1 day ago edited on: 1 day ago	It's known that pressing 1P&2P (to enter a submenu) is problematic, requiring multiple attempts. When trying to exit, nothing responds, as you said. So it's confirmed. In the debugger, when 1P is pressed at the exit screen, in kbm it jumps to 0x800BB140 where it jumps to itself, therefore the game cannot proceed.