05367: tx1, buggyboy, buggyboyjr: [possible] Bookkeeping says Credits A & B have a credit in it but i did not actually did so

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
05367	DIP/Input	Trivial	Always	Nov 17, 2013, 02:53	Dec 25, 2016, 22:52

Tester	scoobydude51	View Status	Public	Platform	MAME (Official Binary)
Assigned To		Resolution	Open	OS	Windows Vista/7/8 (64-bit)
Status [?]	Confirmed			Driver	tatsumi/tx1.cpp
Version	0.151	Fixed in Version		Build	Normal
		Fixed in Git Commit		Github Pull Request #

Summary	05367: tx1, buggyboy, buggyboyjr: [possible] Bookkeeping says Credits A & B have a credit in it but i did not actually did so
Description	Bookkeeping says Credits A & B have a credit in it but i did not actually did so. and then every time I hard reset or choose a different game and come back, both Credits A & B gain a credit. (again I did not put a credit it) if I delete the cfg file, the "counters" tag re-automates and I can NEVER get rid of it.
Steps To Reproduce
Additional Information
Github Commit

Flags	Possible
Regression Version
Affected Sets / Systems	tx1, buggyboy, buggyboyjr

Attached Files

No.09994 NekoEd Senior Tester Nov 17, 2013, 17:15 edited on: Nov 17, 2013, 17:23	Bookkeeping issues are hardly critical. Setting to trivial. I add for clarity that this is not an issue with the game per se, but with MAME's "Bookkeeping" menu, which does indeed increment Coins A and B on every hard boot of the game.
No.10005 scoobydude51 Tester Nov 19, 2013, 03:30	just added buggyboy and buggyboyjr because it does it too.
No.10009 hap Developer Nov 21, 2013, 09:34	Be aware that it's possible the game writes to the coincounters on purpose as part of boot-up self test.
No.13505 Kale Developer Dec 25, 2016, 22:52	TX-1 coin counters routes to sound CPU PPI8255 port C. The caveat is that PPI device defaults all ports to 0xff at bootup, so a flip/flop is used in there or this is a BTANB therefore setting to possible bug.