09193: jking200pr and all starzan dependents: Graphical or security error causes the appearance of a character that does not exist in the original game

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
09193	Graphics	Major	Always	16 days ago	13 days ago

Tester	mdqgames	View Status	Public	Platform	MAME (Self-compiled)
Assigned To	Osso	Resolution	Fixed	OS	Windows 10/11 (64-bit)
Status [?]	Resolved			Driver	igs/igs017.cpp
Version	0.278	Fixed in Version	0.279GIT	Build	64-bit
		Fixed in Git Commit	bf24eb3	Github Pull Request #

Summary	09193: jking200pr and all starzan dependents: Graphical or security error causes the appearance of a character that does not exist in the original game
Description	When exiting the game and returning, when placing credits in place of Tarzan, several pink whales are shown. It seems that the problem occurs when the nvram receives some writing and activates the error or security, causing the failure.
Steps To Reproduce	Turn on the game, the first time it will say "System reset" (probably due to lack of DIP mapping), exit the game and when you return insert credit and the whales will be shown. Sometimes after a few rounds, the screen randomly fills with characters from the game polluting the entire screen.
Additional Information
Github Commit

Flags
Regression Version
Affected Sets / Systems	jking200pr and all starzan dependents

Attached Files	514383988_732551729365037_8045972111402053885_n.jpg (370,894 bytes) 16 days ago Uploaded by mdqgames
Attached Files	IMG_20250704_155258.jpg (2,360,643 bytes) 13 days ago Uploaded by mdqgames one of the errors mentioned occurs randomly

No.23404 Robbbert Moderator 15 days ago edited on: 15 days ago	I can confirm that the pink whales show when a credit is first inserted. However, I cannot say if this is an issue or not. Unable to get the screen to fill up with unwanted characters. When testing, note that the Z key does both BET and STOP (unless you turned on auto-stop).
No.23406 mdqgames Tester 15 days ago	In version 0.277 the whales were not appearing, the problem probably started when implementing nvram saving using the shared Map from "iqblocka". Maybe starzan needs his own map, the nvram also seems to be smaller than it should be.
No.23409 Haze Senior Tester 15 days ago	not saving the full nvram properly would certainly cause such issues
No.23411 mdqgames Tester 15 days ago	That's exactly the problem, the nvram is not complete, the first part is completely empty and the file is only 4kb, when in fact it should be 32kb. The iqblocka mapping only works partially for the starzan set
No.23412 Osso Moderator 14 days ago edited on: 14 days ago	Setting double the amount of NVRAM seems to fix the issue. I'll commit later today but please leave the bug open until the OP or someone else who knows how to play these games test them a bit more. Same problem also affects the sets based on the tarzan machine config.
No.23420 mdqgames Tester 14 days ago	Ok, when the update is available I will start testing and confirm here. Thanks, Osso.
No.23428 JimCarlTay Tester 13 days ago	Fixed in commit bf24eb3 by Osso.
No.23429 mdqgames Tester 13 days ago	Unfortunately the screen fills with characters randomly, I don't know if it is after a certain number of rounds or cash value is reached.