03916: arabian: Missing bird at top of the screen.

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
03916	Graphics	Minor	Always	Jul 2, 2010, 19:15	Dec 25, 2023, 15:52

Tester	-Misc Reporters-	View Status	Public	Platform	MAME (Self-compiled)
Assigned To	hackbar	Resolution	Fixed	OS
Status [?]	Resolved			Driver	sunelectronics/arabian.cpp
Version	0.138u2	Fixed in Version	0.261	Build
		Fixed in Git Commit	2a7298b	Github Pull Request #	#11868

Summary	03916: arabian: Missing bird at top of the screen.
Description	There is a bird which flies at the top of the screen, stopping in the the crow's nest on the ship. It drops occasionally more enemies to attack you. Strangely, this is not being done in the MAME version, though the test mode for the game shows graphics for this missing component to the game.
Steps To Reproduce
Additional Information	This may be one of couple things, conceivably: 1) Video showcasing a different romset 2) Simply missing the graphics implementation which may/may not be related to the simulation going on in the game. I tested back to 0.19 when it was first added to MAME .. there is no bird showing at any time. Also, I made a snap of the test mode which clearly shows the graphics for this bird. Received via email from Rogerio > 23/04/08 Noted first fixed 0.141 by Phil Bennett - reopened
Github Commit

Flags
Regression Version
Affected Sets / Systems	arabian

Attached Files	arabian.png (3,872 bytes) Jul 2, 2010, 19:26

No.06327 Phil Bennett Developer Jul 3, 2010, 19:24	Yeah, I'd bet money on this being related to the MCU simulation. Another target for the decapping project...
No.06330 Tafoid Administrator Jul 3, 2010, 23:36 edited on: May 31, 2012, 04:35	Added another video, again clearly showing the bird. Thanks again to Rogerio for locating.
No.06961 Phil Bennett Developer Dec 24, 2010, 11:19	With the MCU now emulated, the big blue bird is both visible in-game and on the high-score screen.
No.21293 Machone Tester Apr 7, 2023, 23:25	Not very familiar with this game, but it appears this bug has returned
No.21297 Tafoid Administrator Apr 8, 2023, 12:22	Seems MCU core was adjusted. I traced it, very likely, to work done on the mb88xx core - January 14, 2022 https://github.com/mamedev/mame/commit/a6addb11da8aa9f44ebf5449e8fe0d8c02f3d824 https://github.com/mamedev/mame/pull/9141 I've reopened the bug.
No.21393 hackbar Tester May 3, 2023, 04:31	Looking into this - reverting https://github.com/mamedev/mame/commit/a6addb11da8aa9f44ebf5449e8fe0d8c02f3d824 does fix this Arabian bug, but it glitches the namco54 sound in bosco. I'll see if I can fix this another way, since I think https://github.com/mamedev/mame/commit/a6addb11da8aa9f44ebf5449e8fe0d8c02f3d824 is correct.
No.21587 hackbar Tester Jun 24, 2023, 20:10	I think there's a bit flip in the 54xx decap ROM (byte 0x10 should be 0x3F, disabling interrupts at the beginning of the interrupt routine). Should be fixed by https://github.com/mamedev/mame/pull/11371
No.21892 cuavas Administrator Dec 25, 2023, 13:19	This may be fixed for 0.262: https://github.com/mamedev/mame/pull/11868 It would be good if people could test it.
No.21896 Osso Moderator Dec 25, 2023, 15:52	This also is fixed as far as I can see.