Viewing Issue Advanced Details
|ID||Category [?]||Severity [?]||Reproducibility||Date Submitted||Last Update|
|08275||Graphics||Minor||Always||Mar 28, 2022, 12:51||Mar 29, 2022, 22:47|
|Tester||MidnightWolf||View Status||Public||Platform||MAME (Official Binary)|
|Assigned To||Resolution||Open||OS||Windows 10/11 (64-bit)|
|Version||0.241||Fixed in Version||Build||64-bit|
|Fixed in Git Commit||Github Pull Request #|
|Summary||08275: thndrx2, thndrx2a, thndrx2j: [possible] Graphical corruption during stage 2|
|Description||On Thunder Cross 2, graphical corruption appears at the bottom of the screen, whenever the screen scrolls up or down during stage 2.|
|Steps To Reproduce||
- Start playing Thunder Cross 2 as normal.
- Play stage 2 as normal.
- When the route splits near the start of the level, when the screen scrolls up or down graphical corruption appears at the bottom of the screen.
- When the routes converge near the end of the level, when the screen scrolls up or down, graphical corruption appears at the bottom of the screen.
|Affected Sets / Systems||thndrx2, thndrx2a, thndrx2j|
001.png (688,728 bytes) Mar 29, 2022, 14:52 Uploaded by MidnightWolf
Bottom lines of screen scrolling up causes corruption
002.png (753,067 bytes) Mar 29, 2022, 14:53 Uploaded by MidnightWolf
004.png (937,350 bytes) Mar 29, 2022, 15:03 Uploaded by MidnightWolf
005.png (929,443 bytes) Mar 29, 2022, 15:03 Uploaded by MidnightWolf
006.png (718,405 bytes) Mar 29, 2022, 15:04 Uploaded by MidnightWolf
007.png (694,601 bytes) Mar 29, 2022, 15:04 Uploaded by MidnightWolf
Mar 29, 2022, 11:55
|If you are posting issue about graphics, you need to attach some screenshots as to when it happens and reference screenshots on how it is supposed to happen. Is it a regression? Did it work in MAME correctly before?|
Mar 29, 2022, 15:00
edited on: Mar 29, 2022, 15:13
I have checked all versions of MAME back to 0.235
Can confirm that the bug is present in 0.235, 0.236, 0.237, 0.238, 0.239, 0.240 and 0.241. I am unable to test earlier versions of MAME as i do not have them installed.
Screen shots uploaded. please notice the bottom of the screen, where graphics have a scrolling error and get broken when the screen scrolls up or down where the player is forced to choose a path at the beginning of stage 2, and where paths converge before the stage 2 boss at the end of the level.
I do not have any reference material of the official arcade machine, but highly doubt that this is correct behaviour. This bug does not occur in any version of FinalBurn Neo (FBNeo) emulator that i have tested.
Mar 29, 2022, 22:29
edited on: Mar 29, 2022, 22:33
I can confirm the behavior and a regression version - but until I can see a play of the original PCB, I will reserve full judgement. It may be excess stuff normally not seen off screen - much like the NES has a row of graphics as it scrolls up/down.
Flagged as possible.
Mar 29, 2022, 22:47
Traced to this commit:
- k052109.cpp fix/cleanup tilemap scrolls, fixes fuusenpn and MT6790
Unknown if it exposed actual PCB behavior or not which is why this is still flagged possible.