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Viewing Issue Advanced Details
ID | Category [?] | Severity [?] | Reproducibility | Date Submitted | Last Update |
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08716 | Gameplay | Minor | Always | Jul 10, 2023, 22:58 | 23 days ago |
Tester | johnmcallister | View Status | Public | Platform | MAME (Official Binary) |
Assigned To | Resolution | Open | OS | Windows 10/11 (64-bit) | |
Status [?] | Acknowledged | Driver | |||
Version | 0.250 | Fixed in Version | Build | 64-bit | |
Fixed in Git Commit | Github Pull Request # | ||||
Summary | 08716: alpine, alpinea: Timer runs faster than arcade hardware. | ||||
Description |
The in game timer runs around 5 seconds faster in 1 downhill run which takes 23.5 in game for arcade and 28.5 in mame. The actual real time is within 1/2 second though. You can find the information here, videos and description. https://www.twingalaxies.com/showthread.php/262022-Arcade-Alpine-Ski-Points-Tournament-Settings-999-999?p=1192607&posted=1#post1192607 |
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Steps To Reproduce | Always happens | ||||
Additional Information | I tried in 106 and 250 and is the same. | ||||
Github Commit | |||||
Flags | |||||
Regression Version | |||||
Affected Sets / Systems | alpine, alpinea | ||||
Attached Files
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Relationships
There are no relationship linked to this issue. |
Notes
1
No.22444
hap Developer
23 days ago
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Looks like it's a Z80 waitstate issue, schematics show that the WAIT pin is connected to several things. If you underclock the maincpu in MAME, it affects the game timer rate. Strange that they didn't use a vsync counter for the timer. |
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