| ID | Category [?] | Severity [?] | Reproducibility | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 08840 | Gameplay | Minor | Always | Mar 22, 2024, 13:53 | Mar 30, 2024, 18:41 |
| Tester | dink | View Status | Public | Platform | MAME (Official Binary) |
| Assigned To | hap | Resolution | Fixed | OS | Windows Vista/7/8 (64-bit) |
| Status [?] | Resolved | Driver | |||
| Version | 0.263 | Fixed in Version | 0.265 | Build | 64-bit |
| Fixed in Git Commit | 914b1d9 | Github Pull Request # | |||
| Summary | 08840: avengers, buraiken: avengers/buraiken mcu synchronicity issue | ||||
| Description |
Hi Haze & AJR, I hooked up the mcu in fbn in similar fashion to MAME, and got a different effect when the game starts: With dips set to normal, the first set of enemies that come out circle around the player, basically avoiding the player at any cost if they havn't moved yet. I spent a few days debugging and thinking the problem was with my impl, but, it's not. The problem is, MAME is actually missing a good latch write which tells the MCU to go after the inverse of the player's coordinates (meaning: don't touch the player) at the game start. Of course, if you put the difficulty to hard, they will go right for the player 1 @ start, but @ normal, you'll see the enemies do their very best to avoid the player. Here's the proof: load up avengers, open debugger and watch the error log. As the game starts and the enemies come on-screen, you'll see the previous latches should be FF on a missed latch, except for 1: B6. Basically, the mcu "not sending a command" is FF and "an actual command" is !FF. |
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| Steps To Reproduce | |||||
| Additional Information | |||||
| Github Commit | |||||
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| Regression Version | |||||
| Affected Sets / Systems | avengers, buraiken | ||||
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Attached Files
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 avengers.png (37,572 bytes) Mar 22, 2024, 13:53 Uploaded by dink | ||||
 No.22019
hap Developer
Mar 24, 2024, 01:16
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Try again after this? https://github.com/mamedev/mame/commit/914b1d97338d0d98dda93b9302a0867a40c82963 config.set_maximum_quantum(attotime::from_hz(10000)); <-- that's what got rid of the 'bad' warnings. |
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 No.22035
dink Tester
Mar 30, 2024, 13:25
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Thanks hap, it's perfect |