Final Burn Neo > FBN Development
new bug sound on neogeo and another
Stifu:
--- Quote from: barbudreadmon on June 02, 2019, 09:16:33 AM ---I think this behavior has always been there in the libretro port for neogeo games, it just never crossed my mind that it was different in standalone. And i think the half-sound bug in viewpoint is somehow related too.
--- End quote ---
For what it's worth, I remember this behavior being different between the old libretro fbalpha2012 and your version, with yours behaving better. That was around the time it got added to RetroPie. I remember the black screen blinking being only in fbalpha2012, but it's been so long I'm not 100% sure.
dink:
I figured out what's going on:
NeoInput[2] is NeoButton1 in d_neogeo.cpp.
NeoButton1 + 1 would make NeoInput[2] be 2. It's the P1 Select button.
Somehow Select and coin are being pressed at the same time in your input logic.
On standalone, if I press coin and select at the same time, it does exactly the same thing as this bug report states.
handy tip:
to get the raw input values in NeoInput or DrvInput[x], the formula is "1<<x"
x being the number after the variable. so for "NeoButton + 1", calculate 1<<1, which equals 2. (of course, analogx pcalc comes in handy here)
best regards,
- dink
--- Quote from: barbudreadmon on June 02, 2019, 12:40:26 PM ---Both 32bits & 64bits seem to suffer from the same issue.
NeoInput[2]'s value doesn't match when i press coin button : 0 in standalone, 2 in the libretro port
PS : there are a lot of "#if defined EMULATE_WATCHDOG" in this file, i inserted my printf at line 4695
Edit : i confirm forcing NeoInput[2]'s value to 0 fix the whole issue, any idea why there is a 2 in there when i press coin ? Some kind of overflow ?
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barbudreadmon:
It was the issue indeed, i map select buttons to controller's select button, and i do the same for coin buttons, i never noticed neogeo had both...
What's the use for neogeo select button anyway ? Is it only to select game on multi-slot board ? If so maybe i don't need to map it at all ?
Stifu:
--- Quote from: barbudreadmon on June 03, 2019, 02:27:05 AM ---What's the use for neogeo select button anyway ? Is it only to select game on multi-slot board ? If so maybe i don't need to map it at all ?
--- End quote ---
In Arcade / MVS mode, that's its only use AFAIK. I wonder if it gets more use in Home / AES mode. Maybe in game menus or UniBios menus?
barbudreadmon:
--- Quote from: Stifu on June 03, 2019, 04:03:43 AM ---Maybe in game menus or UniBios menus?
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That's what i though, but unibios seems to work fine without it. I asked a friend who owns an aes and he wasn't sure of this button's usage either.
For now i "disabled" the button in the libretro port, i'll re-enable it and map it somewhere else if it's somehow needed.
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