Topic: dink's FBN Development & Fixes thread

[retroFuture]

Last night I noticed a game-breaking graphical error on Pank Panic (bankp.zip)
[Lakka 3.3 / RetroArch 1.9.7 - FBNeo Core V1.0.0.03]
Large sections of the display are black on both the title screen and in-game.

[retroFuture]

Extremely minor/trivial glitch on Air Buster (airbustr.zip)
[Lakka 3.3 / RetroArch 1.9.7 - FBNeo Core V1.0.0.03]
Level intro text has 1 frame of glitched text as it types out.

[retroFuture]

More (extremely minor) glitches.
[Lakka 3.3 / RetroArch 1.9.7 - FBNeo Core V1.0.0.03]
Glitched level transition frames in Ghosts 'n Goblins (gng.zip) and Rolling Thunder 2 (rthun2.zip)

There are other games that have these tiny level transition bugs, but these are the 2 I've spotted so far.

[dink]

Hi retroFuture,
thanks for the nice reports!

So far I fixed Air Buster and Bank Panic.

Rolling Thunder 1 & 2 and Ghosts'n Goblins screen transition weirdness is known to be like that even on the real pcb - what's happening is the game takes several frames to update the vram because the cpu/bus speed on the pcb is a little slow.

best regards,
- dink

[barbudreadmon]

Ghosts'n Goblins screen transition weirdness is known to be like that

That's indeed how i remembered them, but since i didn't play on the actual cabinet for 30 years now, i was wondering if my memory was wrong.

[retroFuture]

Hi retroFuture,
thanks for the nice reports!

So far I fixed Air Buster and Bank Panic.

Rolling Thunder 1 & 2 and Ghosts'n Goblins screen transition weirdness is known to be like that even on the real pcb - what's happening is the game takes several frames to update the vram because the cpu/bus speed on the pcb is a little slow.

best regards,
- dink

Oh wow! That was fast! Good job!
Glad I can contribute to this project with my reports.
Really interesting to hear about GnG & RT1+2 behaving the same way on PCBs.
I should have checked them out on MAME as well to see if I could spot the same thing.
Anyway, I'll post bugs as I find them.
Your work is much appreciated

[Tatsuya79]

First part: added RunAhead feature to fbneo, it's really a nice feature:  seeing mario jump (nes_smb), a ship shoot (any shooter) or guy punch/kick instantly when you press a button is a good thing.  Really, it's a great thing!  Getting this working perfectly took about 1+1/2 days.

Not touching that one with a 40ft pole sorry.

'-No man ever steps in the same river twice, for it's not the same river and he's not the same man.'

― Heraclitus

  On a more serious note, to really see run ahead impact you have to stress the input a lot.

[Bad Dude]

Hello, Warriors!
Yes, I found a bug in the emulator. A very simple one. SoftFX Algorithm 3xBR when Enhanced (Direct3D 7) is enable, the game screen appears very small.

[dink]

Hi BadDude,
Can you please post a picture of your fbn window with the game loaded, and also your fbneo.ini from config subdir?

thanks and best regards,
- dink

[Bad Dude]

Hi BadDude,
Can you please post a picture of your fbn window with the game loaded, and also your fbneo.ini from config subdir?

thanks and best regards,
- dink

[retroFuture]

Galaga (Midway set 1 with fast shoot hack) (galagamf.zip)
[Lakka 3.3 / RetroArch 1.9.7 - FBNeo Core V1.0.0.03]

Game gets stuck at the end of the bootup sequence

[Gab75]

Galaga (Midway set 1 with fast shoot hack) (galagamf.zip)
[Lakka 3.3 / RetroArch 1.9.7 - FBNeo Core V1.0.0.03]

Game gets stuck at the end of the bootup sequence

I tested Galaga (Midway set 1 with fast shoot hack) [galagamf.zip] with the latest Windows exe and the game works fine... did you delete the related ini file in the "config" folder? In Windows the default path is *FBN/config/games.

[barbudreadmon]

Galaga (Midway set 1 with fast shoot hack) (galagamf.zip)
[Lakka 3.3 / RetroArch 1.9.7 - FBNeo Core V1.0.0.03]

Game gets stuck at the end of the bootup sequence

It doesn't seem to happen on my side (libretro too), i know lakka is always using "older" versions of the core, so maybe that's an issue that has been fixed since then ?
Or maybe you mistakenly set the "Freeze" dipswitch to "On" ? I get the exact same screen if i do that.

Edit : looking at https://github.com/finalburnneo/FBNeo/commit/635e24b2447bbea0171808a15a12058276159a0f, the issue might indeed be about lakka using an older version.

[retroFuture]

Edit : looking at https://github.com/finalburnneo/FBNeo/commit/635e24b2447bbea0171808a15a12058276159a0f, the issue might indeed be about lakka using an older version.

That is probably the case.

[dink]

retroFuture, I remember fixing that problem a few days back (maybe a week ago?).