Homebrew Retroarch for 3ds: cap32 core in 3ds - issues with load state and custom aspect ratio

[run1492]

Hello,

I will report two issues and a final question:

In RetroArch for Nintendo 3DS XL (USING LUMA CFW LATEST UPDATED ON MAY 2020), I've detected two problems: save states and custom aspect ratio.

I am using the cap32 core included in STABLE retroarch for 3ds, the latest version at 06/24/2020: retroarch 1.8.9
The core included in the stable version is Caprice32 "1.8.9 - cap32 (4-5 2fe00ca L0)" (The same problems happens in the nightly build of caprice32)

FIRST ISSUE: States: the SAVE state seems to work but every time I choose LOAD state, it crashes:

"An exception occurred" (in red letters)

Processor: Arm11 (core 0)
Exception type: data abort
Fault status: Permission - Section

(And the Stack dump appears on the lower 3ds' screen)

(The load state feature works on the other existing CPC core, CrocoDS, but I don't want to use it because the framerate is slow as hell with the video Vertical Sync on, and if I turn off it, the screen flickers and is a pain for the eyes. The sound is buggy there, too...)

SECOND ISSUE:

If I choose Aspect ratio Custom, the emulator starts correctly, but if after that I choose to load content (i.e. a .dsk game), the upper screen is BLACK and nothing appears there.



BUT, if I choose the aspect ratio = Core provided, then the game loads correctly, and then, if (with the game running) change again the aspect ratio to custom, it works !!!

So the problem seems to happen when aspect ratio is selected initially, because it works when you change it when the game is already running.

QUESTION(s):

The included retroarch cap32 core in the latest retroarch for 3ds (stable and nightly, i.e. from https://buildbot.libretro.com/stable/1.8.9/nintendo/3ds/) includes the latest changes in the code from github's project ?
Where can I download the latest compiled version OF THE CORE in cia version FROM THE WEB ? Is there a buildbot website that includes the 3ds cap32 core latest version ? or is only the buildbot.libretro.com the only option ?

Is there a chance that some developer fixes the two issues ?

VERY Thanks in advance for your attention and patience

 

[run1492]

These are the last log lines, where you can see how I save the state, and then I try to load it: the log just ends abruptly:

[INFO] Saving state: "sdmc:/retroarch/cores/savestates/Fruity Frank (UK) (1984) [Original] BO.state2".
[INFO] State size: 131329 bytes.
[INFO] State size: 131329 bytes.
[INFO]
[INFO]
[INFO] Loading state: "sdmc:/retroarch/cores/savestates/Fruity Frank (UK) (1984) [Original] BO.state2".
[INFO] State size: 131329 bytes.
[INFO] Saving state: "RAM".
[INFO] State size: 131329 bytes.
[INFO] State size: 131329 bytes.
Timings deviate too much. Will not adjus

 

[OO7Samurai]

Hi - Exactly the same problem with loading state - did you ever resolve it? (I'm going mad - no point in starting Spellboud Dizzy without being able to save and load