Homebrew [HELP] Building RetroArch core (fuse-libretro)

[XXLuigiMario]

As there aren't any working ZX Spectrum emulators for 3DS, I've decided to try compiling fuse-libretro for it, since it supports ARM architectures and already works on most other platforms. I'm aware it may just crash but I think it's worth a try.
I managed to build it with Devkitpro and a custom Makefile getting a fuse_libretro.ctr.a file.
Does anyone know how to load it with RetroArch? Or build a .3dsx or .cia instead?

PS: I'm aware of ZXDS but it won't run using nds-bootstrap in TWLoader for now and it wouldn't utilize the whole screen anyway.

 

[BL4Z3D247]

This is most likely what you want... https://wiki.gbatemp.net/wiki/3DS_Homebrew_Development#3ds.2Fcia_homebrew

It's all in section 6.

 

[MrHuu]

The supported cores are build by placing the *CORE*_libretro.ctr.a file in the /retroarch/dist-scripts/ folder.
From /retroarch/dist-scripts/ execute: './dist-cores.sh ctr'
This will build the cores defined in /retroarch/ctr/Makefile.cores in bulk.

You could try to add an entry for your core to the Makefile.cores file.


*Replace *CORE* with the name of your core: 'fuse' in your case.
Link to libretro's 3DS Compilation / Development guide:
https://bot.libretro.com/docs/compilation/3ds/

 

[confounded]

Did you get this working? I'd love to have a portable speccy emulator again.

 

[confounded]

I managed to get it to compile but it crashes when loading a tape image. Here are the files I modified if anyone else wants to have a go.

 

[MrHuu]

I also have a compiled version, but didn't get anything to load. Besides that, no keyboard mapper available.

 

[XXLuigiMario]

Did you get this working? I'd love to have a portable speccy emulator again.

I managed to get it to compile but it crashes when loading a tape image. Here are the files I modified if anyone else wants to have a go.

I never got it to work either but forgot to report on it.
I ended up just using ZXDS with a flashcard, it's a shame there isn't a proper spectrum emulator for 3DS but then again I guess there isn't that much demand for one.