Searching for working emulators on netbsd/sparc64

Hi,

i am wondering if anyone knows working emulators or patches to get
emulators working on netbsd/sparc64.

So far i had only luck with dosbox.

The major ones like dosbox-x, mame, libretro, bochs, qemu, but also
single system emulators like xcpc, caprice32 are all either throwing
bus errors or are not working as expected.

Kind of working is also java8, but if you really try to use it, you
will find a lot of software uses x86 specifics today.

Maybe someone has gotten some other emulator running or patched one of
the major ones like qemu oder bochs up to run on netbsd/sparc64?

Regards,
Connor