I found a new issue in my libretro port and was wondering if someone would be nice enough to help.
Here is the issue : Irem M72, M92 and M107 games work fine on my libretro/x86_64, but display a black screen on libretro/arm. I already tried other irem board, especially M90 which is quite similar to M72, and every games worked perfectly, so i'm pretty sure the issue is within d_m72.cpp, d_m92.cpp and d_m107.cpp . Seems to me like the BURN_ENDIAN_SWAP_INT16 not being inside a #ifndef LSB_FIRST in palette_write could be at fault, but i'm not really sure.