I am running Mame as a SGI Indigo on a Pinebook Pro (an ARM based laptop)
It is slow. But it a SGI Indigo on my $200 laptop. I was so thrilled to see that’s possible :-D
Apparently SGI emulation is very slow. I'm not familiar enough with MAME, so I wonder if this is expected performance for such a complex system in MAME or it can be significantly improved in the future.
I guess the hardware is similar enough.