Target is a 386 with additional instructions from 486+ if needed.
This is independent (except for some undefined flags behaviours)
from the core setting.

Thanks. Is there any kind of virtual 387/FPU functionality? I suppose not, since that would probably only be a pointless drain on performance?

yes FPU is present

Ahh, okay. So 386 era software that tests the CPU will generally identify a 386DX and 486+ era software will identify a 486DX, then?

Nope, it depends on how they test. Usually the tests aim at very specific
behaviour of chips so most of the test apps report some rather strange
cpu but almost never an intel 386 or 486.

Interesting, thanks.