[PATCH v3 1/2] sim: Add nanoMIPS port

[Aleksandar Rikalo]

Hello Mike,

Compared to the first version, all of your comments have been addressed and patches are re-based onto the current master branch.

These changes depend on the patches(*) for Binutils, which we just updated, so I'm also preparing a new version (v4) for sim and gdb.
The changes will be minor, so the review can be done on this version (v3) as well.

(*) https://sourceware.org/pipermail/binutils/2022-November/124640.html

> is everyone's copyright papers in place ?

As far as I know, everyone's copyright papers are in place.

> seems odd that you're using a new "nanomips*" tuple instead of existing
> "mips*" space.  but i guess if you've convinced everyone else that this
> isn't wrong, then sim/ will just follow.

I think all the other tools use "nanomips*" tuple. I'm sure about GCC, QEMU, and Valgrind.

Thank you for your time.

Aleksandar