Re: [Qemu-devel] [PATCH v3 2/8] target/mips: Add all MXU opcodes

[Aleksandar Markovic]

> To clarify, if MXU is present (a cpu defined to have MXU instructions is 
> selected) we will never run any of the other special2 commands? That would 
> actually simplify the implementation.

If presence of "special2_legacy" instructions and presence of MXU instructions 
are mutually exclusive (and I believe they are (why would they occupy the same 
opcode space unless they exclude each other?), but at this time don't have 
enough CPU documentation materials to 100% confirm that), I think this is the 
way to go.

Thanks,
Aleksandar