Emulator

What steps will reproduce the problem?
1.Run a game that takes advantage of BBA with BBA activated in settings
PSO, Mario Kart:DD, and the socket test from DevkitPPC examples all get
the device ID right at startup
2. Will show it reading the Device ID twice in a row and then starts
getting unexpected IMM writes.

There can still be multiple Device ID reads, but when it's two in a row and
unexpected IMM writes start coming up, that's when you know it's a fail.

I tested in interpreter with both Mario Kart and PSO, both don't fail
there. So it seems to be a bug in JIT. This I can't fix since I'm not
familiar with the core work at all.