Emulator

What steps will reproduce the problem?

1. What i did was play metroid prime with STC off, to see if STC was the
   cause of the issue at issue 636.
2. For the first time in hundreds of builds, it's stable enough to play as
   long as you want with STC off.
3. When i reach the area where the emulator always hangs, the emulator
   started spamming me with twi - instruction not implemented. Holding enter
   for some seconds made it go away, and i could keep playing normally.
   Eventually the thing popped up again, and i did the enter thing, once
   again. The third time it popped up, the emulator slowed down to less than 1
   fps, like it always does, and when i resized the screen it crashed again.

What is the expected output? What do you see instead?
Normal gameplay, no slowdowns to less than 1fps out of nowhere, no
shutdowns when resizing.

What version of the product are you using? On what operating system?
r2495

Please provide any additional information below.

Once the slowdown hits, it's impossible to get good fps back, only when
leaving fullscreen the game returns to somewhere around 10fps, and then
slowly starts going to less than 1fps again, that's when if you resize the
window, the emulator hangs.