title: How you disable the processor cache on a PowerPC processor?
body: <p>In our embedded system (using a PowerPC processor), we want to disable the processor cache. What steps do we need to take?</p>
  
  <p>To clarify a bit, the application in question must have as constant a speed of execution as we can make it.
  Variability in executing the same code path is not acceptable. This is the reason to turn off the cache.</p>