Changes

If <code>what</code> is 0 or any invalid value, nothing is done.  

If <code>what</code> is 0 or any invalid value, nothing is done.  

If it is 1, <code>val != 0</code> is written to the global variable enabling ERR:F-format register dumps on user-mode CPU/VFP exceptions. The function handling it reads fields from the faulted or the main thread's TLS and most often writes the data structure on the faulted thread's stack.  

If it is 1, <code>val != 0</code> is written to the global variable enabling ERR:F-format register dumps on user-mode CPU/VFP exceptions (the VFP exception handler acts as if this variable was always true and works on retail environments). The function handling it reads fields from the faulted or the main thread's TLS and most often writes the data structure on the faulted thread's stack.  

If 2, kernelpanic will be called when svcBreak is used by a non-attached process

If 2, kernelpanic will be called when svcBreak is used by a non-attached process