ExpAcquireSpinLockDisabled

UINT8 __stdcall ExpAcquireSpinLockDisabled(UINT64 *Lock){
  __int16 v2; 
  bool v3; 
  __int16 v5; 
  UINT64 SpinCount; 

  LODWORD(SpinCount) = 0;
  v2 = v5;
  _disable();
  v3 = (v2 & 0x200) != 0;
  while( _interlockedbittestandset64((volatile signed __int32 *)Lock, 0i64) )
  {
    if( v3 )
      _enable();
    do
      KeYieldProcessorEx(&SpinCount);
    while( *Lock );
    _disable();
  }
  return v3;
}

Referenced by: