RaisePending is NOT ignored. but actual behavior is not same as ARM or X64. this differences are hardware restriction.
- Please use / add the following text
Clears all exception status bits in the FPU status word.
By default, RaisePending is True. If RaisePending is True, FWait instruction is called to raise a pending arithmetic exceptions.
This is Intel platform depended function.
This function is obsoleted and not available for NEXTGEN compilers.
Please use System.Math.ClearExceptions instead ClearFPUExceptions