On Wednesday, March 11, 2009 at 10:49, Christian Corti wrote:
  An F-series without FPP (floating-point processor)
acts like an E-series. 
Except that the floating point instructions won't work.  Nor will some of
the double-integer instructions (e.g., multiply and divide), as they use
the FPP also.  The F-series base set microcode makes explicit calls on the
FPP that the E-series microcode does not.
                                      -- Dave