FCLEX             Clear Exceptions            Exception Flags: None

FCLEX

       Logic:      clear exception flags

     FCLEX clears all the exception flags, the busy flag, and bit 7 in the
     status word. (Bit 7 is the interrupt request flag in the 8087 and the
     error status flag in the 80287 and 80387.)

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   Operands            Clocks         Bytes           Example
   FCLEX               2-8              3             FCLEX
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        Note:          The no-wait version of FCLEX is FNCLEX.