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  Title:    Load or Store Control Word
 
  Syntax:   FLDCW src
            FSTCW dest
            FNSTCW dest
 
  See also: FSTSW, FSTENV, FSAVE, Control Word
 
  Description:
 
     FLDCW loads the specified word into the coprocessor control word.
     FSTCW stores the control word to a specified 16-bit memory
     operand.
 
     FSTCW has wait and no-wait versions. The wait version (FSTCW)
     checks for unmasked numeric errors; the no-wait version (FNSTCW)
     does not. When the .8087 directive is used, the assembler puts the
     WAIT instruction before the wait version and the NOP instruction
     before the no-wait version.
                                    -♦-