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  Title:    Add
 
  Syntax:   FADD [dest,src]
            FADDP dest,ST
            FADD src
            FIADD src
 
  See also: FSUB, FSUBR
 
  Description:
 
     Adds the source to the destination and returns the sum in the
     destination. If two register operands are specified, one must be
     ST. If a memory operand is specified, the sum replaces the value
     in ST. Memory operands can be 32- or 64-bit real numbers or 16-
     or 32-bit integers.
 
     If no operand is specified, ST is added to ST(1) and the stack is
     popped; the sum is returned in ST. For FADDP, the source must be
     ST; the sum is returned in the destination and ST is popped.
                                    -♦-