Assembly Language Help (alang.hlp) (Table of Contents; Topic list)
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FXTRACT Instruction
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  Title:    Extract Exponent and Significand
 
  Syntax:   FXTRACT
 
  Description:
 
     Extracts the exponent and significand (mantissa) fields of ST. The
     exponent replaces the value in ST, and then the significand is
     pushed onto the stack.
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