Assembly Language Help (alang.hlp) (Table of Contents; Topic list)
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LTR/STR Instructions
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  Title:    Load or Store Task Register           Flags: O D I T S Z A P C
            80286-80486 Only                             ═════════════════
                                                              -none-
  Syntax:   LTR src
            STR dest
 
  See also: .286P
 
  Description:
 
     LTR loads a value from the specified operand to the current task
     register. STR stores the current task register to the specified
     operand.
 
     LTR is available only in privileged mode. See Intel documentation
     for details on task registers and other protected-mode concepts.
                                    -♦-