Assembly Language Help (alang.hlp) (Table of Contents; Topic list)
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  Syntax:   expression1[expression2]
 
  See also: Plus (+), Dot Operator (.)
 
  Description:
 
     The brackets (also called the "index operator") return the sum of
     <expression1> and <expression2>. If <expression2> is a register,
     the brackets indicate an indirect memory operand rather than a
     register-direct operand.
 
     In the syntax above, the brackets are literal and must be
     included. The expression outside the brackets is optional. You
     cannot add two direct memory operands.
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