qa.hlp (Table of Contents; Topic list)
OR
   Summary  Detail  Example  Key to Flags
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Inclusive OR                                     Flags:  O D I T S Z A P C
                                                         ═════════════════
                                                         0       ± ± ? ± 0
Syntax:  OR dest,src
 
  Performs a bitwise logical OR on the source and destination operands
  and stores the result to the destination operand. For each bit position
  in the operands, if either or both bits are set, the corresponding bit
  of the result it set. Otherwise, the corresponding bit of the result is
  cleared.
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