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AAM              ASCII Adjust after Multiply         Flags: O D I T S Z A P C
                                                            ?       * * ? * ?
AAM

          Logic:    AH . AL / 10
                    AL . AL MOD 10

    This instruction corrects the result of a previous multiplication of
    two valid unpacked BCD operands. A valid 2-digit unpacked BCD number
    is taken from AX, the adjustment is performed, and the result is
    returned to AX. The high-order nibbles of the operands that were
    multiplied must have been 0 for this instruction to produce a correct
    result.

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   Operands                  Clocks   Transfers  Bytes   Example
   no operands                 83         -        1     AAM
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       Note:          Unpacked BCD stores one digit per byte; AH contains
                      the most-significant digit and AL the least-
                      significant digit.