ADC              Add with Carry                      Flags: O D I T S Z A P C
                                                            *       * * * * *
ADC destination,source

          Logic:    destination . destination + source + CF

    ADC adds the operands, adds 1 if the Carry Flag is set, and places the
    resulting sum in destination. Both operands may be bytes or words, and
    both may be signed or unsigned binary numbers.

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   Operands                  Clocks   Transfers  Bytes   Example
                           byte(word)
   register, register          3          -        2     ADC BX,SI
   register, immediate         4          -       3-4    ADC CX,128
   accumulator, immediate      4          -       2-3    ADC AL,10
   register, memory        9(13) + EA     1       2-4    ADC DX,RESULT
   memory, register       16(24) + EA     2       2-4    ADC BETA,DI
   memory, immediate      17(25) + EA     2       3-6    ADC GAMMA,16h
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       Note:          ADC is useful for adding numbers that are larger
                      than 16 bits, since it adds a carry from a previous
                      operation.