DIV - Divide

        Usage:  DIV     src
        Modifies flags: (AF,CF,OF,PF,SF,ZF undefined)

        Unsigned binary division of accumulator by source.  If the source
        divisor is a byte value then AX is divided by src and the quotient
        is placed in AL and the remainder in AH.  If source operand is a word
        value, then DX:AX is divided by src and the quotient is stored in AX
        and the remainder in DX.

                                 Clocks                 Size
        Operands         808x  286   386   486          Bytes

        reg8             80-90  14    14    16            2
        reg16           144-162 22    22    24            2
        reg32              -    -     38    40            2
        mem8        (86-96)+EA  17    17    16           2-4
        mem16     (150-168)+EA  25    25    24           2-4  (W88=158-176+EA)
        mem32              -    -     41    40           2-4


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