Instruction Clock Cycle Calculation

        Some instructions require additional clock cycles due to a "Next
        Instruction Component" identified by a "+m" in the instruction
        clock cycle listings.  This is due to the prefetch queue being
        purge on a control transfers.   Below is the general rule for
        calculating "m":

        88/86 not applicable
        286  "m" is the number of bytes in the next instruction
        386  "m" is the number of components in the next instruction
                (the instruction coding (each byte), plus the data and
                the displacement are all considered components)

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