0:44Eh                   Starting Address of Regen Buffer

 Length: 2 bytes

    This value is the offset from the beginning of the display adapter
    memory. It is usually 0, since the first display page is most often
    used. However, if the display page is changed to 2, this value is set
    equal to twice the value at 0:44Ch to reflect the new display page.
    Thus the value at this location is always a multiple of the word at
    0:44Ch.