Int 10 Fn 1009  - Video - Read All Palette Registers And Overscan Registe  [V]

   AX = 1009h
   ES:DX -> 17-byte buffer (see AX=1002h)

Note:  UltraVision v2+ supports this function even on color EGA systems in
     video modes 00h-03h, 10h, and 12h; direct programming of the palette
     registers will cause incorrect results because the EGA registers are
     write-only.  To guard against older versions or unsupported video
     modes, programs which expect to use this function on EGA systems
     should set the ES:DX buffer to FFh before calling.

See Also: AX=1002h,AX=1007h,AX=CD02h