Int 10 Fn 1007  - Video - Get Individual Palette Register (vga,ultravisio  [V]

   AX = 1007h
   BL = palette or attribute (undoc) register number (see AX=1000h)

Return: BH = palette or attribute register value

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 BH to FFh on entry.

See Also: AX=1000h,AX=1009h