Int 10 Fn 12  - Cirrus Logic Bios V3.02 - Inquire Options                  [V]

   AH = 12h
   BL = 84h

Return: AX = user options word (see #0029)

See Also: AH=12h/BL=89h,AH=12h/BL=8Ah,AH=12h/BL=8Bh,AH=12h/BL=8Ch,AH=12h/BL=8Fh

See Also: AH=12h/BL=90h,AH=12h/BL=9Ah

Bitfields for Cirrus Logic user options word:
Bit(s) Description (Table 0029)
 1,0   centering
   00 vertical centered, 01 from bottom, 10 from top, 11 reserved
 3,2   720-dot fix-up options
   00 OR every 8th and 9th pixel
   01 display MGA mode from left
   10 display MGA mode from right
   11 skip every 9th pixel
 4 ???
 7-5   video mode (001 CGA, 010 MGA, 011 EGA, 100 VGA)
 8 external monitor enabled instead of LCD panel
 9 vertical expand mode enabled
 10    8-bit mode instead of 16-bit mode
 11    normal video rather than reverse video (for LCD)
 12    attribute automap rather than attribute emulation
 13    bold mode disabled (default)
 14    fast bandwidth
 15    ???