Int 10 Fn BF0C  - Video - Compaq Extensions - Set Dac 6-bit Mode           [b]

   AX = BF0Ch

Return: CF clear
Desc:  specify that video DAC registers use only six bits of color info

Note:  supported by at least the QVision board and the SystemPro XL ROM BIOS

See Also: AX=BF0Dh,AX=BF0Eh