Int 6F Fn 0418  - Hp Vectra Ex-bios - "f_io_ctrl Sf_clr_crtsw" - Set Crt   [b]

   AX = 0418h
   BP = 00AEh (driver ID for V_8041)

Return: AH = status (see #3415)
   BP,DS destroyed
Desc:  clears a flag in the 8041, indicating that the primary display is the
     monochrome adapter

See Also: AH=00h"HP Vectra",AX=040Ch/BP=00AEh,AX=040Eh/BP=00AEh

See Also: AX=0414h/BP=00AEh,AX=0416h/BP=00AEh,AX=041Ah/BP=00AEh