Int 62 Fn 0090  u - Fgdriver V3.03 - "fg_setfunc" - Set Logical Operation  [V]

   AX = 0090h
   BX = operation
       0000h replacement
       0001h AND
       0002h OR
       0003h XOR

Notes: For FGDRIVER v1.10, this function was "FG_QUIET" (see AX=007Fh);
     "FG_SETFUNC" was AX=009Ch
   This function is only available in native EGA/VGA graphics modes
     (0Dh to 12h)

See Also: AX=001Ch,AX=0076h