Install Device:        AL = 00
  Input:
     CL = Mode Number for device

  Return:
     ES:BX --> Device Status Table (see STATUS structure)

The INSTALL function is intended to inform the driver of the operating
parameters that will be used. The device should not be switched to
graphics mode (see INIT). On input, CL contains the mode in which the
device will operate. (refer to BGI setgraphmode statement)


The return value from the Install Device function is a pointer to a Device
Status Table (described earlier).