User Interface Services

 

Function Number	Function
0xF0	Self Test
0xFE	Shutdown module

 

User Interface Messages

0xF0    Self Test

This service test the user interface services data structures.

Input
  none

Output
  EBX    address of error string (unless no error)
  AL     status (0 means ok, no error string)
 

0xFE    Shutdown module 

This de-allocates all resources used. Interrupts must be disabled before removing the user interface services, and they should not be enabled again until another user interface services has taken it's place. The code selector returned by this service should be de-allocated by the caller.

Input
  none

Output
  bx    Code Selector