Function get_next_selector_increment_value : Word;
Returns the selector increment value when allocating multiple subsequent descriptors via allocate_ldt_descriptors .
Parameters: none
Return value: Selector increment value
Notes: Because allocate_ldt_descriptors only returns the selector for the first descriptor and so the value returned by this function can be used to calculate the selectors for subsequent descriptors in the array.
Check int31error variable
allocate_ldt_descriptors, free_ldt_descriptor