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    FPC specialities.

    The %ds and %es selector MUST always contain the same value or some system routines may crash when called. The %fs selector is preloaded with the DOSMEMSELECTOR variable at startup, and it MUST be restored after use, because again FPC relies on this for some functions. Luckily we asm programmers can still use the %gs selector for our own purposes, but for how long ?

    See also

    Name Description
    get_cs Get CS selector.
    get_ds Get DS Selector.
    get_ss Return SS selector.
    allocate_ldt_descriptors Allocate a number of descriptors.
    free_ldt_descriptor Free a descriptor.
    segment_to_descriptor Map segment address to descriptor.
    get_next_selector_increment_value Return selector increment value.
    get_segment_base_address Return base address from descriptor table.
    set_segment_base_address Set descriptor's base address.
    set_segment_limit Set descriptor limit.
    create_code_segment_alias_descriptor Create new descriptor from existing descriptor.