Function get_linear_addr (phys_addr : Longint; size : Longint) : Longint;
Converts a physical address into a linear address.
Parameters:
Return value: Linear address that can be used to access the physical memory.
Notes: It's the applications resposibility to allocate and set up a descriptor for access to the memory. This function shouldn't be used to map real mode addresses.
Check int31error variable.
allocate_ldt_descriptors, set_segment_limit, set_segment_base_address