allocate_memory
LV1_CALL(allocate_memory, 4, 2, 0 )
map_ptr = allocate_memory(NULL, prot, mapping, '*', page_size * page_count);
map_ptr = allocate_memory(NULL, prot, mapping, '*', page_size * page_count);
map_ptr = allocate_memory(NULL, prot, mapping, 0, page_size * page_count);
map_ptr = allocate_memory(NULL, prot, mapping, '*', map_size);
map_ptr = allocate_memory(NULL, prot, mapping, '*', map_size);
map_ptr = allocate_memory(NULL, prot, mapping, '*', page_size * page_count);