10001 ----- absolute value (math.pvvs)
011xxx - heap functions
11000 ----- memset (heap.pvvs)
+ 11001 ----- memcpy (heap.pvvs)
+ 11010 ----- memrand (heap.pvvs)
+ 11011 ----- memcmp (heap.pvvs)
100xxx - unassigned
101xxx - unassigned
110xxx - conversion functions