Add impl for getTopSegmentPointer/getBottomSegmentPointer
Add impl for getTopSegmentPointer/getBottomSegmentPointer

glennhickey/hal,glennhickey/hal,glennhickey/hal,glennhickey/hal,glennhickey/hal,glennhickey/hal,glennhickey/hal,glennhickey/hal