private CodeUnit getCodeUnitContaining(Address addr) {
		Listing listing = program.getListing();
		CodeUnit cu = listing.getCodeUnitAt(addr);
		if (cu == null) {
			cu = listing.getCodeUnitContaining(addr);
			if (cu instanceof Data) {
				Data data = (Data) cu;
				return data.getPrimitiveAt((int) addr.subtract(data.getMinAddress()));
			}
		}
		return cu;
	}
Get the visual representation as HTML for the code unit at or containing the 
address associated with this cell's row

@return the display string
Ghidra/Features/Base/src/main/java/ghidra/util/table/field/CodeUnitTableCellData.java