@Override
	public synchronized Address decodeAddress(long value) {
		return decodeAddress(value, true);
	}
Get base address index
@param addr address
@param normalize if true image base offset will be applied to addr
@param indexOperation see INDEX_CREATE, INDEX_MATCH, INDEX_MATCH_OR_NEXT or INDEX_MATCH_OR_PREVIOUS
@return base address index or Integer.MIN_VALUE if index not found and create is false.  A negative 
value other than Integer.MIN_VALUE indicates a NEXT or PREVIOUS base index = -(return_value)-1.
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/map/AddressMapDB.java