@Override
	public String getAddressString(boolean showBlockName, boolean pad) {
		validate(lock);
		Address cuAddress = address;
		String addressString = cuAddress.toString(false, pad);
		if (showBlockName) {
			MemoryBlock block = program.getMemory().getBlock(cuAddress);
			if (block != null) {
				return block.getName() + ":" + addressString;
			}
		}
		return addressString;
	}
@see ghidra.program.model.listing.CodeUnit#addOperandReference(int,
     ghidra.program.model.address.Address,
     ghidra.program.model.symbol.RefType, SourceType)
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/code/CodeUnitDB.java