@Override
	public DataType toDataType() throws DuplicateNameException, IOException {
		if (length == 0) {
			return BYTE;
		}

		return new PascalString255DataType();
	}
{@return the length (in bytes) of this data type}
Ghidra/Features/Base/src/main/java/ghidra/app/util/bin/format/omf/OmfString.java