Converting Base-2 Binary Numbers For both parsing and unparsing, the bit string that represents the content region for a base-2 binary number is converted to/from an Infoset value by a calculation that involves the length and the dfdl:byteOrder property. For unparsing, the dfdl:fillByte property can also be involved. 1) Why is the fill byte involved here? We are creating a two's complement value of a particular length. There is no filling going on. 2) Should this now also mention dfdl:bitOrder? Regards Steve Hanson Architect, IBM DFDL Co-Chair, OGF DFDL Working Group IBM SWG, Hursley, UK smh@uk.ibm.com tel:+44-1962-815848 Unless stated otherwise above: IBM United Kingdom Limited - Registered in England and Wales with number 741598. Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU