This chapter describes the simple binary output module which can be selected with the @option{-Fvobj} option. @section Legal This module is written in 2002-2014 by Volker Barthelmann and is covered by the vasm copyright without modifications. @section Additional options for this module None. @section General This output module outputs the @code{vobj} object format, a simple portable proprietary object file format of @code{vasm}. As this format is not yet fixed, it is not described here. @section Restrictions None. @section Known Problems Some known problems of this module at the moment: @itemize @minus @item None. @end itemize @section Error Messages This module has the following error messages: @itemize @minus @item 3010: section <%s>: alignment padding (%lu) not a multiple of %lu at 0x%llx @end itemize