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Objective Systems Announces the Release of ASN1C v6.4

(April 20, 2011)
DMN Newswire--2011-4-20--ASN1C is a code generation tool targeted at developers who produce products
based on Abstract Syntax Notation One (ASN.1) and XML standards. It is
capable of generating code in four different languages: C, C++, Java, and C#.

The following new features have been added in this release:

  + Support Added for the Medical Device Encoding Rules (MDER)

    Run-time libraries and code generation logic has been added for
    all supported languages for the Medical Device Encoding Rules
    (MDER) as documented in ISO/IEEE 11073-20601.

  + Support Added for the Octet Encoding Rules (OER)

    C run-time libraries and code generation logic has been
    added for the Octet Encoding Rules (OER) as documented in
    NTCIP 1102:2004.

  + Improved Table Constraint Code Generation in Java and C#

    Additional helper methods are now generated to assist users
    in working with code that uses table constraints.

  + Improved Java/C# error information

    A new feature called element tracking has been introduced.  The
    encode/decode buffer/streams contain a context (Asn1Context) on which
    you can invoke enableElementTracking().  An exception handler can later
    invoke getCurrentElement() on the context to get a name representing the
    element on which the failure occured.  The name will be hierarchical (e.g.
  + Improved Naming of Table Constraint Selector Constants in C/C++

    The format of constants generated in C/C++ for items in
    Information Object Sets referenced in Table Constraints has been
    improved to not use embedded sequential numbers.  See our
    blog post at which describes the changes.

  + Addition of the <alias> configuration item

    Related to the table constraint constant change above, the
    capability to configure shorter code names was added via the
    introduction of the &lt;alias> configuration element.  This
    allows an alternate name to be used in the generated code that is
    different than the ASN.1 name.  The primary reason for adding it
    is because the new selector names were found to be rather long
    in some instances.  This is a way to shorten them.  Note that
    in this release, aliases can only be specified for Module and
    Object Set names (these are the components used in the
    selector constants).

  + Capability to generate HTML representation of ASN.1

    The -html switch was added to provide generation of HTML
    files from the ASN.1 input sources based on what the compiler sees
    and supports.  These files contain hyperlinks to items
    referenced within the specification making it easier to navigate
    between components.

  + Output file selection for C#

    In previous versions of ASN1C, C# output files worked the same as
    Java - one file was generated for each component in an ASN.1
    source file.  This led to the creation of large numbers of files
    in some cases.  In this release, the -csfile command-line option
    has been added which makes it possible to specify a single output
    file or one output file per ASN.1 file being generated.  If the value
    specified with this option is a specific .cs file, all generated
    C# code will be written to that file.  If the value is
    *.cs, one .cs file will be created for each ASN.1 module.

  + Support added for Visual Studio 2010

    Run-time libraries built with Visual Studio 2010 are now included
    in Windows packages.  In addition, the capability to generate a
    Visual Studio 2010 project file has also been added.

For more information on the new release see:

A free evaluation version of the software can be downloaded from:

The release is available as a free upgrade to users with active support.

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