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       srec_dec_binary - DEC Binary (XXDP) file format


       The  DEC  Binary  (XXDP) format was used on the PDP 11 series machines.
       This is a binary format, and is not readable or editable  with  a  text
       editor.  The file consists of records of the form

                  |type | length | address | | checksum |
       The field are-defined-as-follows:---+------------+----------+

       type    Two byte little‐endian value.  Must always be 1.

       length  Two  byte  little‐endian value.  This is the number of bytes in
               the data, plus six.

       address Two byte little‐endian value.  This is the load address of  the

       data    The data is simple raw bytes.  There are (length‐6) of them.

               The  checcksum  is  a  single  byte.  It is the negative of the
               simple summ of all the header and data bytes.

       If the record length is exactly 6 (i.e. no data), this is the execution
       start address record, indicating the transfer address.

       In addition there may be NUL padding characters between records.  It is
       common for records to be  padded  so  that  they  start  on  even  byte
       boundaries.   In  the days of paper tape, it was common for the file to
       have many leading NULs, to generate blank leader on the tape.

   Size Multiplier
       In general, raw binary data will expand in sized by approximately  1.03
       times when represented with this format.


       srec_cat version 1.55
       Copyright  (C)  1998,  1999,  2000, 2001, 2002, 2003, 2004, 2005, 2006,
       2007, 2008, 2009, 2010 Peter Miller

       The srec_cat program comes with ABSOLUTELY NO WARRANTY; for details use
       the ’srec_cat -VERSion License’ command.  This is free software and you
       are welcome to redistribute it under certain  conditions;  for  details
       use the ’srec_cat -VERSion License’ command.


       Peter Miller   E‐Mail:
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