Man Linux: Main Page and Category List


       srec_fairchild - Fairchild Fairbug file format


       The Fairchild Fairbug format has 8‐byte records.  A file begins with an
       address record and ends with an end‐of‐file record.

       There are three record types in this file format.

       Address records are of the form

                                     |S | nnnn |
       indicating the address for the+following+data records.

       Data records are of the form

                             |X | ffffffffffffffff | c |
       Each data record begins-with-an-X-and-always+-contains  8  data  bytes.
       The  ff  characters  are  hexadecimal byte values (8 bytes).  Each data
       byte is represented by 2 hexadecimal characters.  The c character is  a
       hex  digit  being  the  the  nibble‐sum  of  the data bytes.  A 1‐digit
       hexadecimal checksum  follows  the  data  in  each  data  record.   The
       checksum  represents,  in  hexadecimal  notation, the sum of the binary
       equivalents of the 16 digits in the record; the  half  carry  from  the
       fourth  bit  is  ignored.  The programmer ignores any character (except
       for address characters and the asterisk character, which terminates the
       data  transfer)  between a checksum and the start character of the next
       data record. This space can be used for comments.

       The end‐of‐file record has the form

                                         |* |
       The last record consists of an asterisk only, which indicates  the  end
       of file.

   Size Multiplier
       In general, binary data will expand in sized by approximately 2.4 times
       when represented with this format.


       Here is an example  Fairchild  Fairbug  file.   It  contains  the  data
       “Hello,  World[rq] to be loaded at address 0x1000.  Notice how the last
       record is padded with 0xFF bytes.


       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:
       /\/\*             WWW: