NAME

       srec_fairchild - Fairchild Fairbug file format

DESCRIPTION

       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.

EXAMPLE

       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.
              S1000
              X48656C6C6F2C2057C
              X6F726C64210AFFFF3
              *

COPYRIGHT

       srec_cat version 1.64
       Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,  2011,  2012,
       2013, 2014 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.

MAINTAINER

       Scott Finneran   E‐Mail:   scottfinneran@yahoo.com.au
       Peter Miller     E‐Mail:   pmiller@opensource.org.au

Reference Manual                                     SRecord                                   srec_fairchild(5)