NAME
srec_fastload - LSI Logic Fast Load file format
DESCRIPTION
The FastLoad Format uses a compressed ASCII format that permits files
to be downloaded in less than half the time taken for Motorola
S‐records.
The base‐64 encoding used is "A‐Za‐z0−9,.". The data is encoded in
groups of 4 characters (3 bytes, 24 bits).
The character ’/’ is used to introduce a special function. Special
functions are:
Annnnnn Defines an address.
Bnn Define a single byte.
Cnnnn Compare the checksums. The checksum is a simple positive
16‐bit sum, of the data bytes only.
EAA Define the program’s entry point. The address will be the
current address as defined by the A command. (The AA number in
this command is ignored.) This must be the last entry in the
file.
KAA Clear the checksum. (The AA number in this command is
ignored.)
Sname,X Define a symbol. The address of the symbol will be the current
address as defined by the A command.
Znn Clear a number of bytes.
Size Multiplier
In general, binary data will expand in sized by approximately 1.4 times
when represented with this format.
EXAMPLE
Here is an example LSI Logic Fast Load format file. It contains the
data “Hello, World[rq] to be loaded at address 0.
/AAAA
SGVsbG8sIFdvcmxk/BAK/CARS/AAAA/EAA
COPYRIGHT
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.
AUTHOR
Peter Miller E‐Mail: pmiller@opensource.org.au
/\/\* WWW: http://miller.emu.id.au/pmiller/