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srec_fairchild(5)						File Formats Manual						 srec_fairchild(5)

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 equiva- lents 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 1.58 Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 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/ Reference Manual SRecord srec_fairchild(5)

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srec_stewie(5)							File Formats Manual						    srec_stewie(5)

NAME
srec_stewie - Stewie's binary file format DESCRIPTION
If you have a URL for documentation of this format, please let me know. Any resemblance to the Motorola S-Record is superficial, and extends only to the data records. The header records and termination records are completely different. None of the other Motorola S-Records record type are available. The Records All records start with an ASCII capital S character, value 0x53, followed by a type specifier byte. All records consist of binary bytes. The Header Record Each file starts with a fixed four byte header record. +-----+------+------+------+ |0x53 | 0x30 | 0x30 | 0x33 | +-----+------+------+------+ The Data Records Each data record consists of 5 fields. These are the type field, length field, address field, data field, and the checksum. The lines always start with a capital S character. +-----+------+---------------+---------+------+----------+ |0x53 | Type | Record Length | Address | Data | Checksum | +-----+------+---------------+---------+------+----------+ Type The type field is a one byte field that specifies whether the record has a two-byte address field (0x31), a three-byte address field (0x32) or a four-byte address field (0x33). The address is big-endian. Record Length The record length field is a one byte field that specifies the number of bytes in the record following this byte. Address This is a 2-, 3- or 4-byte address that specifies where the data in the record is to be loaded into memory. Data The data field contains the executable code, memory-loadable data or descriptive information to be transferred. Checksum The checksum is a one byte field that represents the least significant byte of the one's complement of the sum of the values repre- sented by the bytes making up the record's length, address, and data fields. The Termination Record Each file ends with a fixed two byte termination record. +-----+------+ |0x53 | 0x38 | +-----+------+ Size Multiplier In general, binary data will expand in sized by approximately 1.2 times when represented with this format. EXAMPLE
Here is an hex-dump example file. It contains the data "Hello, World[rq] to be loaded at address 0. 0000: 53 30 30 33 53 31 10 00 00 48 65 6C 6C 6F 2C 20 S003S1...Hello, 0010: 57 6F 72 6C 64 0A 9D 53 38 World..S8 COPYRIGHT
srec_cat version 1.58 Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 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/ Reference Manual SRecord srec_stewie(5)
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