srec_formatted_binary - Formatted Binary file format

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-VERSionLicense' command. This is free software and you are welcome to redistribute it under certain conditions; for details use the 'srec_cat-VERSionLicense' command.

This is the PDP‐11 paper tape format, described in the DEC‐11‐GGPC‐D PDP‐11 "Paper Tape Software Programming Handbook" 1972. The file starts with a character sequence which appears as an arrow when punched on 8‐hole paper tape. 0x08, 0x1C, 0x2A, 0x49, 0x08, 0x00 Then follows a byte count, encoded big‐endian in the low 4 bits of the next 4 bytes. The high bits should be zero. Then follows a 0xFF byte. The data follows, as many bytes as specified in the header. The trailer consists of the following bytes: 0x00, 0x00, and then a 2‐byte checksum (big‐endian). The alternate header sequence 0x08, 0x1C, 0x3E, 0x6B, 0x08, 0x00 is followed by an 8‐nibble big‐endian byte count. SizeMultiplier In general, binary data will expand in sized very little when represented with this format.

Here is a hex dump of a formatted binary file containing the data "Hello, World!". 0000: 08 1C 2A 49 08 00 00 00 ..*I.... 0008: 00 0E FF 48 65 6C 6C 6F ...Hello 0010: 2C 20 57 6F 72 6C 64 21 , World! 0018: 0A 00 00 04 73 ....s

Scott Finneran E‐Mail: scottfinneran@yahoo.com.au Peter Miller E‐Mail: pmiller@opensource.org.au Reference Manual SRecord srec_formatted_binary(5)

srec_formatted_binary - Formatted Binary file format