srec_formatted_binary - Formatted Binary file format

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 startes with a charcter 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.

Size Multiplier

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

version

Copyright Peter Miller;

All rights reserved.

The program comes with ABSOLUTELY NO WARRANTY; for details use the ' -VERSion License' command. This is free software and you are welcome to redistribute it under certain conditions; for details use the ' -VERSion License' command.

tab(;); l r l. Peter Miller;E-Mail:;millerp@canb.auug.org.au /\/\*;WWW:;http://www.canb.auug.org.au/~millerp/