Rust library and cli for encoding and decoding DEC PDP-11 and PDP-10 RADIX-50 word streams.
Add this to your Cargo.toml:
[dependencies]
radix50 = "0.2"use radix50::{pdp10,pdp11};
let pdp10_encoded = pdp10::encode("THIS IS A TEST").unwrap();
let pdp11_encoded = pdp11::encode("THIS IS A TEST").unwrap();
assert_eq!(pdp10_encoded, [3119342419, 2970305215, 3046400000]);
assert_eq!(pdp11_encoded, [32329, 30409, 30401, 805, 31200]);
let pdp10_decoded = pdp10::decode(&[3119342419, 2970305215, 3046400000]);
let pdp11_decoded = pdp11::decode(&[32329, 30409, 30401, 805, 31200]);
assert_eq!(pdp10_decoded, "THIS IS A TEST ");
assert_eq!(pdp11_decoded, "THIS IS A TEST ");The code repo contains a cli utility for encoding or decoding (also
published as the radix50-cli crate).
cargo install radix50-cli
cargo build --release
The output executable will be create in ./target/release/radix50.
$ radix50 encode "ENCODE THIS"
or
$ echo -n "ENCODE THIS" | radix50 encode
will output a list of 16-bit words in decimal:
8563 24165 808 15160
Add the `--format' flag to output something other than decimal:
$ radix50 encode --format=hex "ENCODE THIS"
2173 5e65 328 3b38
$ radix50 encode --format=oct "ENCODE THIS"
20563 57145 1450 35470
$ radix50 encode --format=bin "ENCODE THIS"
10000101110011 101111001100101 1100101000 11101100111000
$ radix50 encode --format=raw "ENCODE THIS" | xxd
00000000: 2173 5e65 0328 3b38 !s^e.(;8
Decoding:
$ radix50 decode 6603 24165 808 15188
DECODE THIS.
$ radix50 decode 0x3b60 0x7a18 0x666a 0x7ff8 0x32e0 0x32f 0x5dc0
IT SUPPORTS HEX TOO
$ radix50 decode 0o4164 0o1133 0o76464
AND OCTAL
$ radix50 decode 0b10001010110101 0b101011110000010 0b11101001110001 0b111010001101000
EVEN BINARY
Decoding from stdin will assume a raw bytestream format:
$ printf "\x79\x18\x70\xbf" | radix50 decode
SO RAW
The default uses PDP-11/VAX encoding. Use the --pdp10 flag to use the
PDP-10 encoding (also used for PDP-6, DECsystem-10, DECSYSTEM-20).
Display the RADIX-50 character set:
$ radix50 charset
Copyright © 2023-2024 David Caldwell david@porkrind.org
MIT Licensed. See LICENSE.md for details.