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Deadfish Language

Tool to interpret the Deadfish, an extremely basic programming language created by Jonathan Todd Skinne, only able to display numbers via only 4 commands.

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Deadfish Language -

Tag(s) : Programming Language

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Deadfish Language

Deadfish Interpreter/Decoder






Deadfish Encoder





See also: Brainfuck

Tool to interpret the Deadfish, an extremely basic programming language created by Jonathan Todd Skinne, only able to display numbers via only 4 commands.

Answers to Questions

How to write in Deadfish?

The deadfish is a programming language simplified to the extreme using a single memory cell (initialized at 0) and 4 functions:

iincrements the memory cell (+1)
ddecrement the memory cell (-1)
ssquare (^2) the value of the memory cell
odisplays the value of the memory cell

Example: To code the number 8, it is possible to write iiiiiiiio (8 increments and output) or iisiiiio (2 increments = 2, then squared = 4, 4 increment = 8 and output) or also iisdo (3 increments = 3, then squared = 9, 1 decrement = 8 and output)

How to decrypt a Deadfish code?

Deadfish is not a cipher but a programming language, so use an interpreter to launch the program and display the result.

Example: iiiso corresponds to 3 increments i (+1+1+1=3), then a squaring s (3^2=9) and display of the result o, ie the number 9

The program can only display numbers, but those can use a given nomenclature (ASCII code, A1Z26, etc.) to get a plain text.

How to recognize a Deadfish code?

Deadfish has only 4 distinct letters, by default i, s, d and o in lower case.

The amount of i and d is generally greater than the amount of o and s.

There are as many o as numbers (or characters) in the output values from the program.

What are the variants of Deadfish?

The XKCD site has proposed a variant with its own letters replacing i with x, s with' k and o with c ( d rest).

Due to its design and level of abstraction, Deadfish resembles the Brainfuck family of languages.

Source code

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Thanks to your feedback and relevant comments, dCode has developped the best Deadfish Language tool, so feel free to write! Thank you !


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