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Vonfuck

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Vonfuck is a brainfuck deriviative by User:TheCatFromGithub in 2026. It is just like brainfuck, but the program is stored in the same memory of the data. Instructions are stored mod 8.

Instruction Value (mod 8)
+ 0
- 1
> 2
< 3
. 4
, 5
[ 6
] 7

So, for example, the start of the data memory with +[.+] would be:

[0,6,4,0,7]

After the first instruction, this would become:

[1,6,4,0,7]

As you can see, the program can be modified as freely as the data.