3ISC
3ISC is a theoretical programming language created by user PhiPhiPHipHi2.0 (Phoenix Irwin). You may be able to tell by the name, it is a computer that uses 3 instructions (or 5 if you use IO)
it is similar to brainfuck in that it uses a long tape with a pointer pointing to a cell. However, cells can only be 1s or 0s.
The instructions are:
>< for moving the pointer. C = toggle the current cell, then after it is toggled, move the pointer back by 1 if the pointed to cell is 0 otherwise move it forward. I = receive input as a 1 or 0 and store it in the cell O = output the current cells value.
so for example, a cat program: "IO"
a program that outputs the opposite of the users input: "ICO"
suppose the original tape is 000000000000000 run the program "I>I>IC" (the user inputs 100) 100000000000000 //after input 01100000000000 //after the first iteration (now it will keep looping etc)
the idea was to make a very minimal Turing machine, I don't think it is Turing complete but perhaps it is.