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RUM is a dialect of brainfuck written and maintained by User:irskep with a few features added for convenience. RUM stands for "bRainfUck iMproved." It is in the public domain and is available on Github.

Extra Features


RUM supports pbrain-like procedures.


Precede commands with numbers to repeat them that many times. The following example sets the current cell to 32:


Multiple procedure calls are supported with repetitions.


Strings in double quotes will be put into the standard input queue in front of any existing input and null-terminated.


"Hello, world!",[.,]


RUM's "debugger," RumBottle, supports stepping through a program through the use of breakpoints. Mark them with an exclamation point.


RUM comes with RumBottle, a Python script that shows the tape and program position as the program is executed.

External resources