Step backwards - Githubissues

Zomis / Brainduck

Brainfuck Interpreter in Java/Groovy, with a Groovy DSL

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Open Zomis opened 8 years ago

Zomis commented 8 years ago

If at all possible in BF, it would be useful to "step backwards" while debugging so that you can easier find where things go wrong when they go wrong

Zomis commented 8 years ago

For this you'd need to know a couple of things:

, what was the value of the cell before the operation?
if there is a [ or ] before the command, how many times has the loop been performed? Was it ever performed? Should we go backwards to before [ or before ] ?

The other commands are pretty clear how they should be reversed.