Execute Brain****/Erlang: Difference between revisions
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{{implementation|Brainf***}}{{collection|RCBF}} |
{{implementation|Brainf***}}{{collection|RCBF}} |
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Implementation of a [[Brainfuck]] interpreter in [[Erlang]]. |
Implementation of a [[Brainfuck]] interpreter in [[Erlang]]. |
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The opcodes also use a binary representation, which allows to jump through the loop structures. Note, however, that finding the end of the loop still requires linear time, which could be improved. |
The opcodes also use a binary representation, which allows to jump through the loop structures. Note, however, that finding the end of the loop still requires linear time, which could be improved. |
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<lang erlang> |
<lang erlang>-module(brainfuck). |
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-module(brainfuck). |
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-export([run/1]). |
-export([run/1]). |
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find_end(Ins, N+1, Pos+1); |
find_end(Ins, N+1, Pos+1); |
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find_end(<<_, Ins/binary>>, N, Pos) -> |
find_end(<<_, Ins/binary>>, N, Pos) -> |
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find_end(Ins, N, Pos+1). |
find_end(Ins, N, Pos+1).</lang> |
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</lang> |
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Example output, the first one being the usual 'Hello World!' program and the second one testing nested loops to increment count to 64 and print the result (should be '@'): |
Example output, the first one being the usual 'Hello World!' program and the second one testing nested loops to increment count to 64 and print the result (should be '@'): |
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