16 lines
350 B
Elixir
16 lines
350 B
Elixir
defmodule Gray_code do
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use Bitwise
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def encode(n), do: bxor(n, bsr(n,1))
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def decode(g), do: decode(g,0)
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def decode(0,n), do: n
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def decode(g,n), do: decode(bsr(g,1), bxor(g,n))
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end
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Enum.each(0..31, fn(n) ->
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g = Gray_code.encode(n)
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d = Gray_code.decode(g)
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:io.fwrite("~2B : ~5.2.0B : ~5.2.0B : ~5.2.0B : ~2B~n", [n, n, g, d, d])
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end)
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