prism/examples/prism-brainfuck.html

38 lines
1.8 KiB
HTML

<h2>Full example</h2>
<pre><code>+++++ +++ Set Cell #0 to 8
[
>++++ Add 4 to Cell #1; this will always set Cell #1 to 4
[ as the cell will be cleared by the loop
>++ Add 2 to Cell #2
>+++ Add 3 to Cell #3
>+++ Add 3 to Cell #4
>+ Add 1 to Cell #5
&lt;&lt;&lt;&lt;- Decrement the loop counter in Cell #1
] Loop till Cell #1 is zero; number of iterations is 4
>+ Add 1 to Cell #2
>+ Add 1 to Cell #3
>- Subtract 1 from Cell #4
>>+ Add 1 to Cell #6
[&lt;] Move back to the first zero cell you find; this will
be Cell #1 which was cleared by the previous loop
&lt;- Decrement the loop Counter in Cell #0
] Loop till Cell #0 is zero; number of iterations is 8
The result of this is:
Cell No : 0 1 2 3 4 5 6
Contents: 0 0 72 104 88 32 8
Pointer : ^
>>. Cell #2 has value 72 which is 'H'
>---. Subtract 3 from Cell #3 to get 101 which is 'e'
+++++++..+++. Likewise for 'llo' from Cell #3
>>. Cell #5 is 32 for the space
&lt;-. Subtract 1 from Cell #4 for 87 to give a 'W'
&lt;. Cell #3 was set to 'o' from the end of 'Hello'
+++.------.--------. Cell #3 for 'rl' and 'd'
>>+. Add 1 to Cell #5 gives us an exclamation point
>++. And finally a newline from Cell #6</code></pre>
<h2>One-line example</h2>
<pre><code>++++++++[>++++[>++>+++>+++>+&lt;&lt;&lt;&lt;-]>+>+>->>+[&lt;]&lt;-]>>.>---.+++++++..+++.>>.&lt;-.&lt;.+++.------.--------.>>+.>++.</code></pre>