Brainfuck mode [ This program prints "Hello World!" and a newline to the screen, its length is 106 active command characters [it is not the shortest.] This loop is a "comment loop", it's a simple way of adding a comment to a BF program such that you don't have to worry about any command characters. Any ".", ",", "+", "-", "<" and ">" characters are simply ignored, the "[" and "]" characters just have to be balanced. ] +++++ +++ 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 <<<<- 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 [<] Move back to the first zero cell you find; this will be Cell #1 which was cleared by the previous loop <- 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 <-. Subtract 1 from Cell #4 for 87 to give a 'W' <. 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 xxxxxxxxxx 1[ This program prints "Hello World!" and a newline to the screen, its2 length is 106 active command characters [it is not the shortest.]34 This loop is a "comment loop", it's a simple way of adding a comment5 to a BF program such that you don't have to worry about any command6 characters. Any ".", ",", "+", "-", "<" and ">" characters are simply7 ignored, the "[" and "]" characters just have to be balanced.8]9+++++ +++ Set Cell #0 to 810[11 >++++ Add 4 to Cell #1; this will always set Cell #1 to 412 [ as the cell will be cleared by the loop13 >++ Add 2 to Cell #214 >+++ Add 3 to Cell #315 >+++ Add 3 to Cell #416 >+ Add 1 to Cell #517 <<<<- Decrement the loop counter in Cell #118 ] Loop till Cell #1 is zero; number of iterations is 419 >+ Add 1 to Cell #220 >+ Add 1 to Cell #321 >- Subtract 1 from Cell #422 >>+ Add 1 to Cell #623 [<] Move back to the first zero cell you find; this will24 be Cell #1 which was cleared by the previous loop25 <- Decrement the loop Counter in Cell #026] Loop till Cell #0 is zero; number of iterations is 82728The result of this is:29Cell No : 0 1 2 3 4 5 630Contents: 0 0 72 104 88 32 831Pointer : ^3233>>. Cell #2 has value 72 which is 'H'34>---. Subtract 3 from Cell #3 to get 101 which is 'e'35+++++++..+++. Likewise for 'llo' from Cell #336>>. Cell #5 is 32 for the space37<-. Subtract 1 from Cell #4 for 87 to give a 'W'38<. Cell #3 was set to 'o' from the end of 'Hello'39+++.------.--------. Cell #3 for 'rl' and 'd'40>>+. Add 1 to Cell #5 gives us an exclamation point41>++. And finally a newline from Cell #642 A mode for Brainfuck MIME types defined: text/x-brainfuck
