diff options
| -rw-r--r-- | README | 7 | ||||
| -rw-r--r-- | brainfuck.c | 6 |
2 files changed, 9 insertions, 4 deletions
@@ -9,7 +9,7 @@ All data cells are zeros initially Options (defaults are in brackets): -s num stack size (128) -d num data size (30000) - -t trace execution for debug + -t trace execution for debugging Formats for operators '.' and ',' (output and input): -c, -i, -u, -o, -x char, signed int, unsigned int, octal, hexadecimal @@ -28,8 +28,11 @@ Extensions: ; - end of code (useful when reading stdin) # - comment to the end of line (useful when reading files) -Example: +Examples: echo '+++[.-]' | ./brainfuck # count down from 3 to 1 echo ',+++.;5' | ./brainfuck # shows 8 echo ',>,<[->+<]>.;4 5' | ./brainfuck # shows 4+5=9 echo 'c,u.;h' | ./brainfuck # shows 104 (ASCII code for 'h') + echo ', [-[->+<]>];4' | ./brainfuck -t # move data pointer by 4 + echo ',>,< [> [->+<] < -[->+<]> ]; 3 7' | ./brainfuck -t # move '7' by 3 + diff --git a/brainfuck.c b/brainfuck.c index d23ae52..47bc60e 100644 --- a/brainfuck.c +++ b/brainfuck.c @@ -249,7 +249,7 @@ void usage(char * self) printf("Options (defaults are in brackets):\n"); printf(" -s num stack size (%u)\n", stack_size); printf(" -d num data size (%u)\n", data_size); - printf(" -t trace execution for debug\n"); + printf(" -t trace execution for debugging\n"); printf("\n"); printf("Formats for operators '.' and ',' (output and input):\n"); printf(" -c, -i, -u, -o, -x char, signed int, unsigned int, octal, hexadecimal\n"); @@ -268,11 +268,13 @@ void usage(char * self) printf(" ; - end of code (useful when reading stdin)\n"); printf(" # - comment to the end of line (useful when reading files)\n"); printf("\n"); - printf("Example:\n"); + printf("Examples:\n"); printf(" echo '+++[.-]' | %s # count down from 3 to 1\n", self); printf(" echo ',+++.;5' | %s # shows 8\n", self); printf(" echo ',>,<[->+<]>.;4 5' | %s # shows 4+5=9\n", self); printf(" echo 'c,u.;h' | %s # shows 104 (ASCII code for 'h')\n", self); + printf(" echo ', [-[->+<]>];4' | %s -t # move data pointer by 4 \n", self); + printf(" echo ',>,< [> [->+<] < -[->+<]> ]; 3 7' | %s -t # move '7' by 3 \n\n", self); exit(EXIT_SUCCESS); } |