CFBF
A simple Brainfuck interpreter
Usage:
make
./bin/cfbf --file="<file>"
-v -- Prints the current running program version
-l -- Prints some useless license information
-h -- Prints the help dialog
-f <file> -- Specify the Brainfuck file to interpret *Required*
This is a simple brainfuck interpreter which runs a 30,000 byte uint8_t
tape. It allows tape values to over/underflow since this is a requirement
for most programs I have seen.
For the loops, a O(n) function calculates the jmp_ptr for each loop command
it encounters and adds this information to the cfbf_command. Then when a
loop is encountered in the main interpretation loop, it can be referenced
without multiple while loop calls.
There are still many bugs which need to be hashed out, and debug support will
help with that in the future. Since I'm no Brainfuck expert, figuring out if
it's the program or the interpreters fault is a constant battle. And using gdb
and valgrind is not the best solution. So better debugging support is obviously
needed.
For anyone who wants to compare interpretation speed, inside the examples
folder is bench.bf
When compiled with the CFLAGS listed in the Makefile and run with the time
command I get the following output:
ZYXWVUTSRQPONMLKJIHGFEDCBA
real 0m1.845s
user 0m1.845s
sys 0m0.000s
There is probably room for improvment I'm sure.