License: GPL Authors: A. Horn, S. Pal Description: 32-bit BF compiler written in C Installation: make install About: bfc is a compiler for a Turing-complete language with the acronym BF. The compiler is written in C. It compiles BF source code into ELF machine code for GNU/Linux running on x86-32 Intel or AMD microprocessors. It generates assembly code in the Intel format and then uses GNU as and GNU ld programs to assemble and link it to generate the ELF file. Acknowledgement: An earlier 8-bit version of this compiler that produces the assembly code in the AT&T format can be found on S. Pal's website: [http://susam.in/bfc/]. BF commands: > increment the data pointer (to point to the next cell to the right). < decrement the data pointer (to point to the next cell to the left). + increment (increase by one) the byte at the data pointer. - decrement (decrease by one) the byte at the data pointer. . output the value of the byte at the data pointer. , accept one byte of input, storing its value in the byte at the data pointer. [ if the byte at the data pointer is zero, then instead of moving the instruction pointer forward to the next command, jump it forward to the command after the matching ] command*. ] if the byte at the data pointer is nonzero, then instead of moving the instruction pointer forward to the next command, jump it back to the command after the matching [ command*. Example: +++++ +++++ // initialize counter (cell #0) to 10 [ // use loop to set the next four cells to 70/100/30/10 > +++++ ++ // add 7 to cell #1 > +++++ +++++ // add 10 to cell #2 > +++ // add 3 to cell #3 > + // add 1 to cell #4 <<<< - // decrement counter (cell #0) ] // > ++ . // print 'H' > + . // print 'e' +++++ ++ . // print 'l' . // print 'l' +++ . // print 'o' > ++ . // print ' ' << +++++ +++++ +++++ . // print 'W' > . // print 'o' +++ . // print 'r' ----- - . // print 'l' ----- --- . // print 'd' > + . // print '!' > . // print '\n'