This repository contains an interpreter and a compiler for an extended brainfuck interpreter that also supports file I/O.
The interpreter can be found in the interpreter directory,
and the compiler can be found in the ccompiler directory.
As a recap, the standard brainfuck language follows this model (as referenced by Wikipedia): There is a program and an instruction pointer. There is also a 1D array of at least 30000 x 1 byte cells each initialized to the value 0. This array is accessed by a movable data pointer and two streams of bytes for input and output with ASCII character encoding.
the standard 8 language commands are as follows:
>Increments the data pointer to point to the next cell to the right<Decrements the data pointer to point to the next cell to the left+Increments the byte at the data pointer by 1-Decrements the byte at the data pointer by 1.Outputs the byte at the data pointer,Accepts one byte of input, storing its value in the byte at the data pointer[If the byte at the data pointer is 0, then instead of moving the instruction pointer to the next command, it jumps forward to the command right after the matching]command.]If the byte at the data pointer is NOT 0, then instead of moving the instruction pointer to the next command, it jumps backward to the command right after the matching[command.
Now for the new file IO operations:
To open a file, we specify a path, length of path string (the path string must be less than 256 characters), and a byte for read/write info.
"Opens a file - only one file open at a time.'Closes the currently opened file:Writes a byte to the file.;Reads a byte from the file, storing its value in the byte at the data pointer.
For example, with the following data cells:
v
| 9 | 48 | 65 | 6C | 6C | 6F | 2E | 74 | 78 | 74 |
^
calling " would open a file called Hello.txt - the data pointer
points at the length of the string.