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After running, type in your Brainfuck program using your keyboard (use arrow keys and Home/End keys to move the cursor) and press F5 to execute it (or Ctrl + F5 to start step by step execution). The output will be shown in between the separator and the blue line.
To stop the execution or to reset after completed execution hold Ctrl + C. While debugging press F5 to continue the program from the current step until the end.
bfloader (Brainfuck IDE and interpreter that fits entirely in a boot sector (512 bytes)) by me.