bfloader

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Demo (x86 VM):

Insert a "Hello World!" program.

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.

Limitations:

• Program length is limited to 21 lines of 80 columns each (1680 characters).
• Each cell is 1 byte long. (256 different values, wrapping).
• Program memory space starts at 0xF000. It is possible to overwrite memory segments that shouldn't be overwritten.
• Program's output is limited to 1 line of 80 columns (80 characters).
• The editor isn't very advanced.

Credits:

x86 JavaScript VM from v86 (by @copy).

bfloader (Brainfuck IDE and interpreter that fits entirely in a boot sector (512 bytes)) by me.