How can I protect hex code against copying?

Question

I want to protect my hex code to just run one electronic circuit. So I want protect my hexadecimal code against copying. How can I do this ?

Answer 1

If you want your code to run just once, you should destroy your own code when it ran one circuit.

WHEN finished
  copy ptr loc_memory_start, 0000 
  ;comment: fill in zeros at the start of program.
END