title: IDA pro asm instructions change
body: <p>I just want to know how I can
  change asm instructions in the IDA-view A:</p>
  
  <ol>
  <li>How to edit instructions(for
  instance: jnz to jmp)?</li>
  <li>How to insert new instructions(call func1,
  call func2 inserted to existing
  code)?</li>
  </ol>
  
  <p>I know how to make dif files, I know how to apply the changes on my DLL, but how can
  I "make the difference"? How can I edit the code in IDA?</p>
  
  <p>I learned how to modify a DLL:</p>
  
  <ol>
  <li>Modify code(how?)</li>
  <li>Generate dif file.</li>
  <li>Apply the code modifications to the DLL with the dif file and a script.</li>
  </ol>