Porting Codes

Porting Codes - Basic Tutorial

This will not work all the time. This is an extremely basic method of porting codes.

~~~~~~~~~~~~~~Chapter 1 - What you will need~~~~~~~~~~~~

1. A code that you want to port

2. A RAM Dump from both regions - The region the code is in, and the region you want to port it to.

3. Basic knowledge of how a hex editor works and how to use a hex calculator.



~~~~~~~~~~~~~~Chapter 2 - Finding Address~~~~~~~~~~~~~~~

If code is 1 line, that is your address.

If code has D3000000 XXXXXXXX in it, add XXXXXXXX to the following line. That is your address.

If code has BXXXXXXXX, go to offset 0XXXXXXX and take the value. Add that value to the following line. The new offset is your address.



~~~~~~~~~~~~~~~Chapter 3 - Porting~~~~~~~~~~~~~~~~~~~~~~

1. Go to the address that you found in Chapter 2 in the corresponding regions RAM dump (Using CTRL+G) (If the code is EUR, you will need an EUR RAM Dump). Look for a "landmark" such as English text. It makes it a lot easier if your landmark comes before the codes address and not after it. Random hex digits are not a landmark. This could take quite a while to find. The longer the word (or string of words), the easier it will be to port in the future!

2. Once you've found your landmark, hit CTRL+E to get the address of it.

3. In a hex calculator, do {original address} minus {landmark}. This number will be referred to as the "difference."

4. Open up a RAM dump of the region that you want to port it to (If the original code is EUR and you want to port it to USA, you will need a USA RAM Dump).

5. Search for the landmark's hex values (The text that you found in Step 1 - NOT the "difference"). Make sure to delete spaces between the bytes.

6. Make sure it is in a logical memory region. You will never start out with a 14XXXXXX code and end up with a 16XXXXXX code. It will always be in the same memory region.

7. If the surroundings look similiar to the original RAM dump, that is a good sign you found the right landmark. If not, press F3 to see if there is a landmark that better fits. If there is not a better landmark, or no more results, then you got the right one.

8. Once you've found the corresponding landmark, hit CTRL+E to get the address of it.

9. In a hex calculator, do {new, corresponding landmark address} plus {difference}.

10. This is the ported address! Next, you will need to reverse the steps you did in Chapter 2. Chapter 4 will explain this.

~~~~~~~~~~~~~~Chapter 4 - Undoing Changes~~~~~~~~~~~~~~~

If code was originally 1 line, then the new address found in Chapter 3 (Step 10) is your new, ported code.

If code originally had D3000000 XXXXXXXX in it, subtract XXXXXXXX from the new address found in Chapter 3 (Step 10). Put this in the same spot as the original address. It should be pretty easy, use your brain. Don't delete lines.

If code has BXXXXXXXX, then wait for this tutorial to get completed.