ROM Hack Adding Action Replay codes to a rom itself

[SamuraiOndo]

Hi, I was wondering if it was possible to add an Action Replay code to a rom itself.

 

[FAST6191]

Yeah.

DSATM will attempt to do it for you.
https://gbatemp.net/threads/ds-auto-trainer-maker-dsatm.80540/
If the download there is broken then https://gbatemp.net/download/dsatm.31528/

The author of said same prior to that made a nice guide if you do want to go manual here
https://gbatemp.net/threads/crackers-ds-trainer-maker-tutorial.44410/

I also covered how to hardcode a cheat in
https://gbatemp.net/threads/gbatemp-rom-hacking-documentation-project-new-2016-edition-out.73394/
It was for the GBA but it is similar enough to what you would be doing on the DS, and actually is similar enough to most systems out there.

 

[SamuraiOndo]

Thank you! I need to get on my computer, and then I will do it. Thanks so much!!

 

[SamuraiOndo]

Could you please help me find where the hardcode for the cheat is on your guide?

 

[FAST6191]

5.3.4 covers the basic making of the cheat.
5.3.6 covers the part about editing the instruction.


For editing in the instruction you have two main choices.
1) Replicate what the cheat devices will be doing. This will typically involve finding something that runs all the time and adding a little extra to it.
2) Do like that and edit the instruction to prevent it from doing what it originally did.

 

[SamuraiOndo]

Thanks again!

 

[chief18]

Sorry for "reopening this" but using DSATM whenever I load the usrcheat.dat with the cheat codes i want to hard code into the ROM the program crashes.
What should I do?

 

[nazoparadox]

Sorry for "reopening this" but using DSATM whenever I load the usrcheat.dat with the cheat codes i want to hard code into the ROM the program crashes.
What should I do?

right click the program, change the compatibility mode to windows xp (service pack 3). this solved my problem