@6:24 Actually POKEFINDER was a clever way to hack games. It searches through the entire memory for locations where parameters of the game, like the number of lives, are stored. This works by freezing the game several times when different lives are remaining and You give this changed number to the program every time. The cartridge builds a list of all memory locations which stored this variable and then filters entries from it while game progresses. If you try several times the candidates are cut and finally you are likely to hit the correct one. At this point, knowing the location, You are able to force infinite lives to the game by altering the machine code instruction that touches it. The same technique is used to find other parameters of the game like energy, ammo, points etc. and alter these to our willing.

Takes me back, very fond memories of C64. The AR cartridge was hugely useful but, in context to what you're doing here, you should use the 'findpoke' to try finding your own infinite lives etc pokes! As a programmer myself, this was even more useful for disassembling the code!

Excellent Action Replay MKIV Overview! I liked the relaxing background music and the website pages you browsed, read the text there while listening to your overview, paused it for reading a few times. AR MKIV is a really comprehensive monitor program. Liked the Fanzine magazine too.

Just the explanation i have been searching. Thanks mate!

Datal were big back in the day in the UK They transformed the c64 You could send your old one in for an upgrade cheap and magazines like zzap 64 had lists of action replay codes in them every month If a game cassette was too copied out and would not copy dataset to dataset you could stop the game using the cartridge to get to the flashing cursor then type save making a new loud tape On the back of this tape head aligning tools became popular too Funny the things you remember Also I think they let you make an image of the game in ram and save to tape or floppy disk Full ram or just the part taken by the game Even stage loaders

nice video, very informative

I remember using an Action Replay on my Commodore Amiga 500. It was great for getting unlimited lives in games.

Fast forward to 2024, and this is basically how the Xbox Series S|X does its "quick resume" feature, which lets you swap to the desktop and run other games or shut the console down, and then later come back to the one you were playing before at the same point. Of course, instead of just 64K of RAM, it has to capture up to 8GB and slam it onto the internal SSD in just a few seconds... but the core concept is the same.

Try Final Cartridge 3. With Final Cartridge 3 you can easilly enable/disable sprite collisions on any game without the hassle of poking.

Hey Dude.... you stole one of my topics for a video lol.... Great demo on how to implement the pokes from the freeze 64 fanzine dude. :D

Thanks..i have lear a lot

Thanks for the video! Is anyone know hot to save in Machine Code Monitor of ccs64? I tried as it written in the documentation (and in some other ways) but didn't work. It worked in vice's MCM only.

Anyone know how to install or configure the Action Replay crt image with VICE x64 in Retroarch?

Got an Action Replay when i was a kid back in the 80s. Cost £35. A lot of money then just for a kid to cheat.

Haha. Barnsley Badger is a lot easier that way!! I've seen the double jump pickup but I haven't actually been able to get it yet. It's pretty tough.

Is there some specific reason why you're using as old version of VICE as 2.2? besides Action Replay cardridge issues?

What's the name of the same device but for zx spectrum and 464