Homebrew Suggestion Is somebody working on savestates?

[PT333]

Title says it all. For poeple who do not know, savestates will give you option to save game at any moment without relying on game's save system. I suppose this feature would be very useful for some games!

 

[SkittleDash]

That would prove to be a massive challenge. Not impossible but the likelihood of it happening won't be soon. Hell, cemu (Wii U emulator) doesn't even have save states yet. If it were that simple, it would've already been done.

 

[DiscostewSM]

So you'd like to be saving GBs worth of data for one save state, taking minutes at a time saving/loading from/to RAM?

 

[PT333]

So you'd like to be saving GBs worth of data for one save state, taking minutes at a time saving/loading from/to RAM?

Yup.

 

[stitchxd]

That would prove to be a massive challenge. Not impossible but the likelihood of it happening won't be soon. Hell, cemu (Wii U emulator) doesn't even have save states yet. If it were that simple, it would've already been done.

In theory you would only need to copy the contents of RAM to a file, and then restore as needed. (Though as you said, not that simple, though the idea is nice!)

 

[ghjfdtg]

It's not just about saving/restoring RAM but you have to save/restore the entire hardware state which is not doable unless it's an emulator. In the old days it was doable with more or less good results (more often than not you get glitchy results). Now hardware has evolved and is much more complex.

 

[SkittleDash]

In theory you would only need to copy the contents of RAM to a file, and then restore as needed. (Though as you said, not that simple, though the idea is nice!)

Though as DiscostewSM said, it would probably take GBs worth to even save one. People may think they can deal with it, but soon, it will start getting annoying. Imagine you're playing a game like Dark Souls and you save state just before a boss. You don't want to go all the way back to the previous bonfire. By the time you reload that save state, you probably could make it back there before a save state loads. After all, it may have GBs worth of data to transfer into the RAM.

 

[stitchxd]

It's not just about saving/restoring RAM but you have to save/restore the entire hardware state which is not doable unless it's an emulator. In the old days it was doable with more or less good results (more often than not you get glitchy results). Now hardware has evolved and is much more complex.

I can save state using RTS on the original Nintendo DS - I am sure there is something that can be done at some point. Though to be honest, I don't think it's worth it.

 

[hippy dave]

Difficult, definitely. I guess a sysmodule would be able to freeze the game using interrupts, and dumping game ram should be straightforward enough - tho as pointed out, slow af - but whether you'd be able to save and restore the rest of the system state accurately enough I don't know.

 

[Garou]

I can save state using RTS on the original Nintendo DS - I am sure there is something that can be done at some point. Though to be honest, I don't think it's worth it.

DS RAM is only 4MB right? Switch has 4GB of RAM, so it's a huge difference

 

[ghjfdtg]

If you try restoring only the game's process you will quickly find out this will not work. Just one reboot and the memory layout is different + all of the handles the game acquired are invalid. It's not doable in any reliable way.

 

[Deleted User]

I guess that must be handled by Sysmod or CFW and I guess atmosphere is protecting this "malicious" code so we need reinx and Yea nobody using it so won't be able soon

 

[Jc7v71182]

Can someone please do this. I'll pay you hundreds of dollars to get save states added to my DQ XI switch game.

 

[RyanTheArchivist]

Title says it all. For poeple who do not know, savestates will give you option to save game at any moment without relying on game's save system. I suppose this feature would be very useful for some games!

While technically possible saving/loading would be multiple minutes of waiting