Alright, here is my problem. Again, I apologize, I am positive this has been brought up before. I play on a modded GameCube using Picoboot and Swiss. I have emgba.dol on the root of my sd card. The app works fine, games run fantastic, but my issue is saving. Games will state saves were successful, and a .sav file is even created, but after opening the game again after the system is turned off, the save files aren't there. So, I loaded mgba on my pc, played for 10 minutes, created a save file, moved the save to my gamecube SD card, and booted it up. Cool, the save appears when I open the game. I play for a bit, save, and shut off the console. Upon reopening the game later, the save file is there, but no new data was written to it during my session on the console. It is still where I stopped on pc. I am assuming the gamecube emgba isn't writing new data, and can only read data. That is just my guess. I don't know what to do, and I need help. I am sorry if this was obvious or is a frequent question.

Hi, guys! I have a question, maybe one of you could be the one who will solve my problem 😉
Is it possible to retrieve or read data from the RAM of a GBA while it's still on (through a custom link cable or other hardware, for example, possibly cartswapping)? Example: I fled from a Pokémon, but I want to recover or read its 100-byte data still present in RAM (let's assume I have not initiated a new Pokémon battle nor turned off the system). In a few words, can I "RAM watch" my GBA (without turning it off or making a trade, that would wipe out the wild Pokémon data from memory) in the same way you can do it on mGBA? Let me know! A money prize will be awarded for the eventual problem solver 😎.
P.S.: Possible theoretical way to do it (https://youtu.be/yZ3_5nhSzi0?si=Sho4hEwvgnVa1p4X)

I'm writing a script meant to run with arbitrary games that can read data and send it over a socket. It doesn't look like there's a way to directly read ROM data for GB games. Only `memory.cart0`. So if the script is asked to return data in bank 4 or whatever it may not be addressable and the data is unknowable. Any chance I'm missing some obscure way to get at the ROM? I'm much less familiar with GB/GBC than GBA, so let me know if I'm mistaken about something.

I'm coming from the context of BizHawk which uses Gambatte and does allow access to the entire ROM from lua under the domain they label "ROM".

Like many others apparently, i can't seem to get multiplayer working for playing with Quetzal. I have each file loaded in its own window, and my keyboard can control whichever window is active, but the Xbox One controller I have plugged in controls both windows simultaneously.

I've seen a couple threads here and on Reddit about assigning controllers to different instances? But I have zero clue what setting that is. Any help is appreciated, thanks!

ok....after days of wrestling with google by myself.....i finally decided to register to further purse this problem....

Basically

Final Fantasy Tactics Advance (USA) ran on mGBA 0.10.2

trying to start new game but everytime the moment i get a chance to save, i get "save failed"?!

I checked directories, i tried with/without BIOS, i tried with vba-m (save failed again), and some how vba 1.8.0 of from 2006 is working perfect without ever hiccup of ALL 300 missions (I have completed this game before) I also tried 64k, 125k, and 1mB override save type. I tried europe rom, i tried different older versions of mGBA VBA-M and some how retroarch is ok but old cores now.....

the ONLY viable work around so far is LITERALLY reddit telling me to change certain HEX codes to bypass the need to save near the end.....

I just have to play it on mGBA coz its the only emulator with a aspect ratio fix......i cant believe im knee deep is hex code coz i cant save and all just so i can play full screen without stretching the game......

please.....anyone have this issue if you could share some light on this....

Hi. I'm playing with the following settings enabled:

Lock aspect ratio
Force integer scaling
Interframe bleeding

High resolution scale: 8x (1920 x 1080)
Video renderer: OpenGL

I'm running on a 1920 by 1080 monitor.

Playing upscaled is cool because it makes certain effects pop in more detail, however I'm bothered by a nuanced detail.

The following link is a screenshot to the game I'm playing:

https://imgur.com/a/Az0g72r

If you notice the health bar on the left, you can see that certain lines of pixels will appear slightly bigger than others. It is also noticeable on the character's mouth during his idle animation.

I'm wondering if there is a way to run GBA games at this resolution without the unevenness of the pixels? The answer may be obvious, but I just wanted to ask in case someone here knew just to be sure 😅

i recently changed distros from Ubuntu 22.04 to Pop! OS.
I was previously using the spefic build for Ubuntu from the downloads section of the webpage and that was running fine. I didn't see one for Pop! OS so I installed the Flatpak version from the Pop! shop, and it is running at 49 FPS with distorted sound.

Is there a version specific build for Pop! OS? Should I use the one for the equivalent Ubuntu? Are there tweaks I can do to improve performance?

Long story short, I've been using the 32bit version of mGBA for a while, and am in the process of being convinced to switch to the 64bit version, as I do have a 64bit system... and it turns out, one of the games I'm using it for has weird bugs when played with a 32bit emulator, and I don't mean just mGBA.

However, one detail about the 32bit version has come to my attention that has me utterly confused, baffled, and a little annoyed.

Where are the .sav files? They're not where they should be. Are they hidden? the 32bit emulator can find and use them to load my saves no problem, but the file simply isn't there. Heck, even other 32bit emulators can find and use the save file. But there's no save file. Which means there's no save file for a 64bit emulator to read and use. The 64bit emulator creates a .sav file that is visible and right there where it should be. It didn't overwrite whatever arcane science the 32bit emulator is using, as switching between 32 and 64bit emulators, the 32bit emulator finds the old save file just fine, but the 64bit version only uses the visible one.

WHAT SORCERY IS AT PLAY HERE? Is it remotely possible to get the 64bit version to load the 32bit version's save file?

Or are these secrets not meant for mortal minds like mine?

I can't find the pause when inactive option anywhere in the settings menu.
I've used mgba before, and I clearly remember it being there.

As the title says, my keyboard shortcuts are not working. I’m playing Pokémon Ruby. I can walk and press A/B, but I can’t fast forward or take screenshots and stuff like that.
Also, how do I restore keyboard shortcuts to the default? I accidentally changed one and i can’t fix it.