No$GBA doesn't have functional save states. If you can't save state, backup your savefile every so often. Save states are more reliable than the buggy save system of SM64DS. It is recommended going into the emulation settings and changing the GBA Mode to VGA - Poppy Bright.

If it's still slow, you're left with using No$GBA. If the emulator is still slow, go into Frame skip under the Config menu and select an appropriate value. If the emulator is running slow, go into the Emulation settings under the Config menu and check the Use dynamic recompiler option. Also, to keep your save files intact, make sure the filename of the new rom is the same as the old rom. Note: If repatching to upgrade, you need to patch an unmodified rom, not your already-patched one. , browse to the folder where the patched file is to be created and type in a filename for it (has to end with. In the Source file menu, click Open, select the Super Mario 64 DS rom to patch.In the Patch menu, click Open, select an xdelta file.Note which version of the game it was: there exist two US versions, 1.0 and 1.1. In the zip file there are several patches, apply the one that is named after your ROM dump. Another Super Mario 3D is a complete sequel to Super Mario 64 DS and the first completed romhack of said game.

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