Author Topic: Please support Wii s virtual console game format!  (Read 53 times)

Offline 00888

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Please support Wii s virtual console game format!
« on: February 04, 2021, 09:28:45 AM »
I m not talking about the encrypted version which is common to all games (emulated or not), but the decrypted version actually used by the Nintendo s official emulator.

I extracted the N64 roms from the Wii virtual console titles. While the versions detected aren t the right one (for example pal Zelda 1.2 is detected as version 1.1), they work without modifications on mupen64plus fz.

However, the same can t be said about the save game data extracted from the Wii s filesystem. While some game games like Mario kart or Mario 64 works without modifications, for most games like 1080 the imported saved data isn t loaded.

The reason is simple. The save game format used by Nintendo for their Nintendo 64 emulators is almost the standard single file based format with optional bytes used for additionnal descriptions (I couldn t figure their purpose). That means the format is so simple that in some cases the emulated game s savedata don t need those descriptions.

Adding support for the official Nintendo s emulator savegame format would just be the matter of detecting and removing those additionnal bytes as the remaining works like with other emulators.

Offline fzurita

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Re: Please support Wii s virtual console game format!
« Reply #1 on: February 07, 2021, 01:26:19 PM »
You could make that request here:
https://github.com/mupen64plus/mupen64plus-core

It's unlikely to get fulfilled though since all in game saves are saved raw.

You can probably use a hex editor to remove the bytes.

Offline 00888

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Re: Please support Wii s virtual console game format!
« Reply #2 on: February 14, 2021, 03:04:59 PM »
You could make that request here:
https://github.com/mupen64plus/mupen64plus-core [nofollow]

It's unlikely to get fulfilled though since all in game saves are saved raw.

You can probably use a hex editor to remove the bytes.

At least this should be done for importing. And about chat codes, Mupen64plus fz shouldn t mistake game id with those of the console.