Hello guys, this is my first post here! I just got a MIG Switch card out of curiosity and I was tinkering with it. For those who don't know, it's used by placing XCI dumps as well as other game specific bin files in the sd card of the MIG Switch, and are obtained from the original cartridge by using an app like nxdumptool. Two of these bin files are mandatory to get the game to boot: Initial Data.bin and Certificate.bin. They stay the same for every cartridge of a specific game. Now, if you want to use an XCI dump from a shady website it's impossible to get it to work without those files. By using the Certificate.bin from another game it has no problem, but this does not count for the Initial Data.bin. So I looked for a way to obtain this Initial Data from an XCI file and read a bit of the XCI file documentation from switchbrew dot org. Here's what I understood so far: The Switch checks if the cartridge is valid by doing a challenge–response authentication on the Initial Data. The Package ID is contained both on the XCI and the Initial Data, on positions 0x110 and 0x0 respectively. The Initial Data hash is on the XCI at position 0x160. It is calculated by doing a SHA-256 hash on the full Initial Data content. So I was wondering, is there a way to to construct a functional Initial Data file starting from an XCI dump? I also tried a reverse approach by editing the Package ID in the Initial Data from another game, generating the Initial Data hash and putting it in the XCI file but is not enough to get the Switch believe it's a real game. Sorry if this may seem stupid but let me know what you think.

duckstation for Switch

catlover007 · 2024-04-22T04:06:40+00:00

duckstation is an excellent Playstation 1 emulator by Stenzek. It has a very good compabiility and it is quite performant. It also supports all kinds of enhancements such as high resolution rendering and PGXP which can lessen the "wobble" and...

Homebrew Question Psp emulation?

Thread starter CecilioX3
Start date Feb 9, 2019
Views 3,128
Replies 3

CecilioX3

Well-Known Member

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Level 4

Feb 9, 2019

Is PsP emulation possible yet? Haven't been that updated for the past month.

Fadi5555

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Member

Level 11

Feb 9, 2019

There’s an official GitHub thread talking about this.
Here’s the link
https://github.com/hrydgard/ppsspp/issues/10934

ZachyCatGames

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Level 14

Feb 10, 2019

In lakka, yes. In Horizon, no

Vadographer

Active Member

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Level 2

Feb 10, 2019

to answer your question, it is entirely possible right now, but it would be incredibly slow, and it would need a lot of polish and optimization. but now that we have overclocking and a dynarec, an emulator has the possibility to pop up within the year. but it'll be like the DS emulators: slow, unoptimized, and strictly "proof of concept" for a long time. But that's only if you want the emulator to run in horizon. in lakka it is fairly decent, but with retroarch being ported to the switch, a lot of people are looking to phase out the need for lakka entirely.

Last edited by Vadographer, Feb 10, 2019