VME LLE in line with recent findings

[bruder-grimm]

What should happen

I am developing a port that relies on recent findings about the media engine. As far as I could tell at the moment only the kernel calls to media decoding are being handled, and I was wondering how big of an undertaking it would be to incorporate the matrix operation capabilities that have been discovered?

Documentation of the features (subject to change) can be found in the media engine repositories

https://github.com/mcidclan/psp-media-engine-safe-task

Who would this benefit

Homebrew developers that will take advantage of what is technically almost a second MIPS core

Platform (if relevant)

None

Games this would be useful in

Homebrew

Other emulators or software with a similar feature

No response

Checklist

• Check the latest git build in case it's already implemented.
• Search for other requests of the same feature.

[hrydgard]

You mean LLE?

Right now we bypass the media engine completely, and HLE (fake) sceMpeg, sceAtrac, and the other libraries that use it.

It's a large step from here to actually using the actual VME instructions.

There was an AI-generated PR that supports enough of the ME to run some homebrew that uses it, that might be a starting point: #21554

[bruder-grimm]

You mean LLE?

Yes. I was nowhere near having investigated the codebase enough to even consider doing my own PR, and wanted to check if this might be on the roadmap.
The PR you sent seems does seem like a good starting point. I might rebase and see what I can do, but I'm not expecting any miracles.