This is a really slow Nintendo DS emulator for Sony PSP. Sektor made some minor changes to SofiyaCat’s release:

* Made sound optional
* Added controls
* Enabled FPS counter
* Set CPU to 333Mhz

It’s still painfully slow (usually under 3 FPS) and will never be full speed.

http://www.dcemu.co.uk/vbulletin/showthread.php?t=71040