JSPspEmu Git (2014/05/22) is released. JSPspEmu is a PSP emulator made using javascript (actually typescript). It will work with any modern browser. Though the first version work only works with Chrome (desktop and android). At this point it can run some demos.

JSPspEmu Git Changelog:
- Improved prim batching
- Some cleanups
- Added support for memory write breakpoints
- Some refactorings
- Inverted bvf/bvt temporarily to get valhalla knights skinned (and the same problem as cspspemu, can't move characters, have to figure out why)

Try online: JSPspEmu Git (2014/05/22)
Source: Here