Heres a new PSP Emulator that i dont recall hearing of before, heres the release notes :

CSharp Psp Emulator Git (2018/01/26) is compiled. CSharp Psp Emulator is a PlayStation Portable (PSP) emulator, emulator for windows. This emulator born as a proof of concept of an emulator made in D. Now it's getting more and more compatible with homebrew, and gaining in features and speed. The emulator was based in it's first version on great Noxa's C# pspplayer emulator.

CSharp Psp Emulator Git Changelog:
* Some more work on mac support
* Initial work on MacOS