DaedalusX64 is the continuation of the original Daedalus PSP port by StrmnNrmn and other contributors. It is a GPL Open Source project.

Changes:

[+] Re-enable optimization of JAL, JALR in the PSP code generator (Small Speed-up)
[+] Optimized ADDIU logic in the PSP code generator (Small speed-up)
[+] Simplify some logic for the Dynarec (Very Small speed-up)
[+] Added “Advanced Options” menu containing containing options that generally break more ROMs than they help. (Also for testing and bug reporting)
[!] Fixed saved Controller Configuration not being loaded on ROM Initialization (Bug #25)

http://forums.daedalusx64.com/viewtopic.php?f=52&t=1199