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

Release notes:

[=>] Merged from Dev branch:

Rev 331 – Salvy
[!] Simplified alpha test checks
[!] Simplified and inline SetMux
[~] Removed hack for Aidyn (no longer needed)
[~] Do not test for GU_GREATER in alpha threshold mode (was breaking Aidym)
[!] Fixed debug build
Rev 332 – Salvy
[~] Corrected order of rt and rs in SPECIAL opcodes that had it incorrect
[~] DSUBU/ADDU should be unsigned
Rev 333 – Corn
[!] small optimization of StoreFPR_Double()
[~] clean up some redundant code in math.h
Rev 334 – Salvy
[!] Optimize interrupts (this time shouldn’t cause issues)
[!] Check first if interrupts are enabled to avoid wasting time checking for pending interrupts
Rev 335 – Salvy
[!] Optimized out instances of status reg
Rev 336 – Salvy
[+] Different approach to check for Cop1 Unusuable exceptions (previous approach added too much bloat to the emulator)
Rev 337 – Salvy
[!] Bump up OSHLE cache version

http://forums.daedalusx64.com/viewtopic.php?f=12&t=2640&start=0