there's an intersection when working with vector regs on every isa at some point where "oh boy i am doing something so terribly awfully gross and rancid i am definitely burning for this one", and, "this is literally the best way to do [thing] with what i have" meet each other (x86 tends to encourage this more than others i find)
really feeling this vibe emulating the pcmpestri/pcmpestrm, pcmpistri/pcmpistrm instructions
