fix compareUnsignedCR, which relied on sign extension in cmplwi, which actually does zero extension; fix use of li argument to instruction format I
fix compareUnsignedCR, which relied on sign extension in cmplwi, which actually does zero extension; fix use of li argument to instruction format I

badlogic/avian,joshuawarner32/avian,bigfatbrowncat/avian-pack.avian,badlogic/avian,dicej/avian,lostdj/avian,dicej/avian,lostdj/avian,getlantern/avian,bgould/avian,MaartenR/avian,marcinolawski/avian,bigfatbrowncat/avian-pack.avian,MaartenR/avian,lostdj/avian,minor-jason/avian,MaartenR/avian,lostdj/avian,minor-jason/avian,bigfatbrowncat/avian-pack.avian,lwahlmeier/avian,dicej/avian,ucdseniordesign/avian,bgould/avian,badlogic/avian,ucdseniordesign/avian,bgould/avian,getlantern/avian,marcinolawski/avian,lwahlmeier/avian,minor-jason/avian,badlogic/avian,ucdseniordesign/avian,marcinolawski/avian,ucdseniordesign/avian,bgould/avian,getlantern/avian,minor-jason/avian,joshuawarner32/avian,joshuawarner32/avian,lwahlmeier/avian,bigfatbrowncat/avian-pack.avian,MaartenR/avian,joshuawarner32/avian,lwahlmeier/avian,dicej/avian,getlantern/avian,marcinolawski/avian