Support for new instructions:

  fmadd     Floating multiply-add
  fmsub     Floating multiply-subtract
  rlwnm     Rotate left word than AND with mask
  rotlw     Rotate left word
  rotlwi    Rotate left word immediate
  rotrwi    Rotate right word immediate
  rldcl     Rotate left double word then clear left
  rotld     Rotate left double word
  rotldi    Rotate left double word immediate
  rotrdi    Rotate right double word immediate