test_mulhwux_1:
  #_ REGISTER_IN r4 0x0000000000010000
  #_ REGISTER_IN r5 0x0000000000010000
  mulhwu. r3, r4, r5
  blr
  #_ REGISTER_OUT r3 0x0000000000000001
  #_ REGISTER_OUT r4 0x0000000000010000
  #_ REGISTER_OUT r5 0x0000000000010000

test_mulhwux_2:
  #_ REGISTER_IN r4 0x00000000FFFFFFFF
  #_ REGISTER_IN r5 0x0000000000000002
  mulhwu. r3, r4, r5
  blr
  #_ REGISTER_OUT r3 0x0000000000000001
  #_ REGISTER_OUT r4 0x00000000FFFFFFFF
  #_ REGISTER_OUT r5 0x0000000000000002

test_mulhwux_3:
  #_ REGISTER_IN r4 0x00000000FFFFFFFF
  #_ REGISTER_IN r5 0x00000000FFFFFFFF
  mulhwu. r3, r4, r5
  blr
  #_ REGISTER_OUT r3 0x00000000FFFFFFFE
  #_ REGISTER_OUT r4 0x00000000FFFFFFFF
  #_ REGISTER_OUT r5 0x00000000FFFFFFFF

test_mulhwux_4:
  #_ REGISTER_IN r4 0x0000000000000001
  #_ REGISTER_IN r5 0x0000000000000001
  mulhwu. r3, r4, r5
  blr
  #_ REGISTER_OUT r3 0x0000000000000000
  #_ REGISTER_OUT r4 0x0000000000000001
  #_ REGISTER_OUT r5 0x0000000000000001