test_stwbrx_1:
  #_ MEMORY_IN 0x0000000010001000 [00, 00, 00, 00, 00, 00, 00, 00]
  #_ REGISTER_IN r3 0x0000000012345678
  #_ REGISTER_IN r4 0x0000000010001000
  #_ REGISTER_IN r5 0
  stwbrx r3, r4, r5
  blr
  #_ REGISTER_OUT r3 0x0000000012345678
  #_ REGISTER_OUT r4 0x0000000010001000
  #_ REGISTER_OUT r5 0
  #_ MEMORY_OUT 10001000 78563412

test_stwbrx_2:
  #_ MEMORY_IN 0x0000000010001000 [00, 00, 00, 00, 00, 00, 00, 00]
  #_ REGISTER_IN r3 0x00000000ABCDEF01
  #_ REGISTER_IN r4 0x0000000010001000
  #_ REGISTER_IN r5 4
  stwbrx r3, r4, r5
  blr
  #_ REGISTER_OUT r3 0x00000000ABCDEF01
  #_ REGISTER_OUT r4 0x0000000010001000
  #_ REGISTER_OUT r5 4
  #_ MEMORY_OUT 10001004 01EFCDAB

test_stwbrx_3:
  #_ MEMORY_IN 0x0000000010001000 [00, 00, 00, 00, 00, 00, 00, 00]
  #_ REGISTER_IN r3 0x00000000FFFEFDFC
  #_ REGISTER_IN r4 0
  #_ REGISTER_IN r5 0x0000000010001000
  stwbrx r3, r4, r5
  blr
  #_ REGISTER_OUT r3 0x00000000FFFEFDFC
  #_ REGISTER_OUT r4 0
  #_ REGISTER_OUT r5 0x0000000010001000
  #_ MEMORY_OUT 10001000 FCFDFEFF