test_sth_1:
  #_ MEMORY_IN 0x0000000010001000 [00, 00, 00, 00, 00, 00, 00, 00]
  #_ REGISTER_IN r3 0x000000000000ABCD
  #_ REGISTER_IN r4 0x0000000010001000
  sth r3, 0(r4)
  blr
  #_ REGISTER_OUT r3 0x000000000000ABCD
  #_ REGISTER_OUT r4 0x0000000010001000
  #_ MEMORY_OUT 10001000 ABCD0000

test_sth_offset:
  #_ MEMORY_IN 0x0000000010001000 [00, 00, 00, 00, 00, 00, 00, 00]
  #_ REGISTER_IN r3 0x0000000000001234
  #_ REGISTER_IN r4 0x0000000010001000
  sth r3, 4(r4)
  blr
  #_ REGISTER_OUT r3 0x0000000000001234
  #_ REGISTER_OUT r4 0x0000000010001000
  #_ MEMORY_OUT 10001004 12340000

test_sthu_1:
  #_ MEMORY_IN 0x0000000010001000 [00, 00, 00, 00, 00, 00, 00, 00]
  #_ REGISTER_IN r3 0x0000000000005678
  #_ REGISTER_IN r4 0x0000000010001000
  sthu r3, 4(r4)
  blr
  #_ REGISTER_OUT r3 0x0000000000005678
  #_ REGISTER_OUT r4 0x0000000010001004
  #_ MEMORY_OUT 10001004 56780000

test_sthx_1:
  #_ MEMORY_IN 0x0000000010001000 [00, 00, 00, 00, 00, 00, 00, 00]
  #_ REGISTER_IN r3 0x0000000000009ABC
  #_ REGISTER_IN r4 0x0000000010001000
  #_ REGISTER_IN r5 0x0000000000000002
  sthx r3, r4, r5
  blr
  #_ REGISTER_OUT r3 0x0000000000009ABC
  #_ REGISTER_OUT r4 0x0000000010001000
  #_ REGISTER_OUT r5 0x0000000000000002
  #_ MEMORY_OUT 10001000 00009ABC

test_sthux_1:
  #_ MEMORY_IN 0x0000000010001000 [00, 00, 00, 00, 00, 00, 00, 00]
  #_ REGISTER_IN r3 0x000000000000DEF0
  #_ REGISTER_IN r4 0x0000000010001000
  #_ REGISTER_IN r5 0x0000000000000006
  sthux r3, r4, r5
  blr
  #_ REGISTER_OUT r3 0x000000000000DEF0
  #_ REGISTER_OUT r4 0x0000000010001006
  #_ REGISTER_OUT r5 0x0000000000000006
  #_ MEMORY_OUT 10001004 0000DEF0