test_stb_1:
  #_ MEMORY_IN 0x0000000010001000 [00, 00, 00, 00, 00, 00, 00, 00]
  #_ REGISTER_IN r3 0x00000000000000AB
  #_ REGISTER_IN r4 0x0000000010001000
  stb r3, 0(r4)
  blr
  #_ REGISTER_OUT r3 0x00000000000000AB
  #_ REGISTER_OUT r4 0x0000000010001000
  #_ MEMORY_OUT 10001000 AB000000

test_stb_offset:
  #_ MEMORY_IN 0x0000000010001000 [00, 00, 00, 00, 00, 00, 00, 00]
  #_ REGISTER_IN r3 0x00000000000000CD
  #_ REGISTER_IN r4 0x0000000010001000
  stb r3, 4(r4)
  blr
  #_ REGISTER_OUT r3 0x00000000000000CD
  #_ REGISTER_OUT r4 0x0000000010001000
  #_ MEMORY_OUT 10001004 CD000000

test_stbu_1:
  #_ MEMORY_IN 0x0000000010001000 [00, 00, 00, 00, 00, 00, 00, 00]
  #_ REGISTER_IN r3 0x00000000000000EF
  #_ REGISTER_IN r4 0x0000000010001000
  stbu r3, 4(r4)
  blr
  #_ REGISTER_OUT r3 0x00000000000000EF
  #_ REGISTER_OUT r4 0x0000000010001004
  #_ MEMORY_OUT 10001004 EF000000

test_stbx_1:
  #_ MEMORY_IN 0x0000000010001000 [00, 00, 00, 00, 00, 00, 00, 00]
  #_ REGISTER_IN r3 0x0000000000000012
  #_ REGISTER_IN r4 0x0000000010001000
  #_ REGISTER_IN r5 0x0000000000000003
  stbx r3, r4, r5
  blr
  #_ REGISTER_OUT r3 0x0000000000000012
  #_ REGISTER_OUT r4 0x0000000010001000
  #_ REGISTER_OUT r5 0x0000000000000003
  #_ MEMORY_OUT 10001000 00000012

test_stbux_1:
  #_ MEMORY_IN 0x0000000010001000 [00, 00, 00, 00, 00, 00, 00, 00]
  #_ REGISTER_IN r3 0x0000000000000034
  #_ REGISTER_IN r4 0x0000000010001000
  #_ REGISTER_IN r5 0x0000000000000005
  stbux r3, r4, r5
  blr
  #_ REGISTER_OUT r3 0x0000000000000034
  #_ REGISTER_OUT r4 0x0000000010001005
  #_ REGISTER_OUT r5 0x0000000000000005
  #_ MEMORY_OUT 10001004 00340000