test_stvewx128_1:
  # Store vector element word 128 - stores 4 bytes at aligned address
  #_ MEMORY_IN 0x0000000010001000 [CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC]
  #_ REGISTER_IN r4 0x0000000010001000
  #_ REGISTER_IN v3 [01020304, 05060708, 090A0B0C, 0D0E0F10]
  stvewx128 v3, r0, r4
  blr
  #_ REGISTER_OUT r4 0x0000000010001000
  #_ REGISTER_OUT v3 [01020304, 05060708, 090A0B0C, 0D0E0F10]
  #_ MEMORY_OUT 10001000 01020304

test_stvewx128_2:
  # Store to second element position
  #_ MEMORY_IN 0x0000000010001000 [CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC]
  #_ REGISTER_IN r4 0x0000000010001004
  #_ REGISTER_IN v3 [01020304, 05060708, 090A0B0C, 0D0E0F10]
  stvewx128 v3, r0, r4
  blr
  #_ REGISTER_OUT r4 0x0000000010001004
  #_ REGISTER_OUT v3 [01020304, 05060708, 090A0B0C, 0D0E0F10]
  #_ MEMORY_OUT 10001004 05060708

test_stvewx128_3:
  # Store to third element position
  #_ MEMORY_IN 0x0000000010001000 [CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC]
  #_ REGISTER_IN r4 0x0000000010001008
  #_ REGISTER_IN v3 [01020304, 05060708, 090A0B0C, 0D0E0F10]
  stvewx128 v3, r0, r4
  blr
  #_ REGISTER_OUT r4 0x0000000010001008
  #_ REGISTER_OUT v3 [01020304, 05060708, 090A0B0C, 0D0E0F10]
  #_ MEMORY_OUT 10001008 090A0B0C

test_stvewx128_4:
  # Store to fourth element position
  #_ MEMORY_IN 0x0000000010001000 [CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC]
  #_ REGISTER_IN r4 0x000000001000100C
  #_ REGISTER_IN v3 [01020304, 05060708, 090A0B0C, 0D0E0F10]
  stvewx128 v3, r0, r4
  blr
  #_ REGISTER_OUT r4 0x000000001000100C
  #_ REGISTER_OUT v3 [01020304, 05060708, 090A0B0C, 0D0E0F10]
  #_ MEMORY_OUT 1000100C 0D0E0F10