mflr   r12
  bl     get_data_ptr
get_data_ptr_ret:
  mflr   r11

  lwz    r10, [r11]

  # Copy part1 data into place
  lwz    r3, [r10 + 0x08]
  addi   r4, r11, 0x0008
  li     r5, 0x41C
  bl     memcpy

  # Copy part2 data into place, but retain the values of a few metadata fields
  # so the game won't think the file is corrupt
  lwz    r3, [r10 + 0x0C]
  lwz    r7, [r3 + 0x04]  # creation_timestamp
  lwz    r8, [r3 + 0x08]  # signature
  lwz    r9, [r3 + 0x14]  # save_count
  addi   r4, r11, 0x0424
  lwz    r5, [r11 + 4]
  bl     memcpy
  lwz    r3, [r10 + 0x0C]
  stw    [r3 + 0x04], r7  # creation_timestamp
  stw    [r3 + 0x08], r8  # signature
  stw    [r3 + 0x14], r9  # save_count

  li     r3, 1
  mtlr   r12
  blr

memcpy:
  .include CopyDataWords
  blr

get_data_ptr:
  bl     get_data_ptr_ret