DEF0 55                      push ebp
  DEF1 8BEC                    mov ebp, esp
  DEF3 53                      push ebx
  DEF4 56                      push esi
  DEF5 57                      push edi
  DEF6 8B7D08                  mov edi, dword[ebp+08]
  DEF9 8B750C                  mov esi, dword[ebp+0C]
  DEFC 8B4F04                  mov ecx, dword[edi+04]
  DEFF 8B5F10                  mov ebx, dword[edi+10]
  DF02 8BD1                    mov edx, ecx
  DF04 83E107                  and ecx, 00000007
  DF07 C1EA03                  shr edx, 03
  DF0A 8B0413                  mov eax, dword[ebx+edx]
  DF0D 0FC8                    bswap eax
  DF0F D3E0                    shl eax, cl
  DF11 B920000000              mov ecx, 00000020
  DF16 2BCE                    sub ecx, esi
  DF18 D3E8                    shr eax, cl
  DF1A 017704                  add dword[edi+04], esi
  DF1D 5F                      pop edi
  DF1E 5E                      pop esi
  DF1F 5B                      pop ebx
  DF20 5D                      pop ebp
  DF21 C3                      ret