x64/bits.s

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   3
   4 global htonl
   5 global ntohl
   6 htonl:
   7 ntohl:
   8         mov     eax, edi
   9         xchg    al, ah
  10         ror     eax, 16
  11         xchg    al, ah
  12         ret
  13
  14 global htons
  15 global ntohs
  16 htons:
  17 ntohs:
  18         mov     eax, edi
  19         ror     ax, 8
  20         ret