src/build/libroot/byteorder.cpp

   1
   2 #ifdef BUILDING_FS_SHELL
   3 #       include "compat.h"
   4 #else
   5 #       include <BeOSBuildCompatibility.h>
   6 #endif
   7
   8 #include <ByteOrder.h>
   9
  10 uint16
  11 __swap_int16(uint16 value)
  12 {
  13         return (value >> 8) | (value << 8);
  14 }
  15
  16 uint32
  17 __swap_int32(uint32 value)
  18 {
  19         return (value >> 24) | ((value & 0xff0000) >> 8) | ((value & 0xff00) << 8)
  20                 | (value << 24);
  21 }
  22
  23 uint64
  24 __swap_int64(uint64 value)
  25 {
  26         return uint64(__swap_int32(uint32(value >> 32)))
  27                 | (uint64(__swap_int32(uint32(value))) << 32);
  28 }