1 unsigned short __cdecl _byteswap_ushort(unsigned short _Short); 2 _byteswap_ushort(unsigned short _Short)3unsigned short __cdecl _byteswap_ushort(unsigned short _Short) 4 { 5 #if defined(_AMD64_) || defined(__x86_64__) || defined(_X86_) || defined(__i386__) 6 unsigned short retval; 7 __asm__ __volatile__ ("rorw $8, %w[retval]" : [retval] "=rm" (retval) : "[retval]" (_Short)); 8 return retval; 9 #else 10 unsigned char *b = (void*)&_Short; 11 unsigned char tmp; 12 tmp = b[0]; 13 b[0] = b[1]; 14 b[1] = tmp; 15 return _Short; 16 #endif /* defined(_AMD64_) || defined(__x86_64__) || defined(_X86_) || defined(__i386__) */ 17 } 18