18 lines
569 B
C
18 lines
569 B
C
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unsigned short __cdecl _byteswap_ushort(unsigned short _Short);
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unsigned short __cdecl _byteswap_ushort(unsigned short _Short)
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{
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#if defined(_AMD64_) || defined(__x86_64__) || defined(_X86_) || defined(__i386__)
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unsigned short retval;
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__asm__ __volatile__ ("rorw $8, %w[retval]" : [retval] "=rm" (retval) : "[retval]" (_Short));
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return retval;
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#else
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unsigned char *b = (void*)&_Short;
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unsigned char tmp;
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tmp = b[0];
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b[0] = b[1];
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b[1] = tmp;
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return _Short;
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#endif /* defined(_AMD64_) || defined(__x86_64__) || defined(_X86_) || defined(__i386__) */
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}
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