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9765 turbocat 1 
#include
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char* strcat(char* s, const char* append)
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{
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    int d0, d1, d2, d3;
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    __asm__ __volatile__(
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        "repne\n\t"
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        "scasb\n\t"
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        "decl %1\n"
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        "1:\tlodsb\n\t"
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        "stosb\n\t"
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        "testb %%al,%%al\n\t"
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        "jne 1b"
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        : "=&S"(d0), "=&D"(d1), "=&a"(d2), "=&c"(d3)
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        : "0"(append), "1"(s), "2"(0), "3"(0xffffffff)
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        : "memory");
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    return s;
8687 turbocat 18 
}