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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4973 | right-hear | 1 | #include |
| 2 | |||
| 3 | char * |
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| 4 | strncat(char *dst, const char *src, size_t n) |
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| 5 | { |
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| 6 | int d0, d1, d2, d3; |
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| 7 | __asm__ __volatile__( |
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| 8 | "repne\n\t" |
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| 9 | "scasb\n\t" |
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| 10 | "decl %1\n\t" |
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| 11 | "movl %8,%3\n" |
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| 12 | "1:\tdecl %3\n\t" |
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| 13 | "js 2f\n\t" |
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| 14 | "lodsb\n\t" |
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| 15 | "stosb\n\t" |
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| 16 | "testb %%al,%%al\n\t" |
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| 17 | "jne 1b\n" |
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| 18 | "2:\txorl %2,%2\n\t" |
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| 19 | "stosb" |
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| 20 | : "=&S" (d0), "=&D" (d1), "=&a" (d2), "=&c" (d3) |
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| 21 | : "0" (src),"1" (dst),"2" (0),"3" (0xffffffff), "g" (n) |
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| 22 | : "memory"); |
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| 23 | return dst; |
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| 24 | } |