Andrew
42e77931bf
- Move source code from `trunk` into program root directory. - Update build files.
25 lines
629 B
C
25 lines
629 B
C
/* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */
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#include <string.h>
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int strncmp(const char* s1, const char* s2, size_t n)
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{
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register int __res;
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int d0, d1, d2;
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__asm__ __volatile__(
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"1:\tdecl %3\n\t"
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"js 2f\n\t"
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"lodsb\n\t"
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"scasb\n\t"
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"jne 3f\n\t"
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"testb %%al,%%al\n\t"
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"jne 1b\n"
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"2:\txorl %%eax,%%eax\n\t"
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"jmp 4f\n"
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"3:\tsbbl %%eax,%%eax\n\t"
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"orb $1,%%al\n"
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"4:"
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: "=a"(__res), "=&S"(d0), "=&D"(d1), "=&c"(d2)
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: "1"(s1), "2"(s2), "3"(n));
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return __res;
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}
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