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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4973 | right-hear | 1 | #include |
| 2 | #include |
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| 3 | #include |
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| 4 | |||
| 5 | void * memcpy(void * _dest, const void *_src, size_t _n) |
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| 6 | { |
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| 7 | int d0, d1, d2; |
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| 8 | __asm__ __volatile__( |
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| 9 | "jcxz 1f\n\t" |
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| 10 | "rep ; movsl\n\t" |
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| 11 | "1:\t" |
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| 12 | "testb $2,%b4\n\t" |
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| 13 | "je 1f\n\t" |
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| 14 | "movsw\n" |
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| 15 | "1:\ttestb $1,%b4\n\t" |
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| 16 | "je 2f\n\t" |
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| 17 | "movsb\n" |
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| 18 | "2:" |
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| 19 | : "=&c" (d0), "=&D" (d1), "=&S" (d2) |
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| 20 | :"0" (_n/4), "q" (_n),"1" ((long)_dest),"2" ((long)_src) |
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| 21 | : "memory"); |
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| 22 | return (_dest); |
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| 23 | } |