Revision 4955a2cd exec-all.h
| b/exec-all.h | ||
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#ifdef __i386__ |
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static inline int testandset (int *p) |
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{
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char ret; |
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long int readval; |
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long int readval = 0; |
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__asm__ __volatile__ ("lock; cmpxchgl %3, %1; sete %0"
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: "=q" (ret), "=m" (*p), "=a" (readval)
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: "r" (1), "m" (*p), "a" (0)
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: "memory");
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return ret;
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__asm__ __volatile__ ("lock; cmpxchgl %2, %0"
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: "+m" (*p), "+a" (readval)
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: "r" (1) |
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: "cc");
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return readval;
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} |
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#endif |
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|
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#ifdef __x86_64__ |
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static inline int testandset (int *p) |
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{
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char ret; |
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int readval; |
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long int readval = 0; |
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__asm__ __volatile__ ("lock; cmpxchgl %3, %1; sete %0"
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: "=q" (ret), "=m" (*p), "=a" (readval)
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: "r" (1), "m" (*p), "a" (0)
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: "memory");
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return ret;
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__asm__ __volatile__ ("lock; cmpxchgl %2, %0"
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: "+m" (*p), "+a" (readval)
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: "r" (1) |
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: "cc");
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return readval;
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} |
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#endif |
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|
| ... | ... | |
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: "=r" (ret) |
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: "m" (p) |
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: "cc","memory"); |
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return ret == 0;
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return ret; |
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} |
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#endif |
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