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Rev 2465 Rev 2468
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{
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{
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    int ret;
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    int ret;
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    volatile long * mem = &(val->count);
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    volatile long * mem = &(val->count);
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    asm volatile (
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    asm volatile (
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        "1:                 \n"
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    "1:\n"
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        "ldr r2, [%1]       \n"
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        "ldr r2, [%1]\n"
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        "add r3, r2, %2     \n"
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        "add r3, r2, %2\n"
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        "str r3, %0         \n"
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        "str r3, %0\n"
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        "swp r3, r3, [%1]   \n"
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        "swp r3, r3, [%1]\n"
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        "cmp r3, r2         \n"
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        "cmp r3, r2\n"
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        "bne 1b             \n"
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        "bne 1b\n"
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        : "=m" (ret)
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        : "=m" (ret)
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        : "r" (mem), "r" (i)
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        : "r" (mem), "r" (i)
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        : "r3", "r2"
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        : "r3", "r2"
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    );
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    );
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/** Atomic increment.
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/** Atomic increment.
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 *
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 *
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 * @param val Variable to be incremented.
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 * @param val Variable to be incremented.
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 */
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 */
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static inline void atomic_inc(atomic_t *val) { atomic_add(val, 1); }
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static inline void atomic_inc(atomic_t *val)
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{
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    atomic_add(val, 1);
- 
 
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}
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/** Atomic decrement.
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/** Atomic decrement.
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 *
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 *
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 * @param val Variable to be decremented.
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 * @param val Variable to be decremented.
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 */
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 */
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static inline void atomic_dec(atomic_t *val) { atomic_add(val, -1); }
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static inline void atomic_dec(atomic_t *val)
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{
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    atomic_add(val, -1);
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}
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/** Atomic pre-increment.
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/** Atomic pre-increment.
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 *
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 *
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 * @param val Variable to be incremented.
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 * @param val Variable to be incremented.
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 * @return    Value after incrementation.
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 * @return    Value after incrementation.
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 */
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 */
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static inline long atomic_preinc(atomic_t *val) { return atomic_add(val, 1); }
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static inline long atomic_preinc(atomic_t *val)
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{
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    return atomic_add(val, 1);
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}
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/** Atomic pre-decrement.
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/** Atomic pre-decrement.
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 *
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 *
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 * @param val Variable to be decremented.
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 * @param val Variable to be decremented.
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 * @return    Value after decrementation.
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 * @return    Value after decrementation.
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 */
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 */
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static inline long atomic_predec(atomic_t *val) { return atomic_add(val, -1); }
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static inline long atomic_predec(atomic_t *val)
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{
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    return atomic_add(val, -1);
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}
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/** Atomic post-increment.
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/** Atomic post-increment.
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 *
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 *
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 * @param val Variable to be incremented.
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 * @param val Variable to be incremented.
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 * @return    Value before incrementation.
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 * @return    Value before incrementation.
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 */
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 */
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static inline long atomic_postinc(atomic_t *val) { return atomic_add(val, 1) - 1; }
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static inline long atomic_postinc(atomic_t *val)
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{
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    return atomic_add(val, 1) - 1;
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}
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/** Atomic post-decrement.
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/** Atomic post-decrement.
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 *
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 *
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 * @param val Variable to be decremented.
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 * @param val Variable to be decremented.
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 * @return    Value before decrementation.
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 * @return    Value before decrementation.
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 */
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 */
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static inline long atomic_postdec(atomic_t *val) { return atomic_add(val, -1) + 1; }
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static inline long atomic_postdec(atomic_t *val)
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{
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    return atomic_add(val, -1) + 1;
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}
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#endif
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#endif
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/** @}
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/** @}