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#ifndef __ARCH_I960_ATOMIC__

#define __ARCH_I960_ATOMIC__

/*

 * Atomic operations that C can't guarantee us.  Useful for

 * resource counting etc..

 */

typedef long atomic_t;

static __inline__ atomic_t atomic_add(atomic_t i, atomic_t *v)

{

        atomic_t r;

        __asm__ __volatile__("atadd     %3, %2, %1"

                             : "=m" (*v), "=d" (r)

                             : "dI" (i), "d" (v), "m"(*v));

        return r;

}

static __inline__ atomic_t atomic_sub(atomic_t i, atomic_t *v)

{

        atomic_t tmp, retval;

        __asm__ __volatile__("subo      %4, 0, %2\n\t"

                             "atadd     %5, %6, %1\n\t"

                             : "=m"(*v), "=d" (retval), "=d" (tmp)

                             : "m" (*v), "dI" (i), "d" (v), "2" (tmp));

        return retval;

}

static __inline__ atomic_t atomic_inc(atomic_t *v)

{

        atomic_t retval;

        __asm__ __volatile__("atadd     %2, 1, %1"

                             : "=m"(*v), "=d"(retval)

                             : "d" (v), "m"(*v));

        return retval;

}

static __inline__ atomic_t atomic_dec(atomic_t *v)

{

        return(atomic_add(-1, v));

}

static __inline__ atomic_t atomic_dec_and_test(atomic_t *v)

{

        return atomic_dec(v) == 1;

}

#endif /* __ARCH_I960_ATOMIC __ */