uint64_t HELPER(neon_sub_saturate_s64)(uint64_t src1, uint64_t src2)

{

    uint64_t res;



    res = src1 - src2;

    if (((res ^ src1) & SIGNBIT64) && ((src1 ^ src2) & SIGNBIT64)) {

        env->QF = 1;

        res = ((int64_t)src1 >> 63) ^ ~SIGNBIT64;

    }

    return res;

}
