> And I don't know if it is broken for all mips, loongson2f is different
> from the other mips, or what.
>
> Anyone knows more details? I'll keep investigating a bit more.
It might be implemented so. I would ask the designers.
>
> Here is the C++ code I used. Change it at will to test:
> ----------------
> #include <limits>
> #include <math.h>
> #include <iostream>
>
> double madd(double a, double b, double c)
> {
> return a*b+c;
> }
>
> int main()
> {
> double z = 0;
> double f = std::numeric_limits<double>::quiet_NaN();
>
> double g = madd(z, 1, 1);
>
> std::cout << "primer: " << g << std::endl;
>
> f = std::numeric_limits<double>::signaling_NaN();
>
> g = madd(z, f, f);
>
> std::cout << "segon: " << g << std::endl;
>
> return 0;
> }
> ----------------
>
>
> Regards,
> Llu韘.
>
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