Re: Help with Hand-Optimized Assembly

[Terje Mathisen]

Tim Roberts wrote:
> Terje Mathisen<"terje.mathisen at tmsw.no"@giganews.com>  wrote:
> > Inline C isn't too hard to write:
>
> Have you tried this code?
>
> > inline double delta(double th1, th2)
> > {
> >      static double pi = 3.14159265357989;
> >      static double zero_or_twopi[2] = {0, 3.14159265357989*2};
> >      static double absmask = (double) 0x7fffffffffffffff;
>
> That doesn't do what you think it does.  That cast converts the constant to
> floating point -- it doesn't just copy the bits.  There are only 56 bits of
> mantissa available in a double, so some of your bits get lost.

I do know that,I was in a hurry and tried to get away with psudocode, 
but I should have stated that clearly.

Thanks for correcting my omissions!

Terje--
- <Terje.Mathisen at tmsw.no>
"almost all programming can be viewed as an exercise in caching"