Re: Problems converting Float to Integer efficiently

["Dr. Adrian Wrigley" <amtw@linuxchip.demon.co.uk.uk.uk>]

Jeff C, wrote:
...
> begin
>   Asm ("cvttss2si %1, %0",inputs  => float'asm_input("m", y),
>                           Outputs => integer'asm_output("=r",temp));
>   return temp;
> end truncate;
...

This looks like the kind of thing I was wanting the compiler to produce.
I'm not a whizz at Intel Assember (nor package Machine_Code), so it might have
taken a long time to for me to figure out exactly what I needed.

It's a bit disappointing that the compiler does not produce code like this for
some "obvious" source code.  I dislike Ada's default of rounding to nearest, and
it seems that a series of Float=>Integer attributes might help the compiler.

I have Athlons and GNAT 3.15, so I may have to experiment with this approach.
But it is now past my bedtime...

Thanks for a speedy response on this problem!
--
Adrian Wrigley, Cambridge, England.