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[ILUG] 64-int int math library for 32-bit int machines?

[ILUG] 64-int int math library for 32-bit int machines?

Dave Airlie airlied at csn.ul.ie
Wed Aug 25 11:03:24 IST 2004


>  ideally C, albeit C++ could be Ok, but NO assembly.
>  implementations in other languages (e.g., Java) which could
>  be used as a model and reference for a C version would be Ok.

as a guess this stuff usualy isn't that easy to implement in any efficent
sense with C or C++, (same reason as network checksums are usually inline
asm, getting the carry bit in C is inefficent..

>  Google(TM) has not (yet) been of much help here.  (I suppose
>  the GCC support library might have something like this?)

Ah with google you have to keep digging.. have a look at .
http://compilers.iecc.com/comparch/article/01-06-011

Dave.

-- 
David Airlie, Software Engineer
http://www.skynet.ie/~airlied / airlied at skynet.ie
pam_smb / Linux DECstation / Linux VAX / ILUG person




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