[ILUG] 64-int int math library for 32-bit int machines?
blf at blf.utvinternet.co.uk
Wed Aug 25 22:42:01 IST 2004
| Date: Wed, 25 Aug 2004 11:03:24 +0100 (IST)
| From: Dave Airlie <airlied at csn.ul.ie>
| > ideally C, albeit C++ could be Ok, but NO assembly.
| as a guess this stuff usualy isn't that easy to implement in any efficent
| sense with C [ ... because ] getting the carry bit in C is inefficent..
YES. but I did not ask for time efficiency per se.
( and not all architectures have a "carry bit", but
that is a different issue. )
| > Google™ has not (yet) been of much help here. [ ... ]
| Ah with google you have to keep digging.. have a look at
thanks for the pointer!
whilst that specific message was not too useful, another
one in the same thread was:
that refers to Dr D.Knuth's MMIX engine (MMIX is the
RISC-ish replacement for MIX) implementation, in what
is (almost-)portable C, of what seems to be exactly
what I want. that thread also has some references
to several published algorithms (including, of course,
those in The Art of Computer Programming).
p.s. more suggestions very welcome. again, thanks!
| David Airlie, Software Engineer
| http://www.skynet.ie/~airlied / airlied at skynet.ie
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