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

[Brian Foster]

  | 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
  |  http://compilers.iecc.com/comparch/article/01-06-011

 thanks for the pointer!
 whilst that specific message was not too useful, another
 one in the same thread was:

     http://compilers.iecc.com/comparch/article/01-06-022

 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).

cheers!
	-blf-

p.s.  more suggestions very welcome.  again, thanks!

  | 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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