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- Subject: Re: LuaJIT 2.0 and external C libraries
- From: David Given <dg@...>
- Date: Mon, 22 Mar 2010 18:17:35 +0000
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On 22/03/10 17:08, Mike Pall wrote:
[...]
> Easy, huh? Ok, so there's a lot more magic going on inside. E.g.
> you may have noticed it has hoisted the lookup of bit.bxor out of
> the loop and narrowed everything to integer arithmetic.
I was under the impression that LuaJIT did everything using double
precision floats. Is the narrowing-to-integer stuff new? If so, does
this mean that porting to devices with poor FPUs (such as ARM) would be
more feasible, with the bulk of the calculations happening using fast
integer operations and floats only used for the calculations that need it?
- --
┌─── ｄｇ＠ｃｏｗｌａｒｋ．ｃｏｍ ───── http://www.cowlark.com ─────
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