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On Wed, 14 Jul 1999, John A. Tamplin wrote:
>
> > I'm most of the way to getting it working myself, but I was curious to
> > see if anyone has implemented a random number generator in their bot.
> > Anyone? Anyone?
>
> gnulibc has a good LCGM you can just link in.
Probably a dumb question, but how do I link in another copy of libc,
besides the hacked-down one already present in legOS? I can't just copy
the one on top of the other, and the linker should just link in the first
it finds, correct?
At any rate, it is mostly academic. The stripped down version of the PRNG
I found takes only about 800B, and if you want to get numbers other than
0-65535, it only takes another 1100B to link in Kekoa's library. I
can't imagine any libc stuff being smaller than that. It is
also very fast, and is provably very random. Once I hear from the author,
I will post full code. In the meantime, I've posted a link to his site
and a brief description of the few necessary modifications to make it
work in the HOWTO.
Hope this helps someone out besides myself-
Luis
http://arthurdent.dorm.duke.edu/legos/HOWTO/HOWTO.html
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Message has 1 Reply:
 | | Re: random numbers
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| (...) You could either take just the source file out of gnulibc and link it in, or you could change your setup to actually use the gnulibc (which is what I am doing, although not with legOS). (...) It depends on what you want the RNG for. If all you (...) (25 years ago, 14-Jul-99, to lugnet.robotics.rcx.legos)
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Message is in Reply To:
| | Re: random numbers
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| (...) gnulibc has a good LCGM you can just link in. John A. Tamplin Traveller Information Services jat@LiveOnTheNet.COM 2104 West Ferry Way 256/705-7007 - FAX 256/705-7100 Huntsville, AL 35801 (25 years ago, 14-Jul-99, to lugnet.robotics.rcx.legos)
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