> Ok, understood. I'll add the optimization section to the tutorial, and then
> write a blog post for blog.racket-lang.org.
Blog post written:
http://blog.hashcollision.org/?p=114
It ended up being more of a history of the writing, more than a mini-tutorial.
_
On Wed, Jun 22, 2011 at 12:03 AM, Danny Yoo wrote:
>
> So it looks like a multiple of 4. It would be nice if that constant
> were smaller, but I'm still impressed that Racket gets even that
> close, given how little time Racket takes to do the actual
> compilation.
Here are some more vague thoug
Do brainfuck programs lend themselves to parallelism? If so, futures might help.
Robby
On Wed, Jun 22, 2011 at 12:03 PM, Danny Yoo wrote:
>> Doh. I screwed up again, and forgot the flag that enables JIT
>> compilation here. I'll regenerate the PyPy-driven bf evaluator by
>> using:
>>
>> $ p
> Doh. I screwed up again, and forgot the flag that enables JIT
> compilation here. I'll regenerate the PyPy-driven bf evaluator by
> using:
>
> $ python ./pypy/pypy/translator/goal/translate.py --opt=jit example5.py
>
> and generate corrected numbers soon. My apologies for being hasty.
>
F
> Ah, I see! I missed the link to the tutorial that explained out to
> generate the JITed versions of example1.py through example5.py. Ok,
> so I'll use
>
> $ python ./pypy/pypy/translator/goal/translate.py example5.py
>
Doh. I screwed up again, and forgot the flag that enables JIT
compilati
> Cool stuff, but you might want to compare to this example in PyPy:
>
> http://morepypy.blogspot.com/2011/04/tutorial-part-2-adding-jit.html
>
> If you get numbers, please share them here!
Ah, I see! I missed the link to the tutorial that explained out to
generate the JITed versions of exampl
On 6/20/11 5:37 PM, Danny Yoo wrote:
For comparison, here are the numbers I'm seeing from the PyPy tutorial
example1.py (using pypy b590cf6de419):
fermi ~/local/pypy-tutorial $ echo 100 | time
~/local/pypy/bin/pypy example1.py prime.b
Primes up to: 2 3 5 7 11 13 17 19 23 29 31 37 41 43
> It would be even better if you wrote it up as an optimization section.
Ok. Added a preliminary draft of section 9.1, which talks about
switching out the parameters used in the original implementation with
syntax parameters. Also includes a brief tutorial on syntax
parameters, because they're
>> You'd want to do the following:
>> - add some bounds checking in `increment-ptr' and `decrement-ptr'.
>> - change the `vector' operations to their `unsafe-vector' counterparts.
>> - change `sub1' and `add1' to use `unsafe-fx+' and `unsafe-fx-'
>> - change `=' to `unsafe-fx='
>> - change the
>
> You'd want to do the following:
> - add some bounds checking in `increment-ptr' and `decrement-ptr'.
> - change the `vector' operations to their `unsafe-vector' counterparts.
> - change `sub1' and `add1' to use `unsafe-fx+' and `unsafe-fx-'
> - change `=' to `unsafe-fx='
> - change the use
On Mon, Jun 20, 2011 at 1:46 PM, Danny Yoo wrote:
>
> In more detail: the key performance issue was the inefficient use of
> parameters. I had wanted to make sure I was using a fresh state per
> module, so I had set up a parameter called 'current-state' that was
> parameterized over the body of t
> On Mon, Jun 20, 2011 at 7:28 AM, Stephen De Gabrielle
> wrote:
>> there's also a discussion going on here:
>>
>> http://reddit.com/comments/i1slm
>
> ...of internet quality (that's an oxymoron).
Still, I'd be delighted if people upvoted the link. :)
I did notice that the Reddit discussion w
On Mon, Jun 20, 2011 at 7:28 AM, Stephen De Gabrielle
wrote:
> there's also a discussion going on here:
>
> http://reddit.com/comments/i1slm
...of internet quality (that's an oxymoron).
Shriram
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there's also a discussion going on here:
http://reddit.com/comments/i1slm
On Tue, Jun 14, 2011 at 4:33 PM, Danny Yoo wrote:
>>> One thing that I want to do is upload it somewhere more permanently,
>>> and to have all the documentation links work. None of the
>>> Racket-bound documentation lin
>> One thing that I want to do is upload it somewhere more permanently,
>> and to have all the documentation links work. None of the
>> Racket-bound documentation links are working, and I'd like to redirect
>> those links off to docs.racket-lang.org instead.
>
> You want to use the --redirect-main
On Tue, Jun 14, 2011 at 11:11 AM, Danny Yoo wrote:
> One thing that I want to do is upload it somewhere more permanently,
> and to have all the documentation links work. None of the
> Racket-bound documentation links are working, and I'd like to redirect
> those links off to docs.racket-lang.org
> The dilemma was to choose a language that was simple, and looked
> nothing like Racket. The choice was clear: it had to be brainf*ck.
> Here's the tutorial:
>
>
> http://planet.racket-lang.org/package-source/dyoo/bf.plt/1/2/planet-docs/manual/index.html
One thing that I want to do is uploa
On Mon, Jun 13, 2011 at 12:36 PM, Danny Yoo wrote:
> I've written a tutorial
Thank you.
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It was a very good read. Maybe too many parentheticals to avoid technical
errors? It is hard to comment until I try it myself. In any case, I think I
needed something exactly like this, so thank you very much.
Deren
On Jun 13, 2011 1:38 PM, "Danny Yoo" wrote:
> I've written a tutorial about how t
Excellent tutorial. This really helped me understand how to write a
language with a non-lispy syntax within Racket.
Thanks.
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On Mon, Jun 13, 2011 at 5:34 PM, Johnny Morrice wrote:
>
>> The dilemma was to choose a language that was simple, and looked
>> nothing like Racket. The choice was clear: it had to be brainf*ck.
>> Here's the tutorial:
>>
>>
>> http://planet.racket-lang.org/package-source/dyoo/bf.plt/1/2/pla
> The dilemma was to choose a language that was simple, and looked
> nothing like Racket. The choice was clear: it had to be brainf*ck.
> Here's the tutorial:
>
>
> http://planet.racket-lang.org/package-source/dyoo/bf.plt/1/2/planet-docs/manual/index.html
>
> Comments and suggestions would
I've written a tutorial about how to extend Racket so it supports
different languages. Material on this topic already exists in the
Guide, but I wanted to write an extended example that covers the
gauntlet, from setting up the PLaneT development links, to writing the
semantics and parser, to final
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