[racket] ANN: DOS, Delimited-continuation-based Operating-system Simulator

Sure, I can make a post about it. However, the core idea is already in
this post:

http://jeapostrophe.github.io/2012-07-12-cont-sys-post.html

I can make another one, however, to rehash it and talk about the
benefits of monoid states.

Jay

On Fri, Sep 26, 2014 at 2:15 PM, Michael Bradley, Jr.
<michaelsbradleyjr at gmail.com> wrote:
> Jay McCarthy <jay.mccarthy at ...> writes:
>
>>
>> I've just released the game architecture library I talked about in
>> part 2 of my RacketCon talk.
>>
>> The big picture of this library is to make World-style programs more
>>  compositional by (a) using continuations to hide the internal state
>> (including control state) of components and (b) using environments as
>> a standard monoid-based inter-component communication channel. A
>> monoid is used to ensure that the components can be evaluated in any
>> order. Despite assumptions some have about continuations and pure
>> functional programming, it is incredibly efficient and can run at
>> 60FPS, as demonstrated in get-bonus.
>>
>> You can get it with
>>
>> raco pkg install dos
>>
>> And you can try out the demo with
>>
>> racket -l dos/examples/win
>>
>> The demo source is a bare 39 lines:
>>
>> https://github.com/jeapostrophe/dos/blob/master/dos/examples/win.rkt
>>
>> and I provide the non-DOS version for comparison:
>>
>> https://github.com/jeapostrophe/dos/blob/master/dos/examples/win-long.rkt
>>
>> The core library has a mere 36 lines:
>>
>> https://github.com/jeapostrophe/dos/blob/master/dos/main.rkt
>>
>
>
>
> Hi Jay,
>
> I really enjoyed your talk on get-bonus at RacketCon last weekend, and
> appreciate your sharing DOS with all of us. Also, your presentation at
> Strange Loop 2013 was my first introduction to delimited continuations in
> Racket!
>
> I have benefited from a number of your blog posts in the past, e.g. the one
> on an improved threading macro, and was wondering if you would consider
> doing a write-up on DOS?
>
> Best regards,
>
> --
> Michael Bradley, Jr.
> @michaelsbradley
>
>
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>   http://lists.racket-lang.org/users



-- 
Jay McCarthy
http://jeapostrophe.github.io

           "Wherefore, be not weary in well-doing,
      for ye are laying the foundation of a great work.
And out of small things proceedeth that which is great."
                          - D&C 64:33