Dear Colleagues: I thought I was going to be the [co?]moderator. How does that work? Soren Renner....
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wtanksley@...
May 1, 2000 3:56 pm
From: Soren Renner [mailto:srenner@...] ... I have to check a box for that to happen. Once I do that, you can handle any of the new subscriptions we need;...
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wtanksley@...
May 1, 2000 4:10 pm
It's good to see six people here at the start. At this rate we'll be able to form a newsgroup by summer. Let's get down to business. There are some things...
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iepos@...
May 1, 2000 7:25 pm
... Here's my understanding... a stack frame in an applicative language is very similar to the data stack in a concatenative language (such as FORTH or Joy),...
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wtanksley@...
May 1, 2000 8:56 pm
From: iepos@... [mailto:iepos@...] ... There's a problem here. The applicative stack frame is used to hold parameters which have been applied to...
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iepos@...
May 2, 2000 12:06 am
... Okay... I'm sort of confused... saving the whole data stack would be a very silly, inefficient thing to do in most cases, and wouldn't make sense in a...
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wtanksley@...
May 2, 2000 3:27 am
From: iepos@... [mailto:iepos@...] ... Eh? I thought you did. In that case, forget what I said. I was arguing against that. I don't see a...
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Soren Renner
srenner@...
May 2, 2000 8:32 pm
I'm not sure what a continuation is exactly, but Mr. Thun, Joy's author, does, because in the standard Joy library is the following: ... (* - - - - - C O M B...
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iepos@...
May 3, 2000 4:40 pm
... That's interesting... I'd never noticed that before. The core primitive at work seems to be "conts". But, it doesn't seem to be working right on my (Linux...
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iepos@...
May 3, 2000 10:34 pm
... A strange confusion... I'm not sure how this happened :-) Anyway, now for a topic I've been wanting to discuss for a little while: "lambdas" and their...
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wtanksley@...
May 4, 2000 12:27 am
From: iepos@... [mailto:iepos@...] ... This is a clear restatement, yes. ... ...although I'm sure you meant to write this x\[x x *], since...
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iepos@...
May 4, 2000 3:19 pm
... Hmm... The original way I wrote it is still what I meant. I need to clarify... Okay, when I say "[foo]", I mean Push "foo" onto the stack. "foo" usually...
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srenner@...
May 4, 2000 4:37 pm
In this implementation, the fundamental data structure is a box chain. A box is just a record with a pointer to another box. A box chain is just a linked list....
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Massimo Dentico
m.dentico@...
May 4, 2000 9:20 pm
A short introduction to continuations: "Continuations Made Simple and Illustrated" by Denys Duchier -...
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wtanksley@...
May 5, 2000 2:04 am
This is being bcc'ed to the guy who implemented the optimizer. Sam, if you'd care to make your optimiser public, feel free to upload it to this egroup or...
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iepos@...
May 5, 2000 4:20 pm
... I'm a bit puzzled about one thing... Why are there two separate stacks (a box stack and an int stack)? Your "IF" primitive seems to pop things off the box...
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wtanksley@...
May 5, 2000 7:03 pm
From: iepos@... [mailto:iepos@...] ... For the same reason that Forth has two stacks: one stack holds the continuation to which the current...
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Soren Renner
srenner@...
May 5, 2000 8:42 pm
"Your "IF" primitive seems to pop things off the box stack, but I haven't seen any primitives that push things on... Does you[r] system have a quotation...
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wtanksley@...
May 5, 2000 10:17 pm
From: Soren Renner [mailto:srenner@...] ... It's kind of inconvenient to have an interactive system without the ability to define things. However, if...
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iepos@...
May 5, 2000 10:44 pm
... These do not make sense to me. To me, the extension seems fairly clear and consistent; it does not really add any funky syntax. Programs are still...
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Soren Renner
srenner@...
May 5, 2000 11:15 pm
May I suggest "gyros"? sr...
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wtanksley@...
May 6, 2000 2:44 am
From: iepos@... [mailto:iepos@...] ... You're also adding the convention that quotation behaves specially when you're quoting a single...
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srenner@...
May 6, 2000 5:52 pm
"Both of these languages which I proposed would have to be written in themselves (although it would be permissable to write the second one in the first). And...
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srenner@...
May 6, 2000 7:41 pm
Here is a code fragment from the VM. MODULE Boxes; Import Out; TYPE Box* = POINTER TO RECORD; VAR next*: Box; PROCEDURE Exec*(stack: BoxStack); END Exec; ...
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peter_easthope@...
May 8, 2000 1:47 am
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iepos@...
May 8, 2000 4:08 am
... Hmm... I'm guessing they mean that there is no _dynamic_ environment of name-value pairs. That is, there are no formal parameters (like "x") of functions...
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iepos@...
May 8, 2000 4:11 am
Hello, folks.... Well, a bit ago I decided to follow Billy's advice and just make a simple interactive environment, and not worry about compilation to ELF and...
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wtanksley@...
May 8, 2000 4:19 pm
From: peter_easthope@... ... Welcome in. ... 2 and 3 are certainly the arguments which + evaluates. However, notice two things: first of all,...
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wtanksley@...
May 8, 2000 6:04 pm
From: iepos@... [mailto:iepos@...] ... Wow, that was quick! In that time I managed to fix a single bug in Omega. ... So it's not an interpreter,...
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srenner@...
May 8, 2000 6:51 pm
In the beginning there was nothing but shallow water. Then a great crocodile appeared and began thrashing his tail. He made the water deeper in some places. In...
