Hey all,
I've been following parrot for a while and finally
decided to try it out. Anyway, I ran into a snag.
Hopefully this is the right place to report this.
Basically, IMCC fails to build on a fresh CVS
checkout because of the dates on the imcparser.c
and imcparser.h files.
Looks like this
On Sun, 20 Jul 2003, Dan Sugalski wrote:
> >It would be entirely possible for Parrot (or a Parrot library) to
> >use AIO at a low level, without introducing interrupts to the VM layer.
> Sure. But what'd be the point? Adding in interrupts allows a number
> of high-performance idioms that aren't
Hey all,
I've been thinking about the "compiling python to
parrot" concept. Right now it looks like the
approach is to start from scratch, but I'm
wondering if it might make more sense to
leverage python itself, at least for now?
Python has a compiler module (written in python
and standard wi
On 24 Jul 2003, Luke Palmer wrote:
> Klass-Jan Stol writes:
> > module, right? I don't know Python, and I've a little experience
> > with IMC, but it seems to me only a new code generator module should
...[snip]
> Well... sortof. It's definitely going to take writing a whole new
> code generato
On Thu, 24 Jul 2003, Joseph F. Ryan wrote:
> I'm not familiar with the Python bytecode spec (to be a little more
> accurate, I'm completely clueless about it), but perhaps something
> similar can be done? Also, another thing to consider is that it
> might be easier to translate python bytecode d
On 28 Jul 2003, Luke Palmer wrote:
> Klass-jan wrote:
> > Maybe it's not possible to have the eval instruction right away, in the new
> > Python->IMC code generator. As long as this command is not used in the code
> > for this new code generator, this can just be skipped, and it may be
> > impleme
Hey all,
Well, I had my first crack at updating
amk's parrot-gen.py for use with imcc.
I'm kind of approaching it slowly, and
going test-first: I started a new file
and am only pulling in code a bit at a
time to pass the next test.
So far all it does is "print" and a
single if/else block bas
On Sun, 27 Jul 2003, Joseph Ryan wrote:
> Benjamin Goldberg wrote:
>
> >[...] the problem isn't that python uses *more* registers than
> >, but rather, that it doesn't use registers at all. Instead,
> >it uses a stack. So, for example, python's add instruction might get
> >translated into the f
Hey all,
I'm trying to get functions working
in python, and I'm not sure the best way
to do this.
What seems natural to me is to define
subroutines in the middle of the code
as I walk the parse tree:
.sub __main__
goto endsub
.sub _f
print ":(\n"
ret
.end
endsub:
On Thu, 31 Jul 2003, Leopold Toetsch wrote:
> You can do that:
> .sub __main__
>bsr _main
>end
> .end
> .sub _main
...
> So you have just to emit code, to call your real main at the beginning.
Well that worked, and even let me get rid of the
endsub label:
.sub __start__
call __main
On Thu, 31 Jul 2003, Brent Royal-Gordon wrote:
> Michal Wallace:
> > I can store all my subroutine definitions in
> > a list or something and then dump them out
> > after the "__main__" routine.
>
> That seems to be the way to do it, speaking as someo
On 31 Jul 2003, Luke Palmer wrote:
> > It now runs amk's euclid.py perfectly now.
> > Do we have a way to compare the speed vs python? :)
> We just modify it to repeat 100,000 times or so, and compare that way.
Oh, duh. :)
> Which I did. Parrot comes in about 3x slower than python on euclid.
>
On Fri, 1 Aug 2003, Dan Sugalski wrote:
> At 11:04 PM +0200 7/31/03, Leopold Toetsch wrote:
> >Luke Palmer <[EMAIL PROTECTED]> wrote:
> >> You mind submitting a patch to put this in the languages/pirate
>
> >I'd appreciate that very much. Pie-thon, here we come ...
>
> As would I. If you're willin
Hey all,
I've got lambda (single-expression anonymous subroutine)
working in pirate now, but I wasn't sure how to get it
to do the correct calling convention with IMCC's "call".
For example, pirate turns this:
print (lambda x: x+1)(0) # prints "1\n"
into this: (the commented line is the i
On Fri, 1 Aug 2003, K Stol wrote:
> > From: "Leon Brocard" <[EMAIL PROTECTED]>
...
> > I don't like things becoming dead-ends. How much work do you think
> > it'd be to extend it some more and update it to latest Lua?
...
> 2: I misdesigned the code generator; that is, at the point where I
> could
On Sun, 3 Aug 2003, K Stol wrote:
> At this moment, I'm looking at a new version of Lua, the previous
> 'pirate' compiled (well, sort of :-) Lua 4 Lua 5 has some features,
> such as coroutines (If I remembered well) and all kinds of neat
> stuff for which Parrot has built-in support (and it droppe
Hey all,
Python objects can have things "in" them:
foo["x"] = "in"
... and it can also have things "on" them:
foo.x = "on"
I noticed lua treats these as the same thing
and got curious about the distinction in IMCC.
Coding it this way seems to work, but I'm
not sure I really understood t
On Sun, 3 Aug 2003, K Stol wrote:
> > What do you think? Want to try squishing pirate/python
> > and pirate/lua together? :)
>
> Yeah, I like the idea. Let's try this out.
Well, I finished reading your report[1] and
posted some of my (rather unorganized) thoughts
up at [2]
It does seem like t
On Tue, 5 Aug 2003, Stephen Thorne wrote:
> > It seems to me that if we want to maximize the
> > number of languages using it, the generic
> > compiler shouldn't depend on anything but
> > C and parrot... But until we get it working,
> > I'd like to stick to a dynamic language like
> > python/perl
After running cvs up -d
and then "make", a bunch of my
tests broke. Here's the problem
boiled down to the simplest case I
can find:
[~/pirate]: cat bug.imc
.sub __main__
$P2 = new PerlInt
$P2 = 1
$P3 = new PerlInt
$P3 = 1
if $P2 == $P3 goto cmp1
c
On Sat, 9 Aug 2003, Sean O'Rourke wrote:
> Remember, the pad depth reflects lexical scope nesting,
> not dynamic scoping. So if you mean "current_depth" as
> "current compile-time depth" above, then you're right,
> but the VM would have no way to tell. If you mean
> run-time depth, which the com
On Fri, 8 Aug 2003, TOGoS wrote:
> I want to be able to have a function with
> this kind of signature:
>
> func ($param1, *$otherparams)
>
> AFAIK, there is no way to implement this
> with the current calling conventions. You
> would have to do something with variable
> register IDs, which we do
On Sat, 9 Aug 2003, Sean O'Rourke wrote:
> The problem is that when adder() gets returned, it
> needs to remember the enclosing pad. So this needs to
> be
>
> newsub $P1, .Closure, _sub1
>
> which (IIRC) will save the lexical environment in which
> it was created (see closure.pmc), then res
On Sat, 9 Aug 2003, Leopold Toetsch wrote:
> Nice coincidence. S. Togos' bug report too.
> Anyway, its already fixed.
Gosh you're quick. Thanks!
Want another one? :)
def g():
return 0
def f():
return g()
print f()
This prints:
'No more I register frame
Just got the parrot calling conventions working for Py-Pirate.
I also wrote a guide that explains how the code is laid out
for people who don't know python:
http://pirate.versionhost.com/viewcvs.cgi/pirate/GUIDE?rev=1.1
Sincerely,
Michal J Wallace
Sabren Enterprises, Inc.
---
perlhash.pod says:
"""
TODO: Steve Fink sayd:
And if there were a keys() method, then 'defined' and 'exists' are
very different. (And there ought to be, and would be if we weren't
all ignoring Leo's iterator proposal.)
I need to read that proposal :-)
"""
Looks like the proposal got acce
Hey all,
Sorry for the huge code listing here, but I don't
have a simpler case. This is what pirate outputs
when it compiles the following program:
def f(x):
if x:
return 1
else:
return 0
print f(1), f(0)
As far as I can tell,
On Mon, 11 Aug 2003, Brent Dax wrote:
> Sean O'Rourke:
> # >* make parrotclass handle "invoke"
> # > this strikes me as the most efficient,
> # > but I'm not really confident with C
> # > so I'm hesitant to try it
> #
> # This seems to me like the way to go, except you might
>
Here's a new test case for t/pmc/sub.t
output_is(<<'CODE', <<'OUTPUT', "set_eh - throw - clear_eh");
print "start\n"
newsub P20, .Exception_Handler, _handler
set_eh P20
new P30, .Exception
throw P30
print "not reached\n"
end
_handler:
clear_eh
print "
On Mon, 11 Aug 2003, Joseph F. Ryan wrote:
> How are you currently throwing/catching exceptions? I think it
> might be much more difficult to create a model that "traps"
> exceptions, rather than setting up code that just "figures out" how
> to handle an exception when it occurs. Both JVM->PIR a
On Sat, 9 Aug 2003, Benjamin Goldberg wrote:
> Michal Wallace wrote:
> [snip]
> > def f():
> > return g()
> [snip]
> > # f from line 3
> > .pcc_sub _sub1 non_prototyped
> > .local object res1# (vi
Just wrapping up an all-night coding spree...
Py-pirate can now handle:
- functions (closures, recursion, etc)
- global variables
- tuples (but they turn into lists)
- dictionaries (create, setitem, getitem, print)
- list comprehensions
- raise (strings only)
- try...except (
On Mon, 11 Aug 2003, Thomas Vesper wrote:
> Michal Wallace wrote:
> > Out of curiosity, why does ~ map to both
> > unary bitwise-not and binary bitwise-xor
> > in imcc?
> >
> > I was expecting xor to be ^ and ^^
>
> See Apocalypse 3 for this.
> ^ was re
Out of curiosity, why does ~ map to both
unary bitwise-not and binary bitwise-xor
in imcc?
I was expecting xor to be ^ and ^^
Sincerely,
Michal J Wallace
Sabren Enterprises, Inc.
-
contact: [EMAIL PROTECTED]
hosting: http://www.cornerhost.com/
my site: http:
On Tue, 5 Aug 2003, Dan Sugalski wrote:
> The original thought was to use the new perl 6 grammar engine/code
> to do this, but I think it'll be a while before that's ready to go.
I think perl6 is definitely the way to go, once it's ready.
BTW, what's the deal with Bundle::Perl6? I tried installi
On Tue, 5 Aug 2003, Joseph Ryan wrote:
> >Okay, I don't have a good syntax in mind yet,
> >the point is it's a template language and you
> >can subclass/override/extend the template.
> >Maybe there's no syntax and it just uses
> >cleanly coded classes in some oo language.
> >Or perl6 with it's g
On Sat, 9 Aug 2003, Leopold Toetsch wrote:
> As calling conventions clearly state, that the caller has to save
> everything, its probably up to imcc/pcc.c to insert above statements, if
> another sub gets called from a sub. I'll fix that in a minute ;-)
I just synced up with cvs and now everyth
On Tue, 5 Aug 2003, Piers Cawley wrote:
> Approaching Python
> Discussions (and coding) of the Parrot implementation of Python
> continued this week. Michal Wallace is working on taking a preexisting
> (but incomplete, it's a proof of concept only) python parse tr
On Mon, 11 Aug 2003, Leopold Toetsch wrote:
> No, the exception object isn't around anymore in the handler, so you
> don't C there.
>
> This could of course be just my wrong implementation.
No, it makes sense. You wouldn't want an exception in
the catch: block to trigger an infinite loop.
But i
This is just a question I've been wondering about,
that I think could be a huge PR sell for parrot
in the python world if the answer is "yes".
Could you serialize a parrot function?
In other words, if you interactively define a
function at the prompt, could you save it to
disk? (not the source
On Tue, 12 Aug 2003, Leopold Toetsch wrote:
> > ... So I'm trying to decide between two
> > approaches:
>
> 3) wait until classes and objects are done ;-)
4) simulate an object system with closures :)
I wound up getting a couple C books today. I'm
trying to see what I can do about wrapping
PyO
On Sun, 10 Aug 2003, Vladimir Lipskiy wrote:
> > Seems to be related with the multiple freeing reported by Michael.
>
> I thought his name was Michal (:>8
yes, I was born without an e. :)
Sincerely,
Michal J Wallace
Sabren Enterprises, Inc.
-
contact: [EMAI
Hey all,
I'm just starting to get into using pads,
and I'm not sure I understand new_pad.
Specifically, why does it take an int?
It seems to me, that 9 times out of 10,
you're going to want to create a new
pad at the next lower depth than the
one before.
So, two questions:
1. Should there b
On Thu, 7 Aug 2003, Dan Sugalski wrote:
> > haskell_parser -> ast -> pirate -> parrot_code --> imcc -> pbc
> > ^
> > |
> > parrot_code__templates
> >
> >
> >S
On Fri, 8 Aug 2003, TOGoS wrote:
> Unprototyped :-) I guess I didn't make that quite
> clear, enough.
Nah, you did. I just didn't think about it... :)
I think I see the problem now.
> maybe this kind of unprototyped function is expected
> to be uncommon enough that we can put up with having
On Tue, 12 Aug 2003, Michal Wallace wrote:
> I wound up getting a couple C books today. I'm
> trying to see what I can do about wrapping
> PyObject as a PMC...
What's the secret to making parrot recognize
a new PMC? I've got my .pmc file but I'm
not sure what to do n
Here is how I usually trigger a generic exception
in python:
>>> raise hell
Traceback (most recent call last):
File "", line 1, in ?
NameError: name 'hell' is not defined
Unfortunately, I can't seem to trap that in parrot,
because a find_lex failure isn't an exception.
Or am I
On Sun, 10 Aug 2003, Leopold Toetsch wrote:
> Piers Cawley <[EMAIL PROTECTED]> wrote:
> > Leopold Toetsch <[EMAIL PROTECTED]> writes:
> >> As calling conventions clearly state, that the caller has to save
> >> everything, its probably up to imcc/pcc.c to insert above
> >> statements, if another su
The following code segfaults immediately.
If you uncomment the second line (print "")
it works.
However, if you then uncomment the #non_prototyped
keyword in _depth1, it segfaults immediately again.
When I say it segfaults immediately, I mean that
the initial 0 is not printed.
(Should I be rep
"raise hell" is working great
with the new find_lex exceptions. Thanks! :)
Any plans to to add pow for PMC's?
What about separate ops for floor/true division?
http://www.python.org/doc/2.2.1/whatsnew/node7.html
Sincerely,
Michal J Wallace
Sabren Enterprises, Inc.
On Fri, 15 Aug 2003, Leopold Toetsch wrote:
> When we have more classes like a Python hierarchy, we will see, how and
> how far the functionality does match. If we find some, we can put in an
> intermediate ParrotScalar.
I was thinking about this earlier today. Once dynamic
PMCs are working, Perl
On Fri, 15 Aug 2003, Leopold Toetsch wrote:
> PS: have a look at the rather new C opcode in PIR ;-)
Cool! :)
Sincerely,
Michal J Wallace
Sabren Enterprises, Inc.
-
contact: [EMAIL PROTECTED]
hosting: http://www.cornerhost.com/
my site: http://www.withoutane.
Uh-oh. I just went to implement "del x"
and there's no op to remove a variable
from a lexical pad! :)
Sincerely,
Michal J Wallace
Sabren Enterprises, Inc.
-
contact: [EMAIL PROTECTED]
hosting: http://www.cornerhost.com/
my site: http://www.withoutane.com/
---
Just tried out Kenneth Grave's yield stuff --
it works great!
But shouldn't .pcc_begin_yield and .pcc_end_yield
do "saveall" and "restoreall", respectively?
Is there a case where we wouldn't want this?
Sincerely,
Michal J Wallace
Sabren Enterprises, Inc.
I said:
> But shouldn't .pcc_begin_yield and .pcc_end_yield
> do "saveall" and "restoreall", respectively?
>
> Is there a case where we wouldn't want this?
Yes, because for python anyway, I also need to
put pop_pad in there:
saveall
pop_pad
.pcc_begin_yield
.return whatever
.pcc_en
It seems that exception handlers get tied to
subroutines when they're created, not when
they're actually used. For example:
## this works:
try:
f = make_function()
f.die() # raise some error
except:
pass
## this does not work:
f = make_function()
On Sat, 16 Aug 2003, Leopold Toetsch wrote:
> I have put in scratchpad_delete
>
> peek_pad P0
> delete P0["foo"]
>
> deletes names only.
Thanks! works great!
Sincerely,
Michal J Wallace
Sabren Enterprises, Inc.
-
contact: [EMAIL PROTECTED]
hosting:
I expected getprop to behave like find_lex
and throw an exception if the property doesn't
exist, but it doesn't:
.sub _main
.local object Class
.local object setv
.local object getv
Class = new ParrotClass
setv = new PerlString
setv = "value\n"
setprop Class, "name", setv #
On Sat, 16 Aug 2003, Sean O'Rourke wrote:
> Michal Wallace <[EMAIL PROTECTED]> writes:
> > I expected getprop to behave like find_lex
> > and throw an exception if the property doesn't
> > exist, but it doesn't:
>
> Are you sure that propert
Tadaa!
Okay. I've done (almost) everything I can
do for python without jumping into C.
So here's a release!
http://pirate.tangentcode.com/
Check out the generator-based microthreads
demo. :) It's horribly slow, but it works!
And note the PARROT_INLINE function - a
nice little touch, I thou
On Sat, 16 Aug 2003, Sean O'Rourke wrote:
> Michal Wallace <[EMAIL PROTECTED]> writes:
>
> > Tadaa!
>
> /me blinks at the list comprehensions.
:)
> Cool stuff. test_microthreads failed for
> some reason I still need to look into, but
> there's a
I haven't looked into this at ALL, but I was
curious about the IMCC optimization flags:
[~/pirate]: ./pirate.py -d weightless.py > weightless.imc
[~/pirate]: parrot weightless.imc
ended with: L 450
total time: 23
[~/pirate]: parrot -O=1 weightless.imc
ended with: L 450
total time: 22
[~/
On Sun, 17 Aug 2003, Benjamin Goldberg wrote:
> Michal Wallace wrote:
>
> > Uh-oh. I just went to implement "del x"
> > and there's no op to remove a variable
> > from a lexical pad! :)
>
> Why would you want to remove a variable from a lexical pad?
On Sun, 17 Aug 2003, Luke Palmer wrote:
> Benjamin Goldberg writes:
> > Hmm... I just thought of something. Since 'set' semantics can be easily
> > simulated when we have only ops for 'assign' semantics, maybe imcc
> > itself could do this for us.
> >
> > That is, by default,
> >$P0 = $P1 +
On Mon, 18 Aug 2003, Benjamin Goldberg wrote:
> > Hmm. Do you mean
> >
> > if for stmt in block:
> > if stmt.type == undef:
> > flag_as_going_to_delet(stmt.varname)
> >
> > So I can create a new pad when it's assigned?
>
> Right. You'd create a new pad just before the "for", and
On Wed, 20 Aug 2003, Tom Locke wrote:
> I am currently embarking on a project to create a new language. Right now
> I'm in the process of selecting the platform that's going to give me the
> best starting point.
>
> My first choice is whether to go for a VM, or a C-Python style
> implementation.
On Thu, 21 Aug 2003, Tom Locke wrote:
(not sure who you're quoting here... dan I think)
> > > But Parrot has continuations. Doesn't this gives me (cooperative)
> > > microthreads? (with a little work on my part).
> >
> > Sure...
>
> So these would be real cheap right? Time and space overheads si
On Thu, 21 Aug 2003, Benjamin Goldberg wrote:
> I hope you aren't planning on serializing just a single isolated
> microthread... that wouldn't work well with what I've got in mind due to
> how much stuff comes along when you serialize a continuation -- you'd
> get almost the whole interpreter ser
On Fri, 22 Aug 2003, Benjamin Goldberg wrote:
> Michal Wallace wrote:
> >
> > On Thu, 21 Aug 2003, Benjamin Goldberg wrote:
> >
> > > If you want, instead, to serialize interpreter->microthreads,
> > > however... well, you'd *still* get almost the
On Sun, 24 Aug 2003, Benjamin Goldberg wrote:
> Togos wrote:
> >
> > What's the reasoning behind putting the object a
> > method is being called on in P2 instead of in the
> > first parameter of the method? I have a feeling that
> > putting it as the first parameter of the method would
> > make t
On Sun, 24 Aug 2003, Leopold Toetsch wrote:
> We have two kinds of file/line information: Parrot source and HLL
> source. So the C<.currentline> macro needs duplication or an argument
> specifying, which source it should denote.
And when parrot throws an error and complains about line 5,
which o
On Sun, 7 Sep 2003, Leopold Toetsch wrote:
> I'm currently investigating the AST (abstract syntax tree) interface
> for Parrot. For getting a feeling, how this could look like, I've
> implemented (some parts) of Yet Another Language (YAL).
I like it. What is this written in? C or Perl or what?
If
On Fri, 19 Sep 2003, Nicholas Clark wrote:
[talking about dynamically intering the debugger]
>
> Can anyone see a sane way to do it?
>
> Better still, can anyone see a viable way to do it on perl5?
Python does this. There's basically a hook after every
statement, and you can put whatever you wan
Sorry, I've been following this list
with one eye tied behind my back...
What happened to setline? Should I
emit something else instead?
Sincerely,
Michal J Wallace
Sabren Enterprises, Inc.
-
contact: [EMAIL PROTECTED]
hosting: http://www.cornerhost.com/
m
On Mon, 6 Oct 2003, Melvin Smith wrote:
> In an attempt to get a handle on what the status is of all the
> language compilers we have (in various states) I added
> a file called LANGUAGES.STATUS under parrot/languages
>
> Just read the file and it explains itself. Please, if you are
> the author
On Wed, 3 Dec 2003, Leopold Toetsch wrote:
> Dan Sugalski <[EMAIL PROTECTED]> wrote:
> > At 12:17 PM +0100 12/3/03, Leopold Toetsch wrote:
>
> >>Create an Exception class hierarchy?
>
> > I'm not 100% sure I want to go with a real OO style of exceptions,
> > but that might just be the neo-luddit
Is it possible to print out the line number
of the bad instruction when parrot encounters
an error and fails? I'm trying to get my
generated code to work with the latest version
of pirate and I'm having to rely on "GOT THIS FAR"
print statements to find the lines that are
giving me errors.
I
Looking more at exceptions here... I
used to be able to put arbitrary
stuff in the _message slot of a
ParrotException... Now we can only use
strings. Is that permanent?
PythonException will need to be able
to hold an arbitrary python object.
I'm faking it by stuffing my PMC into
a string regis
On Tue, 2 Dec 2003, Dan Sugalski wrote:
> *) Creating new objects involves calling the ->init vtable entry *on
> the class*. Because of this each class gets a custom vtable where the
> init method has been swapped out for one (from objects.c) that
> creates a new object instead.
Well, cool! How d
On Wed, 7 Jan 2004, Luke Palmer wrote:
> Should go something like this:
>
> .sub _main
> .local object Cat
> .local object felix
> newclass Cat, "Cat"
> find_type $I0, "Cat"
> felix = new $I0
> # ...
> .end
Thanks, but that doesn't work eit
On Wed, 7 Jan 2004, Luke Palmer wrote:
> Er, sorry, that's IMCC's fault. This works:
>
> new felix, $I0
Yep! Thanks!
Here's a short example of the final script:
.sub _main
.local object Cat
.local object felix
newclass Cat, "Cat"
find_type $I0, "Cat"
new felix, $I0
$P0 =
On Thu, 8 Jan 2004, Leopold Toetsch wrote:
> Michal Wallace <[EMAIL PROTECTED]> wrote:
>
> > I'm not even trying to get objects working yet. I just
> > need something that'll let me run setprop on it
>
> You can attach properties to all PMCs. And WRT obj
On Thu, 8 Jan 2004, Leopold Toetsch wrote:
> Michal Wallace <[EMAIL PROTECTED]> wrote:
>
> > What exactly is the difference between an
> > attribute and a property?
>
> $ perldoc docs/pdds/pdd15_objects.pod
> /TRANSLATION AND GLOSSARY
Thanks. Don't mind me.
Luke Palmer wrote:
> This patch re-implements the register backing stacks as PObjs (so
> they can be garbage-collected), honors their COW flags, and adds
> them to the interpreter context (where they should be, honest!).
>
> As a healthy side-effect, it encapsulates their behavior nicely into
>
I love the new syntax for calling functions!
Thanks Melvin!!!
And... here's a weird bug. :)
The following code fails with the message
"No Entries on UserStack!" But, if you
delete either/both of the empty comment
lines and it works fine. :)
.sub _main
$P0 = new PerlString
$P0 = "hello
#!/bin/env parrot
#
# yieldbug.imc
#
# This program should print dots forever.
# Instead it prints a few dots and then segfaults.
#
# parrot -t shows this bug:
#
#parrot: src/stacks.c:95: stack_height:
#Assertion `height == (top->n_chunks - 1) * 256 + top->used' failed.
#Aborted
#
# It
On Thu, 8 Jan 2004, Luke Palmer wrote:
> @pcc_sub_call_4:
> set P0, P17
> set P1, P16
> set I0, 0
> set I1, 0
> set I2, 0
> set I3, -2
> updatecc
> savetop
> invoke
> done:
> restoretop
> set P16, P5
>
> When t
Hey all,
When you invoke a Coroutine, it calls swap_context()
from src/sub.c ... There's an else clause in there
that either swaps or restores theinterpreter stack,
but as far as I can tell, swap_context() is ONLY
called when entering a coroutine - not when we're
suspending it. That means all so
On Fri, 9 Jan 2004, Jeff Clites wrote:
> On Jan 9, 2004, at 12:24 AM, Leopold Toetsch wrote:
>
> > Michal Wallace <[EMAIL PROTECTED]> wrote:
> >> #!/bin/env parrot
> >> #
> >> # yieldbug.imc
> >> #
> >> # This program should p
On Fri, 9 Jan 2004, Leopold Toetsch wrote:
> Michal Wallace <[EMAIL PROTECTED]> wrote:
>
> > newsub $P1, .Continuation, done
>
> For returning just use a .RetContinuation. Or still better, just omit
> $P1 totally here:
>
> > .pcc_call $P0, $P1
Aha
On Fri, 9 Jan 2004, Luke Palmer wrote:
> Very rarely would you not savetop before creating a *real* continuation.
> But again, very rarely would you actually create a *real* continuation
> (depending on your language). RetContinuations are almost always a
> better choice for traditional languages
On Fri, 9 Jan 2004, Leopold Toetsch wrote:
> Michal Wallace <[EMAIL PROTECTED]> wrote:
>
> > Hey all,
>
> > When you invoke a Coroutine, it calls swap_context()
>
> Can you have a look at imcc/t/syn/pcc.t, there is an coroutine
> iterator test.
Yep, it h
On Sun, 11 Jan 2004, Leopold Toetsch wrote:
> Michal Wallace <[EMAIL PROTECTED]> wrote:
> > When you invoke a Coroutine, it calls swap_context()
> > from src/sub.c ... There's an else clause in there
> > that either swaps or restores theinterpreter sta
On Mon, 12 Jan 2004, Luke Palmer wrote:
> I have somewhat a predicament. I want to create a continuation, and
> have that continuation stored in the register stack that it closes
> over (this is how I'm implementing a loop with continuations).
> Unless I'm having a major braino, I don't think thi
On Mon, 12 Jan 2004, Luke Palmer wrote:
> Michal Wallace writes:
> > On Mon, 12 Jan 2004, Luke Palmer wrote:
> >
> > > I have somewhat a predicament. I want to create a continuation, and
> > > have that continuation stored in the register stack that it c
On Mon, 12 Jan 2004, Luke Palmer wrote:
> > Well... A Coroutine is a pausable, resumable continuation, right?
> > Or basically a closure with a continuation inside it.
>
> Both of those sentences seem wildly redundant to me. I think we might
> be stuck on vocabulary. We're surely both understand
On Fri, 16 Jan 2004, Dan Sugalski wrote:
> 2) Those that explicitly check for events
...
> Ops like spin_in_event_loop (or whatever we call it) or checkevent is
> in category two. They check events because, well, that's what they're
> supposed to do. Compilers should emit these with some frequen
On Fri, 16 Jan 2004, Dan Sugalski wrote:
> >I don't understand that part. Why the compiler?
>
> Because we don't have the sort of control of the async environment
> that hardware does to deal with interrupts.
>
> And, realistically, all code has to deal with the possibility of
> interrupts. Even
Hi all,
I'm hoping this is just a simple linker option, but
I've been reading "ld" manuals for the past few
hours and I just don't get it. :)
I'm trying to make a dynamically loaded PMC that
subclasses another dynamically loaded PMC.
I made two files in parrot/dynclasses/ :
// file 1: pisequen
On Thu, 22 Jan 2004, Leopold Toetsch wrote:
> Michal Wallace <[EMAIL PROTECTED]> wrote:
>
> > I'm trying to make a dynamically loaded PMC that
> > subclasses another dynamically loaded PMC.
>
> Its a linker problem, but not too simple. Your analysis is c
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