Where's the no-op?
I think I might have gotten my x86-64 code generator up in the most minimal sense possible. I managed to build parrot in such a way that it used my own JIT implementation. I implemented Parrot_noop along with Parrot_jit_normal_op. My plan was to test some noop's first before opening up to all benchmarks to test Parrot_normal_op. Unfortunately, I discovered Parrot doesn't have a no-op in the pasm syntax! I'm going by the pasm document on parrotcode, and I'm not seeing it there. I did a recursive grep of the parrot docs looking for noop, no-op, and no op, but didn't see anything indicating I could actually write some noops in pasm. Am I missing something here? On the positive side, it looks like Parrot_jit_normal_op actually works, since the hanoi.pasm file ran. I'd be impressed if the couple hundred lines of code I wrote were perfectly fine--having managed to figure out how to compile the jit_emit.h file!
In need of somebody who wrote a jit_emit.h implementation
I've been slowing banging away at an x86_64 code generator. I'm just trying to get the basics down for now, generating NOP's; but even that's nontrivial. While compiling my code additions into Parrot, I've been running into this and that. This function is redefined a million times, while that one isn't defined at all. While redefined functions are likely from some stupidity I missed, it looks like I am outright missing important functions just to get the basic code generation working. I'm hoping somebody that wrote a jit_emit.h implementation for one of the architectures could help me deduce some of my errors so that I can get rolling. My intended focus was in generating all the opcodes and filling in as many of the JIT routines as possible. So far, it's been a chore just getting a framework in place. I don't want to burden the mailing list with the little particulars. I'll respond better to direct emails at adam.preble (at) gmail.com -- I've been getting swamped with spam on this account recently. If somebody is more willing to hang around IRC instead, then I will catch them there instead.
Re: Perl 6 and Parrot VM presentation slides
Post them anyways.
We have a Frenchman in my group that would normally be able to translate.
However, he is on vacation (holiday?) in France and might not be back in time
for the presentation. I'll take the slides anyway and see what magic I can
attempt. I know somebody I suspect grew up in Quebec who might help.
Quoting chris [EMAIL PROTECTED]:
I have power point slides I did use for a course on parrot machine and
assembly language for my students. With many examples.
They are in french. I can send you the file if you want.
-- __
\|||/
(o o)
+--ooO-( )-Ooo--+
| Christian Aperghis-Tramoni |
| |
| Case Postale 901 Tel : (33) 04 91 82 92 49 |
| 163 Avenue de Luminy SFR : (33) 06 18 93 10 70 |
| 13288 Marseille Cedex 09 Fax : (33) 04 91 82 92 75 |
| FranceMel : [EMAIL PROTECTED] |
/) [EMAIL PROTECTED](Ä
/ ) WEB : http://www.dil.univ-mrs.fr/~chris ( Ä
( (+---+) )
((\ \) / ) / ) (/ //)
(\\\ \_/ /\ \_/ ///)
\ /\ /
___\___/__\___/
print join('',map({$i=1-$i;$a=$i?10*$_.\b\b:packc,$a+$_+0x16}split
(//,5110789279758710838810587992861093898779948387799310)),...\n);
___
Re: Perl 6 and Parrot VM presentation slides
Quoting Jens Rieks [EMAIL PROTECTED]: On Tuesday 24 May 2005 07:13, [EMAIL PROTECTED] wrote: I am curious if there are any recent slides and notes for recent talks about Perl 6, language, how it will work, and the same for Parrot. I've caught a few old slides from almost a year ago for a few things, but not much. I am preparing a little presentation over here, and I'm trying to determine if I'm missing anything important worth presenting. Slides and notes would also be a concise way to catch up on details I think I'm missing -- particularly the VM details. I'am preparing a (german) presentation about Perl6, for the austrian perl workshop. The basic outline should be ready within the next few days, I can then mail you a copy if you want; it has nothing todo with parrot's VM, though. There are two other perl 6 presentations at http://svn.openfoundry.org/pugs/docs/talks/ Perl 6 The Ultimate (Chinese) by Autrijus Tang and Perl 6, genau jetzt! (German) by Ingo Blechschmidt. I distinctly get the impression that I'm on of the few dumb Americans participating in all this. So far, there hasn't been a single English-language presentation offered. Anyhow, I know somebody who can translate German, and a few that could translate Chinese. I'll see what they can manage with these files. However, I'm completely unfamiliar with the .spork format, and I'm fraid of what google will tell me it is.
Perl 6 and Parrot VM presentation slides
I am curious if there are any recent slides and notes for recent talks about Perl 6, language, how it will work, and the same for Parrot. I've caught a few old slides from almost a year ago for a few things, but not much. I am preparing a little presentation over here, and I'm trying to determine if I'm missing anything important worth presenting. Slides and notes would also be a concise way to catch up on details I think I'm missing -- particularly the VM details.
Building an incomplete code generator into Parrot
Well I started the AMD64 code generator. I don't have much available yet -- just enough for what seems to be necessary to run anything at all. Parrot_jit_begin makes calls to MOV instructions that are implemented, and I have a NOP implemented. Is this the bare minimum? I was hoping for some insights into how I can incorporate this into a build and get the VM to recognize my code generator for trivial test programs I want to send it. I haven't been able to test if any of this works yet. As of right now, I still have the i386 code.jit file, and I don't know how that works when I don't have all the requisite instructions implemented. Can the core.jit only list the opcodes I currently support? Do I need stubs for all the opcodes?
Re: I wish to understand the JIT machine code generator
Quoting Leopold Toetsch [EMAIL PROTECTED]: [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: I have been trying to examine the i386 code generator to see how feasible it would be to create an AMD64 code generator. Unfortunately, the code is uncommented, and I haven't yet found any documentation to explain how it works on Parrot. So far I've determined there's relevant stuff in jit/i386. I don't understand the .jit extension on core.jit. Is that not actually heavily templated C code? jit/*/jit_emit.h defines basically a bunch of macros that emit opcodes. There are additionally some interface functions like Parrot_jit_begin(), Parrot_jit_normal_op and the register move functions called from src/jit.c to copy registers from Parrot to CPU and back. i386 has additional code to emit NCI stubs and direct vtable calls, which all is optional. docs/jit.pod has some more details on the interface functions. The format of jit/*/core.jit is also covered by doc/jit.pod. It defines JITted opcode functions which, when called by the code generator in src/jit.c, emit code for the function. It makes use of templates to generate the final code in src/jit_cpu.c and src/exec_cpu.c. Please have a look at these generated files and the docs. If there are some more questions, please just ask. leo Thank you. The POD is a little thick, and I'll be printing it out so I can follow along. I'm going to copy the i386 path to an a64 path and have at it. I'm hoping it won't be much of a stretch to get 64-bit code generated -- although REASONABLE 64-bit code is another problem. But first I want to ask if anybody else is doing this already. I don't know what I'm getting myself into, other than at least modifying ~5,000 lines of code.
I wish to understand the JIT machine code generator
I have been trying to examine the i386 code generator to see how feasible it would be to create an AMD64 code generator. Unfortunately, the code is uncommented, and I haven't yet found any documentation to explain how it works on Parrot. So far I've determined there's relevant stuff in jit/i386. I don't understand the .jit extension on core.jit. Is that not actually heavily templated C code? I'm curious if there's other sources to study. Preferably, I'd like to get some advice on how to study this code generator so I can at least improve it. I'd prefer to become knowledgeable enough to add an AMD64 generator sometime. However, I'll gladly advise only if somebody has already started it.
