Richard Jones schrieb:
Diez B. Roggisch wrote:
Python has no notion of pointers
See:
http://docs.python.org/lib/module-ctypes.html
In particular:
http://docs.python.org/lib/ctypes-pointers.html
Certainly cool, yet not too helpful for writing an interrupt handler
that needs
jtauber schreef:
see http://cleese.sourceforge.net/
There is not much to see there, most of the wiki is filled with spam...
--
JanC
Be strict when sending and tolerant when receiving.
RFC 1958 - Architectural Principles of the Internet - section 3.9
--
Huh? I'm just baffled why you think writing a scheduler in an OS is
harder than writing one in an application. You have some means of
doing a coroutine switch in one situation, and some means of doing a
hardware context switch in the other. Aside from that the methods are
about the same.
Roose [EMAIL PROTECTED] writes:
Well, then of course you know I have to say: An OS does not run inside a
browser. There's a sentence I never thought I'd utter in my lifetime.
So that is an irrelevant example, since it obviously isn't a task scheduler
in the context of this thread.
Huh?
Roose wrote:
...
I was thinking that there would be a Lisp interpreter in a kernel,
which afaik doesn't exist.
There's an implementation of scheme that runs as a kernel module in
Linux - it's designed to allow people to experiment with exploring
kernel data structures at run time, and other
Arich Chanachai wrote:
Paul Rubin wrote:
Roose [EMAIL PROTECTED] writes:
Lots of bickering and just plain good sport snipped out
What I really wonder about is the possibility of integrating Mono with a
kernel and building upward (the shell if you will) using IronPython.
--
Paul Rubin http://[EMAIL PROTECTED] wrote in message
news:[EMAIL PROTECTED]
Roose [EMAIL PROTECTED] writes:
Are you actually going to answer any of my questions? Let's see
this JavaScript task scheduler you have written!
I wrote it at a company and can't release it. It ran inside a
John Roth wrote:
jtauber [EMAIL PROTECTED] wrote in message
news:[EMAIL PROTECTED]
My experiment, Cleese, was making progress before I got distracted by
other things.
I should probably get back to it at some stage.
As my ex-wife was fond of saying, I wish you'd have
told me it was
Roose wrote:
It's a difference of degree, but an important difference. I haven't looked
at Linux or Windows NT source, but my guess is the assembly used is just
small functions for accessing special CPU instructions for atomicity,
context switching, and the like.
I KNOW they don't have huge
Paul Rubin wrote:
...
OK, then give me an example of Lisp OS that runs on a PC. I would like to
install it on my PC tomorrow. Or maybe my Mac. That was your whole point,
originally, that since it could be done in Lisp, why not Python?
Huh? That's a non-sequitur, nothing prevents you from
I've written file systems in Python, and task schedulers in
Javascript, and they were fine for their purposes
Uh, not to be rude, but what are you talking about? If I'm not mistaken
Javascript is that scripting language that runs inside a browser, an
application. How are you going to save and
Roose [EMAIL PROTECTED] writes:
I've written file systems in Python, and task schedulers in
Javascript, and they were fine for their purposes
Uh, not to be rude, but what are you talking about? If I'm not mistaken
Javascript is that scripting language that runs inside a browser,
Paul Rubin wrote:
Roose [EMAIL PROTECTED] writes:
...
Upon reading back in the thread I see that you mean compiled Lisp,
no? I was thinking that there would be a Lisp interpreter in a
kernel, which afaik doesn't exist.
Yes, compiled Lisp. There are Python compilers too.\
??? You mean
Arich Chanachai [EMAIL PROTECTED] writes:
Yes, compiled Lisp. There are Python compilers too.\
??? You mean like Pyrex or some such? I wouldn't exactly call these
Python compilers, as that kind of obscures some underlying
(critical) facts.
Also psyco. And I think Pypy is currently set
Paul Rubin http://[EMAIL PROTECTED] wrote in message
news:[EMAIL PROTECTED]
Roose [EMAIL PROTECTED] writes:
I've written file systems in Python, and task schedulers in
Javascript, and they were fine for their purposes
Uh, not to be rude, but what are you talking about? If I'm not
Roose [EMAIL PROTECTED] writes:
Are you actually going to answer any of my questions? Let's see
this JavaScript task scheduler you have written!
I wrote it at a company and can't release it. It ran inside a
browser. There was nothing terribly amazing about it. Obviously the
tasks it
Paul Rubin wrote:
Arich Chanachai [EMAIL PROTECTED] writes:
Yes, compiled Lisp. There are Python compilers too.\
??? You mean like Pyrex or some such? I wouldn't exactly call these
Python compilers, as that kind of obscures some underlying
(critical) facts.
Also psyco.
Directly
Arich Chanachai [EMAIL PROTECTED] writes:
And I think Pypy is currently set up to compile Python
into Pyrex and then run the Pyrex results through GCC.
But of course, who's going to argue that Pyrex produces compiled
Python?
Pyrex produces compiled Python in the same sense that asm
But I thought Python was an all-purpose language. After all, OS's
have been written in Lisp before too.
It is a general purpose APPLICATION language. I am surprised that this
hasn't been mentioned on this thread.
An OS is NOT an application. It is a completely different kind of program.
Do
Roose [EMAIL PROTECTED] writes:
An OS is NOT an application. It is a completely different kind of program.
Do you guys understand the difference between user and kernel mode? Do you
know what address spaces and hardware interrupts are? Python is not
equipped to handle these things. You
So how would I make an OS Shell?
--
http://mail.python.org/mailman/listinfo/python-list
Paul Rubin wrote:
When Unix was first written, people thought implementing an OS in C
was ludicrous. Everyone knew OS's had to be written in assembler.
Actually, when Unix was first written that belief was entirely
correct, and OSes *did* have to be written in assembler.
That is, pure C did not
Peter Hansen wrote:
Paul Rubin wrote:
When Unix was first written, people thought implementing an OS in C
was ludicrous. Everyone knew OS's had to be written in assembler.
Actually, when Unix was first written that belief was entirely
correct, and OSes *did* have to be written in assembler.
Is an OS written in Lisp also ludicrous? Because it's been done.
Can you point me to this? I'd like to see how truly Lisp it is.
My first guess would be -- not very. And I'd like to install it on my PC.
--
http://mail.python.org/mailman/listinfo/python-list
Well can you describe what kind of things you want to do exactly?
My guess is you are not out to develop a new algorithm for virtual memory or
task scheduling.
There are many parts to an OS shell. An example is the command line, i.e.
bash and the like in Unix, and cmd.exe in Windows. In
My experiment, Cleese, was making progress before I got distracted by
other things.
The approach was a micro-kernel in C made up of the CPython bytecode
interpreter with the file-related calls to libc ripped out and some
bare-metal port read/writes and memory operations exposed to Python as
Roose [EMAIL PROTECTED] writes:
Is an OS written in Lisp also ludicrous? Because it's been done.
Can you point me to this? I'd like to see how truly Lisp it is.
http://en.wikipedia.org/wiki/Lisp_machine
My first guess would be -- not very. And I'd like to install it on my PC.
Although
On Sat, 08 Jan 2005 08:28:12 GMT, Roose [EMAIL PROTECTED] wrote:
I am not trying to be insulting... but unless someone would like to educate
me otherwise, the idea of an OS written in Python is almost ludicrous. As I
said, I think you might mean an OS SHELL, which would be a reasonable
(although
Paul Rubin:
Lately there are people trying to program PC's to
simulate the Lisp hardware and to get the Lisp Machine software
released (now that the commercial market for it has long since dried
up). However, both of those projects have a ways to go.
There's a video of someone demoing how to
On Sat, 08 Jan 2005 12:47:52 -0500, Peter Hansen [EMAIL PROTECTED] wrote:
Paul Rubin wrote:
When Unix was first written, people thought implementing an OS in C
was ludicrous. Everyone knew OS's had to be written in assembler.
Actually, when Unix was first written that belief was entirely
Bengt Richter [EMAIL PROTECTED] wrote in message
news:[EMAIL PROTECTED]
On Sat, 08 Jan 2005 12:47:52 -0500, Peter Hansen [EMAIL PROTECTED]
wrote:
Paul Rubin wrote:
When Unix was first written, people thought implementing an OS in C
was ludicrous. Everyone knew OS's had to be written in
jtauber [EMAIL PROTECTED] wrote in message
news:[EMAIL PROTECTED]
My experiment, Cleese, was making progress before I got distracted by
other things.
The approach was a micro-kernel in C made up of the CPython bytecode
interpreter with the file-related calls to libc ripped out and some
bare-metal
OK I've heard of that. But the original poster didn't ask to make a Python
machine and then a Python OS.
My point was that you can't do a lot of hardware interface programming in
pure Python -- there would be so much non-trivial code in C that it would be
hard to call it a Python OS.
So this
On Sat, 8 Jan 2005 21:29:47 -0600, John Roth [EMAIL PROTECTED] wrote:
Bengt Richter [EMAIL PROTECTED] wrote in message
news:[EMAIL PROTECTED]
On Sat, 08 Jan 2005 12:47:52 -0500, Peter Hansen [EMAIL PROTECTED]
wrote:
Paul Rubin wrote:
When Unix was first written, people thought implementing
Paul Rubin http://[EMAIL PROTECTED] wrote in message
news:[EMAIL PROTECTED]
Roose [EMAIL PROTECTED] writes:
My point was that you can't do a lot of hardware interface programming
in
pure Python -- there would be so much non-trivial code in C that it
would be
hard to call it a Python OS.
In message [EMAIL PROTECTED], Christopher
Koppler [EMAIL PROTECTED] writes
Still, Java feels like C++ done right, while being more wrong :-[
Couldn't disagree more. Just about anything you want to do that is
low-level, is impossible in Java. Anyway this is off-topic.
Stephen
--
Stephen Kellett
In message [EMAIL PROTECTED], Arich
Chanachai [EMAIL PROTECTED] writes
think). Or what about D?
Digital Mars have a D compiler.
http://www.digitalmars.com
Stephen
--
Stephen Kellett
Object Media Limitedhttp://www.objmedia.demon.co.uk
RSI Information:
[EMAIL PROTECTED] (Michael Hobbs) writes:
The problem when using Python instead of C for OS development is that
C was *specifically designed* to create an OS, while Python was designed
for completely different purposes. If you want to write an OS, it would
be wise to use a language that is
On Fri, 07 Jan 2005 16:34:48 -, [EMAIL PROTECTED] (Michael Hobbs) wrote:
David Brown [EMAIL PROTECTED] wrote:
Hello. I recently came across a free operating system called Unununium (or
something like that) and it was developed in Python and Assembly.
Now, I have been looking for a way to
Paul Rubin wrote:
[EMAIL PROTECTED] (Michael Hobbs) writes:
The problem when using Python instead of C for OS development is that
C was *specifically designed* to create an OS, while Python was designed
for completely different purposes. If you want to write an OS, it would
be wise to use a
Arich Chanachai [EMAIL PROTECTED] writes:
But I thought Python was an all-purpose language. After all, OS's
have been written in Lisp before too.
Pure Lisp? Or a Lisp/C/Asm combo? Lisp has a compiled flavor by the way.
Compiled flavor? Lisp has been compiled since the 1950's.
No,
Paul Rubin wrote:
Arich Chanachai [EMAIL PROTECTED] writes:
But I thought Python was an all-purpose language. After all, OS's
have been written in Lisp before too.
Pure Lisp? Or a Lisp/C/Asm combo? Lisp has a compiled flavor by the way.
Hello. I recently came across a free operating system called Unununium (or
something like that) and it was developed in Python and Assembly.
Now, I have been looking for a way to make an operating system for a long
long time and the only possibilities I could find were C++ and assembly. I
don't
David Brown wrote:
Hello. I recently came across a free operating system called Unununium (or
something like that) and it was developed in Python and Assembly.
Now, I have been looking for a way to make an operating system for a long
long time and the only possibilities I could find were C++ and
David Brown wrote:
Hello. I recently came across a free operating system called Unununium (or
something like that) and it was developed in Python and Assembly.
Now, I have been looking for a way to make an operating system for a long
long time and the only possibilities I could find were C++ and
Arich Chanachai wrote:
But
then again, if you don't like C++, you probably won't like Java.
They
can be very different languages, but in my experience, the reasons
why
one does not like C++ is usually due to a quality/flaw that can also
be
found in Java.
Oh, brother.
The Zen of Python says
On Thu, 06 Jan 2005 16:12:54 -0800, Carl Banks wrote:
Arich Chanachai wrote:
But
then again, if you don't like C++, you probably won't like Java.
They
can be very different languages, but in my experience, the reasons
why
one does not like C++ is usually due to a quality/flaw that can also
What exactly do you mean by an operating system?
If you don't want to program in C/C++ then you're going to have a hard time.
I don't want to be too discouraging, but with that attitude I doubt you
would get very far.
It sounds like you want to make more of an OS shell -- no? You can
implement
Fuzzyman wrote:
There is/was a project (Peter Hansen ?) to produce a pure python file
system. that could be an interesting component.
Good memory... uh, sort of. :-) It was probably me you're
thinking of, but the point of the project was solely a
virtual file system, to be used exclusively as a
Carl Banks wrote:
Arich Chanachai wrote:
But
then again, if you don't like C++, you probably won't like Java.
They
can be very different languages, but in my experience, the reasons
why
one does not like C++ is usually due to a quality/flaw
Roose wrote:
What exactly do you mean by an operating system?
If you don't want to program in C/C++ then you're going to have a hard time.
I don't want to be too discouraging, but with that attitude I doubt you
would get very far.
Indeed, this is very true.
It sounds like you want to make more
Arich Chanachai [EMAIL PROTECTED] writes:
He should just build around a linux core or use OS kit (if he is
serious/determined).
There's Ubuntu Linux, a Debian-based distro with commercial backing
and a regular release schedule. One of the neat things about Ubuntu is
that Python use is
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