Singularity [modified]

[originSH]

Well since you seem to be incapable of following the links on the page I pointed at here's one of the better documents on singularity: http://research.microsoft.com/os/singularity/publications/OSR2007_RethinkingSoftwareStack.pdf[^] Singularity is only for research purposes, it's currently nothing to do with windows and won't be commercialised. It was an experiment in what can be done using modern programming practises and tools with regards to designing a new OS from the ground up. The interesting bit is the SIPs and the stuff that goes with them such as the pipelines and the fact that all code is fully verifiable.

[Lost User]

Eeek, a pdf. Hmm, perhaps not, I have to write some code for a real OS kernel, actually, for Microsoft as it happens. Anyone know a GUID to UNICODE_STRING converter?

Morality is indistinguishable from social proscription

[Nemanja Trifunovic]

Reminds me of the time I was learning Java (late 90's) - everything was being rewritten with Java - there was JavaOS, Java Office, Java Browser (it had some other name, though), Java DBMS, you name it... The last thing of that sort was Java Desktop - which wasn't even written in Java, but in plain old C: Linux + GNOME :)

Programming Blog utf8-cpp

[El Corazon]

norm .net wrote:

I wish

so you are a midget? ;P

_________________________ Asu no koto o ieba, tenjo de nezumi ga warau. Talk about things of tomorrow and the mice in the ceiling laugh. (Japanese Proverb)

[Rob Graham]

fat_boy wrote:

Anyone know a GUID to UNICODE_STRING converter?

In that C# language you so frequently disparage: Guid.ToString();//with overloads for the various formats.

[Lost User]

Rob Graham wrote:

In that C# language you so frequently disparage: Guid.ToString();//with overloads for the various formats.

Already found it thanks: NTSTATUS RtlStringFromGUID( IN REFGUID Guid, OUT PUNICODE_STRING GuidString );

Morality is indistinguishable from social proscription

[Lost User]

Yeah, eventually people give up trying to reinvent the wheel and be clever and end up writing in C, or C++ at a push. (Actually, they are the same language anyway)

Morality is indistinguishable from social proscription

[originSH]

Thats not what this is about ;) It's not that the developers use C# and decided to make an OS, it's that they decided to make an OS using modern tools and methodologies and C# fitted the bill. And it's not even quite that simple, they modified the language and the runtime so it fit into their ideal rather than working within the limits of what existed. It's not even a serious attempt at making something commercial, it's an experiment to try and see what things work and how things could be done better. Edit: Although that is what SharpOS is about. Thats a project that doesn't interest me so much because your right, it's best to use the right tools for the right job.

[TheGreatAndPowerfulOz]

Nemanja Trifunovic wrote:

Java Browser

HotJava

Silence is the voice of complicity. Strange women lying in ponds distributing swords is no basis for a system of government. -- monty python Might I suggest that the universe was always the size of the cosmos. It is just that at one point the cosmos was the size of a marble. -- Colin Angus Mackay

[Mustafa Ismail Mustafa]

Yes, that's the one!

"Every time Lotus Notes starts up, somewhere a puppy, a kitten, a lamb, and a baby seal are killed. Lotus Notes is a conspiracy by the forces of Satan to drive us over the brink into madness. The CRC-32 for each file in the installation includes the numbers 666." Gary Wheeler "The secret to a long and healthy life is simple. Don't get ill and don't die." Pete O'Hanlon, courtesy of Rama "I realised that all of my best anecdotes started with "So there we were, pissed". Pete O'Hanlon

[Erik Funkenbusch]

fat_boy wrote:

Of course this isnt true. The C# interpreter will be written in C of course.

C# is not an interpreted language (in general, there do exist C# inerpreters, but nobody uses them).

-- Where are we going? And why am I in this handbasket?

[Lost User]

Erik Funkenbusch wrote:

C# is not an interpreted language

Isnt C# 'compiled' down to a p-code type level (or is it byte code a la VB). Because the C# engine will run J++ p-code so C# p-code is probably similar. So, since it isnt compiled doen to machine code, it is still interpreted no? Unless the .Net VM really can handle machine code.

Morality is indistinguishable from social proscription

[Mark_Wallace]

Looks like they've stolen a few ideas from COBOL 99[^], particularly the read-ahead, precompile thing.

[Erik Funkenbusch]

Yes, C#, VB, J++, etc.. are compiled to byte-code, but when they are executed they are compiled to machine code on the fly. This is different from interpreation because interpretation doesn't execute machine code directly, and thus is very slow. All .NET apps execute as compiled machine code, they just aren't stored that way on disk.

-- Where are we going? And why am I in this handbasket?

[Lost User]

Ah yes, of course, the JIT compiler. I suppose that once the code has been OKed by the VM it stores the compiled version for later use. Still, when you look at the assembly code generated by languages like C++ you can understand why even that isnt supported in the WIndows Kernel. God knows what C# assembly would look like, but probably worse! For me, C is for machines, for working with the HW. Its quick to write, relatively high level, but as flexible and as powerful as you could want. Of course a programmer has to be quite good to use it safely, and hence the attraction of the managed languages, relatively unskilled programmers can turn out vast amounts of reasonable product.

Morality is indistinguishable from social proscription