C# and my indispensable inline assembly code

[Teis Draiby]

I am about to move my C++ application to C#. Parts of my previous
application consisted of inline SSE2 assembly code optimized for the P4
processor. What options do I have to integrate that part into my C#
application?
There are no such things as intrinsics support in C#, right?

Thank you very much!
regards, Teis

[Bob Powell [MVP]]

As far as I know this is not possible. You could separate your assembly
code out into a DLL which you call from your C# code using p/invoke but of
course this won't be inlined.

--
Bob Powell [MVP]
Visual C#, System.Drawing

All you ever wanted to know about ListView custom drawing is in Well Formed.
http://www.bobpowell.net/currentissue.htm

Answer those GDI+ questions with the GDI+ FAQ
http://www.bobpowell.net/gdiplus_faq.htm

Read my Blog at http://bobpowelldotnet.blogspot.com

"Teis Draiby" <te************ *@draiby.com> wrote in message
news:%2******** ********@TK2MSF TNGP12.phx.gbl. ..

I am about to move my C++ application to C#. Parts of my previous
application consisted of inline SSE2 assembly code optimized for the P4
processor. What options do I have to integrate that part into my C#
application?
There are no such things as intrinsics support in C#, right?

Thank you very much!
regards, Teis

[Teis Draiby]

-Thank you for your reply!
Any way I reach my beloved assembly is perfect for me. I'm still a C#
novice; is your proposal using a DLL and p/invoke the best and only solution
or are there other options that I could take into consideration?
My SSE2 code handles reatime video so both bandwidth and latency are issues
while communicating with the assembly section.

thank you very much, Teis
"Bob Powell [MVP]" <bob@_spamkille r_bobpowell.net > wrote in message
news:ei******** *****@TK2MSFTNG P11.phx.gbl...

As far as I know this is not possible. You could separate your assembly
code out into a DLL which you call from your C# code using p/invoke but of
course this won't be inlined.

--
Bob Powell [MVP]
Visual C#, System.Drawing

All you ever wanted to know about ListView custom drawing is in Well Formed. http://www.bobpowell.net/currentissue.htm

Answer those GDI+ questions with the GDI+ FAQ
http://www.bobpowell.net/gdiplus_faq.htm

Read my Blog at http://bobpowelldotnet.blogspot.com

"Teis Draiby" <te************ *@draiby.com> wrote in message
news:%2******** ********@TK2MSF TNGP12.phx.gbl. ..

I am about to move my C++ application to C#. Parts of my previous
application consisted of inline SSE2 assembly code optimized for the P4
processor. What options do I have to integrate that part into my C#
application?
There are no such things as intrinsics support in C#, right?

Thank you very much!
regards, Teis

[Mark Broadbent]

is this really true Bob? Seems odd that Anders would have left that ability
out (cos I'm sure I remember this ability in Delphi -which of course is part
of Anders' background).
Maybe he's done this for code safety/ seperation/ readability?
--

--

Br,
Mark Broadbent
mcdba , mcse+i
=============
"Bob Powell [MVP]" <bob@_spamkille r_bobpowell.net > wrote in message
news:ei******** *****@TK2MSFTNG P11.phx.gbl...

As far as I know this is not possible. You could separate your assembly
code out into a DLL which you call from your C# code using p/invoke but of
course this won't be inlined.

--
Bob Powell [MVP]
Visual C#, System.Drawing

All you ever wanted to know about ListView custom drawing is in Well Formed. http://www.bobpowell.net/currentissue.htm

Answer those GDI+ questions with the GDI+ FAQ
http://www.bobpowell.net/gdiplus_faq.htm

Read my Blog at http://bobpowelldotnet.blogspot.com

"Teis Draiby" <te************ *@draiby.com> wrote in message
news:%2******** ********@TK2MSF TNGP12.phx.gbl. ..

I am about to move my C++ application to C#. Parts of my previous
application consisted of inline SSE2 assembly code optimized for the P4
processor. What options do I have to integrate that part into my C#
application?
There are no such things as intrinsics support in C#, right?

Thank you very much!
regards, Teis

[Willy Denoyette [MVP]]

But Delphi is unmanaged code, while C# results in managed code (IL) running
in the CLR, where it's translated to machine code by the JITter. The IL
produced by the C# compiler is secure/verifiable code and this is essential
for the language, allowing to embed assembly (unverifiable) would render the
language unverifiable (you don't wan't your assembly code to be translated
int IL do you?).

Willy.
"Mark Broadbent" <no************ @no-spam-please.com> wrote in message
news:OE******** ******@TK2MSFTN GP10.phx.gbl...

is this really true Bob? Seems odd that Anders would have left that
ability
out (cos I'm sure I remember this ability in Delphi -which of course is
part
of Anders' background).
Maybe he's done this for code safety/ seperation/ readability?
--

--

Br,
Mark Broadbent
mcdba , mcse+i
=============
"Bob Powell [MVP]" <bob@_spamkille r_bobpowell.net > wrote in message
news:ei******** *****@TK2MSFTNG P11.phx.gbl...

As far as I know this is not possible. You could separate your assembly
code out into a DLL which you call from your C# code using p/invoke but
of
course this won't be inlined.

--
Bob Powell [MVP]
Visual C#, System.Drawing

All you ever wanted to know about ListView custom drawing is in Well

Formed.

http://www.bobpowell.net/currentissue.htm

Answer those GDI+ questions with the GDI+ FAQ
http://www.bobpowell.net/gdiplus_faq.htm

Read my Blog at http://bobpowelldotnet.blogspot.com

"Teis Draiby" <te************ *@draiby.com> wrote in message
news:%2******** ********@TK2MSF TNGP12.phx.gbl. ..

> I am about to move my C++ application to C#. Parts of my previous
> application consisted of inline SSE2 assembly code optimized for the P4
> processor. What options do I have to integrate that part into my C#
> application?
> There are no such things as intrinsics support in C#, right?
>
> Thank you very much!
> regards, Teis
>
>

[Sam Gentile [MCP - C#/.NET]]

Yes, the embedding of assembly language would render the assembly (and the
language as a feature) unverifiable. The CLR has absolutely no visibility
into unmanaged code and thus cannot control it's type safety or lifetime.

You could use MC++ which using IJW allows you to mix and match unmanaged and
managed C++ even in the same module but as long as there is assembly
language, the assembly will be non-verifiable.

--
Sam Gentile
Microsoft MVP - C#/.NET
INETA Speaker
Read my CLR blog http://samgentile.com/blog/
"Willy Denoyette [MVP]" <wi************ *@pandora.be> wrote in message
news:ep******** *****@TK2MSFTNG P12.phx.gbl...

But Delphi is unmanaged code, while C# results in managed code (IL)
running in the CLR, where it's translated to machine code by the JITter.
The IL produced by the C# compiler is secure/verifiable code and this is
essential for the language, allowing to embed assembly (unverifiable)
would render the language unverifiable (you don't wan't your assembly code
to be translated int IL do you?).

Willy.
"Mark Broadbent" <no************ @no-spam-please.com> wrote in message
news:OE******** ******@TK2MSFTN GP10.phx.gbl...

is this really true Bob? Seems odd that Anders would have left that
ability
out (cos I'm sure I remember this ability in Delphi -which of course is
part
of Anders' background).
Maybe he's done this for code safety/ seperation/ readability?
--

--

Br,
Mark Broadbent
mcdba , mcse+i
=============
"Bob Powell [MVP]" <bob@_spamkille r_bobpowell.net > wrote in message
news:ei******** *****@TK2MSFTNG P11.phx.gbl...

As far as I know this is not possible. You could separate your assembly
code out into a DLL which you call from your C# code using p/invoke but
of
course this won't be inlined.

--
Bob Powell [MVP]
Visual C#, System.Drawing

All you ever wanted to know about ListView custom drawing is in Well

Formed.

http://www.bobpowell.net/currentissue.htm

Answer those GDI+ questions with the GDI+ FAQ
http://www.bobpowell.net/gdiplus_faq.htm

Read my Blog at http://bobpowelldotnet.blogspot.com

"Teis Draiby" <te************ *@draiby.com> wrote in message
news:%2******** ********@TK2MSF TNGP12.phx.gbl. ..
> I am about to move my C++ application to C#. Parts of my previous
> application consisted of inline SSE2 assembly code optimized for the
> P4
> processor. What options do I have to integrate that part into my C#
> application?
> There are no such things as intrinsics support in C#, right?
>
> Thank you very much!
> regards, Teis
>
>

[Teis Draiby]

I just miss the possibility in C# (.NET) to specifically target modern
processors supporting SIMD instructions like SSE2 and 3D Now. Nevertheless
inner loops making use of SIMD can boost the process by several times.
Is that completely incompatible with MSIL?

regards, Teis
"Willy Denoyette [MVP]" <wi************ *@pandora.be> wrote in message
news:ep******** *****@TK2MSFTNG P12.phx.gbl...

But Delphi is unmanaged code, while C# results in managed code (IL) running in the CLR, where it's translated to machine code by the JITter. The IL
produced by the C# compiler is secure/verifiable code and this is essential for the language, allowing to embed assembly (unverifiable) would render the language unverifiable (you don't wan't your assembly code to be translated
int IL do you?).

Willy.
"Mark Broadbent" <no************ @no-spam-please.com> wrote in message
news:OE******** ******@TK2MSFTN GP10.phx.gbl...

is this really true Bob? Seems odd that Anders would have left that
ability
out (cos I'm sure I remember this ability in Delphi -which of course is
part
of Anders' background).
Maybe he's done this for code safety/ seperation/ readability?
--

--

Br,
Mark Broadbent
mcdba , mcse+i
=============
"Bob Powell [MVP]" <bob@_spamkille r_bobpowell.net > wrote in message
news:ei******** *****@TK2MSFTNG P11.phx.gbl...

As far as I know this is not possible. You could separate your assembly code out into a DLL which you call from your C# code using p/invoke but
of
course this won't be inlined.

--
Bob Powell [MVP]
Visual C#, System.Drawing

All you ever wanted to know about ListView custom drawing is in Well

Formed.

http://www.bobpowell.net/currentissue.htm

Answer those GDI+ questions with the GDI+ FAQ
http://www.bobpowell.net/gdiplus_faq.htm

Read my Blog at http://bobpowelldotnet.blogspot.com

"Teis Draiby" <te************ *@draiby.com> wrote in message
news:%2******** ********@TK2MSF TNGP12.phx.gbl. ..
> I am about to move my C++ application to C#. Parts of my previous
> application consisted of inline SSE2 assembly code optimized for the P4 > processor. What options do I have to integrate that part into my C#
> application?
> There are no such things as intrinsics support in C#, right?
>
> Thank you very much!
> regards, Teis
>
>

[Willy Denoyette [MVP]]

Teis,

Yes I know, but this is not the level you are programming at when using a
managed language, if you really need this you should stick to (VS C++7.x)
C/C++ where you can mix managed code and unmanaged code (and asm).
As for your SSE2 support, this is up to the CLR (JITter) to decide whether
these are available and use them when appropriate, but again if you want
play with your own toys ;-) just ignore C# for this and use C++.

Willy.

"Teis Draiby" <te************ *@draiby.com> wrote in message
news:Oa******** ******@TK2MSFTN GP09.phx.gbl...

I just miss the possibility in C# (.NET) to specifically target modern
processors supporting SIMD instructions like SSE2 and 3D Now. Nevertheless
inner loops making use of SIMD can boost the process by several times.
Is that completely incompatible with MSIL?

regards, Teis

[Daniel Jin]

----- Teis Draiby wrote: ----

I just miss the possibility in C# (.NET) to specifically target moder
processors supporting SIMD instructions like SSE2 and 3D Now. Nevertheles
inner loops making use of SIMD can boost the process by several times
Is that completely incompatible with MSIL

yes, because that defeats the whole purpose of having a "virtual machine". remember, when you right in .NET, you are writing code for something imaginary, there's no SSE2 or 3D Now in our imaginary world.

[Mark Broadbent]

yeah your right, I personally thought it might be nice to be able to embed
code like assembly that would be unmanaged and bypass the CLR (obviously in
the unsafe context) but I guess it is just as easy to import it via a dll
like Bob suggested.

--

--

Br,
Mark Broadbent
mcdba , mcse+i
=============
"Willy Denoyette [MVP]" <wi************ *@pandora.be> wrote in message
news:ep******** *****@TK2MSFTNG P12.phx.gbl...

But Delphi is unmanaged code, while C# results in managed code (IL) running in the CLR, where it's translated to machine code by the JITter. The IL
produced by the C# compiler is secure/verifiable code and this is essential for the language, allowing to embed assembly (unverifiable) would render the language unverifiable (you don't wan't your assembly code to be translated
int IL do you?).

Willy.
"Mark Broadbent" <no************ @no-spam-please.com> wrote in message
news:OE******** ******@TK2MSFTN GP10.phx.gbl...

is this really true Bob? Seems odd that Anders would have left that
ability
out (cos I'm sure I remember this ability in Delphi -which of course is
part
of Anders' background).
Maybe he's done this for code safety/ seperation/ readability?
--

--

Br,
Mark Broadbent
mcdba , mcse+i
=============
"Bob Powell [MVP]" <bob@_spamkille r_bobpowell.net > wrote in message
news:ei******** *****@TK2MSFTNG P11.phx.gbl...

As far as I know this is not possible. You could separate your assembly code out into a DLL which you call from your C# code using p/invoke but
of
course this won't be inlined.

--
Bob Powell [MVP]
Visual C#, System.Drawing

All you ever wanted to know about ListView custom drawing is in Well

Formed.

http://www.bobpowell.net/currentissue.htm

Answer those GDI+ questions with the GDI+ FAQ
http://www.bobpowell.net/gdiplus_faq.htm

Read my Blog at http://bobpowelldotnet.blogspot.com

"Teis Draiby" <te************ *@draiby.com> wrote in message
news:%2******** ********@TK2MSF TNGP12.phx.gbl. ..
> I am about to move my C++ application to C#. Parts of my previous
> application consisted of inline SSE2 assembly code optimized for the P4 > processor. What options do I have to integrate that part into my C#
> application?
> There are no such things as intrinsics support in C#, right?
>
> Thank you very much!
> regards, Teis
>
>