MMX registers

[Nak]

Hi there,

I am trying to get a C++ application to compile in Visual Studio .NET
2003, all is compiling okay but I am coming across issues when the linker
starts. It doesn't seem to be able to find the MMX extensions, is there
anything I need to do to enable the linker to find these?

Thanks in advance!!

Nak.

 

[Peter Huang]

Hi Nak,

Currently I am looking for somebody who could help you on it. We will reply
here with more information as soon as possible.
If you have any more concerns on it, please feel free to post here.


Best regards,

Peter Huang
Microsoft Online Partner Support

Get Secure! - www.microsoft.com/security
This posting is provided "AS IS" with no warranties, and confers no rights.

 

[Nak]

Hi Peter,

For now I have stopped attempting to get the application to work, but
would still like to see it working, I downloaded a piece of code from

http://www.cs.utah.edu/~michael/chroma/

It's an MMX based chromakeying routine, I am currently working on one
that is radically different, but as yet am unsure of the speed implications.
The code is downloadable from the bottom of the page. Thanks for your help
Peter.

http://www.cs.utah.edu/~michael/chroma/ck.txt
http://www.cs.utah.edu/~michael/chroma/mdefs.txt

Nak.

 

[Carl Daniel [VC++ MVP]]

Hi there,

I am trying to get a C++ application to compile in Visual Studio
.NET 2003, all is compiling okay but I am coming across issues when
the linker starts. It doesn't seem to be able to find the MMX
extensions, is there anything I need to do to enable the linker to
find these?

You need to contact the author of the web page where you got the chroma key
code - he's supplied prototypes but no implementations for a set of MMX
emulation functions. These functions are not the MMX intrinsics supported
by the Microsoft and Intel compilers, but rather are functions that he made
up.

See
http://msdn.microsoft.com/library/d...n-us/vclang/html/vclrfmmxssesse2intrisics.asp
for documentation of the intrinsics supported by VC++.

-cd

 

[Nak]

Hi Carl,

Aaah, that might explain some things. Thanks loads for your help its
great to know this, it saves me a lot of time trying to get it to work. But
I shall contact him as you suggest as it would be interesting to see speed
comparrisons, but saying that I am using a much simpler algorithm now.
Thanks again.

Nick.