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PRIMESSTEP3 Sample: Demonstrates a Mixed C and ASM Project with a C Header File

The PRIMESSTEP3 sample is a mixed C and ASM project that moves the core algorithm to the .asm file and adds a separate C header and .asm include file to declare the extern function and global data structure.

In the .asm source file, the settings for the Command Line and Outputs boxes of the Custom Build Step tab are included in comments. In addition, the settings for the Additional Dependencies box lists the .asm include file. This assembles the .asm file if either the .asm file or the .asm include file is new than the object file generated by Custom Build Step.

To view these settings, right-click the .asm file and click Properties. These settings, which support including the .asm file in the build, have already been entered for you.

Security noteSecurity Note:

This sample code is provided to illustrate a concept and should not be used in applications or Web sites, as it may not illustrate the safest coding practices. Microsoft assumes no liability for incidental or consequential damages should the sample code be used for purposes other than as intended.

To get samples and instructions for installing them:

  • On the Visual Studio Help menu, click Samples.

    For more information, see Visual Studio Samples.

  • The most recent version and complete list of samples is available online from the Visual Studio 2008 Samples page.

  • You can also locate samples on your computer's hard disk. By default, samples and a Readme file are copied into a folder under \Program Files\Visual Studio 9.0\Samples\. For Express editions of Visual Studio, all samples are located online.

To build and run this sample

  1. Open the solution PrimesStep3.sln.

  2. On the Build menu, click Build.

  3. On the Debug menu, click Start Without Debugging.

You can use this sample to explore Visual C++ support for mixed C/C++ and ASM projects, such as using the Custom Build Step tab in the Properties dialog box and debugging .asm files at a source level. You can use the .asm file or project file as a template to incorporate .asm files into a Visual C++ project.

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