Microsoft KB Archive/47749

= Suppressing Math Coprocessor Use by a FORTRAN Application =

Article ID: 47749

Article Last Modified on 12/1/2003

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APPLIES TO


 * Microsoft FORTRAN Compiler 4.0
 * Microsoft FORTRAN Compiler 4.01
 * Microsoft FORTRAN Compiler 4.1
 * Microsoft FORTRAN Compiler 5.0
 * Microsoft FORTRAN Compiler 5.1
 * Microsoft FORTRAN Compiler 4.1
 * Microsoft FORTRAN Compiler 5.0
 * Microsoft FORTRAN Compiler 5.1

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This article was previously published under Q47749



SUMMARY
To prevent a FORTRAN program linked with the emulator math library from using the math coprocessor, modify your environment to define the symbol NO87. Enter the following command at the operating system prompt:

SET NO87=TRUE

When NO87 is defined to contain any string, no FORTRAN application will use the coprocessor. Instead, each application displays the &quot;use of coprocessor suppressed&quot; message.

To suppress coprocessor use for all FORTRAN applications under MS-DOS, edit your AUTOEXEC.BAT file to include the SET command. Under OS/2, edit your CONFIG.SYS file to include the SET command.

For more information, see page 16 of the Microsoft FORTRAN &quot;Advanced Topics&quot; manual for version 5.1, page 17 of the Microsoft FORTRAN &quot;Advanced Topics&quot; manual for version 5.0, or page 204 of the Microsoft FORTRAN &quot;User's Guide&quot; for versions 4.x. The index lists this information under the heading &quot;Environment Variables, NO87.&quot; In FORTRAN version 3.2, see the README.TXT file for information on the NO87 environment variable.

Additional query words: kbinf 4.00 nofps 4.01 4.10 5.00 5.10

Keywords: KB47749

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