how to track and handle the floating point exception ?

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how to track and handle the floating point exception ?

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I work with some fortran codes using intel fortran 9.0 integrated with MVS.net 2003.When I debugged,I encounted some floating point exceptions as follows:

forrtl: error (65): floating invalid
Image PC Routine Line Source
sph3d.exe 0046835B Unknown Unknown Unknown
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My code is based on the program from other which works fine. I double checked my own code and I can't find the error.Now I have no idea about how I can fix this bug.I want to track the first place this exception occured.

I would appreciate if someone can give me any idea about this.

Best,

Bei

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