Sim+ Frequently Asked Questions

Last update: January 30, 1998.

Q: What is the latest release of Sim+ ?
A: The Sim+ translator (code generator) latest release is 1.5.00 , and the Windows GUI shell latest release is 1.0

Q: How do I have to set up the Windows operating system in order for DJGPP to compile the generated code from within the Sim+ GUI shell ?
A: That depends on whether you are using Windows 95 or Windows NT :

• In Windows 95, both the path environment variable and the DJGPP environment variable must be set in 'AUTOEXEC.BAT' in the root directory - in a typical DJGPP installation on drive C: ,  PATH would have to include C:\DJGPP\BIN , and a 'set DJGPP=C:\DJGPP\DJGPP.ENV' line would have to be added to the 'AUTOEXEC.BAT' file (if none already exists).
• In Windows NT operating system, environment variables are passed to the DJGPP compiler from the GUI, therefore, it is enough to set the right PATH and DJGPP environment variable in the 'Options->Environment' menu of the GUI shell.

Q: How do I compile the generated simulation code using Microsoft Visual C++ 5.0 from within the GUI ?
A: The first time after the code is generated, you will have to enter the MSVC IDE (Integrated Development Environment) and set up a project workspace for the simulation, and build the executable once. Then, use the IDE to create a makefile for the project.
In subsequent versions of generated code, you may 'make' the executable from the GUI, by using Microsoft's 'nmake', to do so, the 'compile command' in the GUI 'Options->Settings' menu has to be set to 'nmake makefilename' .

Q: I am using DJGPP to compile the generated code and it compiles fine, However when I run the simulation from within the GUI, the simulation terminates with an error message before it reaches the predefined number of samples, Why does this happen ?
A: If any of you have a good explanation, please tell us ! , There are two ways to work around this problem : one is to execute the simulation directly form a DOS window. The other one is to use MSVC++ 5.0 to create the simulation executable, as far as we know this problem does not occur with MSVC generated executables.

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updated: Jan 30, 1998