The compiled simulation and external function source files are installed into the same directory. The file vensim.h is used by both. The following files relate to compiled simulations:
| • | simext.c - the source code connecting Vensim to the model C equations. simext.c is included by the generated mdl.h, and so reaches every generated C file; it in turn includes vensim.h. It contains limited internal documentation. |
| • | sim.def - the definition file defining which functions are exported from the created DLL. |
| • | vensim.h - an include file required by simext.c defining the different types and structures used in these files. |
| • | MDLDP64.BAT, MDLDP.BAT, mdl.bat, mdlorig.bat - batch files used to compile the generated C and create the DLL in support of compiled simulation. 64-bit Vensim uses MDLDP64.BAT; the others are for older 32-bit builds. mdlorig.bat is kept as a reference if you are changing one of them. On the Mac the equivalent script is mdldp.macx. |
