Simulator Configuration Guide for Synopsys Models

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Appendix B: Using Custom Memory ModelsSimulator Configuration GuideUsing Custom Memory Models withNC-VHDLAttentionFor best performance, use version 4.0 or later of NC-VHDL: this allows youto load multiple dynamic libraries containing C code. To use this means ofloading the DWMM routines, include the following option in the lineinvoking ncsim:ncsim -loadfmi libfmi_ml.so:slm_boot libfmi_ml.so (or .sl on hpux platforms) contains the library table andbootstrap function needed by the dynamic loader included in NC-VHDLversion 4.0 and above.This method eliminates the need to link libfmi_ar.a with your other externalC (foreign language) module to produce a single libfmi.so that incorporatesall foreign language modules in a single library.For more information about using the NC-VHDL with multiple dynamiclibraries, see your Cadence simulator documentation.To use custom memory models with NC-VHDL, follow this procedure:1. Make sure NC-VHDL is set up properly and all required environment variables areset, as explained in “Setting Environment Variables” on page 107.2. If you have built your own Foreign Model Interface (FMI) shared library (forexample, if you’re using VERA or Synopsys VMT models, or your own FMI code),perform this step. Otherwise, skip to step 3.NC-VHDL binds in only one shared FMI library at runtime. If your design usesFMI, you need to build a new FMI shared library that contains your library and theDWMM library. You can find a DWMM archive library here:❍❍HP-UX:$LMC_HOME/lib/hp700.lib/libfmi_ar.aSolaris:$LMC_HOME/lib/sun4Solaris.lib/libfmi_ar.aYou must create a new archive that includes the DWMM archive, library table filedeclaration object file, and your archive. Detailed instructions for this process canbe found in the “Foreign Model Integration” chapter of the Affirma NC VHDLSimulator C Interface User Guide.296 Synopsys, Inc. October 6, 2003
Simulator Configuration GuideAppendix B: Using Custom Memory ModelsYou must combine the contents of the DWMM library table file with your own FMIapplication library table, as shown in the following example:#include extern fmiModelTableT CpipeModelTable;extern fmiModelTableT myFMITable;fmiLibraryTableT fmiLibraryTable = {{"Cpipe", CpipeModelTable},{"myFMIlib", myFMITable},{0, 0}};Link the DWMM archive library with the new library table object file and any otherFMI application object files you wish to include, following the instructions in theCadence C Interface User Guide.The following examples show compiling the library table object files and linkingDWMM libfm_ar.a with the library table object file and the FMI application youdeveloped, shown in the examples as new_FMI_table.o and your_archive.a:❍❍HP-UX% /bin/cc -D_NO_PROTO -c +Z -I$CDS_VHDL/include new_FMI_table.c% /bin/ld -b -o libfmi.sl new_FMI_table.o your_archive.a \$LMC_HOME/lib/hp700.lib/libfmi_ar.aSolaris• For NC-VHDL version 4.0 and above:ncsim -loadfmi libfmi_ml.so:slm_boot Notelibfmi_ml.so is not compatible with versions of NC-VHDL earlier than 4.0.• For NC-VHDL versions before 4.0:% /opt/SUNWspro/bin/cc -c -KPIC -I$CDS_VHDL/include new_FMI_table.c% /opt/SUNWspro/bin/cc -G -o libfmi.so new_FMI_table.o \your_archive.a $LMC_HOME/lib/sun4Solaris.lib/libfmi_ar.a3. Create slm_lib and work directories:% mkdir ./slm_lib% mkdir ./workOctober 6, 2003 Synopsys, Inc. 297
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Simulator ConfigurationGuide for Sy
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TablesSimulator Configuration Guide
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PrefaceSimulator Configuration Guid
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Chapter 1: Using Synopsys Models wi
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Chapter 2: Using VCS with Synopsys
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Chapter 3: Using ModelSim Verilog w
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Chapter 4: Using ModelSim VHDL with
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Chapter 7: Using QuickSim II with S
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Chapter 8: Using Scirocco with Syno
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Chapter 9: Using VERA with Synopsys
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Simulator Configuration Guide for Synopsys Models

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