Simulator Configuration Guide for Synopsys Models

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Chapter 2: Using VCS with Synopsys ModelsSimulator Configuration GuideUsing SmartModels with VCSTo use SmartModels with VCS, follow this procedure:1. Make sure VCS is set up properly and all required environment variables are set, asexplained in “Setting Environment Variables” on page 40.2. Synopsys provides a tool, vcs_sg, that allows you to generate multiple modelwrapper files. You must select VCS as your Verilog simulator during theSmartModel installation in order to have vcs_sg available. It will be installed as$LMC_HOME/bin/vcs_sgThe vcs_sg tool also extends the usefulness of the model wrapper files generated byVCS in two ways:❍it adds statements that allow the DelayRange to be controlled by the VCScommand line +define parameters (or a defparam in your testbench)❍ it adds a check for the VCS command line +define+SwiftChecksOff parameterthat turns constraints off.You can change the default name of the generated wrapper files (model.swift.v), aswell as the location that the generated wrappers are written to. Use the followingcommand to return the usage message for the vcs_sg tool.% $LMC_HOME/bin/vcs_sg -h3. Instantiate SmartModels in your design, defining the ports and defparams asrequired. For details on the required SWIFT parameters and SmartModelinstantiation examples, refer to “SmartModel SWIFT Parameters” on page 19.4. Invoke the VCS simulator as shown in the following examples:Solaris (32-bit):% $VCS_HOME/bin/vcs -lmc-swift model.swift.v model_tb.v \-l vcs_sim.log \-Mupdate \-RIHP-UX (32-bit):% $VCS_HOME/bin/vcs -lmc-swift model.swift.v model_tb.v \-l vcs_sim.log \-Mupdate \-RI42 Synopsys, Inc. October 6, 2003
Simulator Configuration GuideChapter 2: Using VCS with Synopsys ModelsSparc64:% $VCS_HOME/bin/vcs -lmc-swift model.swift.v model_tb.v \-full64 \-l vcs_sim.log \-Mupdate \-RIHP64:AIX:% $VCS_HOME/bin/vcs -lmc-swift model.swift.v model_tb.v \-full64 \-l vcs_sim.log \-Mupdate \-RI% $VCS_HOME/bin/vcs -lmc-swift model.swift.v model_tb.v \-l vcs_sim.log \-Mupdate \-RI \-LDFLAGS -lldLinux:% $VCS_HOME/bin/vcs -lmc-swift model.swift.v model_tb.v \-l vcs_sim.log \-Mupdate \-RI \-LDFLAGS -rdynamicwhere model.swift.v is the template you created in the previous step and model_tb.vis the testbench where the model is instantiated. Each model instantiated in thetestbench must have a model.swift.v wrapper file listed on the VCS invocation line.VCS SmartModel ExplanationTable 6 lists each line in the invocation examples above, along with explanations forwhat each one does.Table 6: VCS SmartModel ExplanationLine ReferenceDescription$VCS_HOME/bin/vcs-lmc-swift model.swift.v model_tb.vPath to the file that starts the VCS simulator, aswitch that causes VCS to load the SWIFTinterface, and then the specified model wrapper andVerilog testbench files.October 6, 2003 Synopsys, Inc. 43
Page 1: Simulator ConfigurationGuide for Sy
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Page 12 and 13: PrefaceSimulator Configuration Guid
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Chapter 9: Using VERA with Synopsys
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Chapter 10: Using SystemC with Syno
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Appendix A: Using LMTV with Synopsy
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Appendix B: Using Custom Memory Mod
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IndexSimulator Configuration Guide$
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Simulator Configuration Guide for Synopsys Models

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