Mentor Graphics ModelSim SE-64 10.7 (Special Edition) is a professional-grade HDL simulator tailored for medium-to-large FPGA and ASIC designs. It is widely recognized for its high performance and "Single Kernel Simulator" (SKS) technology, which allows for seamless mixed-language simulation. Saros Technology Key Features of ModelSim SE 10.7 Mixed-Language Support
: Unlike many lower-tier simulators, the SKS technology enables transparent mixing of within a single design without requiring separate kernels. 64-Bit Performance
: The "SE-64" designation indicates full 64-bit support, allowing the simulator to address more than 4GB of memory. This is critical for simulating massive, high-gate-count designs. Advanced Code Coverage
: It includes automated tools to measure verification completeness, supporting expression (Finite State Machine) coverage. Waveform Comparison
: This feature allows you to compare simulation results before and after a circuit change (like a bug fix) to visually highlight discrepancies. Native Platform Independence
: ModelSim uses optimized compilation technology that produces platform-independent code, allowing you to run the same compiled design on Interactive Debugging
: Features an intuitive GUI where windows (Source, Signals, Process, Wave) update automatically based on activity in others. It also supports Tcl/Tk scripting for full automation. 株式会社マクニカ Notable Changes in Version 10.7 Questa Base - HDL Simulation - InnoFour
Mentor Graphics ModelSim SE-64 10.7 is a high-performance simulation and debug environment for FPGA and ASIC designs. Released as part of the 10.7 series, this version represents a refined iteration of one of the industry's most widely used Hardware Description Language (HDL) simulators, supporting VHDL, Verilog, and SystemVerilog. Overview of ModelSim SE
The "SE" (Special Edition) stands as the highest-tier version of ModelSim, offering full simulation performance and high-capacity features. The "64" designation indicates its optimization for 64-bit architectures, allowing it to handle massive designs that exceed the memory limitations of older 32-bit systems. Key Features of Version 10.7 Mentor Graphics ModelSim SE-64 10.7
Multi-Language Support: It provides a unified kernel for simulating mixed-language designs (VHDL, Verilog, and SystemC), which is essential for modern complex System-on-Chip (SoC) verification.
Performance and Optimization: Version 10.7 introduced various compiler and simulation engine optimizations to reduce runtimes. It includes advanced features like "Black Box" support for intellectual property (IP) protection and optimized gate-level simulation.
Debug Capabilities: The environment features a comprehensive GUI that includes waveform viewers, dataflow windows for tracing signals back to their source, and a memory window for viewing and editing internal FPGA memories.
Standard Compliance: It supports the latest IEEE standards for VHDL (up to 2008) and SystemVerilog (IEEE 1800), ensuring compatibility with modern design methodologies like UVM (Universal Verification Methodology). Use in the Design Flow
In a typical digital design workflow, ModelSim SE 10.7 is used during the functional verification phase. After writing code, engineers use ModelSim to:
Compile: Check the syntax and semantic correctness of the HDL code. Elaborate: Build the design hierarchy.
Simulate: Apply stimulus (testbenches) to the design and observe the output to ensure it matches the intended logic.
Debug: Use the integrated tools to identify and fix timing violations or logic errors. Transition to Siemens EDA Mentor Graphics ModelSim SE-64 10
It is worth noting that following Siemens' acquisition of Mentor Graphics, the branding has shifted. While many still refer to it as Mentor Graphics ModelSim, it is now part of the Siemens EDA portfolio, with much of its high-end technology evolving into the Questa Verification Platform.
The Role of Mentor Graphics ModelSim SE-64 10.7 in Modern EDA
In the complex ecosystem of Electronic Design Automation (EDA), the ability to verify digital logic before physical fabrication is not just a convenience—it is a necessity. Mentor Graphics ModelSim SE-64 10.7 (now part of the Siemens EDA portfolio) represents one of the most mature and widely adopted simulation environments for Hardware Description Languages (HDLs) like VHDL, Verilog, and SystemC. As the "Special Edition" (SE), version 10.7 serves as the high-performance tier of the ModelSim family, specifically engineered to handle the rigorous demands of large-scale FPGA and ASIC design. 1. Architecting Multi-Language Verification
One of the defining features of ModelSim 10.7 is its Single Kernel Simulator (SKS) technology. Unlike earlier tools that required separate engines for different languages, ModelSim SE-64 provides a unified environment where VHDL and Verilog can be simulated together transparently. This "mixed-language" capability is vital for modern projects that often integrate third-party Intellectual Property (IP) cores written in various formats. By compiling these languages into a platform-independent format, the software ensures that simulation results remain consistent across different operating systems, including Windows and various Linux distributions. 2. Advanced Debugging and Performance Metrics
The "64-bit" designation in this version is critical for performance. Traditional 32-bit simulators are often constrained by memory limits, which can cause large-scale simulations to fail. ModelSim SE-64 10.7 leverages 64-bit memory addressing to simulate massive designs with millions of gates without the 4GB RAM ceiling inherent in older architectures.
Beyond raw capacity, version 10.7 integrates sophisticated verification tools:
Code Coverage: Automatically tracks which parts of the HDL code have been exercised by testbenches, helping engineers identify "dead code" or untested logic paths.
Waveform Compare: Allows designers to compare two different simulation runs side-by-side to quickly pinpoint timing mismatches or functional regressions. 2.5. Code Coverage
Performance Analysis: Identifies bottlenecks in the simulation itself, allowing users to optimize their code for faster verification cycles. 3. Streamlining the Engineering Workflow
The software is designed for both interactivity and automation. While the Graphical User Interface (GUI) provides a rich environment for manual debugging—featuring cross-linked windows where selecting a signal in the wave viewer automatically highlights the corresponding source code—it also supports robust scripting via Tcl/Tk. This allows engineering teams to run thousands of "regression tests" in batch mode, ensuring that a small change in one module does not break the functionality of the entire system. Conclusion
Mentor Graphics ModelSim SE-64 10.7 remains a cornerstone of the digital verification process. By combining high-capacity 64-bit simulation with an intuitive debugging suite and multi-language support, it bridges the gap between conceptual hardware design and reliable, physical implementation. In an era where "first-pass success" is the gold standard, tools like ModelSim provide the necessary insurance against costly hardware errors. ModelSIM SE 10.7c Mentor Graphics
| Operating System | 64-bit Support | |-----------------|----------------| | Windows 10/11 | Yes | | Red Hat / CentOS 7/8 | Yes | | SUSE Linux Enterprise | Yes | | Ubuntu LTS (20.04, 22.04) | Community-supported |
Most professional ASIC shops run ModelSim on Linux. Here is the canonical install flow for 10.7:
Prerequisites: (RHEL 7.x / CentOS 7)
libXext.so.6, libXft.so.2, libstdc++.so.6Steps:
modelsim_se_10.7_linux.run binary package (approx. 1.8 GB) from the Siemens Support Center.chmod +x modelsim_se_10.7_linux.run && ./modelsim_se_10.7_linux.run/tools/mentor/modelsim_se_10.7).license.dat file.vmap to map the standard IEEE and vendor-specific libraries (e.g., Xilinx unisim, secureip).Common Pitfall: Forgetting to compile the Verilog glbl module, which results in "Fatal: (vsim-7) Failed to open VHDL entity 'glbl' ."