Intel® Simics® Simulator for Altera® FPGAs: User Guide

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ID 784383
Date 9/29/2025
Public
Document Table of Contents
Document Table of Contents x
1. About This Document 2. Intel® Simics® Simulator and Virtual Platforms 3. Intel® Simics® Simulator for Altera® FPGAs Device Portfolio 4. Installing the Intel® Simics® Simulator for Altera® FPGAs 5. Getting Started with Intel® Simics® Simulator 6. Debugging Target Software 7. Networking with the Simulated Target System 8. Intel® Simics® Scripting 9. Software Debug Examples with Intel® Simics® Simulator 10. Document Revision History for Intel® Simics® Simulator for Altera FPGAs User Guide A. Intel® Simics® Simulator Command Reference
1. About This Document x
1.1. Documentation Conventions for Examples 1.2. Terminology 1.3. List of Acronyms
2. Intel® Simics® Simulator and Virtual Platforms x
2.1. Device Model and Virtual Platforms 2.2. Intel® Simics® Simulator 2.3. Intel® Simics® Simulator Architecture
2.2. Intel® Simics® Simulator x
2.2.1. Intel® Simics® Simulator for Altera® FPGAs Capabilities
4. Installing the Intel® Simics® Simulator for Altera® FPGAs x
4.1. Installing the Intel® Simics® Simulator for Altera® FPGAs on Linux* Systems 4.2. Installing the Intel® Simics® Simulator for Altera® FPGAs on Microsoft Windows* Systems 4.3. Installing Ashling* RiscFree* IDE for Altera® FPGAs 4.4. Intel® Simics® Simulator for Altera® FPGAs Support
5. Getting Started with Intel® Simics® Simulator x
5.1. Simulation Set Up 5.2. Starting the Simulation 5.3. Intel® Simics® Simulator Command-Line Interface (CLI) 5.4. Hardware Inspection 5.5. Intel® Simics® Simulator Timing
5.1. Simulation Set Up x
5.1.1. Initializing an Intel® Simics® Project and Deploying a Virtual Platform 5.1.2. Understanding Target Scripts
5.2. Starting the Simulation x
5.2.1. Starting a Simulation from a Command Prompt 5.2.2. Starting a Simulation with Ashling* RiscFree* IDE
5.3. Intel® Simics® Simulator Command-Line Interface (CLI) x
5.3.1. Version of the Intel® Simics® Simulator for Altera® FPGAs Software 5.3.2. Simulation Run Control from CLI 5.3.3. Intel® Simics® Simulator Command Scope 5.3.4. Intel® Simics® Simulator CLI Variables and Operations 5.3.5. Intel® Simics® Simulator CLI Command Completion and Command History 5.3.6. Intel® Simics® Command-Line Interface Help 5.3.7. Capture of CLI Session to a File 5.3.8. Intel® Simics® Simulator File Location and Intel® Simics® Search Path
5.4. Hardware Inspection x
5.4.1. Listing Objects in the Target System 5.4.2. Processor (CPU) Inspection 5.4.3. Device Inspection 5.4.4. Memory Mapping and Memory Inspection 5.4.5. Logging
5.4.2. Processor (CPU) Inspection x
5.4.2.1. Listing Processors 5.4.2.2. Inspect Processor Registers
5.4.3. Device Inspection x
5.4.3.1. Retrieve List of Devices 5.4.3.2. Inspecting Device Registers
5.4.4. Memory Mapping and Memory Inspection x
5.4.4.1. Memory Mapping Inspection 5.4.4.2. Memory Inspection
5.4.5. Logging x
5.4.5.1. Breakpoints on CLI Log Messages
5.5. Intel® Simics® Simulator Timing x
5.5.1. CPU Frequency 5.5.2. CPU Cycles and Steps 5.5.3. Events 5.5.4. Enable Real Time
6. Debugging Target Software x
6.1. Intel® Simics® Debugger and Debug Context 6.2. Capturing Serial Console Output 6.3. Breakpoints 6.4. Debugging Target Software with Symbol Files 6.5. Debugging Target Software with Ashling* RiscFree* Debugger 6.6. Capturing CPU Instruction Execution Trace
6.3. Breakpoints x
6.3.1. Memory Breakpoints 6.3.2. Temporal Breakpoints 6.3.3. CPU Control Register Breakpoints 6.3.4. Hardware Access Breakpoints 6.3.5. CPU Register Breakpoints 6.3.6. Tracing Breakpoints 6.3.7. Text Console Activity Breakpoints
6.4. Debugging Target Software with Symbol Files x
6.4.1. Loading Symbol Files in a Simulation
6.5. Debugging Target Software with Ashling* RiscFree* Debugger x
6.5.1. Remote Debugging with RiscFree* IDE
6.5.1. Remote Debugging with RiscFree* IDE x
6.5.1.1. Remote Debugging With Intel® Simics® Simulation and RiscFree* IDE on the Same System 6.5.1.2. Remote Debugging With Intel® Simics® Simulation and RiscFree* IDE on Different Systems 6.5.1.3. Remote Access to the Target System Serial Console
7. Networking with the Simulated Target System x
7.1. Network Simulation and Service Node 7.2. Connectivity Between Host PC and Target System
7.2. Connectivity Between Host PC and Target System x
7.2.1. Port Forwarding 7.2.2. Transferring Files Between Host PC and Target System 7.2.3. Accessing Target System from Host PC Through HTTP 7.2.4. Networking Commands Reference Table
7.2.1. Port Forwarding x
7.2.1.1. Incoming Port Forwarding 7.2.1.2. Outgoing Port Forwarding
7.2.1.1. Incoming Port Forwarding x
7.2.1.1.1. Example of an SSH Connection with Incoming Port Forwarding
7.2.1.2. Outgoing Port Forwarding x
7.2.1.2.1. Example of SSH Connection With Outgoing Port Forwarding 7.2.1.2.2. Example of SSH Connection via NAPT
7.2.2. Transferring Files Between Host PC and Target System x
7.2.2.1. Transferring Files with SCP service 7.2.2.2. Transferring Files with TFTP service
7.2.2.1. Transferring Files with SCP service x
7.2.2.1.1. Transferring Files With SCP Service via Forwarding Ports 7.2.2.1.2. Transferring Files with SCP from Target System to Host PC via NAPT
7.2.2.2. Transferring Files with TFTP service x
7.2.2.2.1. TFTP Using Forwarding Port 7.2.2.2.2. TFTP via NAPT 7.2.2.2.3. TFTP Using TFTP Server in Intel® Simics® Service Node
8. Intel® Simics® Scripting x
8.1. Scripts in CLI
8.1. Scripts in CLI x
8.1.1. Variables 8.1.2. Command Return Values 8.1.3. Control Flow Commands 8.1.4. Local Variables 8.1.5. Integer Conversion 8.1.6. Accessing Configuration Parameters 8.1.7. Error Handling in Scripts 8.1.8. Script Branches
8.1.8. Script Branches x
8.1.8.1. Script Branches Commands 8.1.8.2. Variables in Script Branches 8.1.8.3. Branch Synchronization 8.1.8.4. Canceling Script Branches 8.1.8.5. Script Branches Restrictions
9. Software Debug Examples with Intel® Simics® Simulator x
9.1. Debugging Linux* User-Mode Application
9.1. Debugging Linux* User-Mode Application x
9.1.1. Debugging a Linux Application with GDB 9.1.2. Debugging a Linux Application with RiscFree* IDE
9.1.1. Debugging a Linux Application with GDB x
9.1.1.1. Debugging with GDB Debug from Host PC Using Forwarding Ports 9.1.1.2. Debugging with GDB from Host PC with Intel® Simics® Simulator GDB Server
1. About This Document
2. Intel® Simics® Simulator and Virtual Platforms
3. Intel® Simics® Simulator for Altera® FPGAs Device Portfolio
4. Installing the Intel® Simics® Simulator for Altera® FPGAs
5. Getting Started with Intel® Simics® Simulator
6. Debugging Target Software
7. Networking with the Simulated Target System
8. Intel® Simics® Scripting
9. Software Debug Examples with Intel® Simics® Simulator
10. Document Revision History for Intel® Simics® Simulator for Altera FPGAs User Guide
A. Intel® Simics® Simulator Command Reference

4.2. Installing the Intel® Simics® Simulator for Altera® FPGAs on Microsoft Windows* Systems

On Microsoft* Windows* systems, Intel® Simics® Simulator for Altera® FPGAs is supported only in a Windows* Subsystem for Linux* 2 (WSL 2 ) environment. Follow the instructions in Installing the Intel Simics Simulator for Altera FPGAs on Linux* Systems to install Intel® Simics® Simulator for Altera® FPGAs in your WSL 2 environment.

Intel® Simics® Simulator for Altera® FPGAs has been evaluated in the following WSL 2 environment:
  • Microsoft* Windows* 11
  • WSL 2 Version 2.1.5.0
  • Ubuntu* 20.04
  • Linux* kernel 5.1.15.146
You can run your Intel® Simics® simulations in a WSL environment in the following ways, depending on you WSL configuration:

WSL Linux GUI Applications

Run the Intel® Simics® Simulator for Altera® FPGAs in the same way as any other Linux GUI application. In this case, the Intel® Simics® GUI and the Simics Serial Console display as new windows on your Windows* desktop when you launch a simulation (whenever this applies). Also, you can install and connect the simulator other support tools (for example, Ashling* RiscFree* IDE for Altera® FPGAs and GDB) in the same way as is described in this user guide.

WSL Command-Line Only

Run the Intel® Simics® Simulator for Altera® FPGAs as command-line only from a WSL command line interface (CLI) as follows:
  1. In one WSL CLI, start the simulation with the simics command as shown in Starting a Simulation from a Command Prompt. This WSL CLI becomes your Simics CLI.
  2. Start a second WSL CLI to use as a serial console. This second WSL CLI uses a remote telnet connection to the simulation in the first CLI. For instructions on setting up the telnet connection, refer to Remote Access to the Target System Serial Console.
  3. If you want to have the simulation running along with an Ashling* RiscFree* IDE for Altera® FPGAs installed on your Windows* system (or any other remote Linux* or Windows* system), set up a remote connection to your simulation running in the first CLI following the instructions in Remote Debugging With Intel Simics Simulation and RiscFree* IDE on Different Systems.

You can run the Intel® Simics® Simulator through WSL 2 showing the Simics GUI and serial console without needing the full installation of a graphical desktop interface. You must have the Linux* gtk+2.0 and the libxxf86vm1 libraries installed in your WSL 2 environment. In this case, run your Simics simulation as usual.

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