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A graphical processor simulator and assembly editor for the RISC-V ISA


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Ripes is a visual computer architecture simulator and assembly code editor built for the RISC-V instruction set architecture.

Got questions or comments? Head over to the Ripes Gitter chat.
Report bugs, issues or feature requests at


Ripes may be used to explore concepts such as:

  • How machine code is executed on a variety of microarchitectures
  • How different cache designs influence performance
  • How assembly code is assembled to executable machine code

If this is your first time using Ripes, please refer to the introduction.
For further information, please refer to the Ripes wiki.

Downloading & Installation

Prebuilt binaries are available Windows through the Releases page.


For Windows, the C++ runtime library must be available (if not, a msvcp140.dll error will be produced). You most likely already have this installed, but if this is not the case, you download it here.


You may also build the program from source code instead of using prebuilt binaries.

Initially, the following dependencies must be made available:

  • A recent (5.10+) version of Qt + Qt Charts (not bundled with Qt by default, but can be selected during Qt installation)
  • CMake

Then, Ripes can be checked out and built as a standard CMake project:

git clone --recursive
cd Ripes/
cmake .
Unix:               Windows:
make                jom.exe / nmake.exe / ...

Note, that you must have Qt available in your CMAKE_PREFIX_PATH. For further information on building Qt projects with CMake, refer to Qt: Build with CMake.

In papers and reports, please refer to Ripes as follows: 'Morten Borup Petersen. Ripes.', e.g. using the following BibTeX code:

	author = {Morten Borup Petersen},
	title = {Ripes},
	howpublished = "\url{}"

Icons kindly provided by Flaticon authors: Smashicons, Freepik, Vectors Market & Pixel Buddha.


A graphical processor simulator and assembly editor for the RISC-V ISA









  • C++ 84.7%
  • Assembly 13.4%
  • Other 1.9%