pito_riscv

A pito version of rv32i

How to Run:

First make sure the simulator is available in your dev environemtn. Currently we support ModelSim, QuestaSim and Vivad. Example for Vivado 2021.1:

source /opt/Xilinx/Vivado/2021.1/settings64.sh

Then make sure you have fusesoc installed:

python3 -m pip install fusesoc

Then add pito to your fusesoc libraries:

git clone https://github.com/hossein1387/pito_riscv.git
cd pito_riscv
git submodule update --init
fusesoc library add pito .

Then run simulation (No GUI):

fusesoc run --target=sim pito

For synthesis:

fusesoc run --target=synth pito

To open sim in GUI mode:

cd build/pito_0/sim-vivado/ 
make run-gui

And for synthesis:

cd build/pito_0/synth-vivado/ 
make build-gui

This should open the project for you. Make sure you have run simulation or synthesis atleast once, otherwise fusesoc would not create a project file for you.

Running RISC-V Regression Tests:

You can verify functionaloty of pito by running RISC-V's RV32I regression tests. To do so, you need to have a RISC-V compiler. Once that is installed, follow these steps:

cd csrc/riscv_test_regression
python riscv_test_regression.py
cd ../..
fusesoc run --target=sim-regression --tool modelsim pito

This will run all the RV32I tests back to back. At the end, you should see the result of the regression test.

Publication

If you liked this project, please consider citing our paper:

@INPROCEEDINGS{9114581,
  author={AskariHemmat, MohammadHossein and Bilaniuk, Olexa and Wagner, Sean and Savaria, Yvon and David, Jean-Pierre},
  booktitle={2020 IEEE 28th Annual International Symposium on Field-Programmable Custom Computing Machines (FCCM)}, 
  title={RISC-V Barrel Processor for Accelerator Control}, 
  year={2020},
  volume={},
  number={},
  pages={212-212},
  doi={10.1109/FCCM48280.2020.00063}}
  
  @INPROCEEDINGS{9401617,
  author={AskariHemmat, MohammadHossein and Bilaniuk, Olexa and Wagner, Sean and Savaria, Yvon and David, Jean-Pierre},
  booktitle={2021 IEEE International Symposium on Circuits and Systems (ISCAS)}, 
  title={RISC-V Barrel Processor for Deep Neural Network Acceleration}, 
  year={2021},
  volume={},
  number={},
  pages={1-5},
  doi={10.1109/ISCAS51556.2021.9401617}}