RISC-V CSR Access Routines

RISC-V System Register Access Routines in various languages.

For more information see https://five-embeddev.com/quickref/csrs-access.html

The register acccess funtions and classes are generated from templates based on a yaml definition file.

Files:

• include/riscv-csr.h: C using macros.
• include/riscv-csr.hpp: C++ using an a class interface.
• rs/riscv_csr_macros/src/riscv_csr_macros.rs: Rust using macros.

Generators:

• templates/* : Jinja2 template files used to generate include/*
• templates/riscv_csr_filters.py : Helper functions for templates.
• extern/development-utils/generators/yaml_jinja.py : Program used to generate source code. See https://github.com/nakane1chome/development-utils.
• extern/riscv-isa-data/csr.yaml : CSR definitions. See https://five-embeddev.com/quickref/csrs.html.

Examples:

• examples/test_csr.c : Example of using riscv-csr.h
• examples/test_csr.cpp : Example of using riscv-csr.hpp
• rs/riscv_csr_macros/examples/test_csr.rs : Example of using riscv_csr_macros.rs