rizc-v

A RISC-V emulator written in Zig with the goal of running Linux.

Dependencies

• Grab riscv64-elf-*.tar.gz from riscv-gnu-toolchain releases and add the bin/ folder to PATH to build tests.
• Install libmpc if you don't already have it (non devel package is fine). Required by riscv-gnu-toolchain to build the tests.

Build, Run and Test

Clone with the --recurse-submodules flag to pull riscv-tests as a submodule for testing.

zig build run  # To run the emulator
zig build test # To run tests

TODO

• Unprivileged RV32I core
• Put tests in place
  • Try to compile tests with build.zig instead of riscv-gnu-toolchain
• MAFD extensions
• Privileged RV32I core
• Port OpenSBI
  • Linux needs this
• Port Linux
  • ez ¯\_(ツ)_/¯