ual6

ual6 is a re-implementation of Dennis Ritchie's and Ken Thompson's Unix Version 6 (v6). ual6 loosely follows the structure and style of v6, but is implemented for a modern RISC-V multiprocessor using C programming language.

Installation

MacOS

First, install developer tools:

$ xcode-select --install

Next, install Homebrew, a package manager for macOS:

$ /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

Next, install the RISC-V compiler toolchain:

$ brew tap riscv/riscv
$ brew install riscv-tools

The brew formula may not link into /usr/local. You will need to update your shell's rc file (e.g. ~/.bashrc) to add the appropriate directory to $PATH.

PATH=$PATH:/usr/local/opt/riscv-gnu-toolchain/bin

Finally, install QEMU:

brew install qemu

Installing on Debian

Make sure you are running either "bullseye" or "sid" then run:

sudo apt-get install git build-essential gdb-multiarch qemu-system-misc gcc-riscv64-linux-gnu binutils-riscv64-linux-gnu 

(The version of QEMU on "buster" is too old, so you'd have to get that separately.)

Installing on Arch

sudo pacman -S riscv64-linux-gnu-binutils riscv64-linux-gnu-gcc riscv64-linux-gnu-gdb qemu-arch-extra