Adding companion main class to generate GCD.v verilog source #122

	name: Continuous Integration

	on:
	push:
	tags: ['*']
	branches: ['main']
	pull_request:
	workflow_dispatch:

	env:
	verilator-version: v5.012
	verilator-install-dir: verilator-install

	jobs:
	ci:
	name: ci
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v4
	- name: Cleanup
	run: sed -i "s/%NAME%/test/g" build.sc
	- name: Cache Scala
	uses: coursier/cache-action@v6
	- name: Setup Scala
	uses: coursier/setup-action@v1
	with:
	jvm: adopt:11
	apps: sbt mill
	- name: Setup Dependencies
	run: \|
	sudo apt-get install ccache
	- name: Get Cached Verilator
	id: get-cached-verilator
	uses: actions/cache@v4
	with:
	path: ${{ env.verilator-install-dir }}
	key: verilator-${{ env.verilator-version }}
	- name: Install Verilator
	if: steps.get-cached-verilator.outputs.cache-hit != 'true'
	run: \|
	sudo apt-get install git help2man perl python3 make autoconf g++ flex bison numactl perl-doc libfl-dev
	git clone https://github.com/verilator/verilator
	unset VERILATOR_ROOT
	cd verilator
	git checkout ${{ env.verilator-version }}
	autoconf
	./configure --prefix=$(pwd)/../${{ env.verilator-install-dir }}
	make
	make install
	- name: Set PATH
	run: \|
	echo "$(pwd)/${{ env.verilator-install-dir }}/bin" >> $GITHUB_PATH
	echo VERILATOR_ROOT="$(pwd)/${{ env.verilator-install-dir }}/share/verilator" >> $GITHUB_ENV
	ln -sf $(pwd)/${{ env.verilator-install-dir }}/bin/verilator_bin $(pwd)/${{ env.verilator-install-dir }}/share/verilator/verilator_bin
	- name: SBT Test
	run: sbt test
	- name: mill Test
	run: mill _.test

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