optimisation: calculate steps per unit reciprocal at compile time #93

	name: ci-build

	on:
	pull_request:
	branches:
	- '*'
	push:
	branches: [ main, MMU_* ]
	tags:
	- "v*"

	jobs:
	build:
	runs-on: ubuntu-latest

	steps:

	# setup base required dependencies
	- name: Setup dependencies
	run: \|
	sudo apt-get update
	sudo apt-get install cmake ninja-build python3-pyelftools python3-regex python3-polib

	# Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
	- name: Checkout ${{ github.event.pull_request.head.ref }}
	uses: actions/checkout@v4
	if: ${{ github.event.pull_request }}
	with:
	ref: ${{ github.event.pull_request.head.sha }}
	submodules: true

	- name: Checkout ${{ github.event.ref }}
	uses: actions/checkout@v4
	if: ${{ !github.event.pull_request }}
	with:
	ref: ${{ github.event.ref }}
	submodules: true

	- name: Cache Dependencies
	uses: actions/cache@v4.0.0
	id: cache-pkgs
	with:
	path: ".dependencies"
	key: "build-deps-1_0_0-linux"

	- name: Setup build dependencies
	run: \|
	./utils/bootstrap.py

	- name: Cache permissions
	run: sudo chmod -R 744 .dependencies

	- name: Build
	run: \|
	mkdir build
	cd build
	cmake .. -DCMAKE_TOOLCHAIN_FILE="../cmake/AvrGcc.cmake" -DCMAKE_BUILD_TYPE=Release -G Ninja
	ninja

	- name: Upload artifacts
	if: ${{ !github.event.pull_request }}
	uses: actions/upload-artifact@v4
	with:
	name: Firmware
	path: build/*.hex

	- name: RELEASE THE KRAKEN
	if: startsWith(github.ref, 'refs/tags/v')
	uses: "marvinpinto/action-automatic-releases@latest"
	with:
	repo_token: "${{ secrets.GITHUB_TOKEN }}"
	draft: true
	files: \|
	build/autopublish/*.hex

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