gcc: add more in-memory registers #51

	name: PDP-1 Playground
	on: [push]
	jobs:
	Test-Toolchain:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout pdp1-playground
	uses: actions/checkout@v3
	with:
	submodules: recursive

	- name: Install dependencies
	run: \|
	sudo apt-get update
	sudo apt-get install -y git build-essential flex bison texinfo libgmp3-dev libmpfr-dev libmpc-dev simh dejagnu

	- name: Build binutils-gdb for PDP-1
	run: \|
	cd pdp1-binutils
	./configure --target=pdp1-elf --disable-sim
	make -j $(nproc)
	sudo make install

	- name: Build gcc for PDP-1
	run: \|
	# gcc doesn't support running `./configure` in the source directory
	mkdir -p build-gcc
	cd build-gcc
	../pdp1-gcc/configure --target=pdp1-elf --enable-languages=c --disable-bootstrap
	make -j $(nproc) all-gcc

	- name: Build samples
	run: \|
	for sample in asm-*; do make -C $sample clean main.rim; done
	for sample in c-*; do make -C $sample clean main.s main.rim; done

	- name: Run tests
	run: \|
	runtest --srcdir $(pwd)

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