lxr02-recomp

the erica synths / sonic potions LXR-02 firmware in the browser. alpha. erica's open source code (unmodified, her compiler flags) built for cortex-m7, then translated instruction by instruction to wasm. output is bit identical to the same build on qemu's cortex-m7.

• upstream/ the firmware (submodule)
• 2.engine/ virtual board under the firmware, qemu reference runs
• 3.recomp/ arm elf to c to wasm
• 4.web/ the page

run: uv run gunicorn app:app

gpl-3.0

build

needs the arm gnu toolchain 14.3.rel1 (ARM_TOOLCHAIN=<its bin dir>), cmake, ninja, emscripten, uv, mtools, qemu (tests). the blank card is made with macos hdiutil.

git clone --recursive https://github.com/gregsadetsky/lxr02-recomp && cd lxr02-recomp
cmake -S upstream/lxr-desktop-app -B build-fw/release -G Ninja -DCMAKE_BUILD_TYPE=Release \
  -DCMAKE_EXPORT_COMPILE_COMMANDS=ON -DARM_TOOLCHAIN_DIR=$ARM_TOOLCHAIN
cmake --build build-fw/release              # erica's build: the source list and per file flags
2.engine/tools/mkcard.sh 2.engine/cards/blank-fat32-64m.img
2.engine/tools/mkcard-kit.sh 2.engine/cards/blank-fat32-64m.img 2.engine/cards/src/04-zippe.snd 2.engine/cards/kit-zippe.img
2.engine/tools/mkcard-project.sh 2.engine/cards/blank-fat32-64m.img 2.engine/cards/web.img 2.engine/cards/src/web/*.snd
2.engine/build.sh arm && 4.web/build.sh     # -> 4.web/site

tests: 2.engine/check.sh (translation vs qemu golden hashes, check.sh update makes them), 3.recomp/test/build.sh (fp instructions, qemu vs translation), and per scenario cd 2.engine && ./run.sh qemu kit-zippe && ./run.sh recompw kit-zippe && ./compare.sh kit-zippe qemu recompw