SNES SPC700 Player + Improved SNESAPU.DLL

This fork carries an unofficial macOS port of SPCplay/SNESAPU alongside the original Windows source. The original project is maintained by dgr-factory at https://github.com/dgrfactory/spcplay.

The macOS port currently includes:

• A native AppKit SPCplay-style UI in tools/spcplay_macos.mm
• Universal macOS app build scripts in scripts/
• An Intel Mac x86_64 backend built from the original SNESAPU assembly ported to Mach-O 64-bit
• A native Apple Silicon arm64 SNESAPU backend in snesapu.arm64/
• Finder/open-with, drag-and-drop, live playback, playlist controls, metering, settings menus, and WAV export support

Build native or universal macOS app bundles with:

./scripts/build-spcplay-macos-app.sh x86_64
./scripts/build-spcplay-macos-app.sh arm64
./scripts/build-spcplay-macos-app.sh universal

The x86_64 slice targets macOS 10.9 and later, preserving the faithful SNESAPU assembly core for Intel Macs. The arm64 slice targets macOS 11.0 and later with a native Apple Silicon backend that has been checked against the Intel path for byte-for-byte WAV output parity across the current regression corpus. The universal build combines both slices into one .app bundle.

See PORTING_MACOS.md and ARM64_PORTING_PLAN.md for porting notes and validation history.

macOS Downloads

Binary app releases for this fork live here:

• https://github.com/jonkubis/spcplay/releases

The release zip contains spcplay-macos.app as a universal Intel/Apple Silicon bundle. Current builds are ad-hoc signed, not notarized, so macOS Gatekeeper may require manual approval the first time the app is opened.

macOS Release Automation

The repository includes a GitHub Actions workflow at .github/workflows/macos-build.yml. Every run builds spcplay-macos.app as a universal Intel/Apple Silicon app bundle and uploads a spcplay-macos-universal.zip artifact.

To publish a binary in GitHub Releases, push a version tag:

git tag v2.21.3-macos.1
git push origin v2.21.3-macos.1

The tagged workflow attaches spcplay-macos-universal.zip and its SHA-256 file to this fork's GitHub Release page.

Original Windows Project

The "SNES SPC700 Player" is a very simple SPC player for Windows based on SNESAPU.
For more information about this software, please see the wiki page.

Upstream Windows project links:

• Official website: https://dgrfactory.jp/spcplay
• Official repository: https://github.com/dgrfactory/spcplay

License

GNU General Public License v2.0