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romdev-core-vice

v0.12.0

Published

VICE x64 libretro core (Commodore 64) for romdev, bundled as WASM.

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Maintainers

monteslumonteslu

Keywords

Readme

romdev-core-vice

VICE (x64) - Commodore 64 emulator core (libretro), as WebAssembly.

A binary package for romdev - it ships the prebuilt WebAssembly + JS glue and is resolved by the main romdev package on demand. You normally install romdev, not this package directly.

C64 ROMs: free replacements, bundled

This core is built without USE_EMBEDDED, so it carries none of Commodore's KERNAL, BASIC or CHARGEN ROMs. Upstream vice-libretro embeds them; VICE's own README marks them "Copyright C by Commodore Business Machines", and the GPL covers VICE's code rather than those ROMs.

Instead this package ships MEGA65 Open ROMs in roms/ - a clean-room, dual GPL-3.0/LGPL-3.0 KERNAL+BASIC+CHARGEN written so emulators can ship a working C64 legally. The host installs them automatically, so the C64 boots with zero setup.

The files are named after Commodore's part numbers (kernal-901227-03.bin and friends) because VICE resolves ROM images by those exact names. The contents are Open ROMs; see roms/README.md.

Using your own ROMs

Open ROMs is a reimplementation, not a bit-exact clone - upstream's BASIC is notably incomplete. If you own the originals, point ROMDEV_C64_ROM_DIR at a directory containing kernal-901227-03.bin, basic-901226-01.bin and chargen-901225-01.bin; that overrides the bundled set.

Upstream & license

Bundles: VICE.

License: GPL-2.0-or-later

This package redistributes the upstream binary built to WebAssembly; the source is fetched from a pinned upstream commit at build time (see the romdev repo's scripts/versions.json and BUILDING.md). See the romdev repo NOTICE for the full third-party inventory.

Built by: romdevtools/scripts/build-vice.sh + patch(es) vice-romdev-memory-regions.patch. See scripts/BUILD_MAP.md in the romdev repo for the full recipe→package map.