Breadbin466 vs VICE
Breadbin466
github.comVICE
vice-emu.sourceforge.ioSide by side
| Figure | Breadbin466 | VICE |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| Android | — | Yes |
| Plans published | 1 | 1 |
| Spec score · Commodore 64 Emulators | 8.0 (#7) | 8.2 (#6) |
| License | The emulator is licensed under MIT, while the Commodore ROM images distributed with it are explicitly excluded from that license. | VICE is free software distributed under the GNU General Public License version 2 or, at the recipient's option, any later version. |
| Purpose | Breadbin466 is a from-scratch Commodore 64 emulator written in Rust that focuses on accurately modeling one PAL Assy 250466 machine. | VICE runs programs intended for classic 8-bit Commodore computers. |
| Support | Users can send feedback to [email protected] or report reproducible problems through GitHub Issues. | The project directs bug reports, suggestions, and support requests to its SourceForge trackers or team mailing list, and notes development is done in spare time. |
Plans
In their own words
Breadbin466
Breadbin466 is a free Commodore 64 emulator written in Rust, focused on modeling one PAL Assy 250466 machine. Its cycle-driven emulation covers the MOS 6510 CPU and VIC-II video timing and generation, including bus arbitration. The SID sound model draws on a physical datecode 2286 chip and models oscillator, DAC, mixing, and filter behavior. Its Commodore 1541 drive emulation includes a separate CPU, VIAs, mechanics, GCR read channel, IEC communication, fastloaders, and protected-disk behavior. Other modeled hardware includes CIA interfaces, a 1351 proportional mouse, a Datassette with TAP playback and recording, cartridges, and a 512 KB REU. It supports D64, G64, NIB, NBZ, and D7Z disk images, with tools for image creation, conversion, and space reclamation. The integrated debugger provides breakpoints, disassembly, history, and configurable tracing. Native menus and Inspector windows are provided on macOS, Windows, and Linux. Version 0.99.0 is described as feature-complete, with broader testing still remaining before 1.0.
VICE
VICE runs programs made for classic Commodore 8-bit computers by emulating eight systems: C64, C64DTV, C128, VIC20, PET, PLUS4, SCPU64 and CBM-II. It aims for cycle-accurate operation, with 6502/6510 emulation covering documented and undocumented opcodes and precise timing. For C64 software, its emulators reproduce VIC-II video and SID sound, including synchronization, ring modulation and filters. Disk support covers up to four external drives, using disk images, filesystem directories or compatible real devices; joystick input can come from a keyboard or a host-connected joystick. VICE is available on Android, Linux, macOS and Windows, and is free software under GNU GPL version 2 or later. The download page lists Windows builds and macOS builds for Apple Silicon and Intel Macs; the latter require macOS 12.0 or later. Android binaries are listed separately. The manual warns that six systems—the C64DTV, C128, PET, PLUS4, SCPU64 and CBM-II—remain under construction and may be less capable than the C64 or VIC20 emulators.