Breadbin466 vs C64 by ChronoCoders
Breadbin466
github.comC64 by ChronoCoders
github.comSide by side
| Figure | Breadbin466 | C64 by ChronoCoders |
|---|---|---|
| Price from | Free | — |
| Free plan | Yes | — |
| Free trial | — | — |
| Open source | — | — |
| Windows | Yes | Yes |
| macOS | Yes | — |
| Linux | Yes | Yes |
| Plans published | 1 | 0 |
| Spec score · Commodore 64 Emulators | 8.0 (#7) | 7.6 (#10) |
| Disk drive | The cycle-driven Commodore 1541 emulation includes its own CPU, VIAs, mechanics, GCR read channel, IEC communication, fastloaders, and protected disk behavior. | The 1541 drive supports LOAD, SAVE, and NEW, with disk changes written back to the .d64 file on clean exit. |
| License | The emulator is licensed under MIT, while the Commodore ROM images distributed with it are explicitly excluded from that license. | The repository source code is available under the MIT License, which grants use without charge and disclaims warranties. |
| Purpose | Breadbin466 is a from-scratch Commodore 64 emulator written in Rust that focuses on accurately modeling one PAL Assy 250466 machine. | C64 is a cycle-accurate Commodore 64 and 1541 disk-drive emulator written from scratch in C11. |
| Sound | Its MOS 6581R4AR SID model is based on characterisation of a physical datecode 2286 chip and models oscillator, DAC, mixing, and filter behavior. | The SID 6581 model includes oscillators, four waveforms, sync, ring modulation, ADSR, a multimode filter, and 44.1 kHz resampling. |
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.
C64 by ChronoCoders
C64 by ChronoCoders has no write-up on Specifiction yet; its figures are above.