opencbm ☆
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Description:
Provides access to various floppy drive formats
Type: Formula  |  Tracked Since: Dec 28, 2025
Links: Homepage  |  formulae.brew.sh
Category: Other
Tags: commodore retro-computing disk-imaging hardware-interface c64
Install: brew install opencbm
About:
OpenCBM is a suite of tools and libraries designed for accessing and manipulating Commodore 1541/1571/1581 disk formats. It provides low-level command access to compatible floppy drives connected via XU1541, XUM1541, or ZoomFloppy hardware interfaces. This enables precise control for reading, writing, and verifying legacy disk images on modern systems.
Key Features:
  • Command-line utilities for disk image management (cbmcopy, cbmforcon)
  • Support for XU1541, XUM1541, and ZoomFloppy hardware interfaces
  • Cross-platform library (Linux, Windows, macOS)
  • Low-level access to Commodore 1541/1571/1581 drives
Use Cases:
  • Preserving and restoring legacy Commodore 64/128 software archives
  • Writing modern disk images to authentic floppy media
  • Developing hardware interfaces for vintage computer systems
Alternatives:
  • ZoomFloppy – Hardware device often used in conjunction with OpenCBM; OpenCBM provides the software stack to drive it.
  • X1541 – Alternative cable/hardware interface; OpenCBM supports similar devices but focuses on the software protocol implementation.
Version History
Detected Version Rev Change Commit
Oct 10, 2024 3:50pm 0 VERSION_BUMP f5367cd6
Sep 11, 2024 6:35am 0 VERSION_BUMP e5ba4907
Aug 2, 2024 5:42pm 0 VERSION_BUMP 445b1dbb
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