BDOS - Copy files to and from PC floppies
(C) 2026-2026 André Fachat
BDOS is a solution I built in 1989, to read and write files from and to PC floppy disks using a Commodore 128 and a 1571 floppy disk. I even made a version for a C64 with hardware modification, and the 1571.
In a recent interview (see here Golem podcast, in German) I got the chance to talk about BDOS. So, I tried to resurrect it from the ... sleep ;-) ... The result is in the video linked below. Also, the sources are now on github, for anyone to reuse.
- 2025-01-05 Started this page
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The current state of the code is on github: https://github.com/fachat/c128_bdos. There you also find the original source (as far as I was able to find back, which is the BDOS+ I published in binary quite some years ago), and you can also see the tools and intermediary steps when re-formatting the source for a modern assembler.
Watch a small demo video here
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Last modified: 2026-01-05