The Commodore 1581 is a 3,5 inch drive with serial bus connection. The drive used a normal MFM controller and a double density drive mechanism.


3rd party modifications to the 1581 ROM.


1563-rom.bin 2009-08-18 32768
ROM from a C128D / 81 with "1563" board inside.
1581-rom.318045-01.bin 2009-08-18 32768
System firmware, first version. This chip has also been numbered 312558-01.
1581-rom.31 45-02.bin 2009-08-18 32768
System firmware, second version.
1581-rom.beta.bin 2009-08-18 32768
This is said to be a beta version of the 1581 system firmware.
1581.zip 2009-08-18 127492
Source Code
1581ref.txt pan class="date">2009-08-18 10002
1581zp.txt 2009-08-18 11022
A few cross-references for the 1581 firmware 318045-01, created by Asger Alstrup <alstrup@diku.dk>.

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