Commodore Disk Directory Structure #Commodore #VintageComputing
Tynemouth Software digs into the Commodore disk directory structure.
I am sure any Commodore user is very familiar with typing LOAD “$”,8 and then LIST but what exactly is going on when you do that?
I wanted to add a file browser to the Penultimate +2 Cartridge so I looked for more information. I have several very thick and weighty tomes about Commodore disk drives, but none of them seemed to go into any detail about the directory format, so time to do some digging.
I started doing this on the VIC20, since it seemed appropriate, but the way this is handled in Commodore DOS is pretty much unchanged in all the 8 bit machines. I’ve gone back to the PET because that’s where it all started, and it is easier to see what is going on with a 40 column screen.
See more in the post here and demonstrated within the video below.
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