Commodore 64 Original Operating System Kernel Disk Found #VintageComputing #Commodore

On Twitter, Chorlton’s Wheelies (@8bitdac) posts:

Whilst we are at it, behold the *original* C64 Kernal source disc (compiled on a PET) from Dennis Jarvis (software engineer at CBM). All your C64s are based on this disc.

Wow, this is a special disc! So C64 software was developed on a PET computer, that’s interesting too.

If you’re interested in original vintage Commodore development history, he later writes:

This is the site in which the disk is discussed http://6502.org/users/sjgray/dj and here is the same disk as a .d64 http://6502.org/users/sjgray/dj/dj-d64.zip , then you can assemble it all using a PET emulator using instructions here https://www.pagetable.com/?p=894

Check out the first link to Dave Jarvis’ material, it’s a treasure trove. And if you are looking on exactly how to make the Commodore logo:

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