Mastodawn

The Swedish computer club #PD68 built Motorola 6809 and 68k-based systems in the 80s. One of these systems, based on a 68k-based CPU board designed in Norway, runs the Idris OS, the first Unix clone.

I’ll give a talk on Idris and the PD68 machine next SATURDAY (April 11) – not! Friday as I wrote – at 19:00 at Update dataföreningen in Uppsala. I‘ll show the (non functional) PD68 machine and an Atari ST emulator running Idris!

https://wiki.dfupdate.se/

#MC68000 #uppsala #retrocomputing @dfupdate

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Resuna

@me_ @dfupdate

Technically Idris was explicitly not a Unix "clone" because they were concerned about violating Bell Labs copyright on the Unix Programming Manual, and made many small changes to make it clear that it was a separate language and operating system. For example they replaced printf with putfmt...

This is not to say that Idris was not amazing.

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Michael Engel 10h ago

@resuna @dfupdate The libc function names were different – however, the Idris system calls were mostly identical to 6th Edition Unix, down to the syscall, signal and errno numbers and the missing "e" in creat(2) 🙂 .