As you may have read in viewtopic.php?f=2&t=7337 about 6502 assembler in 6502 assembler, Dietrich Lausberg has published his CPM-65 system sources.

Dietrich build an Elektor Junior SBC long ago and expanded it to quite a system. He added hardware Elektor components, floppy and hard disk drives and wrote a CP/M inspired operating system, called CP/M-65, a Basic interpreter, Forth and and a 6502 assembler. Very impressive imho. He still uses and maintains the system!

I discovered his work in a post on the German https://forum.classic-computing.de/forum/ Single board Computers thread on the Junior II (also worth reading about!) and asked Dietrich to publish the system. So he did!

It is small, capable and well maintained. Worth a read:

http://retro.hansotten.nl/6502-sbc/elek ... -emulator/ my intro with some background from emails from Dietrich.

https://github.com/Dietrich-L for his github with sources and an elekterminal emulator.

Hans

I was also very impressed by this system, especially by how complete the software is. It has an assembler that can assemble the system itself, multiple programming languages as you mentioned, and a full suite of utility programs. The GitHub repository (linked above) is well worth checking out.

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- Mike Naberezny (mike@naberezny.com) http://6502.org

Thanks Hans for the article and for encouraging Dietrich!