Software

Repository

Our mercurial-repository with the complete sources for BIOS, SteckOS, firmware (keyboard controller, memory decoder source (GAL)), and full schematics and board layouts as KiCad-projects.

https://bitbucket.org/steckschwein/steckschwein-code

Tools

We almost exclusively use Open Source-Software to design and code for the Steckschwein.

  • cc65 – http://cc65.github.io/cc65/
    Extensive suite of cross development tools for almost every 6502 based platform. We mostly use ca65 because of the linker. Also, we have a few tools written in C.
  • KiCad – http://kicad-pcb.org/
    Powerful eda suite once you get the hang of it. We use it for all things hardware.
  • GALasm – https://github.com/daveho/GALasm
    Our GAL-based address decoding logic and our wait state generator logic are defined using GALasm, which is an ancient tool, but still very useful.
  • py65mon – https://github.com/mnaberez/py65
    We use it’s 6502-emulator/simulator for automated testing using unit tests.
  • Acme – https://sourceforge.net/projects/acme-crossass/
    Very nice 65xx crossassembler for almost every platform. We used ACME in the beginning, but moved on to ca65 from the cc65 suite. We still use it for quick-and dirty stuff.