It runs on Mac/Win/Linux and has direct support for building programs for #C64 and #c256foenix machines with serial port debugging (maybe not working on C64, yet). It comes with excellent user manuals for each architecture, this is the 6502 manual: https://tinyurl.com/mw8rfzb5
Interesting, I thought I had done #6502 before but can't find any evidence of it.
Going to have to keep that in mind, thanks.
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