simavr

Haven't played with these yet, but they do look interesting. Might have also to add support for the new IO blocks in my AVR simulator simavr[0] -- I still use the AVR a lot, since they have no pipeline and other fancy CPU optimization, they are 'cycle accurate' and are a lot closer to a PIO than most other more complex 32 bit CPUs.. Now that they ALSO have an equivalent to PIO it might even help with reaching faster IO speed when toggling pins. [0]: https://github.com/buserror/simavr

I wrote my own pet Apple IIe emulator for linux fairly recently [0]. It works fairly well, even if it doesn't try to emulate an exact cycle accurate 'pixel' video modes, instead, it 'cheats' and do it line by line. I think it is a good tradeoff between quality of emulation and CPU spent doing it... Only some demos will fail to display properly (mostly the ones changing video mode during line displays!), all the games and tools and applications I tried works just fine. I mostly did my emu due to the rather poor quality I found for linux emulators I've seen, the 'goto' one is linapple, but the codebase is rather crusty.. I wanted a cleaner base to hack on, without the baggage -- more in the style of my own AVR emulator [1]. I've got a very big patchset to push 'soon' with a new UI library (that will be a topic of its own!) and a bunch of ne