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Sdltrs rom files4/24/2023 ![]() TRS-80 emulation isn’t as popular as many of the other platforms I’ve worked with, and the open source options are very thin on the ground. Still, I poked around a bit with it, and there’s enough for a platform guide and a couple of surprises lurking behind its unassuming shell. Any project that would be a good fit for it would generally be a better fit for some other platform I have more experience and history with. Very little is unique and interesting about the TRS-80, technologically, so there isn’t much to say about it.Emulation support for the TRS-80 is pretty weak, with very little freeware tooling and even less open-source.The PET, meanwhile, grew into the VIC-20 and the Commodore 64, with some level of binary compatibility, so while I haven’t worked with the PET line per se I’ve done many things that translate directly to it. While I never had an Apple II growing up but they were a major part of my formal education as a youth. I have no history with it or any of its successors.There are some good reasons for this neglect: ![]() The other two are the Commodore PET, which we’ve touched upon extremely briefly, and the TRS-80, which we have not worked with at all. The Apple II was part of what BYTE magazine called the “1977 Trinity” of home computers, and it was, in their estimation, the first set of “real” home computers. The exceptions have been systems from the late 1970s that stayed relevant into the mid-to-late 1980s: the Atari 2600, the Atari 800, and the Apple II. The old computers I’ve worked with over the years here have been from a very particular era-the early 1980s, at a point where home machins start getting the ability to do real-time graphics with pixel-level control over the display (though perhaps not at the same time).
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