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Social Forum federato con il resto del mondo. Non contano le istanze, contano le persone

I recently posted a video about the various tilt mechanism an 80s pinball machine has.

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    I should post about the latest #retrocomputing project I started.Problem: I'd like an open-source, self-hosting C compiler on 8086, that supports the large memory model, overlays, and enough C89 to build Lua.This seems to not exist! K&R is much more common in this size category. Around the time of C89, many compilers bloated to the point of requiring a 386 or better host, though they could still target 8086. The 8086 holdouts were, in general, commercial products that never got a source release.One notable exception was DeSmet C http://www.desmet-c.com. It seems to have started life as a commercial PC fork of Bell Labs PCC, a small and sturdy K&R compiler. DeSmet 3.1 added "draft ANSI C" support, but this is incomplete, and riddled with code-gen bugs. This version later found itself on Github as OpenDC https://github.com/the-grue/OpenDC.Aside from all the bugs, this is a pretty cool package: its dis/assembler, debugger, text editor, and some other utilities were also open sourced, and it runs on an 8088 with 256K RAM and two 360K floppies.The OpenDC person did a good job packaging things up into an easily buildable form, and fixing syntax errors that probably came from running the sources through a different compiler version than expected, so... yes, it does indeed build and self-host... and I've done this on my Book 8088.So now I will try to fix the bugs and add the missing C89 features. There are many, many of both... gulp.
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    A free ebook on the history of computers in education in Europe.https://www.degruyter.com/document/doi/10.1515/9783110780147/html#retrocomputing #education #europe
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    @paulrickards you cracked the secret formula! Now tell us the details. TPU settings?
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    🗓️ 7 ottobre 1954 – I ricercatori IBM sostituiscono le valvole termoioniche del calcolatore IBM 604 con i transistor. L’esperimento non rende la macchina più piccola né più veloce, ma ne riduce il consumo energetico al 5% rispetto all’originale. Il successo porta nel 1958 al lancio dell’IBM 608, primo calcolatore commerciale interamente a transistor.@computer #accaddeoggi #retrocomputing #retroinformatica