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Kai Robinson posted a topic in Hacks & DevelopmentHow many Custom Apple ASIC's are there? Hundreds, i bet! But, what i'm interested in, is the simpler stuff - in this case, the BBU, the SWIM, SND and RTC Chip from the SE to start with. Who's seen Ken Shirriff's blog posts before? The guy is nuts, but in the best possible way - take a look: https://www.righto.com/2020/08/reverse-engineering-8086s.html This is the sort of thing i'd like to do with the custom ASICS, but i don't want to sacrifice working ones if i can help it - so...if anyone has any one of the aforementioned chips that are DEAD - please could you donate them to me so i can have them imaged? The more chips of each type i can source, the easier it'll be to image, and ultimately, reverse engineer. One of the guys who's working in the same group as me on discord, for the A500++ project, Johan has been reverse engineering the Commodore C128 PLA in his spare time and has developed a process to decap and image most, if not all, of the die itself, so it can be analyzed. I may reach out to a few other people who might be interested, as well - but yes, this is the general idea. Of course join in, if you have the expertise! This gives a good overview of the process, and the site also has a collection of commonly available die shots for analysis. https://siliconpr0n.org/wiki/doku.php?id=delayer:wet And here's an example of Johan's work: https://chips.c128.se/8521R0/index.html