PApabs3·Oct 9, 2020
There are a couple:
http://blog.notdot.net/2012/10/Build-your-own-FPGA
https://news.ycombinator.com/item?id=24252737
https://github.com/haojunliu/OpenFPGA https://www.eecs.berkeley.edu/Pubs/TechRpts/2014/EECS-2014-4...
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