[jamesaross]

John Gustafson is on the board of Rex Computing, a small semi startup. They claim to have taped out last year, but I don't know if the chip has been validated or if it had posits in silicon, but I know that is one of their longer term goals.

I find Gustafson's UNUMS 2.0 more compelling than the first version.

[trsohmers]

Founder of REX Computing here, we taped out in July of 2016 and got our silicon brought up and working back in February. I gave a talk at Stanford showing our hardware and a tiny bit of software: https://www.youtube.com/watch?v=ki6jVXZM2XU

Type 2 unums are pretty much entirely deprecated by type 3 unums (now given the name 'posits' as referred to in the OP's linked paper)... they are basically superior in every way, and I recommend watching John's February 2nd talk at Stanford.

[deepnotderp]

Does the Rex Neo have posits?

[nayuki]

John's presentation more or less mirrors the topics covered in the paper: https://www.youtube.com/watch?v=aP0Y1uAA-2Y