PDP-11/83 w/FPU?

Holm Tiffe holm at freibergnet.de
Wed Apr 17 22:34:52 CDT 2019

W2HX via cctalk wrote:

> ?Hi friends. I am putting together a PDP-11 set up. i have a few CPUs available to me, a 11/23+, an 11/73 and I also have available to me an 11/83, M8190-AE .
> I would like to try to run as many different OS's as may interest me, including some unixes as possible (bsd...etc).  My question is, are there any OSes that need the floating point option?
> Another question is, would I see any improvement in performance with the FPU compared to without it? Or does the application running need to be something like fortran to see any perceivable difference?
> Thanks

2.11BSD needs it. There is an peace of emulator software in it, but as
far as I know it never really worked.


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