[Info-vax] Goodbye VAX

Arne Vajhøj arne at vajhoej.dk
Fri Dec 31 08:23:18 EST 2021


On 12/31/2021 5:58 AM, Simon Clubley wrote:
> Today is the last day for VAX systems unless you have a permanent licence.
> 
> It was a good architecture for its time, but I doubt we will ever see
> something like it again. The world has moved very much to a 2-mode KU
> architecture approach (with operating systems designed to match)

Sounds likely. If not counting hypervisor mode!

>                                                              and
> also very much away from the CISC approach with all the complex
> instructions in hardware that VAX had.

VMS is being ported to a CISC architecture.

x86-64 got some pretty complex instructions (math, AES, vector etc.).

Arne







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