Ultrix for DECstations

[Patrick Finnegan]

On Thursday 10 November 2005 12:07, Dan Williams wrote:
> On 10/11/05, Sridhar Ayengar <ploopster at gmail.com> wrote:
> > Dan Williams wrote:
> > >>It's really too bad that DEC never released a version of VMS for
> > >>DECstation.  I'd be all over that.
> > >>
> > >>Peace...  Sridhar
> > >
> > > The 3000/ 300, 400, 500 and 500x all run Openvms Alpha. Up to
> > > which version I don't know, but I would assume current.
> >
> > That's fine for Alphas, but DECstations are MIPS.
> >
> > Peace...  Sridhar
>
> The Decstation 3000 range where Alphas, they had a 21064 chip.

No, those were "DEC 3000"s.  DECstations (3000/5000/etc) were all MIPS.

And, from what I've heard, at least one reason that DEC made Alpha, and 
didn't port VMS to the MIPS architecture, is because they'd have to 
make a lot of changes to VMS, because of its security model, in order 
to make it work with MIPS.  Aparently, MIPS just didn't work enough 
like a VAX CPU to easily port VMS to it.

Pat
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