[Info-vax] VMS Software needs to port VAX DIBOL to OpenVMS X86 platform

[Comp.os.vms]

> -----Original Message-----
> From: Info-vax <info-vax-bounces at rbnsn.com> On Behalf Of 1tim....--- via
> Info-vax
> Sent: December-23-20 11:27 PM
> To: info-vax at rbnsn.com
> Cc: 1tim.... at gmail.com <1tim.lovern at gmail.com>
> Subject: Re: [Info-vax] VMS Software needs to port VAX DIBOL to OpenVMS
> X86 platform
> 
> My bad, call it faulty memory... was pretty certain that there was a
> compelling architecture and OS that was to take over after the PDP-11. It
got
> killed and VMS was pushed. Cutler started out on the other and was moved
> to VMS. This was around '72 / 73 -ish that it was started. I believe it
was akin
> to TOPS, but 32 bit instead of 36. Oh well, won't be the first thing I
mis-
> remember from those days....
> 
> On Wednesday, December 23, 2020 at 11:54:02 AM UTC-7, Stephen Hoffman
> wrote:
> > On 2020-12-23 17:41:24 +0000, 1tim.... at gmail.com said:
> >
> > > I stand corrected. MICA was his baby and a lot of it found its way
> > > into VMS, more of it found its way into NT
> > Work on MICA started well after VAX/VMS was available.
> >
> > IIRC, with work on VAXELN also happening between VAX/VMS and MICA.
> >
> > MICA was intended to address various of what had been learned from
> > designing and building VAX/VMS.
> >
> > Little (none?) of MICA was retrofit or otherwise found its way into
> > VAX/VMS; into what was later renamed OpenVMS. DEC management
> decisions
> > largely prevented that work from happening.
> >
> > It would have been interesting to see OpenVMS replaced with MICA, with
> > the existing environment kept around as a subsystem for compatibility
> > with existing apps. There'd be other work needed to update MICA for
> > better contending with more current hardware and limits and tooling
> > and expectations. That work seems unlikely, given the current finances
> > and expectations and the current market for operating systems. And VSI
> > doesn't have MICA source code, and anybody that does have that source
> > code is unlikely to share it.
> >
> > For those interested, there's an archive of some contemporary
> > documentation and memos for PRISM and MICA here:
> > http://www.bitsavers.org/pdf/dec/prism/
> > --
> > Pure Personal Opinion | HoffmanLabs LLC
> _______________________________________________

Additional info - Thanks to some nice earlier postings from Neil -
<http://www3.sympatico.ca/n.rieck/docs/Windows-NT_is_VMS_re-implemented.html
#forward>

<http://www3.sympatico.ca/n.rieck/docs/dave_cutler-prism-mica-emerald-etc.ht
ml>

Regards,

Kerry Main
Kerry dot main at starkgaming dot com







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