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000266_koehler@eisner…compasserve.org_Fri Jan 1 17:32:28 2010.msg
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Path: reader1.panix.com!panix!newsfeed-00.mathworks.com!news.tele.dk!feed118.news.tele.dk!dotsrc.org!filter.dotsrc.org!news.dotsrc.org!not-for-mail
From: koehler@eisner.nospam.encompasserve.org (Bob Koehler)
Newsgroups: comp.protocols.kermit.misc,comp.os.vms
Subject: Re: Kermit on Itanium VMS
Message-ID: <CkTD8HhjfW7c@eisner.encompasserve.org>
Date: 31 Dec 2009 15:25:56 -0600
References: <dbb54db7-4384-41f5-863a-5b9b579ab87b@s31g2000yqs.googlegroups.com> <41039cdf-a708-489b-8146-986ec706ab5e@p8g2000yqb.googlegroups.com> <9c86a820-511f-4219-aecf-cfd31d9bdbcb@j4g2000yqe.googlegroups.com> <f14854cc-1cae-4b12-8457-f5fcb2c4495b@g26g2000yqe.googlegroups.com> <b901cbf2-227d-4e87-98cf-5e5b08f0be24@g7g2000yqa.googlegroups.com> <4a0e79e9-b366-43c7-a66f-6099a5c5b3a9@v25g2000yqk.googlegroups.com> <slrnhjkm10.odu.fdc@panix1.panix.com> <hhdm0s$eil$5@naig.caltech.edu> <Qrmdnbi9nf6YIabWnZ2dnOrganization: Encompasserve
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In article <Qrmdnbi9nf6YIabWnZ2dnUVZ_jxi4p2d@giganews.com>, "Richard B. Gilbert" <rgilbert88@comcast.net> writes:
>
> Err. . . How about RSX images in compatibility mode on a VAX 11/780 or
> 11/750?
>
> After all these years I have a little difficulty imagining why anyone
> would want to but given sufficient incentives it's possible to do it.
Is the RSX AME still supported under 7.3?
If so, then, yes, it may be possible to run a 40 year old binary
on the latest VMS for VAX.
But that depends on the definition of "run". The AME added
compatability mode emulation when the first VAXen without
compatability mode shipped. I'm fairly sure you could also get
40 year old images to run on SIMH on just about any platform.
So if I have SIMH simulating a PDP-11 on an Itanium, am I "running"
40 year old images on the latest VMS for Itanium?
Or do we require hardware execution of the instructions to at least
the extent that VAX-11 series microcode implemented compatability
mode instructions?