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<blockquote
cite="midee5521f80709221138tdafd9e0r138bb652f4fbd4cb@mail.gmail.com"
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How hard would it be to get 3230 emulation in...?<br>
<br>
Gee, I'd kill to see Xelos up on a 3230 again...<br>
<br>
It was my first real sysadmin job after I left DEC Field Service...<br
clear="all">
<br>
Probably impossible to get a copy legally or illegally, unfortunately.<br>
It's like Pyramid OS/x, another of my old fun favorites, -- probably
unobtainium.<br>
<br>
<br>
Bill<br>
--<br>
d|i|g|i|t|a|l had it THEN. Don't you wish you could still buy it
now!
<br>
<a href="http://pechter-at-gmail.com">pechter-at-gmail.com</a>
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All in good time. There are quite a few differences between the 8/32
and the 3200 series. The 3220 is much like a 3230 with 8/32 MAC memory
relocation/protection hardware. Doing the 3220 first lets me (almost)
ignore memory management hardware and concentrate on CPU feature
differences. It is a useful way to split the job. Once I finish the
3220 (stalled at the moment, alas) I'll start working on the MAT used
with the 3230/3210/3212, 3240/3250/3260 and 3205/3203 processors.<br>
<br>
For various personal and practical reasons I don't intend to do a VAT
(3280 and newer) implementation at this time. Concurrent still sells
and supports OS/32 and 3200 systems. I know or have met some of the
people involved. Not emulating the VAT prevents the current version of
OS/32 from running on SIMH. The VAT is a complicated and lightly
documented bit of kit to emulate. The same can be said for the MAT, but
the MAT is needed to address more than 1MB of memory and to run some
software. I rather suspect that having done the MAT I'll be ready to do
something else for a while.<br>
<br>
Because Xelos is SVR2, the Unix part of Xelos is not covered by the
"Ancient Unix license". The Perkin-Elmer part, of course, belongs to
Concurrent. Licensing is an issue. Perhaps when the SCO distraction is
over this can be resolved.<br>
<br>
The Edition VII available from bitsavers appears to be the original
version from Wollongong University. It would be nice to have the
Perkin-Elmer commercial release version. It has some additional nice
stuff in it. That also has content that belongs to Concurrent.<br>
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