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- Newsgroups: comp.unix.amiga
- Path: sparky!uunet!elroy.jpl.nasa.gov!usc!sol.ctr.columbia.edu!The-Star.honeywell.com!umn.edu!uum1!gw.digibd.com!rogue.digibd.com!rhealey
- From: rhealey@rogue.digibd.com (Rob Healey)
- Subject: Re: Unix for my A4000?
- Message-ID: <C1ACBy.3oz@gw.digibd.com>
- Sender: news@gw.digibd.com (USENET News)
- Nntp-Posting-Host: rogue.digibd.com
- Organization: DigiBoard Incorporated, Eden Prairie, MN
- References: <2142@vall.dsv.su.se> <93020.013311CTLCC@CUNYVM.BITNET> <3116.2b5eca41@vger.nsu.edu>
- Date: Sat, 23 Jan 1993 02:31:07 GMT
- Lines: 35
-
- In article <3116.2b5eca41@vger.nsu.edu>, r_moore@vger.nsu.edu writes:
- |> In article <93020.013311CTLCC@CUNYVM.BITNET>, <CTLCC@CUNYVM.BITNET> writes:
- |> > Currently Unix will not work on 68040 based machines. CBM isn't upgrading UNix
- |> > to work on them either. Thats what they are telling the dealers.
- |> According to my dealer, Video Computer Resource Chesapeake VA, they have
- |> begun working on the '040 version
- |>
- Were's the official C= representitive that will explicitly state
- this? This is still rumor mill if it comes from a dealer.
-
- C= itself doesn't have the in house talent to do an '040 UNIX port
- although there has been a person who's been trying to get things moving.
-
- If an '040 port IS being worked on then it must be contracted out to
- a third party. Anybody have any idea who that might be? Hopefully
- they'll profile and tune the kernel in addition to adding the
- '040 VM module. It would be interesting to see how they handle
- the page table problem inherent in the '040, you have to have
- the whole smash in memory as opposed to the partially in memory
- capability of the 68885(?) and '030. I know the 4k page size
- problem was licked a while back so it's the floating point
- library and the VM module that would be the lion's share of
- headache in an '040 port. Where DO you put the floating
- emulation? In kernel mode or user mode? You'd think user mode
- so you don't take the hit of entering/exiting supervisory mode
- but can the floating trap be handled totally in user mode?
-
- Additionally, ALOT of the code in AmigaUNIX hasn't been recompiled
- since 2.0, the lp subsystem for one, and there would probably be
- a mess involved with fixing subsystems so they would work properly
- with an '040 at the helm, and gcc 1.4x...
-
- Well, time will tell who's full of it and who isn't...
-
- -Rob
-