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- Xref: sparky comp.sys.ibm.pc.hardware:33335 comp.sys.intel:2717
- Path: sparky!uunet!destroyer!cs.ubc.ca!mala.bc.ca!bigras
- From: bigras@mala.bc.ca
- Newsgroups: comp.sys.ibm.pc.hardware,comp.sys.intel
- Subject: Re: 486SLC chip..NextStep on Cyrix
- Message-ID: <1992Dec15.192635.1133@mala.bc.ca>
- Date: 15 Dec 92 19:26:35 -0700
- References: <8f8d5m200WAL42H2tB@andrew.cmu.edu> <1992Dec13.033749.1675@ucsu.Colorado.EDU> <1992Dec13.060559.3867@en.ecn.purdue.edu> <Bz89I7.23u@hfglobe.intel.com>
- Organization: Malaspina College
- Lines: 49
-
- In article <Bz89I7.23u@hfglobe.intel.com>, sting@hfglobe.intel.com (Joe Bennett) writes:
- >
- > As for why the 486SLC by Cyrix will not run NeXTStep, I think
- > something should be considered:
- >
- > NeXTStep is the first, to the best of my knowledge, 32 bit
- > anything for the general PC market since Cyrix and AMD started
- > their clone operations. I don't believe that Cyrix could have
- > possibly tested 32 bit stuff adequately, because there was very
- > little of it out there, and they were aiming for the entry level
- > market as well.
- >
- > My feeling is, they booted up DOS, Windows, probably a flight
- > simulator and a spreadsheet, and said, "It's compatible" (okay,
- > I'm sure the tests were more involved than that, but that's the
- > general idea.)
-
- Yea right, this guy must be speaking from his first hand experience
- with how Intel tested their first batch of 386 chips. They ran
- DOS and Flight Simulator but didn't produce valid results on their
- 32 bit opps.
-
- >
- > Now when Next ported their OS to the 486, they probably had to
- > do some tweaking to their compilers. This probably meant getting
- > an Intel 486 programmer's reference manual to do it. After fixing
- > a few bugs (either due to something undocumented in the manuals,
- > documented incorrectly, etc) they got the OS functional. These
- > nondocumented/incorectly documented things could be a partial
- > reason for what's causing NeXTStep not to run on the Cyrix chip.
- >
- > Two broad assumptions on my part, but I wouldn't be surprised if
- > that had at least something to do with it.
- >
-
- The rumours I like are the ones that involve Intel convincing NEXT
- to write only for the 486 to kill the 386 cloners off. In the case
- of Cyrix it must be a variation of the story told of Billy boy when
- MS was developing DOS v2.0 . Rumour is Bill said 'It ain't finished
- until it wont run Lotus'
-
- Tony Bigras
-
- ok
-
- > I really wouldn't be too surprised if other true 32 bit code for
- > the x86 family also had problems on the Cyrix part.
- >
- > But we'll have to wait and see.
-