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- Path: sparky!uunet!iadpsa!iowegia!george!james
- From: james@george.UUCP (james shoemaker)
- Newsgroups: comp.os.os2.advocacy
- Subject: Re: OS/2 bigot and NT
- Message-ID: <P4V5wB3w165w@george.UUCP>
- Date: Sat, 09 Jan 93 17:51:00 CST
- References: <8391@lib.tmc.edu>
- Organization: Organization for creative time-wasting
- Lines: 25
-
- jmaynard@oac.hsc.uth.tmc.edu (Jay Maynard) writes:
-
- > In article <1993Jan9.012848.3728@wam.umd.edu> rsrodger@wam.umd.edu (Yamanari)
- > > The one that doesn't--or *suppposedly* doesnt (I don't believe
- > > it for a second) is NeXT486. Supposedly, it will only run on
- > > a genuine Intel 486SX or DX. The Cyrix 486slc (?) is a full
- > > 80486 sans coprocessor (and Cyrix's external is faster than the
- > > DX's internal one). NS486 will probably run fine--but NeXT
- > > says no.
- >
- > Actually, I had thought that the Cy486SLC was a beefed-up _386_ (improved
- > pipelining, on-chip cache, etc), designed to drop into a 386 socket. There ar
- > 6 instructions that Intel added to the 486 beyond the 386/387 instruction set
- > and NS486 makes very heavy use of at least one of them (a byte-swap
- > instruction).
- >
- > I'm sure that when NS486 and the Cy486SLC are both on the market, we'll find
- > out for sure...
- > --
- Actually the 486SLC is designed to plug into a 386SX socket. the
- 486DLC goes into a 386DX socket. As for compatability, I don't know
- exactly, but I think they did implement any extensions that the 486 adds
- except the Math. and the cache is smaller.
-
- JWS
-