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- Newsgroups: comp.sys.amiga.hardware
- Path: sparky!uunet!munnari.oz.au!metro!usage!hydra.maths.unsw.EDU.AU!peteru
- From: peteru@hydra.maths.unsw.EDU.AU ()
- Subject: Re: '040 & '882
- Message-ID: <1992Aug25.050307.9575@usage.csd.unsw.OZ.AU>
- Sender: news@usage.csd.unsw.OZ.AU
- Nntp-Posting-Host: hydra.maths.unsw.edu.au
- Organization: University of New South Wales
- References: <9208181730.AA00580@aitgw.ge.com> <64364@cup.portal.com>
- Date: Tue, 25 Aug 1992 05:03:07 GMT
- Lines: 25
-
- In article <64364@cup.portal.com>, DonD@cup.portal.com (Don Robert DeCosta) writes:
- |> >- saw that it said it was a 25 MHz '040 and '882. Why do you need an '882? Is
- |> >- the '040 a coprocessor board? Thanks,
- |> >
- |> >The '882 was a typographical error.
- |> >
- |>
- |> Since the '040 has to emulate some '882 instructions with software, perhaps the
- |> '040/'882 combo is legit... perhaps the '040 won't have to soft-emulate any
- |> instructions, it can pass them on to the '882. Not as fast as having those
- |> instructions on-chip, but faster than software.
-
- The 68882 or 68881 or 68851 can NOT be interfaced to the 68040. The 68040
- does not support the co-processor interface found in 68020 and 68030.
-
- My guess is that the ad that you saw indeed contained a typo. It probably
- should have read 68030 + 68882. Then again, I have not seen it, since we
- don't get Sepo magazines here in Australia until couple of months after
- they have been published.
-
- --
- Peter Urbanec peteru@hydra.maths.unsw.oz.au
- University of New South Wales s1013734@cs.unsw.oz.au
- Sydney, Australia
- The only sin is stupidity - Machiavelli
-