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- Newsgroups: comp.sys.amiga.hardware
- Path: sparky!uunet!mcsun!sunic!kth.se!news.kth.se!orre
- From: orre@thalamus.sans.kth.se (Roland Orre)
- Subject: Re: 68040 and AMAX
- In-Reply-To: pochanay@cae.wisc.edu's message of 22 Jul 92 17:06:21 GMT
- Message-ID: <ORRE.92Jul24141050@thalamus.sans.kth.se>
- Sender: usenet@kth.se (Usenet)
- Nntp-Posting-Host: thalamus.sans.kth.se
- Reply-To: orre@nada.kth.se (Roland Orre)
- Organization: Royal Institute of Technology, Stockholm, Sweden
- References: <1992Jul22.120622.16366@doug.cae.wisc.edu>
- Date: Fri, 24 Jul 1992 13:10:50 GMT
- Lines: 39
-
- In article <1992Jul22.120622.16366@doug.cae.wisc.edu>
- pochanay@cae.wisc.edu (Adisak Pochanayon) writes:
- > Quicky question. I have a Fusion Forty 68040.
- > Is Amax II compatible with it??
-
- I have a Fusion Forty 68040 board from RCS Managment and AMaxII runs
- fine on it, but you can't use less than AMaxII 2.5. The problem is
- merely that not all MacIntosh programs runs very well on 68040, but
- most do. This problem is of course the same on the Mac Quadra.
-
- I do have a more significant problem with the Macintosh emulation,
- however. I have recently installed 7.01 (half an hour ago) which is
- said to be the first Mac system that manages the 68040. This system
- does, however, still not handle the 68882 emulation correctly. As soon
- as I run a program that uses the FPU the program crashes on "Bad
- F-Line Instruction". I have also installed the Macsystem for the
- Quadra explicitly. It does handle the copy- back mode correctly so
- that's ok. I mean the system seem to be aware of running on a 68040.
- It may still be so that the floating point exceptions are handled by
- the Quadra PROMs. This is of course a simple problem to solve, the
- problem is that I don't like the Mac that much that I want to learn
- how to program it and add this exception handling myself (Amiga is
- best).
-
- Somebody must have done it already. I mean there are a lot of 68040
- accelerator boards for the Mac available out there and it must have
- been solved for these. I have asked on the comp.sys.mac.programmer
- earlier but the only answer I got was that I have to have system 7.01.
- Now I have that but I still have the FPU problem.
-
- I will continue my investigation of this problem and tell you all when
- it is solved.
- --------------------------------+----------------------+-----------------------
- Roland Orre | O---O---O Studies of | orre@nada.kth.se
- Dept. of Computing Science | \ /|\ /| Artificial | orre%nada@sekth.bitnet
- Royal Institute of Technology | O-O-O-O Neural |
- SANS, NADA, KTH | |/ \ /| Systems | Phone: +46 8 790 6900
- S-100 44 Stockholm, Sweden | O---O-O | Fax: +46 8 790 0930
- --------------------------------+----------------------+-----------------------
-