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- Newsgroups: comp.os.os9
- Path: sparky!uunet!mcrware!dibble
- From: dibble@microware.com (Peter Dibble)
- Subject: Re: POSIX
- Message-ID: <1992Jul23.224511.10845@microware.com>
- Sender: news@microware.com
- Nntp-Posting-Host: seldon
- Organization: Microware Systems Corp., Des Moines, Iowa
- References: <1992Jul10.224019.12045@microware.com> <1992Jul22.082745.28242@gserv1.dl.ac.uk>
- Date: Thu, 23 Jul 1992 22:45:11 GMT
- Lines: 43
-
- In article <1992Jul22.082745.28242@gserv1.dl.ac.uk> gjm@gserv1.dl.ac.uk writes:
- >In article 12045@microware.com, dibble@microware.com (Peter Dibble) writes:
- >>I don't make or state policy, but I think we have said OS-9000 will
- >>have Posix 1003.1 support
- >
- >Does this mean that OS-9/68K will NOT have POSIX.1, or does your
- >reference to OS-9000 include OS-9/68K? If not, does this mean that
- >Microware now see their premier product to be OS-9000 rather than
- >OS-9/68K?
-
- We are working hard on BOTH operating systems, and have no plan to
- drop or even deemphasis either one. Even when one OS gets
- the majority of our attention for a while we pay close attention
- to spin offs. OS-9 and OS-9000 are so similar that much of our
- work on either OS applies to the other as well.
-
- There are differences. OS-9000 is written mainly in C so it is easier
- to experiment with some things there. OS-9 only needs to run on
- 68xxx-family processors, so it can make a number of non-portable
- assumptions.
-
- We are playing with Posix for OS-9000 first because it is much easier to
- implement fork on an OS that only runs on processors with MMUs.
- We are considering Posix for OS-9 too, but it is a subject for
- long technical debates. Posix will do OS-9000 very little harm.
- It would be hard to add Posix support to OS-9 without making the
- kernel bigger and slower for everyone...even those who have no interest
- in Posix.
-
- Our parallel OS work is also concentrated on OS-9000. OS-9000 was
- designed after we started working on a parallel OS, so it incorporated
- some important features in its design. Still, if parallel OS-9000 is a big
- hit it too might migrate to OS-9.
-
- Our OS-9 work is close enough to delivery that it is more developement
- than research. Chatting about that stuff had better wait until
- the marketing folk do their thing.
-
- ...Also, we actually support more processors under OS-9 than OS-9000.
- OS-9 supports the 68xxx line. (I think) OS-9000 supports the 68020, 68030,
- 80386XX and 80486XX.
-
- Peter
-