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- Path: news.msfc.nasa.gov!pendragon!ames!waikato!not-for-mail
- From: sbh@cs.waikato.ac.nz (Stephen B Hodge)
- Newsgroups: comp.sys.amiga.misc
- Subject: Re: OS features
- Date: 9 Jan 1996 03:22:24 GMT
- Organization: The University of Waikato
- Sender: sbh@waikato.ac.nz
- Message-ID: <4csn1g$ibm@thebes.waikato.ac.nz>
- References: <92747544038@PAPA.NORTH.DE> <4b3h9s$1st@alterdial.UU.NET> <2152.6561T63T2136@cycor.ca> <4b7i18$si1@vixen.cso.uiuc.edu> <oj6raxxrr0o.fsf@hpsrk.fc.hp.com> <13213431@sourcery.han.de> <4cpmlv$obe@ousrvr3.oulu.fi> <4cqqfq$khf@serpens.rhein.de>
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-
- Michael van Elst (mlelstv@serpens.rhein.de) wrote:
-
- : kinnunen@stekt.oulu.fi (Teijo Kinnunen) writes:
- :
- : >"New" programs (aware of memory protection) would each run in their own
- : >protected memory spaces (with resource tracking, hopefully). They could
- : >communicate with other processes only through new, safe OS calls (not by
- : >sharing memory, as today).
- :
- : This basically means a completely new and incompatible OS and some kind
- : of emulation for old programs. Needless to say that this will be limited
- : and significantly slower for the emulated system.
- :
- : >There's no easy way to add MP to AmigaOS, but as far as I can think of,
- : >the above method would allow some level of compatibility with old programs.
- :
- : I think we can do something better...
-
- I think the only way to go is to toss the OS completely. Now is the perfect
- opportunity to come out with a killer OS the doesn't contain the artifacts
- that the current OS has (eg OldOpenLibrary() et al). With the move to a
- PowerPC platform much of the OS will need to be rewritten anyway, such as
- Exec and Graphics, and since ideally it should all be PowerPC native I think
- that it is better to start from scratch so that features such as memory
- protection and RTG can be included.
-
- To do this, and retain compatibilty and also get a machine to the market as
- fast as possible the current OS will need to be ported to PowerPC, but I
- think it is pointless to try to add things such as memory protection to
- it now. What I think AT should do is to port OS3.1 to PPC and then write
- a new (largely incompatible) OS that resembles AmigaDOS but contains the
- features that an OS is expected to have now.
-
- --
-
- Steve Hodge
- sbh@cs.waikato.ac.nz
- Computer Science Dept, University of Waikato
-
-