Drobe :: The archives
About Drobe | Contact | RSS | Twitter | Tech docs | Downloads | BBC Micro

Reply to thread

Yes, you're right - it's not just all the modules that would have to be rewritten to cope with, well, simultaneous reentrancy, I suppose you could term it - but the whole of the operating system.

Still, I guess in one way it's lucky that RISC OS is one of the few remaining microcomputer OSes at heart, in that (interrupts aside) it doesn't do *anything* unless some code calls an OS function. It's about as deterministic as you can get.

But I'm not convinced application state is an issue. If the wimp doesn't preserve state, it means no application can rely on state, so, for example, no app will use the CSD.

But anyway, I was just pointing out that the issue of CMT vs. PMT was not directly related to the issue of MP - which is a whole can of worms whatever way you look at it.

Regarding filecore blocking on I/O, if it were possible to introduce a new asynchronous API or something along those lines, it'd be a great improvement to the responsiveness of the OS, PMT or no PMT, MP or no MP.

 is a RISC OS Userninja on 21/5/09 11:38PM
[ Reply | Permalink | Report ]

Please login before posting a comment. Use the form on the right to do so or create a free account.

Search the archives

Today's featured article

  • RISC OS vs. AmigaOS
    Are we so dissimilar?
     36 comments, latest by micken on 18/08/04 8:41PM. Published: 30 Apr 2004

  • Random article

  • Intel Mac VirtualRiscPC beta on sale
    Hardware emulator available for both Mac flavours
     14 comments, latest by hEgelia on 5/10/07 12:17PM. Published: 2 Oct 2007

  • Useful links

    News and media:
    IconbarMyRISCOSArcSiteRISCOScodeANSC.S.A.AnnounceArchiveQercusRiscWorldDrag'n'DropGAG-News

    Top developers:
    RISCOS LtdRISC OS OpenMW SoftwareR-CompAdvantage SixVirtualAcorn

    Dealers:
    CJE MicrosAPDLCastlea4X-AmpleLiquid SiliconWebmonster

    Usergroups:
    WROCCRONENKACCIRUGSASAUGROUGOLRONWUGMUGWAUGGAGRISCOS.be

    Useful:
    RISCOS.org.ukRISCOS.orgRISCOS.infoFilebaseChris Why's Acorn/RISC OS collectionNetSurf

    Non-RISC OS:
    The RegisterThe InquirerApple InsiderBBC NewsSky NewsGoogle Newsxkcddiodesign


    © 1999-2009 The Drobe Team. Some rights reserved, click here for more information
    Powered by MiniDrobeCMS, based on J4U | Statistics
    "Have I been nominated on drobe.co.uk this year? Sadly not."
    Page generated in 0.0426 seconds.