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

Reply to thread

> StrongARM binaries will be faster on an XScale than ARM6 ones If that means that the compiler knows about load-use delays and tries to schedule instructions between an LDR Rd,[] and any use of Rd then yes. IIRC unexecuted LDM/STMs are also cost more than 1 cycle on SA so knowing that can also improve performance on the XScale.

Of course, that's knowledge of the SA/XScale's performance characteristics rather than usage of new instructions, but I think that's by far the greatest benefit to be had. Some small improvement may also be gained be use of halfword loads/stores which are new to post-ARM6 CPUs but most of the other new instructions are not really useful to a compiler.

 is a RISC OS Useradrianl on 23/3/04 1:54AM
[ 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

  • CDs Available
    Drobe Special Projects
     2 comments, latest by piemmm on 21/10/03 12:23PM. Published: 23 Jul 2003

  • Random article

  • KinoAmp updated
    Think VideoCDs with audio at full rate in sensational 32,000 colours
     2 comments, latest by andretim on 27/5/02 3:52PM. Published: 24 May 2002

  • 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
    "RISC OS needs a frequently updated news site that has all the news, not just a carefully selected sample. Currently this simply isn't Drobe"
    Page generated in 0.0267 seconds.