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

Confirm comment report request

It doesn't.

The ARM,6502 and M68000 are not worlds apart in the number of instructions they use. It's got to do with the complexity of the instructions and number of addressing modes.

The 6502 and M68000 have lots of addressing modes. The 68000 also has quite complex (almost high level) instruction types (so is definately a CISC). The ARM has fewer addressing modes, most commands are relatively simple (so would IMHO qualify as a RISC), it does (however) have a few instructions that are a bit more complex than a RISC should have - things like multiple store/load (STM/LDM). As most of its instructions fall into the RISC camp - I'd suggest (tentatively) its a RISC, but not a typical one ;)

 is a RISC OS UserAMS on 13/5/04 1:44PM
[ Reply | Permalink | Report ]

Click on the button below to confirm you wish to flag up this comment to the website's administrators. Abuse of this service will be frowned upon and it should only be used to notify us of comments that are extremely distasteful, indecent or otherwise unlawful. If you disagree with an opinion expressed or fact stated in a comment, please take part in the debate rather than expect it to be removed.

Return to the drobe.co.uk front page

Details

Reporting user / IP: / 35.173.47.43
Comment GID: 10368
Timestamp: Mon, 23 Sep 2019 18:48:27 +0000

Search the archives

Today's featured article

  • Beginner's guide to manipulating stock photos
    Getting your message across with ArtWorks and Photodesk
     9 comments, latest by sascott on 8/8/06 9:16AM. Published: 6 Aug 2006

  • Random article

  • A9home emerges in beta form
    Specifications, analysis, photos [Updated]
     43 comments, latest by flypig on 26/05/05 8:36PM. Published: 21 May 2005

  • 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
    "Drobe won't credit us for breaking stories. Oh well, that's journalism for you."
    Page generated in 0.0452 seconds.