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

Confirm comment report request

A HAL (Hardware Abstraction Layer) makes the work needed to run something on different hardware easier, eg loading a file from a floppy disk, scsi disk or ide disk is the same for a programmer because of hardware abstraction.

Nothing to do with what ARM chip is used really, or 26/32bit. The point is to seperate the hardware specific things from the rest of the OS, for ROS5/Iyonix that meant, for example, video hardware, Nvidia instead of VIDC, so first you move all the VIDC specific things into a seperate module, and write a hardware netural interface between the rest of the OS and the graphics module, then you write an Nvidia module and plug that in instead of the VIDC one. More work for 1 change, but when you come to use a different graphics system, much easier. Repeat for all hardware.

 is a RISC OS Usermavhc on 15/10/04 3:46PM
[ 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


Reporting user / IP: /
Comment GID: 27414
Timestamp: Mon, 21 Oct 2019 10:40:27 +0000

Search the archives

Today's featured article

  • Archive magazine reviewed
    A media watch special
     10 comments, latest by diomus on 27/10/07 12:01PM. Published: 23 Oct 2007

  • Random article

  • DIY Iyonix mobo mod job to cure freezes
    Warranty, what?
     39 comments, latest by mrchocky on 03/02/04 11:10AM. Published: 29 Jan 2004

  • Useful links

    News and media:

    Top developers:
    RISCOS LtdRISC OS OpenMW SoftwareR-CompAdvantage SixVirtualAcorn

    CJE MicrosAPDLCastlea4X-AmpleLiquid SiliconWebmonster


    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
    "The Drobe 'Best of 2005 awards' seems to have been infiltrated by a form of favouritism or censorship"
    Page generated in 0.0736 seconds.