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

Reply to thread

At the moment both VRPC and RPCEmu emulate the specific legacy hardware of the Risc PC. If you have an open source emulator and an open source target OS with a well defined hardware abstraction layer i.e. RISC OS 5, you can abandon having to exactly replicate vagaries and limitations of this old hardware, and instead do what Virtual Machines such as VMWare do, and implement RISC OS drivers for an idealised set of generic hardware. This greatly simplifies the emulation, and increases its performance, as there is then a close mapping between the RISC OS driver and the higher level APIs of the host system.

You also open the door to make far more use of the host systems facilities than current emulators, such as offering access to the host's USB and Bluetooth perhiperals using high level calls rather than having to implement the hole USB and Bluethooth stacks in software on the RISC OS side. Also you can make use of software components such as audio and video codecs, which aren't available for RISC OS, and would run too slowly in ARM code in any case.

There is an incredible amount of potential for an open source emulator running ROOLs code, which goes way byond what is offered by VRPC, over an above the current sticking points of not running on Linux and not allowing you to have a USB memory stick based portable RISC OS emulator image.

 is a RISC OS Userdruck on 22/10/08 9:34AM
[ 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

  • It's the Music, Man
    It comes from not-so-far away
     14 comments, latest by cynic on 3/2/05 7:59PM. Published: 18 Aug 2004

  • Random article

  • NetSurf team founds formal organisation
    During a public meeting held over IRC tonight, the NetSurf team formally founded an organisation "in order to have a bank account and appropriate protections for the funds and assets of the NetSurf Project". Michael Drake was elected chairman in a three-way race for the top spot, John-Mark Bell was made treasurer and Daniel Silverstone was elected secretary. The group, which is partly funded by donations from punters, will hold its first AGM at the Wakefield 2009 Show on April 25.
     1 comment, latest by Revin Kevin on 21/1/09 1:00PM. Published: 19 Jan 2009

  • 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
    "It gives a bad impression to anyone wondering who's going to be next to go when the web sites reporting the news have stopped reporting anything"
    Page generated in 0.0345 seconds.