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Pros and cons of rewriting an OS from scratch Published: 23rd Nov 2006, 21:47:07.Is it really worth it?
In an article published today on OSNews, the merits and pitfalls of re-creating operating systems from scratch were debated, with references made to OSes including RISC OS and AmigaOS. The ideal albeit seemingly impossible goal of rewriting RISC OS from scratch would be to introduce features such as full memory protection, full pre-emptive multitasking, proper disc and filesystem caching, compatibility with drivers and applications from other OSes, and so on, all while maintaining the RISC OS API so that existing applications can continue to work, possibly within a compatibility environment. While some have in the past proposed rebuilding the OS from the ground up, recent work on QEMU has taken a different approach - this has seen the implementation of parts of the RISC OS API within an ARM emulator, allowing native ARM-targeted programs to run on Intel PCs. See the link below for more. Links A critical look at OS re-creation projects Also, Rewriting RISC OS for Intel PCs from last August Discussion Viewing threaded comments | View comments unthreaded, listed by date | Skip to the endPlease login before posting a comment. Use the form on the right to do so or create a free account. |
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Featured articles The weekend's RISC OS event has been and gone and we've got the rest of our lives to look forward to. Here's a round-up of extra news and Drobe's show-related coverage and some photos taken from Wakefield 2009 - plus a video from the show floor. 16 comments, latest by AW on 29/4/09 7:41PM. Published: 27 Apr 2009Picture exclusive - This grainy photograph shows a port of RISC OS 5, sourced from the RISC OS Open project, running on a Beagleboard - a device powered by a 600MHz ARM Cortex-A8 processor with a built-in graphics chip. The port, developed by Jeffrey Lee with help from Uwe Kall and ROOL staff, is seen as a major breakthrough for the shared-source project as it proves the OS can be ported to new hardware without the need for a large team of engineers. 75 comments, latest by rjek on 30/4/09 3:15PM. Published: 25 Apr 2009It can be a pain when someone sends you a file that can only be opened on Windows, Mac OS X or Linux - but with the help of a free-to-use website and NetSurf, Paul Stewart reveals how these documents can be viewed on RISC OS. 6 comments, latest by AW on 8/5/09 12:12AM. Published: 19 Apr 2009Useful links News and media:Iconbar • MyRISCOS • ArcSite • RISCOScode • ANS • C.S.A.Announce • Archive • Qercus • RiscWorld • GAG-News Top developers: RISCOS Ltd • RISC OS Open • MW Software • R-Comp • Advantage Six • VirtualAcorn Dealers: CJE Micros • APDL • Castle • a4 • X-Ample • Liquid Silicon • Webmonster Usergroups: WROCC • RONE • NKACC • IRUG • SASAUG • ROUGOL • RONWUG • MUG • GAG • RISCOS.be Useful: RISCOS.org • RISCOS.info • Filebase • NetSurf Non-RISC OS: The Register • The Inquirer • Apple Insider • BBC News • Sky News • Google News • xkcd • diodesign |
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