Pros and cons of rewriting an OS from scratchPublished: 23rd Nov 2006, 21:47:07 | Permalink | Printable
Is it really worth it?
Several attempts at rewriting RISC OS from scratch to implement modern operating system features have been made by people since the break up of Acorn, yet apart from recent QEMU work, no such projects have come close.
Rewrite: Could RISC OS be sensibly recreated from scratch?
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.
A critical look at OS re-creation projects
Also, Rewriting RISC OS for Intel PCs from last August
Previous: RISC OS gets transparent windows
Next: TechWriter to get Word 2k export
DiscussionViewing threaded comments | View comments unthreaded, listed by date | Skip to the end
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
Pace and Sega announce Dreamcast joint venture
Discuss this. Published: 29 Jan 2001
4th Dimension games republished again
1990s favourites slapped on CDs
33 comments, latest by AW on 07/06/05 9:47PM. Published: 3 Jun 2005
News and media:
RISCOS Ltd •
RISC OS Open •
MW Software •
Advantage Six •
CJE Micros •
Liquid Silicon •
Chris Why's Acorn/RISC OS collection •
The Register •
The Inquirer •
Apple Insider •
BBC News •
Sky News •
Google News •