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RISC OS 6 to power Select 4 Published: 18th Oct 2006, 17:11:37.Free preview promised to hearten Select subs [Updated] Select 4 will be powered by a 26/32bit neutral RISC OS 6, RISCOS Ltd announced today. The next heavily awaited installment of Select will come in two builds - a 26bit mode build for RiscPCs and A7000-class machines, and a 32bit build for A9home computers. Drobe understands a free preview version running RISC OS 4.4x will be offered for Select subscribers to download, with a suitably bug fixed RISC OS 6 later rolled out to fully paid-up subscribers. The news was announced this afternoon in Glasgow during the first day of the RISCOS Ltd northern roadshow.
RISCOS Ltd have privately fumed that punters could see RISC OS 5 as being superior to RISC OS 4 purely from comparing the version numbers, and have stuck to using the Select and Adjust brand names to describe their operating system releases. However, as the internal kernel version number has rolled past 10.00 after hundreds of changes and bug fixes were committed to the source code, ROL have seen fit to nudge the OS version to six.
Overall, the bullet point features for Select 4 are the hardware abstraction; increased stability thanks to additional memory protection and the new debugging tools developed in-house by ROL; the ZeroConf networking system to make managing a network easy; the restructuring and tidy up of the operating system; and the 32 bit conversion making it suitable for ARM 9 powered systems. The abstraction includes some graphics acceleration in a Viewfinder driver module, which opens up extra large screen modes and is independent of John Kortink's VF driver code. A similar module also exists for the A9home SM501 graphics chip. The acceleration enhances line and rectangle drawing, and block operations, reportedly pushing Draw far faster than ArtWorks. The Viewfinder driver also caches sprites on the card video RAM, accelerating rendering further. The memory management system has been updated so that dynamic areas can be used in DMA operations and mapped to physical memory directly, which is useful for driver development, and can be adapted to power a virtual memory system. The video drivers use physical dynamic areas to access their VRAM. A Video Guard module ensures users are not left without a display if a fault occurs with a graphics driver. With its 32bit compatibility and hardware abstraction, the OS has been described as a distant cousin to earlier releases of RISC OS 4, and unrecognisable compared to the design of RISC OS 5. The last release in the yearly Select subscription scheme was pressed in mid-2004. RISCOS Ltd recently apologised to customers for the delays, adding that a lot of development time has been spent on making RISC OS 4 compatible with 32bit ARM-compatible processors and introducing the hardware abstraction. Since the release of Select 3, AdvantageSix have bank rolled further development of RISC OS 4, which saw the release of 32bit ROS 4.42 for Ad6's A9 product line. The new version number, namely six, and AdvantageSix's name are a coincidence, Drobe understands. ROL's Paul Middleton told subscribers this month that the company is aiming for an October release; this is unlikely to happen, although development and bug fixing continues, Drobe understands. An Iyonix port of Select is also unlikely to happen unless greater cooperation between ROL and Castle emerges. ROL intend to charge £210 for a 2006-2007 subscription to Select, which will include RISC OS 6. The RISC OS 6 announcement comes following the publishing of the RISC OS Select technical documentation online. ROL have denied that the flurry of Select related news is due to the appearance of RISC OS Open. Glasgow show photos from RISCOS Ltd stand Leaflet page 1, page 2 (copy of the RISC OS 6 website) Rewritten at 23:20 after new information and photos came to light. A pre-release hard disc archive is also expected to be released soon. Update at 20:20 19/10/2006 The full changelogs for Select 4 are here. Links RISC OS 6 website News moles: Glasgow show reporting by Andrew Brown and Michael Drake. Photography by Michael Drake. Discussion Viewing threaded comments | View comments unthreaded, listed by date | Skip to the end
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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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