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VirtualRiscPC fixed for RISC OS 6

Published: 16th Dec 2006, 11:53:51 | Permalink | Printable

Boot bug was surprise says tester

RISC OS 6 banner windowVirtualAcorn quashed conspiracy theories this week after releasing updates for VirtualRiscPC to allow older versions of the RiscPC emulator to run RISC OS 6.

VRPC-SE and VRPC-Adjust users were unable to boot Select 4, although people who upgraded to the latest StrongARM editions of the software could. Some users alleged there was a conflict of interest between the fault and VA boss Aaron Timbrell, who is also a director of RISCOS Ltd - which recently published the preview version of Select 4 RISC OS 6.

However, we understand RISC OS 6 relies on a timing quirk on non-StrongARM processor systems, which was not taken into account by the VirtualRiscPC emulator. The offending code, found in the system start up, is not executed on StrongARM systems, and is therefore skipped on VirtualRiscPC-StrongARM.

A VirtualRiscPC and RISC OS 6 tester backed VA, and said: "Aaron had no idea that RISC OS 6 Preview would not work on VRPC-Adjust until I was given a beta copy of ROS 6 Preview to test. I could not get it to boot. It was certainly not by design."

After apologising to punters, Aaron said: "VirtualAcorn would like to extend their thanks to the numerous beta testers who have been running RISC OS 6 on test versions of VirtualRPC-SE and VirtualRPC-Adjust over the last few weeks."

The free upgrades allow VRPC-SE and VRPC-Adjust to boot Select 4 RISC OS 6 Preview, and are available online for download. They also include updated versions of HostFS and the power management system.


VirtualAcorn website

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Goes to prove that trying to emulate one form of hardware on another alien processor and OS is not a simple or errorfree task. The fact VA generally works as well as it does (my comments are based on my experience of VA5000) is nothing short of miraculous.

While I can see how it might be perceived that there *might* be a conflict of interest the more simple/mundane/likely (delete whichever adjective you wish) explanation is the one given in the article. No conspiricy just complexity causing a problem. I bet solving it was a right royal pain in the head to solve too, full marks Aaron.

 is a RISC OS UserAMS on 16/12/06 4:14PM
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Unfortunately the new version seems to have broken support for MouseSync, which IMO is essential to make any use of the emulator on the desktop. I would have hoped this functionality would have been incorporated in to it by now.

 is a RISC OS Userdruck on 18/12/06 9:04AM
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