UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Gemini 80-Bus System

JohnBHanson · 29th Oct 2020, 11:37 pm

I have done a bit of disassembly of the simon rom and found a problem with
the scsi emulation that caused simon to fail to detect the scsi hardware. This has
been rectified.

I have not completed the disassembly but broadly found my way round some areas. If
you are disassembling I can send you the partial disassembly which has some labels
identified.

I have also harmonised the way bus extensions work - to make it easier to add more. Because it appears that some versions of linux don't supply the required files to build
device drivers with their distributed kernel and booting a custom kernel is more difficult
than it used to be I have included the parallel port driver code into xbeaver. Would be
nice to get a usb version of the bus-extender going and would probably use user-space
usb to put the driver into xbeaver as another bus extender.

29th Oct 2020, 11:37 pm	#472
JohnBHanson Heptode Join Date: Aug 2009 Location: Worthing, Sussex, UK. Posts: 662	Re: Gemini 80-Bus System I have done a bit of disassembly of the simon rom and found a problem with the scsi emulation that caused simon to fail to detect the scsi hardware. This has been rectified. I have not completed the disassembly but broadly found my way round some areas. If you are disassembling I can send you the partial disassembly which has some labels identified. I have also harmonised the way bus extensions work - to make it easier to add more. Because it appears that some versions of linux don't supply the required files to build device drivers with their distributed kernel and booting a custom kernel is more difficult than it used to be I have included the parallel port driver code into xbeaver. Would be nice to get a usb version of the bus-extender going and would probably use user-space usb to put the driver into xbeaver as another bus extender.