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Hello, I have some disks bigger than 180k that work perfect with XRoar-Becker and with the real Dragon-DW4: NitrOS-9 L1 v3.3.0 for Dragon 64 (6809) --- 720K NitrOS-9 L1 v3.3.0 for Dragon 64 (6809) --- 360K (the very same in a smaller disk) They both boot up without problems, so it seems that OS-9, N...

I will give this a try along this afternoon. But this should be no problem, then we could copy the whole disk to an VDK image and put it inthe Drivewire DISK folder, so it could be 'mounted' as a drive too I think that I used my FLO2V dweeb to copy OS-9 disks into VDK. The problem, buy now, with DW4...

Hi, Jon this could be a possibility, but then, why does a real Dragon 64 without any DOS start NitrOS-9 via Drivewire just with the command - DLOAD"DOS" - ? In this case it cannot access any internal routine ... but it works well. On the other hand, if I have the DOS and drives in my Dragon, it can ...

Hi Ken, I have the file "nos9v303_d64COHR_becker.dsk" mounted as Disk0 in DriveWire Then I start XRoar without DDOS or with DDOS11C When I enter DLOAD"DOS" The screen shows the message "NITROS9 BOOT" But nothing happens on the screen, it simply hangs the computer. But ... if I do that with HDB-DOS i...

Hi Ken, pleased to hear from you again! I have downloaded all that info, I'm thinking of getting into that old project again. I will try to alternate it with The Hobbit conversion, where I have about 40% of work done. But there is still quite a lot of code to convert and test! cheers have a nice wee...

Back again, Jon I have started my Dragon (without drives) but connected to the PC via DriveWire. With drivewire having in slot0 the NitrOS-9 disk for DW, I pressed Shift to avoid autorun... Then DLOAD"DOS" has started NitrOS-9 without problems So I think there is some sort of uncompatibility with XR...

Hi Jon, I attach here the .bat file I use ... it's a bit special because I have all inside folders, but you will get the idea! cheers pere screen.jpg EDIT: All the tests I have made using any DOS different from HDB-DOS have failed (maybe I am doing something wrong, I don't know) It seems to me that ...

Hi Jon, I don't know much about OS-9/NitrOS-9, but what I have done is: In XRoar I have a bat file that loads a Dragon64 with HDB-DOS Before starting it, I start DriveWire putting a special NitrOS-9 disk in slot 0 Then I start the bat file and get the normal Dragon prompt Then I use: DLOAD"DOS this ...

Hello, Jon, have you got the DosPlus4.9 source code or a commented unassembled file? Is there a user/programmer manual for this DOS? I would like to compare it to the SuperDOS and DDOS12A to choose the one that could make things easier to convert it to something like the HDB-DOS thanks in advance ch...

Hi Jon, There are a few assembler source files but neither as commented as the unravelled CoCo series. I am attaching here what I have found in my PC folders, not sure if they are the very last version, but they do help a bit. I hope the file names are self descriptive If anybody had a better source...