Thanks - I think I have figured it out and was able to get my idea to work. The 8250 (with dos 2.7) allows for extended REL files which the 8050 cannot read. This is enabled (extended REL file capability) by default and you have to disable it first before creating a 8250 REL file that can be read on a 8050 (the command is listed in the Commodore Disk reference manual for the D9060 …. 8050). Section copied below Relative files on 8050 disk units are limited to a size of 182,880 bytes. On 8250 disk units with DOS 2.7 this limit no longer applies and relative files may use the entire capacity of an 8250 diskette. The 8250 will power-up with the Expanded Relative File feature enabled. To read/write 8050 formatted relative files, this feature must be disabled as follows: Example OPEN 15,8,15 PRINT#15,"M-W"chr$ (164)chr$ (67)chr$ (l)chr$ (255) CLOSE 15 I then created a OS/9 disk on the 8250 and used the cbmwrite command to copy programs out of the os9 environment and put them on the native disk which waterloo micro editor can see. Copied them across (using the micro editor) to a 8050 formatted floppy and used cbmread to put them back into the 8050 REL file under OS/9. Has anyone got a scanned copy of the SuperPet OS/9 manual in their library ? Cheers Andy > On 24 Jun 2018, at 18:36, Rhialto <rhialto@falu.nl> wrote: > > On Sun 24 Jun 2018 at 10:26:45 +0100, Andy Grady wrote: >> OK that didn?t work ?.. >> >> Digging deeper it seems this is an 8050 format disk but under DOS 2.7 ?. from what i can glean dos2.7 can handle or/9 ?rel' files differently (larger sizes are possible and this one is formatted as 120 tracks instead of 77) which is possibly the cause of why i cannot do anything with this disk. > > I guess you could try sfd-1001 drives. > >> In Vice what is the DOS version for 8050 drives ? > > I don't know off the top of my head, but > > *** commodore basic 4.0 *** > > 31743 bytes free > > ready. > ?ds$ > 73,cbm dos v2.7,00,00,0 > > ready. > > > -Olaf. > -- > ___ Olaf 'Rhialto' Seibert -- Wayland: Those who don't understand X > \X/ rhialto/at/falu.nl -- are condemned to reinvent it. Poorly. > > >> Andy >> >> >>> On 23 Jun 2018, at 20:21, Andy Grady <grada719@aol.com> wrote: >>> >>> ummm, just had an idea come to me ?. on the super os/9 disk, when running in the os/9 environment, there are two programs in the cmds folder called cbmwrite and cbmread. I used cdmwrite to write the 0s9.d8d9 module file out onto the native part of the CBM disk which can be read on the superpet using the waterloo micro editor. >>> >>> I bet cbmread does the opposite ?. will try it to see if i can write the files out of the os/9 environment and then use cbmread to put them back in having copied them onto an 8050 format disk - all in vice. >>> >>> Andy >>> >>>> On 23 Jun 2018, at 19:47, Andy Grady <grada719@aol.com> wrote: >>>> >>>> >>>>> Maybe the OS/9 code cannot handle that it needs to access drive 8 and >>>>> 10, instead of the probably more common 8 and 9? >>>> >>>> Yes, OS/9 expects unit 8 and unit 9 ?. i finally managed to perform a directory listing on disk10 (8250) using the waterloo microEditor (took several attempts) but as the os/9 files are contained in a ?rel? file, I don?t know how to decode it.. >>>> >>>> I have a few os/9 programs in a large ?rel? file that it seems can only be read on an 8250 (confirmed in Vice) ? I only have an 8050 so was hoping could use VICE to transfer across to that format. A ram disk was another thought and then switch drive types etc. >>>> >>>> Thank you for replying?. >>>> >>>> >>>> >>>> >>>>> On 23 Jun 2018, at 16:53, Rhialto <rhialto@falu.nl> wrote: >>>>> >>>>> On Sat 23 Jun 2018 at 01:24:20 -0700, AndyG wrote: >>>>>> Hi all >>>>>> >>>>>> Wondered if someone can help me out here. I am not able to to run Vice in >>>>>> Superpet mode with 2 drive units 8050 and 8250 .... VICE only allows unit 8 >>>>>> & 9 which is drive 0 and drive 1 ..... on a 8050 for example. >>>>>> unit 10 & 11 are not enabled in VICE. >>>>> >>>>> Due to some internal limitations, a dual drive takes up 2 device >>>>> numbers, so the first 8050 would be at device 8 and also make number 9 >>>>> unavailable. The second 8050 (or 8250) would be device 10 and make 11 >>>>> unavailable. That is because internally VICE only knows about 4 floppy >>>>> images. >>>>> >>>>> The gtk3 settings windows in the current svn version doesn't seem to >>>>> represent this 100% correctly yet, I see now that I'm trying that. >>>>> I'm pretty sure this is shown correctly (but possibly somewhat >>>>> confusingly) in the menu settings in older releases. >>>>> >>>>>> I want to run Super OS/9 with this configuration also - i have the relevant >>>>>> os9.d8d9.mod module to enable multi unit capability. >>>>>> >>>>>> I can have one or the other but not both .... any ideas or is this a >>>>>> limitation of Vice ? >>>>> >>>>> Maybe the OS/9 code cannot handle that it needs to access drive 8 and >>>>> 10, instead of the probably more common 8 and 9? >>>>> >>>>>> Also, I have been working in OS/9 - on my real unit, I can create a ram disk >>>>>> by issuing the command format /dram without any issues. in VICE when you >>>>>> issue a Format /dram command from the os9: prompt it goes through the >>>>>> formatting motions until it asks for the disk name ... after that it just >>>>>> hangs. Any ideas ? >>>>> >>>>> There might be a bug in the 6809 code, who knows. It is only lightly >>>>> tested, really. I briefly tried OS/9, I think, and saw it didn't crash, >>>>> but no more. In particular the 6809 is not cycle-exact; maybe that would >>>>> be a problem? >>>>> >>>>>> Cheers >>>>>> Andy >>>>> -Olaf. >>>>> -- >>>>> ___ Olaf 'Rhialto' Seibert -- Wayland: Those who don't understand X >>>>> \X/ rhialto/at/falu.nl -- are condemned to reinvent it. Poorly. >>>> >>>> >>> >>> >>Received on 2018-06-25 16:00:04
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