OSI Floppy software

Restored from original incarnation of the forum. Restoration in progress. . .
Post Reply
__graeme
Posts: 4
Joined: Mon Dec 05, 2011 1:55 am

OSI Floppy software

Post by __graeme » Mon Dec 05, 2011 2:32 am

A plea for some help I have for a number of years had osi machines even imported one back in 1976 which still works. I have a number of machines including Superboards, C24p ,C28p etc. Along with a number of extra memory , floppy, and processor boards. I would really like to get a disk system up and running again and have a couple of 470 boards , a dn floppy/memory board and a selfbuilt interface board that I used to use . The hardware I can probably mange but software! Does anyone have any funtioning . I remember that I used to use a simple dos from premier publications and also 65d but the disks have long perished. I would love to get some of the kit running again. I have got blank disks and of course would pay for postage costs etc .

Regards Graeme

__dave
Posts: 19
Joined: Mon Dec 05, 2011 1:48 am

Reconstructing OS65D disks from images on the web

Post by __dave » Mon Dec 05, 2011 2:33 am

Mark Spankus has a copy of OS65D v3.3 bundled with his emulator. I also have a copy I can post, if needed. It should be possible to cut the image into 2K track-sized chunks, and use the srecord utility or Ed's OSILOADER utility to send load a track to the OSI memory over a serial link (see the LINKS section on this site). To reconstruct a loader disk, transfer the track containing the OS65D kernel to the right place in memory. Right now, my apartment is packed up and I'm out of town, but quickly glancing at the OS65D v3.3 disassembly (posted on this site) I would try the following:

- use the unix utility bsplit (or a DOS/WIN version) to break the OS65D v3.3 disk image into 4K chunks.
- use srecord or OSILOADER to turn the first chunk (tracks 0/1) into a OS65V format loader file to load at 2200 (or stick /2200. at the beginning)
- do the same for the other tracks, to some safe location, maybe even in 8k chunks for convenience
- hook up a serial cable between your PC and OSI
- enter the monitor mode
- load tracks 0&1 to $2200
- start executing at a safe location, perhaps $2240, $2245, or $225E. Running at $2200 would try to load a garbage track 1 to 2a00.
- Now, either write a little utility to accept tracks and write them to disk, or do it manually using the monitor to load as many tracks as you can fit into safe 4k or 8k memory chunks, then use the OS65D shell to write the blocks to disk (see the OS5D reference card on this site). As a matter of fact, I'll probably try the same thing once my stuff is all unpacked (another month at least). If you try it, let me know how it goes.

Links:

http://www.alphalink.net.au/%7Eedsa/
http://srecord.sourceforge.net/
http://www.osiweb.org/osiweb/manuals/OS ... Manual.pdf
http://www.osiweb.org/osiweb/manuals/refcard.pdf

Any suggestions from anyone else? Mark? Lee?


Dave

__graeme
Posts: 4
Joined: Mon Dec 05, 2011 1:55 am

Re: OSI Floppy software

Post by __graeme » Mon Dec 05, 2011 2:34 am

Success,
I have now managed to get two of my machines running and booting from disc. One is a 600+610 combination which I can now run under hexdos or 65d. Still have some problems copying though cannot get hex dos to duplicate also errors on other copying methods suspect that the data is not being written out to disc correctly as seems to initalise etc.

My c2 is running under 65d various versions seem to have no problems copying disks with this set up.

Now need to sort out the c8 and the 8" disk this could be a problem would appreciatte any info people have.

regards graeme

__rontidd
Posts: 1
Joined: Mon Dec 05, 2011 2:36 am

disks

Post by __rontidd » Mon Dec 05, 2011 2:39 am

Not sure if they are any good,
I threw out my system (C2 8P-DF) over 10 years ago. I know. I know.
Just cleaned out my attic this weekend and found a bunch of OS65U system disks, demo disk, and some Aardvark software disks.

I think the disks are cool (8 " floppy) and wouldn't want to loose them as I dig out the one that wasn't in my attic from time to time to show colleges what a "real" floppy looked like (ROFL).

If however someone wants to chance any of these disks actually still holding data, I'd be willing to loan them to you to attempt to copy the info.

My email is bron@tbidd.net (remove the b's). Let me know if you are interested. I DO want them back though.

I also have a service manual with schematics if someone wants to borrow/copy it.

dave
Site Admin
Posts: 356
Joined: Tue Sep 09, 2008 5:24 am

Re: Reconstructing OS65D disks from images on the web

Post by dave » Mon Dec 08, 2014 5:19 pm

__dave wrote:Mark Spankus has a copy of OS65D v3.3 bundled with his emulator. I also have a copy I can post, if needed. It should be possible to cut the image into 2K track-sized chunks, and use the srecord utility or Ed's OSILOADER utility to send load a track to the OSI memory over a serial link (see the LINKS section on this site). To reconstruct a loader disk, transfer the track containing the OS65D kernel to the right place in memory. Right now, my apartment is packed up and I'm out of town, but quickly glancing at the OS65D v3.3 disassembly (posted on this site) I would try the following:

Dave
Just as a followup, the above suggestions won't work, because the floppy images are contain formatting data captured by the dump program, and this would have to be parsed out. The tracks are stored in $900 byte chunks to include the dumped data. Mark describes the emulator format here:

http://osiweb.org/osiforum/viewtopic.ph ... p=231#p231

Post Reply

Who is online

Users browsing this forum: No registered users and 1 guest