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sup8pdct

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Posts posted by sup8pdct

  6. Posted

    we ran a us doubler without the ram pack and it worked... disks loaded formatted and everything was perfectly fine... it ran a tad slower when operating in high speed sector skew and burst as compared to a us doubler with ram... sometimes it would have to stay on a track a split second longer to grab the things...

    How did you do that? I have dissembled the USD rom, 1st thing the rom does is to check for the ram module. No module = no run.

    There is an DD upgrade that doesn't add extra ram. Rather unknown one from eastern Europe. Cannot remember name tho.

     

    James

    • Like 1

  7. Posted · Edited by sup8pdct

    I believe that Kyle22 has got it right. if the sdx formatter sees a byte where it it doesn't expect it to be, it will not see it properly.

    Would it be possible for you to give us the percom block of the Hd partition in question?

     

    James

     

     

    Edit. I know the SDX formatter works with MIO 16 meg partitions.

  9. Posted

    I tried super dos. After initializing, detected the high speed on my SIO to SD, then loaded fast. It's an interesting DOS.

    Superdos should show a density in 5+.that is ramdisk. pressing 5 should give a directory listing of the ramdisk.

    If using superdos, you can save the rom out to a file for others to look at.

     

    Superdos is designed to be a direct replacement for dos 2.

     

    James

     

    James

  12. Posted

    I this case, Xl is running a judging program I wrote, collecting scores from 3 judges and displaying the result on a display not shown. Screen keeps stats etc. One laptop displays pics to be judged, 2nd laptop has database to collate scores. Must wait for xl to get show score before anything else happens.

    I did have a modified keyboard plugged into joystick ports so xl would enter scores into database directly but it started to act up.

     

    James

    • Like 1

  15. Posted

    I personally have used Superdos 5.1 with my XF551 drives formatted double sided, so i cannot understand why it won't work for you.

    An unmodified xf551 is required tho ie original atari rom.

    The double sided format is very similar to dos2.5 with its enhanced format. ie a second VTOC and Directory. AFAIK, only Superdos 5.1 has this format type.If this disk is put into a single sided drive, the files stored solely on side one can still be read.

    Superdos of all variants is dos 2 compatible. Dos XE has its own format incompatible with everything else like atari dos 3.

    Finding a dos that can read all known atari formats doesn't exist. closest would be latest sparta tho addins will need to be written to read other formats

     

    James

     

     

    OK, so I tried the superdos 5.1

     

    I really liked the idea that one dos could handle all the drives I have. (see signature)

     

    BUT - It could not successfully format my XF551 in DS mode. Not any disk ..

     

    I could format the DS on the XF551 with Sparta dos.. but nothing but spartados reads it.

     

    I could format the DS with DOSXE.. and I thought that Superdos was using the same format.. but I cannot read the XE format with Superdos.

     

    So.. I am back to the start again.. looking for a dos that can read all formats.

     

    James

  16. Posted

    Did you get it from here? http://ftp.pigwa.net/stuff/collections/Pooldisk/CD1/BRADFORD/or similar? Also other places as well

     

    I remember typing that out years ago from the original paper sheets and putting it out there

     

    James

     

    Here is SuperDOS 5.1 Manual

    My opinion - It's VERY interesting DOS!

     

    SUPERDOS

    SuperDOS V5.1 was designed for the more advanced user who needs a DOS
    with true double sided, double density operation. The aim was to keep
    the program short and powerful. Until now Atari DOS 2 seemed to be the
    most convienient DOS to use but was only capable of single density and
    was memory inefficient. Other double density DOS's are available but
    they use heaps of memory or are extremely slow because you need to load
    a file to perform each function.



  17. Posted

    Looking at the code, T version sets the high bit of port A to output. Is there a ram expansion that uses this bit??

     

    James

     

    Probably TOMS for their drives. Or maybe Tygrys - Marek Bojarski for his Tygrys Turbo.
    If not, I do not know.
    I have somewhere SuperDOS 3.7T. Also do not know who did it and what for.

  18. Posted

    I plugged the rom into a cart board, put it in to my XL and used a monitor to copy selected parts then did a load from the switching address and read selected bits again. Easy :)

     

    James

    Very similar pinout, but I'm guessing (haven't traced it out yet!) that the GVpp (program) line of the 2732 is actually an A12 line instead on the v7 ROM.

    It would be nice to know who dumped the Happy 1050 v7 ROM and what they did to get the full 8k...

    • Like 2

  19. Posted

    Just compared dos 4.3 and 4.3T. T has extra code in ramdisk handler and other differences that don't make sense. Thus making it different from about $A10 on. No idea who did that.

    Sdup and Tdup would be similar as expected. Will need to find the matching AUX.SYS file for 4.3T.

     

     

    James

  22. Posted

    All 8 bit ones. superram, supermon, printmon , superled. across all 8bit platforms except XEGS and whatever wasn't available in australia. nothing for the 810.

    Only received source for superdos.none of the others. I have sereral most of the boards.

    Will visser kept the st ones namely supermon cart and ram upgrades.

    I also have roms for the Hackers delight (John Nicholls) monitor and 1 board. It is 800 only. It has built in eprom burner software used with a burner kit done by an electronics mag in early 80's

     

    James

    Thanks, James. That's a nice explanation!

     

    Edit: Just out of curiosity, did you get the rights to any other Super products besides the Supermax and SuperDos?

     

    Larry

  23. Posted

    Superdos is the matching software. 4.3 and earlier was supermax exclusive. 5.1 included format routines to support USD format commands.

    SuperMax is a USD clone but it doesent support the USD format command. It came with an 8k rom, 1/2 had a std 1050 rom to support copy protected disks as some wouldn't load with supermax rom.

     

    When i got the rights to the 8bit line of super products, 1st thing i did was dissemble supermax and add in a USD format command, Added a small delay that fixed the protected software issue (USD had it, SuperMax didn't) and added a download command to read memory from anywhere in the memory map.

    I was thinking of adding a smart buffer read VTOC and directory sectors depending on the dos. but didn't get there.

     

    James

    I was looking for docs and or software for the 1050 Supermax drive and was linked to this older thread. Read through it, but am unclear on a couple of things:

     

    Is there any docs and specialized software for the Supermax or did it use use Happy software or something else? Or is it basically a "speeder" that does not have any specialized copy functions like the Happy or Archiver series? From above, this looks to be the case -- it's a speeder and anything extra was included in SuperDos. (?)

     

    -Larry

    • Like 2
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