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This forum is part of our mission to promote the preservation of vintage computers through education and outreach. (In real life we also run events and have a museum.) We encourage you to join us, participate, share your knowledge, and enjoy.

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Anyone Selling XT-IDE Cards?

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    This is work in progress, but:

    http://www.xtideuniversalbios.org
    http://www.xtideuniversalbios.org/binaries

    Comment


      http://www.xtideuniversalbios.org/binaries/ needs to be a prominant link on the main page somewhere. Otherwise, if you consider that a work in progress, I cower in fear at the thought of what the finished product is -- it's already brilliant.
      Offering a bounty for:
      - A working Sanyo MBC-775 or Logabax 1600
      - Music Construction Set, IBM Music Feature edition (has red sticker on front stating IBM Music Feature)

      Comment


        Originally posted by Trixter View Post
        -- it's already brilliant.
        I agree, An excellent job, Better than the old google code site, Good idea on the 'Pre-built binaries download center', Handy for those who don't want to build from source and yet have access to the latest revision, And the source is available as it used to be.

        Comment


          There are still two uncovered issues with xtideuniversalbios:

          1) It hangs on the drive benchmark in the Norton Utilities (NU SYSINFO menu-driven version).
          http://www.vcfed.org/forum/showthrea...313#post364313
          It seems SYSINFO plays dirty tricks with interrupt timer trying to be "multitask" and BIOS hangs.

          2) Bad coexistance with 8-bit MFM controllers and their BIOSes while FULL_MODE and boot menu are disabled.
          Most of 8-kb "lite" controllers use short BIOS version and affected. Simptoms: can't boot nor MFM
          nor xtideuniversalbios-driven drive, "C" and "D" letters does not work. Both controllers are working
          "solo". No resource overlapped.

          Comment


            Thanks for the comments. The binaries thing does indeed need a link, but anyway it's driven from a post-commit hook so as soon as new code is pushed in, the binaries will be right there.

            Thanks for the issue reports. Something not yet working is self service registration that will allow you to create an issue ticket. But please bear in mind all of this is incredibly time consuming so please be patient

            Comment


              Originally posted by pearce_jj View Post
              TBut please bear in mind all of this is incredibly time consuming so please be patient
              Important to remember with any open-source project, especially those where the work isn't anyone's day-job!
              Check out The Glitch Works | My Retro Projects | Vintage Computer Services | Glitch Works Tindie Store -- Vintage Computer Kits and More

              Comment


                Originally posted by alecv View Post
                1) It hangs on the drive benchmark in the Norton Utilities (NU SYSINFO menu-driven version).
                http://www.vcfed.org/forum/showthrea...313#post364313
                It seems SYSINFO plays dirty tricks with interrupt timer trying to be "multitask" and BIOS hangs.
                According to http://www.vcfed.org/forum/showthrea...707#post368707 it is a bug in SYSINFO: "The BIOS actually returns from the call to INT 13h AH=10h (AH10h_HandlerForCheckDriveReady as you noted) with a Timeout error (AH=80h) but SI ignores that and keeps calling the same function in its own timeout loop which keeps spinning for 65535 times.".

                That sounds like the problem is with SYSINFO, not the XUB.
                Offering a bounty for:
                - A working Sanyo MBC-775 or Logabax 1600
                - Music Construction Set, IBM Music Feature edition (has red sticker on front stating IBM Music Feature)

                Comment


                  I suppose SYSINFO triggers internal error in the XUB. I seems a stack corruption or race condition or reenterancy failary. I did a trace, it hangs on the Drive Ready waiting. SYSINFO does a very quick poll a BIOS to determine transfer speed. On some fast or caching controllers SYSINFO can't determine speed and writes message about "advanced controller".

                  Comment


                    Feel free to debug....

                    Comment


                      Originally posted by alecv View Post
                      I suppose SYSINFO triggers internal error in the XUB.
                      I don't think the XUB is at fault here. I think you're ignoring the part where sysinfo "keeps calling the same function in its own timeout loop which keeps spinning for 65535 times". That's a terrible design choice. A proper busywait loop would set a time quantum of (for example) 5 seconds, and stop retrying after that time period had elapsed. The designers of SYSINFO assumed all int 13h,10h calls return almost immediately, but that was never their assumption to make. IBM's own PS2 and PC BIOS Interface Technical Reference makes no mention of how long that status call should or shouldn't take.

                      I don't consider the SYSINFO hang to be a result of the XUB, but rather poor coding. The XUB Int 13h,10h call returns successfully after a few seconds.
                      Offering a bounty for:
                      - A working Sanyo MBC-775 or Logabax 1600
                      - Music Construction Set, IBM Music Feature edition (has red sticker on front stating IBM Music Feature)

                      Comment


                        Agreed, code style is ugly. However NU SYSINFO was extensively used in 90'th and there were no reports "hangs on transfer speed test" for many many systems. As shown in trace, this code
                        Code:
                        call    IdeIO_InputStatusRegisterToAL
                        test    al, FLG_STATUS_BSY                    ; Controller busy?
                        jnz        SHORT .UpdateTimeout                ;  If so, jump to timeout update
                        always return result "controller is in BUSY state". It's very interesting which call sequence renders controller to this state even for uber-fast Compact Flash?

                        There was some reports the early 1.1.x XUB does not hangs. SVN bisect may help us to find critical change.

                        It's interesting also to build test-bench with identical hardware i.e. 286 with 16-bit ISA (to exclude 8-to-16 mux effects) and debug native BIOS and XUB.

                        Comment


                          glitch,

                          After posting all the teaser pictures inquiring minds want to know... how are the kits coming along?

                          -J
                          My Site (under construction!) | My Apple Lisa 2/10

                          Comment


                            Just got back from a week-long work trip, it looks like all of the remaining kit parts have come in. I'm not digging into it tonight (9 hours of driving! woot!) but payment request emails should be going out this weekend or Monday/Tuesday next week.
                            Check out The Glitch Works | My Retro Projects | Vintage Computer Services | Glitch Works Tindie Store -- Vintage Computer Kits and More

                            Comment


                              Hello Glitch,
                              Please, remember ( from my old P.M. ) that althrough I have not preordered, I am interested in a full assembled unit OR "board + part kit" depending on price.
                              Please P.M. me if one "full kit" is left and if it is conveniant for you to send it with the first batch.

                              Comment


                                OK! So I finally had time to sit down and finish out the formulas in my big spreadsheet 'o parts, and I've got totals for everything as follows:

                                Bare Board $8
                                Parts Kit (KIT ONLY, NO BOARD) $20
                                Assembled unit $85

                                Shipping in the US as follows:

                                Bare Board (up to 3) $5
                                Parts Kit (up to 3) $7 (USPS Flat Rate Box)
                                Assembled Unit (up to 2) $7 (USPS Flat Rate Box)

                                Greater quantities and international shipping will be quoted per-order.

                                Please note! The parts kit does not include full sockets for everything, only the EEPROM. It's been my experience that sockets for all ICs, unless you're using high quality (read: expensive) sockets for every location, add more trouble than they're worth. All ICs have been sourced from reputable sources with supply chain documentation, so there should be a very low probability of dead ICs out of the package.

                                The EEPROM socket is a high quality machine pin socket with gold inserts. If people *really* want a socket kit -- again, it's been my experience that full socketing is more trouble than it's worth -- I can probably come up with an add-on socket kit.

                                If you preordered bare boards only (I think that was only one person) then order request emails have been sent out. I'm finishing up the script+template to email out the requests for parts kit orders.
                                Last edited by glitch; June 26, 2016, 05:47 PM.
                                Check out The Glitch Works | My Retro Projects | Vintage Computer Services | Glitch Works Tindie Store -- Vintage Computer Kits and More

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