Jump to content

Forums

  1. Important Information

    1. The 68kMLA Forum Rules   (10116 visits to this link)

      To quote vintage Apple manuals: "Read Me First!"

  2. Community Connections

    1. General 68kMLA News & Stuff

      What's going down in the barracks.

      3972
      posts
    2. Conquests

      Discuss your latest vintage Mac finds!

      39543
      posts
    3. Trading Post

      Feel free to trade all of your Mac goodies here with all honest intentions. The website provider assumes NO liability, so buyer beware! Please see this topic for more information.

      53048
      posts
  3. Projects & Hosted Forums

    1. RetroChallenge

      What can you do given only one month and strictly "retro" hardware? Find out with RetroChallenge!
      http://retrochallenge.org/

      1486
      posts
    2. 68kMLA Wiki

      The creation and maintenance of the 68kMLA's information repository.
      http://68kmla.org/wiki/

      498
      posts
  4. 68k Model Forums

    1. Compact Mac

      Macintosh, 512k, SE, etc.

      45943
      posts
    2. Mac II, Quadra & Centris

      Just think, having a Quadra 950 in 1992 would be like having a Mac Pro today… except with more slots, more expandability, and on-board SCSI!

      13061
      posts
    3. 68k LC & Performa

      Ah, the consumer computers!

      7957
      posts
    4. 68k PowerBook

      From the Portable to the 190cs.

      9867
      posts
  5. PowerPC Model Forums

    1. NuBus Power Mac, LC & Performa

      The NuBus architecture gets a new brain!

      2672
      posts
    2. PCI Power Mac & Performa

      The PPC comes of age and adopts the industry standard expansion slot.

      5881
      posts
    3. G3/G4/G5 Power Mac, iMac & eMac

      From the Beige G3 to the quad-core G5, via various iMacs!

      13731
      posts
    4. PPC PowerBook & iBook

      All that power in a laptop? Never…

      8966
      posts
  6. Everything Else…

    1. Apple I, ][, /// & Lisa

      Not really 68k Macs, but certainly Vintage!

      7394
      posts
    2. Newton

      The best PDA ever finally gets its own forum!

      1066
      posts
    3. Software

      Includes system stuff, productivity, emulation, design, and games for pre-OS X Macs!

      17461
      posts
    4. Hacks & Development

      Yes, it's back! Hardware hacks/modifications and software development for Mac OS.

      18582
      posts
    5. Peripherals

      Anything you can hook up to your Mac or stuff into it as an interface!

      14539
      posts
  • Posts

    • Vague warning that the 128ke is not a great setup - as I recall the 128k ROM loads HFS into RAM, or something, eating up precious kilobytes?
    • Link to original thread's down. Out of curiosity, how does the Snail's speed compare to Asante Cards on the 030 PDS? If I could manage the build, I'd probably get one for my SE that's chock full of Radius cards just to get it a Wifi antenna on the breakout board up and running.
    • Got the Sony Test betas running on the 512!  

        The “Steve sez...” dialog boxes in version 7 are just beyond cool!
    • Cool beans, just thought I should stick my nose in about it in case it might be helpful. Still curious about any difference there might be in thickness between gold plated vs  whatever the silver stuff might be?   Is the difference in thickness really a mechanical problem the contacts or might it be in the retaining seat/clip interface? Offhand I'd think it was topside if rubber bands, clips and such solve the problem? Such would be a mechanical fix topside, no? So I'm wondering about it from both sides ()top to bottom) of the problem as I'm not convinced it's the contact thickness at the root of the problem? Forgot to mention that part.
    • I don't know of any, but in general, check each slot for a dual parallel port card, if installed check each card for the OCD bit - Open Cable Detect, if the cable is connected, there might be a drive there. If there is a drive there, you can try to probe reading of block 0x00ffffff - this will give you the name and size of the drive, and whether it is a ProFile like or a Widget like drive, but don't depend on the text name, look at the protocol version. Take a look at the Widget ERS for this. If you don't want to deal with the crazy multi-block read/write commands, stick to ProFile-y commands only - the Widgety drives are backwards compatible with this protocol, though it's slightly slower.   Note that SunRem and Corvus made compatible drives that may have different sizes, but that -1 block will give you the size of the drive. Please don't do what Lisa Office System and Xenix did - they hard coded the expected drive size inside the driver :facepalm: - as a result, if you attach a 30MB or 40MB SunRem MFM drive you could only use the first 10MB.   The ROM routine for the ProFile only contains a read block routine only for ProFile style disks, but you can pass the address of the VIA and thus test both the motherboard parallel port for an attached hard drive - whether Widget or ProFile (or X/ProFile), and any/all of the 6 possible attached external drives.   You'll need to hook the bus error vector to prevent crashes as accesses to non-existant ports won't properly signal DTACK and so will generate a bus error. You can setup the ISV (Interrupt Service Routine) ahead of time to write a flag saying that port isn't there before you call the ROM profile read routine and maybe maintain an array of info about what's connected where and what size it is.   From what I recall, if you have 2 port serial card, the 2K ROM onboard does a quick check of the port, and then if clicked for boot, would set the right variables to the address of the port and pass them to the Boot ROM ProFile routine to read the block and boot that way, I don't think they contain actual ProFile read routines.
×