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  1. J

    TashTalk: Single-Chip LocalTalk Interface

    The DingusPPC emulator uses a Unix Domain Socket. I suppose you could pipe that to a TCP port or a TTY device or a serial port using socat. But for output to a real serial port device, you would want the emulator to use that serial port character device directly which can support serial port...
  2. J

    Any apps that probe Nubus space?

    I've added your commit to my fork. I don't know if it works. Try the release: https://github.com/joevt/SlotsDump/releases/tag/v1.7 The .mcp files are CodeWarrior Pro 4 project files (CodeWarrior IDE 3.3).
  3. J

    DumbDD

    It should save properly, as it would be interpreted as an entire disk. If the iso is from a CD, then the resulting .img might be suitable only as a CD. I would examine the partition map of the disk image using dumpvols.sh on macOS to see if it makes sense for a CD or HD. CDs might have block...
  4. J

    Any apps that probe Nubus space?

    I'm not sure about Macintosh II. SlotsDump worked with a Macintosh LC at least. And a IIfx. When I tried them in 2004. I don't remember if they were 24 bit or 32 bit addressing. The LC had slot 0 at 00A7FFFF (ROM) and slot E at FEFFFFFE (PDS Ethernet). The IIfx had slot 0 at 4087FFFF (ROM) and...
  5. J

    DumbDD

    DingusPPC has SCSI hardware emulation. It can boot Mac OS 7.1.2 to Mac OS 9.2.2 from a virtual SCSI hard disk. Whether it's proper or not depends on if it works with whatever you're trying to do. If you're writing to a SCSI hard disk, note that the disk image should be blank or have an Apple...
  6. J

    Connecting an Apple Monitor to VGA

    I wonder if any modern GPUs support Apple Sense codes? https://tinkerdifferent.com/threads/documentation-for-db15-to-vga-adapters.318/post-21288 If not, then you'll need to setup a custom timing that matches whatever is required by the display. Here's some timings at...
  7. J

    Mac Classic issue with MacTerminal

    But there are two serial ports. AppleTalk usually uses the printer port. So the modem port should be free. What port is selected for AppleTalk? Of course, if you don't have an AppleTalk network, then AppleTalk should be turned off.
  8. J

    PowerMac G5 with a surprise inside

    I suppose if you can't move it to a PC and use NVFlash from Windows or DOS to dump the ROM, and if there's no Mac utility to do the job (Graphiccelerator? NVUserXFlash? NVIDIAFirmwareUpdate? ATI Multi Flasher NVidia? ATI Multi Flasher NVidia.app?) then there's a couple options: - Get a dump...
  9. J

    PowerMac G5 with a surprise inside

    Can you get a ROM dump of the card? I want to compare it with the 6800 ROM dump that I have. I also created an Old World Mac compatible version of that ROM and some other Nvidia ROMs (6200, 6600, 7800) that only worked in New World Macs. PCIe cards require a PCI to PCIe adapter for most Macs...
  10. J

    Apple LocalTalk interface box

    Asynchronous in this case just means that the sender and receiver don't share a clock? They must use the x16 or x32 or x64 clock mode to recover the clock from the receiver. They don't have a start bit or stop bits? They use a SYNC character? I'm adding logging to DingusPPC to show how the SCC...
  11. J

    New Project: DoubleVision SE/30 Card

    The Hammerhead memory controller in those machines actually supports an extra 128 MiB on top of that 1.5 GiB (1.625 GiB total 0x68000000). You can try this in the DingusPPC emulator. The problem with > 1.5 GiB 0x6000000 is that the 68K emulator used for classic Mac OS versions is hard coded to...
  12. J

    Apple LocalTalk interface box

    External clock is probably the easiest and best choice: https://68kmla.org/bb/threads/localtalk-but-faster.45615/post-505309 The PCLK could be used, but there's a couple issues with that: - Different Macs have different PCLKs. Maybe only Power Macs had PCLKs in the >10MHz range. - The PCLK has...
  13. J

    Apple LocalTalk interface box

    Maybe this document explains it? https://www.zilog.com/docs/z180/appnotes/loctalk.pdf
  14. J

    Apple LocalTalk interface box

    printer cables are cross over but modem cables are not cross over. Well, a modem cable probably won't be mini-din at both ends so it doesn't matter.
  15. J

    Reinstalling ANS from Zulu/BlueSCSI

    I've never booted aix before. Dumps of the ROM's Open Firmware assembly and Forth/fcode is at https://tinkerdifferent.com/threads/apple-network-server-macos-based-roms-found.4756/post-41404 The load word from the aix-boot package (used when booting :aix) is supposed to set a aix-block0...
  16. J

    PCI-X to x4 PCI Express Adapter Card

    It could be bootable if there's a PCI option ROM to hold a driver. Some NVMe's do have a PCI Option ROM. Most do not. New World Macs can have their firmware modified by a firmware updater. Old World Macs can have a ROM SIMM replacement. An nvramrc script can load a driver from a disk that is...
  17. J

    Studio Session by Bogas Productions (1986)

    What's MDS? MacASM is an assembler? Developing in a higher level language such as C or Pascal is probable preferable.
  18. J

    Need some assistance with a Summer 2000 iMac G3

    It might be possible to override the Mac OS X HeathrowATA driver with a patched version to enable LBA48. It would only work for Mac OS X though. Open Firmware needs a separate patch. I'm working on the Mac OS X and Open Firmware patches now. For Open Firmware, getting beyond the 8 GB CHS limit...
  19. J

    PCI-X to x4 PCI Express Adapter Card

    One would be nice for testing Thunderbolt, or USB 3.x, or NVMe or 2.5 Gigabit Ethernet in an old PowerPC Mac. Sure, I can use the StarTech PCI to PCIe adapter but that only gives up to 133 MB/s (I don't know if it can support 266 MB/s in a Yosemite or Yikes 66 MHz slot - and that slot is usually...
  20. J

    PCI-X to x4 PCI Express Adapter Card

    I've connected PCIe Nvidia 7800GT Mac Edition from my Quad G5 in a B&W G3 using a StarTech PCI to PCIe adapter. There's some notes about that and PCI/PCI-X to PCIe bridges at...
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