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I'd like to eventually emulate some accelerator cards and to that end I have dumps of the 4.0.1 and 4.1.1 ROMs for a DayStar 040 accelerator. I think it's the Turbo 040, but I'm not 100% on that. The problem is that the dumps don't contain any valid 68K code that I can tell, so I'm assuming...

The SCSI Manager software architecture had the implementation details of the 53C80 baked in, so the 539x, MESH, and IDE (!) drivers all had to pretend to be a 53C80 in various ways. That was not a recipe for high performance; I would assume OS X and Linux get better performance on the same...

FWIW, MESH is based on the 53CF96 but is not 100% compatible. Apple removed the features they didn't care about and added a few extras that they did.

Check under slots in TattleTech. Most PDS cards pretend to be NuBus and will show there.

Yeah, I usually quote people that you want a machine in the range of 20-40 times faster than what you're trying to emulate. I don't think even a static recompiler would get full speed Game Boy on a Plus, but don't let me stop you. For endianness, a trick we've used in MAME since almost the...

I've got basically nothing for portables, which is why it's been rough getting any of them emulated, and as far as I know there aren't any Bomarc schematics for them either.

The original iMac hardware was pretty much a repurposing of the NC development, from what I understand. In NC form it wouldn't have had a built-in CRT or optical drive, of course.

Schematics and the driver are in the same directory, as well. The Apple-branded LocalTalk cards I gather are relatively rare.

How old is the car? If it's a classic with no electronics besides the radio that's fine. If it's got computer modules and a CAN bus, the interference could potentially mess with all that stuff.

Just went up at Bitsavers. Lots of info on how to write PC DOS programs that use LocalTalk services. http://bitsavers.org/pdf/apple/networking/localtalk/LocalTalk_PC/APDA_M7055_LocalTalk_PC_Card_and_Driver_Preliminary_Notes_198708.pdf

"Could not find a PTY" is a software issue, it's unrelated to the cable.

You can definitely use a Ethernet NuBus card on Quadras with built-in Ethernet, at least with OpenTransport. So I imagine the SCSI/Link should be OK in that case too. MAME and QEMU both should be able to interchange disk images with real hardware seamlessly. It can be slightly more involved...

All of the later all-in-one Macs (Classic II, Color Classic, LC520/550, etc) have dedicated brightness and contrast PWMs at $50F18000 and $50F18001 respectively. That's on my list of things to emulate.

Yeah, pre-SWIM Macs won't read MFM in either density obviously. The PC Transporter chip looks from software more like a predecessor to New Age (the GCR-capable modified uPD765 found in the Quadra AVs) than a double-density SWIM.

We emulate that card in MAME and didn't see any hint of support for anything other than 640x480.

It's been a while, but 720K MS-DOS disks are treated the same as 1.44M ones as far as I remember. If Apple File Exchange is installed it's pretty seamless. 800K Apple II disks work with Apple File Exchange as well; I don't know if 1.44M ProDOS disks were supported or not since the Apple II...

The only other B&W G3 I have is the DVT, so earlier rather than later, and I don't have any G4s other than what @3lectr1cPPC has on MacDat.

You could just ask :cool:

System 7 Pro was the marketing name for 7.1.1. In 24-bit mode it's a reasonable mid-point between being ancient with 6.0.8 and needing a lot of RAM for 7.5.0 or 7.5.5.

Right, ADB enumerates the ADB devices once at power on and once more around SecondaryInit time (where 7.5.0 and later clear the initial Welcome banner and the boot thermometer appears). That's the major reason you can't hot-plug ADB devices.