- #Why can't an old motorola mac emulator run on a modern system mac os
- #Why can't an old motorola mac emulator run on a modern system serial
- #Why can't an old motorola mac emulator run on a modern system driver
- #Why can't an old motorola mac emulator run on a modern system full
- #Why can't an old motorola mac emulator run on a modern system software
The place to be exploring for a more realistic environment to run Mac OS 9 is QEMU-PPC.
#Why can't an old motorola mac emulator run on a modern system software
Useful for playing old games, transferring software to HFS disk images for old PPC computers, networking with old PPC computers. It also still only supports up to Mac OS 9.0.4. There are new versions of SheepShaver out now that use SDL2, and are more stable/capable, but they still have the same limitations on hardware support.
This means it's fast for the vast majority of software that is only doing standard things (no GPU, no external hardware of any sort like MIDI, etc), but won't do anything else. SheepShaver achieves its speed by doing a lot of work outside the emulated environment. But to be fair, the program is a crap Windows port which runs poorly in the best case anyway.īumping an old thread to provide some more (and newer) details. That was Acousmographe 1.2, which complained that it needs to be installed to either a SCSI or IDE drive and finds neither. I wouldn't want to need to do anything tight with that setup, but it might be a workaround for SoundDiver, sample dumps, and such.Īlso, I did have one program refuse to run because its copy protection didn't like how SheepShaver virtualizes HFS drives.
#Why can't an old motorola mac emulator run on a modern system driver
Another more flexible option might be to code some sort of bridge, an abstraction layer which could appear as an OMS driver in the emulation, and act as a go-between with CoreMIDI. Did it ever work? Does it now? If/when I can be arsed to try, I might hook up something relatively simple, like a printer or terminal and see if those work. This part of the code has scarcely been maintained. BUT nobody has tried using it in recent memory.
#Why can't an old motorola mac emulator run on a modern system serial
Fact is though that SheepShaver does have some vestigial serial I/O. And they assume that nearly all prospective MIDI users would be trying to use it with a USB interface. The main problem with MIDI (besides that it would have horrendous timing) is that the project handles USB I/O by converting it all to ADB. I did a few quick edits of 24-bit 48kHz sounds and it played fine through CoreAudio. I doubt if it will be suitable for serious work/play, but it's handy enough if I need to quickly run an OS 9 utility and not want to set up one of my systems to do it (I don't have much room).Īs for Chris' remarks above about it being useless for MIDI and audio - on MacOS it does audio straight away, but obviously not "pro audio". The overhead is pretty huge on my i7 box - about 10% CPU idle to 50-100% when handling any user interaction. It's easy if one already has Mac ROMs and OS on hand. I wanted to analyze some audio files with a NRT program I have, and after searching and not finding anything which would do it the same way on a modern system, I figured that it might take me less time to do it on my main OSX-Linux box. I first tried SheepShaver last week when my MDD G4 wouldn't boot. I think the best bet would be to wait the 20 years for OS 9 to become abandoned and start developing it in a parallel track to fit on modern hardware (PowerPC preferred of course -)
#Why can't an old motorola mac emulator run on a modern system full
Maybe at that time, we can see better emulation of full operating systems. One day I believe the world will realize the PowerPC was the better track and we will start to see it flourish again. My personal opinion is that with progression in the FPGA field, improvements in software that is fully aware of system hardware, and the clever genome style of writing that a computer can perform on itself.we may be a lot closer to replacing large chunks of these specific machines with an FPGA than we will ever be with consumer grade processors. Some emulators that are based in hardware (see the Big Mess O' Wires) have a little better luck. And HE'S trying to emulate an ARM on an ARM! Getting anything higher than OS 9.1 is just not going to work. In fact this is one of the most difficult items to emulate in software. The obvious omission in Sheepshaver is the Memory Management Unit. PAPR and CHRP are mildly well documented but it doesn't identify the various packages that Motorola added to the core processor or even the final development of ANY retail logic board. IBM has the ISA available for POWER but it doesn't outline the entirety of the systems in their retail form. One of the many headaches with emulating a chunk of hardware is finding all the instructions in one place. That's generic from the point of view of the ISA. Please keep in mind that I'm still a student and my experience may be full of flaws.
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