Sheepshaver Not Booting - 5,1 Mac Pro w/Sequoia

[riven2000]

Hi All,
I am trying to get SS running on the above Mac and AFAIK I have all the right files in one SHEEPSHAVER folder, but it just crashes. The Mac OS ROM file is one mentioned here so it should be compatible, but nothing is working. This isn't a Sequoia issue, is it? It's 15.5.

Any help is greatly appreciated!

[Ronald P. Regensburg]

Our SheepShaver builds will not run on OCLP patched Intel Macs.

There is a special build for OCLP patched Intel Macs running macOS Ventura. It is reported to not work in Sonoma. I suppose it will not run in Sequoia either.

If you want to try it, make sure JIT is disabled in the ~/.sheepshaver_prefs file. (You can edit the file using the Edit prefs file script in the SheepShaver folder.)

http://www.absurdengineering.org/sheepshaver/

[riven2000]

Thanks!! I'll look at that and some other things.

[riven2000]

Correction - got it to work in Sequoia / OCLP.

[VintMac]

It looks like you got SheepShaver to work with an intel Mac running OCLP Sequoya 15.5 - I seem not to have successful yet - tired the SS build that is supposed to work with OCLP - disabled Jit but still: SS quits before it gets to the boot screen - any suggestions?

[DanMe]

Hello all,

Tried a lot over here.
Unfortunately SheepShaver and WPMacapp don't work in OSX Sequoia 15.5 + OCLP.
Hope someone can reprogramme it.
Although I realize it cost time...

I see more small software builders ask for for a contribution of your own choosing ('buy me a coffee' etc).
Maybe this is also a idea for new SheepShaver versions?
Then: programmers get a small fee in return for all their work
And with this money, they might be willing to develop new fun things...
Cheers, DanMe

[emendelson]

You might ask the OCLP programmers to fix it. They will understand the problem better than anyone else.

[adespoton]

Hello all,

Tried a lot over here.
Unfortunately SheepShaver and WPMacapp don't work in OSX Sequoia 15.5 + OCLP.
Hope someone can reprogramme it.
Although I realize it cost time...

I see more small software builders ask for for a contribution of your own choosing ('buy me a coffee' etc).
Maybe this is also a idea for new SheepShaver versions?
Then: programmers get a small fee in return for all their work
And with this money, they might be willing to develop new fun things...
Cheers, DanMe

With SheepShaver, the original developers have long since stopped updating the code; the source is available for anyone new to tweak as they see fit. However, there's a lot of legacy design logic in SheepShaver that's not a good fit for today's computing environment; it would really need a re-write to fix all the underlying issues. And anyone interested in doing a re-write is more likely to work on a different emulator -- which is why we have QEMU and DingusPPC both able to emulate everything SheepShaver can emulate (albeit without sound), and MAME getting really close to the same capabilities as well.

Can it be done? Probably. But anyone motivated to do it isn't going to be motivated by money -- it's going to have to be someone who uses the emulator who has the skills to do a re-architecting of it and the time and inclination to pull it off. I don't believe there's currently anyone in that position.

However, we said this once before, when it looked like SheepShaver was going to terminally break with one of the older OS X updates a number of years ago. In this forum we started encouraging people to use QEMU Screamer build instead -- and then a few enterprising developers came along and figured out how to patch SheepShaver to keep it running. Unfortunately, even with those patches, the code isn't compatible with what the OCLP guys patched to keep newer OSes running on older hardware.

[kanjitalk755]

I tried to implement a workaround.

Add following to the end of macemu/SheepShaver/src/MacOSX/config/config-macosx-x86_64.h and build.

Code: Select all

#define MEM_BULK

Confirmed in the following environments.

Mac mini 2012
OCLP 2.4.0
macOS Sequoia 15.5
Xcode 16.4
SDL2 2.32.8

You have to set "jit false" in prefs.

[PBobbenB]

Works here too!

Running on an iMac 21,5" mid 2011
OCLP 2.4.0
Sonoma 14.7.6
Xcode 16.2
SDL 2.32.8, Gmp 6.2.1, Mpfr 4.2.2

Thank you for the fix!

[adespoton]

So does this have the potential to also help in Windows with the other fixed memory location issues? Or does it mostly move the issue to elsewhere in memory?

[Ronald P. Regensburg]

As far as I can see, the suggested addition to macemu/SheepShaver/src/MacOSX/config/config-macosx-x86_64.h is for macOS on Intel only.

[kanjitalk755]

So does this have the potential to also help in Windows with the other fixed memory location issues? Or does it mostly move the issue to elsewhere in memory?

This has potential to solve the problem, but it also has cons.

Pros:
Do not acquire memory by specifying address
Do not use shared memory

Cons:
The JIT compiler is invalid
Requires 1.5G bytes including unused space

[ludwig0701]

I tried to implement a workaround.

Add following to the end of macemu/SheepShaver/src/MacOSX/config/config-macosx-x86_64.h and build.

Code: Select all

#define MEM_BULK

Confirmed in the following environments.

Mac mini 2012
OCLP 2.4.0
macOS Sequoia 15.5
Xcode 16.4
SDL2 2.32.8

You have to set "jit false" in prefs.

Is there a prebuilt binary somewhere? that would be awesome!

[PeterHolbrook]

Can someone please upload the experimental SheepShaver app that will work on a Mac Pro 5,1 running Sequoia?

[Ronald P. Regensburg]

It will take you no more than 15 minutes to add the additional line and then build SheepShaver yourself. (For me 15 more minutes because I need to notarize the app for others to use.)
I cannot test it myself as I have only an Apple Silicon Mac, but this one should do it: https://www.emaculation.com/sheepshaver ... (OCLP).zip

Make sure JIT is set to false in prefs file!

[PeterHolbrook]

Yes, I can confirm it works fine. Many thanks!