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PostPosted: Fri Apr 10, 2020 1:49 am 
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Space Cadet

Joined: Fri Apr 10, 2020 1:25 am
Posts: 3
Hello total n00b with SheepShaver and Linux command line. I've been reading the guide and these forums and tinkering for hours, and I've finally got to the error above in the subject. I'm running Elementary OS 5.1.3 Hera, which is based on Ubuntu 18.04 LTS. I edited the /etc/sysctl.conf file (yikes!) I'm using the latest build by Vasi. I've worked through several errors and I finally got to this:

Code:
SheepShaver V2.5 by Christian Bauer and Mar"c" Hellwig
Reading ROM file...
Using SDL/pulseaudio audio output
Using SDL_Renderer driver: opengl
Detected CPU features: MMX SSE SSE2 SSE3 SSSE3
PowerPC CPU emulator by Gwenole Beauchesne
Illegal instruction at 40c6d304, opcode = 0f040000
Aborted


Help!


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PostPosted: Sat Apr 11, 2020 5:04 pm 
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Apple Corer

Joined: Sun Feb 01, 2009 4:55 pm
Posts: 279
Make sure you disable illegal opcodes - Seems like you came across a twi opcode.


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PostPosted: Sun Apr 12, 2020 4:29 am 
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Space Cadet

Joined: Fri Apr 10, 2020 1:25 am
Posts: 3
Thanks for the tip! How do I disable illegal opcodes? And what's a twi opcode?

I can see there's a lot to learn before I can get SheepShaver working on Elementary OS. Has anyone considered building it as a flatpak? Is this even possible? I'm just fulla' questions! :-)


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PostPosted: Sun Apr 12, 2020 11:28 am 
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Expert User
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Joined: Fri Feb 13, 2004 8:59 am
Posts: 4887
Location: Sittard, The Netherlands
You can set:

ignoresegv true
ignoreillegal true

in your prefs.

Best,
Cat_7


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PostPosted: Sun Apr 12, 2020 5:48 pm 
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Space Cadet

Joined: Fri Apr 10, 2020 1:25 am
Posts: 3
Hmm... set both to true in the prefs file, now I get a black window, and SheepShaver is using most of my CPU cycles. If I start from the terminal it just endlessly repeats the message:
Illegal instruction at 40c6d304, opcode = 0f040000
Illegal instruction at 40c6d304, opcode = 0f040000
Illegal instruction at 40c6d304, opcode = 0f040000
...

If I start form the GUI I can't shut it down :-(

What's next?


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