Has anyone used QEMU w MIPS64 support to run IRIX on Intel?

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dukzcry
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Re: Has anyone used QEMU w MIPS64 support to run IRIX on Intel?

Unread postby dukzcry » Thu Sep 17, 2015 11:09 pm

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Re: Has anyone used QEMU w MIPS64 support to run IRIX on Intel?

Unread postby Krokodil » Sat Sep 19, 2015 2:53 pm

dukzcry wrote:Octane??? Oh, man...
Wasn't Indy the only machine for which SGI released a minimum portion of needed documentation? Also the simpler architecture, the more chances to get a good emulator, we're hunting for more cycles anyway. And recent machines are not supported by old IRIX releases. Emulation of a mature graphics subsystem is another question though :(


Octane is just an example.It could be any SGI system that could showcase the best of SGI. Unfortunately, if I'm not mistaken alot of the documentation was either lost or destroyed, like the information on the O2's ICE chipset.
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nyef
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Re: Has anyone used QEMU w MIPS64 support to run IRIX on Intel?

Unread postby nyef » Sat Sep 19, 2015 9:09 pm

Krokodil wrote:
dukzcry wrote:Octane??? Oh, man...
Wasn't Indy the only machine for which SGI released a minimum portion of needed documentation? Also the simpler architecture, the more chances to get a good emulator, we're hunting for more cycles anyway. And recent machines are not supported by old IRIX releases. Emulation of a mature graphics subsystem is another question though :(


Octane is just an example.It could be any SGI system that could showcase the best of SGI. Unfortunately, if I'm not mistaken alot of the documentation was either lost or destroyed, like the information on the O2's ICE chipset.

For Octane specifically, we could do with documentation on IOC3, HEART, Impact (MardiGras?), and Odyssey. On the other hand, there are open-source operating systems which run on this hardware already, and may be a usable source of information.

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Re: Has anyone used QEMU w MIPS64 support to run IRIX on Intel?

Unread postby Nyebodnye » Sat Sep 03, 2016 4:41 pm

Emulating a CPU is one thing, emulating the rest of the hardware is another thing.
Unless you understand the graphics system, IO system, and all the rest of the way the hardware works,
you will have something that won't even boot. You need someone who made the hardware to give you insights
into how to code software that will emulate the hardware.
Then again, people have reverse engineered arcade games and made MAME so there is hope.
Just need enough geeks with enough time and it may be possible.
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