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Mac OS 7.5.5 running on Apple Watch [video]

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Re: Mac OS 7.5.5 running on Apple Watch [video]

#2

Post by liquidise »

Over the weekend i saw an HN article about an x86 compiler written to compile using only MOV commands, after it was proven that x86 MOV is Turing Complete. I was sure this would be the most impressive waste of technology efforts i would see for a long time.

I was wrong. It lasted 3 days.

Re: Mac OS 7.5.5 running on Apple Watch [video]

#5

Post by mburns »

z-cam wrote: post #3

In theory Apple Watch has the processing power for significantly > OS 7 http://www.cultofmac.com/320279/how-powerful-is-the-apple-wa...

MacOS System 7.5.x shipped on ~100MHz PowerPC chips with ~24MB of RAM, a bit higher in the later models. So the Watch most certainly has more processing power.

The real problem is emulating PPC -> ARM, which is a very slow process, and why the boot time is so long in the video.

Re: Mac OS 7.5.5 running on Apple Watch [video]

#6

Post by WoodenChair »

mburns wrote: post #5
z-cam wrote: post #3

In theory Apple Watch has the processing power for significantly > OS 7 http://www.cultofmac.com/320279/how-powerful-is-the-apple-wa...

MacOS System 7.5.x shipped on ~100MHz PowerPC chips with ~24MB of RAM, a bit higher in the later models. So the Watch most certainly has more processing power. The real problem is emulating PPC -> ARM, which is a very slow process, and why the boot time is so long in the video.

For the record, my Performa 6116CD which shipped with 7.5 had a 60 MHZ PPC 601 and 8 MB RAM. It could run on significantly less than that as well - in fact I believe it ran as far back as on some 80s machines.

Re: Mac OS 7.5.5 running on Apple Watch [video]

#8

Post by barclay »

WoodenChair wrote: post #6
mburns wrote: post #5

Earlier quoted context omitted.

MacOS System 7.5.x shipped on ~100MHz PowerPC chips with ~24MB of RAM, a bit higher in the later models. So the Watch most certainly has more processing power. The real problem is emulating PPC -> ARM, which is a very slow process, and why the boot time is so long in the video.

For the record, my Performa 6116CD which shipped with 7.5 had a 60 MHZ PPC 601 and 8 MB RAM. It could run on significantly less than that as well - in fact I believe it ran as far back as on some 80s machines.

Yup. I had an LC520 (25 MHz 030--not that far back from your 6116) that ran 7.5.x.

Re: Mac OS 7.5.5 running on Apple Watch [video]

#9

Post by big_youth »

liquidise wrote: post #2

Over the weekend i saw an HN article about an x86 compiler written to compile using only MOV commands, after it was proven that x86 MOV is Turing Complete. I was sure this would be the most impressive waste of technology efforts i would see for a long time. I was wrong. It lasted 3 days.

What you call useless other people call brilliant. I was at RECon this past weekend and one of the coolest talks was about compiling malware using only MOV. Good luck reversing that.

https://recon.cx/2015/schedule/events/55.html

Re: Mac OS 7.5.5 running on Apple Watch [video]

#10

Post by conradev »

z-cam wrote: post #3

In theory Apple Watch has the processing power for significantly > OS 7 http://www.cultofmac.com/320279/how-powerful-is-the-apple-wa...

My understanding is that it is an A5 processor that is tuned for battery life, at the cost of performance. It all depends on the performance of the emulator, because OS 7 is not compiled for ARM.
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