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Solve : AMD makes pin compatible ARM or x86 chip designs.?

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Here is one report:
AMD unveils plans for ARM, x86 chips that are pin-compatible
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AMD unveils plans for ARM, x86 chips that are pin-compatible
05/05/2014 at 2:00 PM by Brad Linder

Chip maker AMD has been competing with Intel in the x86 market for decades, but recently the company started working on ARM-based chips for servers and embedded applications. With feet in both worlds, AMD plans to do something no company has tried so far: In 2015 the company will offer pin-to-pin compatible x86 and ARM processors.
In other words, system makers will be able to use the same hardware to produce devices with either ARM or x86 chips.
Theoretically that could mean a PC motherboard that can use either of AMD’s next-gen chips, but we’re more likely to see embedded devices, servers, and other enterprise applications first.

Another report says about the same.
AMD Announces ARM-based "K12" Custom Core, Pin-Compatible x86/ARM Chips Coming In 2015
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...
These announcements are a major shift in strategy for AMD, which has always pursued an x86-centric strategy. Up until now, it looked like the move towards ARM servers might be a side business confined to the lucrative server market -- an edge play to see if AMD could gain market share in a hot area, but not a sustained focus for the company's business. That's now off the table; AMD is clearly committing to a combined x86 / ARM roadmap across the entire product segment.
As for the 16nm ARM core, codenamed K12, AMD was cagey about its benefits or capabilities beyond noting that it's a clean design based on the ARM architecture. As we discussed a year ago, most companies that license ARM cores actually license the physical design for a Cortex-A9, A7, or A15, but the company does offer an alternative architecture license. Only a few companies have historically gone this route (Qualcomm and Apple are two of the biggest), so AMD is entering a new field by competing with an architectural implementation of its own making. The company's custom architecture will be ready by 2016, and will likely debut on either TSMC's 16nm FinFET or GlobalFoundries' 14nm process nodes.
...


Earlier AMD say they were going to do this kind of thing.

What this does NOT mean.
It does NOT mean an ARM chip will execute a x86 binary. NO!

It does NOT mean a hobbyist can simply swap out ARM and replace it with a the x86 chip. For one thing, the BIOS must be changed. Not easy.

The advantage is for OEMs who get orders from resellers who want custom low-cost motherboards. This new design motherboard can be tailored to a specific application. Thus reducing the need for a diverse inventory.

But what could this mean for user ordinary users? I think that is a good idea. It gives companies a choice without having to a board for each cpu.I like the idea, but it would be nice is they added a bios feature to have a dual-bios so that is its an ARM or x86 it will auto detect the CPU and run with it. All they would need is say an extra 2 pins to the CPU for a HIGH or LOW when the CPU is installed. If the pins that act as a enable/disable of ARM are used and the BIOS at the lowest level detects to use one or the other then there is no having to worry about reflashing a board to switch from ARM to x86 CPU. It would make a switch between ARM and x86 as QUICK as a normal CPU swap, but then there is the OS that needs to be installed for either ARM or x86.

If I was AMD this is what I would do to make it handle both and autodetect via an electrical contact pin key. Both CPU's could appear the same at the bottom, but one CPU is open between the pins and the other is SHORTED between the 2 pins to act as an identity for the CPU.The problem is that ARM and x86 have conflicting requirements- eg certain pieces of information (interrupt tables and whatnot) which of course have their own specific format and arrangement with both, and the addresses required for each overlap, so it's impossible to have both mapped at the same time.

The only way would be to make it solid state and handled via circuitry- eg an extra pin as mentioned for one or the other that can be used to bankswitch to a different ROM. The 'switch' would need to occur before any booting takes PLACE at all- because booting obviously would run Machine code and they aren't cross-compatible in any way.

Thing is, this would of course require motherboard support- you would never be able to drop in an ARM CPU in a motherboard designed for an x86 CPU and vice versa; which raises further interesting questions particularly since Video BIOS ROM and the ROM code found in other expansion cards is going to typically be X86, and as I recall ARM does not have similar allowances for ROM Shadow by add-on cards (I'm not even sure what Bus it would use, I'm assuming PCI-E would work for ARM).The other problem is is that this is 2 year old news...Quote from: patio on May 08, 2014, 08:19:51 PM
The other problem is is that this is 2 year old news...
Google it...
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AMD Unveils Project Skybridge, a Single Chip for Both x86 ...
MORNING News USA‎ - 1 day ago
http://www.morningnewsusa.com/amd-unveils-project-skybridge-a-single-chip-for-both-x86-and-arm-sockets-239976.html

What AMD's ARM strategy means for PCs, servers
ZDNet‎ - 2 days ago
http://www.zdnet.com/what-amds-arm-strategy-means-for-pcs-servers-7000029134/

AMD announces 'SkyBridge' chips to bring together X86 and ...
http://www.pcworld.com/article/2150775/amd-announces-skybridge-chips-to-bring-together-x86-and-arm.html
PC World
3 days ago

AMD SkyBridge Brings the Best of Both ARM and x86 Worlds
http://www.tomsitpro.com/articles/amd-ambidextrous-processors-arm-x86,1-1934.html
9 hours ago - AMD is taking a more direct approach to marrying the
EDIT. Kinks repaired.
I saw a WW2 documentary yesterday, That means it happened last year, right?Quote from: BC_Programmer on May 08, 2014, 11:28:05 PM
I saw a WW2 documentary yesterday, That means it happened last year, right?
Facebook started the Open Computer Project** in 2011. And in 2012 AMD announced their intent to make new chips with 64 bit designs This year, 2044, AMD announced the idea of a physical design for a socket that could work on both chips. They claim the product will be ready in 2015.

Recently other companies have shown serious interest in the Facebook Open Computer Project. So it was not a documentary of WW II.

** http://en.wikipedia.org/wiki/Open_Compute_Project
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Components include:

Server compute nodes included one for Intel processors and one for AMD processors. In 2013, Calxeda contributed a design with ARM architecture processors.[5]

Open Vault storage building blocks offer high disk densities, with 30 drives in a 2U Open Rack chassis designed for easy disk drive replacement. The 3.5 inch disks are stored in two drawers, five across and three deep in each drawer, with connections via serial attached SCSI.[6] Another design concept was contributed by Hyve Solutions, a division of Synnex in 2012.[7][8]

Mechanical mounting system: Open racks have the same outside width (600 mm) and depth as standard 19-inch racks, but are designed to mount wider chassis with a 537 mm width (about 21 inches). This allows more equipment to fit in the same volume and improves air flow. Compute chassis sizes are defined in multiples of an OpenU, which is 48 mm, slightly larger than the typical rack unit.

Data center designs for energy efficiency, include 277 VAC power distribution that eliminates one transformer stage in typical data centers. A single voltage (12.5 VDC) power supply designed to work with 277 VAC input and 48 VDC battery backup.[4] ...
The above quote shows this is a real project for improving data center. The stories I linked are not stories from two years ago. The AMD thing is this year.
For one think that the author is quite right. AMD can't win Intel at its own game (they have tried, they even had once a better product, but we all know that at the end it didn't matter), so they need to take a huge risk and try to change the game.Quote from: Geek-9pm on May 09, 2014, 12:11:19 AM
Facebook started the Open Computer Project** in 2011. And in 2012 AMD announced their intent to make new chips with 64 bit designs This year, 2044, AMD announced the idea of a physical design for a socket that could work on both chips. They claim the product will be ready in 2015.

Recently other companies have shown serious interest in the Facebook Open Computer Project. So it was not a documentary of WW II.

** http://en.wikipedia.org/wiki/Open_Compute_ProjectThe above quote shows this is a real project for improving data center. The stories I linked are not stories from two years ago. The AMD thing is this year.


None of this is even tangentially related to what I said.

Patio said that it was 2 years old. Partly true, considering AMD announced ARM-based Opteron's in 2012; AMD working with ARM is not news- it is at least 2 years old. That is what you refer to there.

My analogy was that your "citations" that this is not news is based on the age of articles posted. Google results are not citations- they are Google results.

If somebody said WW2 was old news and I posted a link to a google result to a page written 2 days ago- does that make it news?

Of course not.

That said, the actual Pin compatible stuff IS news. I was mostly put off by your inability to actually defend that yourself.

Quote from: jackj on May 09, 2014, 12:28:24 AM
For one think that the author is quite right. AMD can't win Intel at its own game (they have tried, they even had once a better product, but we all know that at the end it didn't matter), so they need to take a huge risk and try to change the game.

It's not really a case of "Winning", I don't think. It's a case of whether the market is profitable for them. Intel and AMD have been leapfrogging each other since 2000 or so, and both companies have done quite well in that- and consumers have gained because of the competition- winning teams all around. AMD's huge risk was the Slot A Athlon which was pretty much when it came down to two choices for CPUs. I don't think it is fair to AMD to say they cannot compete, when they haven't just competed but actually defined standards that Intel now follows (IA-64).




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